Spring-actuated Driver Patents (Class 227/146)
  • Patent number: 10065300
    Abstract: A fastener driving apparatus comprises a gas spring or spring, a drive mechanism, an anvil assembly, and an anvil. The drive mechanism permits transition from engagement with the gas spring, spring or anvil assembly to disengagement from the gas spring, spring or anvil assembly. The anvil and/or anvil assembly are operatively coupled to the gas spring or spring such that after the drive mechanism disengages them, the gas spring piston or the spring moves to imparts a force on the anvil to cause the anvil to move and drive a fastener. The mass of the anvil assembly is preferably greater than 50% of the total mass of the anvil assembly and gas spring moving mass. The gas spring is configured such that the pressure increase during the movement of the gas spring piston by the drive mechanism is less than 30% of the initial pressure in the gas spring.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: September 4, 2018
    Assignee: Tricord Solutions, Inc.
    Inventor: Christopher Pedicini
  • Publication number: 20140374462
    Abstract: Stapler (1) for driving staples (4) into a workpiece (6), comprising a body (2), an elastic member (7) connected to a driver (9) and an articulated arrangement (12) for tensioning of the member (7) comprising a lever (13) with a long arm (15) and a short arm (16) coupled rotatably to the body by a first coupling shaft (14), an articulated arm (17) coupled rotatably to the body by a second coupling shaft (18) and connected to the member (7) in a force-influencing manner, an intermediate joint (19) with a third coupling shaft (20) assigned rotatably to the short arm (16) at a first distance (a) from the first coupling shaft and assigned rotatably to the articulated arm (17) with a fourth coupling shaft (21) at a second distance (b) from the third coupling shaft (20), the first distance has the distance line (a) and the second distance has the distance line (?), which form the angle (?) between themselves, the member (7) is tensioned in that the lever (13) is rotated (N) about coupling shaft (14) from a starting
    Type: Application
    Filed: February 26, 2013
    Publication date: December 25, 2014
    Inventors: Jan Ebbesson, Robert Ohlsson
  • Publication number: 20140374461
    Abstract: A fastener driving apparatus includes a vacuum piston and a drive piston, which vacuum piston, when moved (by way of a motor and linear motion converter), draws a vacuum against the drive piston, which drive piston may be held in place by retention means. An anvil is coupled to the drive piston. The retention means is released electrically or mechanically at or near the point of maximum vacuum volume. This drive piston and anvil assembly is then driven by atmospheric pressure and may strike a fastener to drive it into a substrate. At least one position sensor may be used. Once the fastener is driven, the apparatus may reset to an initial position. At least one parasitic loss seal may be provided to reduce drag force on the drive piston, and a timed dwell may be provided for the vacuum piston for operation.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 25, 2014
    Inventors: Christopher Pedicini, John Witzigreuter
  • Publication number: 20140326776
    Abstract: According to one aspect of the application, an apparatus for driving a fixing element into a substrate having an energy transfer element to transfer energy to the fixing element. Preferably, the energy transfer element is movable between a starting position and a set position, whereby the energy transfer element is in the starting position before the driving-in operation and in the set position after the driving-in operation. According to a further aspect of the application, the apparatus has a mechanical energy storage device to store mechanical energy. It is then preferred for the energy transfer element to transfer energy from the mechanical energy storage device to the fixing element.
    Type: Application
    Filed: November 7, 2012
    Publication date: November 6, 2014
    Inventors: Reinhard Riedl, Joerg Stamm, Ulrich Schiestl
  • Patent number: 8763874
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. An improved lifter design has modified lifting pins that reduce the side-forces on the driver. A pivotable latch acts as a safety device, by preventing the driver from making a full driving stroke at an improper time. An improved latch design has a more durable catching surface.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: July 1, 2014
    Assignee: Senco Brands, Inc.
    Inventors: Thomas A. McCardle, Richard L. Leimbach
  • Publication number: 20130334275
    Abstract: A hand tool for mechanically generating and delivering a driving force to a fastener. The hand tool includes a mechanical force delivery system that is structured and operable to mechanically generate and deliver a driving force to a fastener. The hand tool additionally includes a pneumatic actuation device that is operatively connected to the mechanical force delivery system. The pneumatic actuation device is structured and operable to actuate the mechanical force delivery system such that the mechanical force delivery system mechanically generates and delivers the driving force.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 19, 2013
    Inventors: Lok C. Lam, Brian C. Burke
  • Patent number: 8602282
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: December 10, 2013
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Thomas A. McCardle, Danny L. Bolender, Steve Dickinson, Joseph R. Knueven, Robert L. Lance, Jr., Dan Stoltz, Michael V. Petrocelli
  • Patent number: 8556150
    Abstract: A hand-held drive-in tool for driving in fastening elements includes a drive-in ram (13), a drive (30) for driving the drive-in ram (13) and having a driving spring member (31) for displacing the drive-in ram (13), a device (70) for preloading the driving spring member (31), a locking device (50) having a locking position (54) in which the locking device (50) retains the driving spring member (31) in its preloaded position and a release position (55) into which the locking device (50) is displaced upon actuation of an actuation switch (19) of the drive-in tool (10), and a mechanical blocking device (60) operating independently of the actuation switch (19) and having an active position (68) in which the blocking device (60) retains the locking device (50) in its locking position (54), and a passive position (69) in which the locking device (50) can be displaced in its release position (55).
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: October 15, 2013
    Assignee: Hilti Aktiengesellschaft
    Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
  • Publication number: 20130200129
    Abstract: The present disclosure describes embodiments of a construction apparatus, or tool, that can drive and remove fasteners (e.g., staples). These embodiments have a handle portion, a head portion, and a fastener guide that orients the fastener in a ready-to-be deployed state. Actuation of the head portion can transmit a driving force to the fastener, thereby moving the fastener from the ready-to-be deployed state to a deployed state, which in one example drive the fastener into a target object (e.g., a board). The construction apparatus can also come equipped with a remover element that can transmit a removal force applied to the construction tool to the fastener. In one embodiment, the construction apparatus finds particular use with electrical staples, as the proposed designs can prevent damage to electrical cables, prevent the end user from striking his hand and fingers, and eliminate the need for carrying and/or using additional tools to mount and remove staples.
    Type: Application
    Filed: January 25, 2013
    Publication date: August 8, 2013
    Inventor: Jeremy Paddock
  • Patent number: 8486084
    Abstract: A slap hammer including an adjustable striking member and a releasable retaining mechanism for releasably retaining a sliding weight is disclosed. One described slap hammer comprises a guide rod having a first end and a second end; a striking member coupled to the second end of the guide rod and movable relative to the first end of the guide rod; a sliding weight slidable along the guide rod between the first end of the guide rod and the striking member; a biasing element positioned between the sliding weight and the first end of the guide rod, the biasing element biasing the sliding weight towards the second end of the guide rod; and a releasable retaining mechanism for releasably retaining the sliding weight against the action of the biasing element.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: July 16, 2013
    Inventor: Donald Huene
  • Publication number: 20130161373
    Abstract: According to one feature of the present invention, the tool for driving a fastening element into a substrate comprises an energy transmission element for transmitting energy to the fastening element. The energy transmission element preferably moves between a starting position and a set position, with the energy transmission element being in the starting position prior to a fastener driving step and in the set position following the fastener driving step. According to another feature of the present invention, the fastener drive tool comprises a mechanical energy storage means for storing mechanical energy. The energy transmission element can then be preferably used to transmit energy from the mechanical energy storage means to the fastening element.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 27, 2013
    Applicant: Hilti Aktiengesellschaft
    Inventor: Hilti Aktiengesellschaft
  • Publication number: 20130161372
    Abstract: In accordance with an aspect of the application, a device for the driving in of an affixing element into a substrate has an energy transfer element for the transfer of energy to the affixing element. Preferably, the energy transfer element can be moved between a starting position and a placement position, wherein the energy transfer element is located in the starting position before a driving-in process and in the placement position, after the driving-in process. In accordance with another aspect of the application, the device comprises a mechanical energy storage unit for the storage of mechanical energy. The energy transfer element is then preferably suited for the transfer of energy from the mechanical energy storage unit to the affixing element.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 27, 2013
    Applicant: Hilti Aktiengesellschaft
    Inventor: Hilti Aktiengesellschaft
  • Publication number: 20130153621
    Abstract: According to one aspect of the application, a device for driving a fastening element into an underlying surface comprises a force deflector. The force deflector preferably comprises a protective layer.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
    Applicant: Hilti Aktiengesellschaft
    Inventor: Hilti Aktiengesellschaft
  • Patent number: 8453903
    Abstract: A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: June 4, 2013
    Assignee: Worktools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 8393512
    Abstract: A fastener driving tool includes a housing, a motor, a plunger, a spring, a drum, and one of a cable and a sheet member. The motor is provided in the housing. The plunger is provided in the housing for impacting a fastener in a fastener driving direction. The spring urges the plunger in the fastener driving direction. The drum is rotatably supported in the housing and is rotationally driven by the motor. The one of a cable and a sheet member is capable of being wound over the drum and has one end fixed to the drum and another end acting on the spring for transmitting a driving force of the motor to the spring. The spring is configured to accumulate a resilient energy therein for impacting the fastener by the plunger. The resilient energy of the spring is accumulated by forcible resilient deformation thereof as a result of winding of the one of the cable and the sheet member over the drum rotationally driven by the motor.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 12, 2013
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Toshihito Sakaba, Hiroyuki Oda, Yoshihiro Nakano
  • Patent number: 8387718
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: March 5, 2013
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Shane Adams, Thomas W. Clark, Teresa Petrocelli
  • Publication number: 20120325887
    Abstract: The invention concerns a fastener driving tool comprising a drive motor, a gyrating mass, and a rammer head, wherein the gyrating mass above the drive motor can be made to rotate, wherein a spring mechanism can be tensioned by the gyrating mass via a detachable traction, in particular, a frictional locking, wherein the rammer head can be driven in a ramming direction via the tensioned spring mechanism.
    Type: Application
    Filed: April 19, 2012
    Publication date: December 27, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventor: Iwan WOLF
  • Patent number: 8286722
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 16, 2012
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Shane Adams, Thomas W. Clark, Michael V. Petrocelli, Teresa A. Petrocelli, legal representative
  • Patent number: 8276799
    Abstract: A stapling device includes a device body to which a depressing bar is pivotally mounted. Through a link plate, the depressing bar selectively drives a staple striking assembly downward for striking out staples. The depressing bar has a depressing end that is located at the same side as the portion of the device body where the staple striking assembly is mounted. The link plate has an end to which a lifting member that selectively engages and lifts the staple striking assembly is mounted. . . . The staple striking assembly includes a guide board that can be set in engagement with and thus driven by the lifting member. The staple striking assembly, when lifted to a predetermined height level, is released to strike out staples and the lifting member is caused to transversely shift to allow for the instantaneous downward movement of the staple striking assembly for striking out staples.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: October 2, 2012
    Assignee: Jann Yei Industry Co., Ltd.
    Inventor: Ton-Yi Chen
  • Patent number: 8267296
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: September 18, 2012
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Thomas A. McCardle, Danny L. Bolender, Steve Dickinson, Joseph R. Knueven, Robert L. Lance, Jr., Dan Stolz, Michael V. Petrocelli, Teresa Petrocelli, legal representative
  • Patent number: 8267297
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: September 18, 2012
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Thomas A. McCardle, Danny L. Bolender, Steve Dickinson, Joseph R. Knueven, Robert L. Lance, Jr., Dan Stolz, Michael V. Petrocelli, Teresa Petrocelli, legal representative
  • Patent number: 8230941
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: July 31, 2012
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Shane Adams, Thomas W. Clark, Michael V. Petrocelli, Teresa Petrocelli, legal representative
  • Publication number: 20120153001
    Abstract: The invention relates to an electrically powered bolt setting device (1) for setting of fastening elements (3) with a spring unit (10) which acts as an intermediate energy store in order to store energy, originating from an electric drive (25), in the bolt setting device (1), and said energy can be released suddenly during a bolt setting process. In order to create an electrically powered bolt setting device which has a simple design and can be produced at low cost and/or is low in cost to operate, the spring unit (10) cooperates with a unit to adjust the interim-stored energy.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 21, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventors: Klaus Bertsch, Harald Fielitz, Karl Franz, Matthias Blessing, Ulrich Schiestl
  • Patent number: 8201481
    Abstract: There is a tool configured to tack a coupling device to a surface including a handle configured to permit a user to grasp the tool. The tool also includes a shaft member coupled to the handle and including a spring-loaded mechanism, configured to provide a force to tack a coupling device to a surface and to release the coupling device to the surface. In addition, the tool includes a head member coupled to the shaft member and configured to receive and hold a coupling device head in preparation for tacking. The head member includes a head body, a magnet disposed within the head body, and a socket member extending from the head body and including a curved socket bottom adjacent the magnet and a rim having a beveled cross-section; wherein the head member includes a gap between the magnet and the coupling device.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: June 19, 2012
    Inventor: Victor D. Williams
  • Patent number: 8113404
    Abstract: A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: February 14, 2012
    Assignee: Worktools, Inc.
    Inventor: Joel S. Marks
  • Publication number: 20110303720
    Abstract: An electrically operable bolt driving tool is disclosed. The tool includes an electric drive motor which can be driven by an electric power supply system and delivers driving power to a temporary storage which can store the driving power temporarily and can release it suddenly in a driving operation to drive a bolt. To further increase the safety in operation of electrically operable bolt driving tools, the bolt driving tool includes a safety mechanism by which the electric power supply system can be connected to the bolt driving tool in such a way that the temporary storage is automatically transferred from a storage state to a defined resting state when the electric power supply system is disconnected from the bolt driving tool.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 15, 2011
    Applicant: Hilti Aktiengesellschaft
    Inventors: Wolfgang BECK, Stefan MAYER, Klaus BERTSCH
  • Publication number: 20110303729
    Abstract: According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. According to another aspect of the application, the device comprises a mechanical-energy storage device for storing mechanical energy. The energy-transfer element is then suitable preferably for transferring energy from the mechanical-energy storage device to the fastening element.
    Type: Application
    Filed: June 13, 2011
    Publication date: December 15, 2011
    Applicant: HILTI AKTIENGESELLSCHAFT
    Inventors: Wolfram Hahn, Ulrich Schiestl
  • Publication number: 20110303730
    Abstract: According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. According to another aspect of the application, the device comprises a mechanical-energy storage device for storing mechanical energy. The energy-transfer element is then suitable preferably for transferring energy from the mechanical-energy storage device to the fastening element.
    Type: Application
    Filed: June 13, 2011
    Publication date: December 15, 2011
    Applicant: HILTI AKTIENGESELLSCHAFT
    Inventors: Matthias Blessing, Robert Spasov, Stefan Miescher, Harald Fielitz, Karl Franz
  • Publication number: 20110290846
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Inventors: Richard L. Leimbach, Thomas A. McCardle, Danny L. Bolender, Steve Dickinson, Joseph R. Knueven, Robert L. Lance, JR., Dan Stolz, Michael V. Petrocelli, Teresa Petrocelli
  • Publication number: 20110214536
    Abstract: There is a tool configured to tack a coupling device to a surface including a handle configured to permit a user to grasp the tool. The tool also includes a shaft member coupled to the handle and including a spring-loaded mechanism, configured to provide a force to tack a coupling device to a surface and to release the coupling device to the surface. In addition, the tool includes a head member coupled to the shaft member and configured to receive and hold a coupling device head in preparation for tacking. The head member includes a head body, a magnet disposed within the head body, and a socket member extending from the head body and including a curved socket bottom adjacent the magnet and a rim having a beveled cross-section; wherein the head member includes a gap between the magnet and the coupling device.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 8, 2011
    Inventor: Victor D. Williams
  • Patent number: 8011441
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: September 6, 2011
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Shane Adams, Thomas W. Clark, Michael V. Petrocelli, Teresa Petrocelli, legal representative
  • Patent number: 8011547
    Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: September 6, 2011
    Assignee: Senco Brands, Inc.
    Inventors: Richard L. Leimbach, Thomas A. McCardle, Danny L. Bolender, Steve Dickinson, Joseph R. Knueven, Robert L. Lance, Jr., Dan Stolz, Michael V. Petrocelli, Teresa Petrocelli, legal representative
  • Patent number: 8011549
    Abstract: A driving tool with a flywheel, a driver, an actuator and a roller that is moveable between an unactuated position and an actuated position. Positioning of the roller in the actuated position forces an engagement surface on the driver into contact with a rotating edge of the flywheel to transfer energy from the flywheel to the driver so that the driver will translate along an axis. The actuator at least partially initiates movement of the roller from the unactuated position to the actuated position.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: September 6, 2011
    Assignee: Black & Decker Inc.
    Inventors: Alan Berry, William D. Sauerwein, Craig A. Schell, Jeffrey A. Elligson, Charles L. Bradenbaugh, IV, Howard T. White, James J. Kenney
  • Publication number: 20110073632
    Abstract: A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber.
    Type: Application
    Filed: November 4, 2010
    Publication date: March 31, 2011
    Applicant: WORKTOOLS, INC.
    Inventor: Joel S. Marks
  • Patent number: 7878383
    Abstract: A tool for driving a floor staple including an outer tubular body and a rod insertable into the tubular body. The tubular body has an end tip having angled surfaces and an inner bore. The rod is biased with the inner bore. The inner bore has a staple slot allowing an exposed end a staple to fit within the outer tubular body. The rod has a hammering head, which when struck, drives staple into a flooring plank.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: February 1, 2011
    Assignee: Crain Cutter Company, Inc.
    Inventors: Scott Marschel, Jack Clark, Mike Drinkard
  • Patent number: 7815089
    Abstract: A fastener gun includes a housing having a plunger and a power spring for driving a fastener into a workpiece, and a trigger arm pivotally attached to the housing at a trigger pivot. One end of the trigger arm lifts the plunger to bias the power spring when the trigger arm pivots in a first direction toward the housing. A member contacting the trigger arm is provided that moves away from the trigger pivot as the handle moves toward the housing, so that force is applied at different locations on the trigger arm when the handle is squeezed, increasing the mechanical advantage of using the fastener gun.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: October 19, 2010
    Assignee: Arrow Fastener Co., LLC.
    Inventor: Ilya Shor
  • Patent number: 7731071
    Abstract: A staple leg guide for use with desktop staplers having a channel shape, with two downward extending fingers that support the underside of the staple legs as the staple is driven into a stack of sheet media to reduce kinking and improper penetration of the stack by the staple leg.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: June 8, 2010
    Assignee: Accentra, Inc.
    Inventors: Brian E. Melgaard, Joel S. Marks, Warren Yan
  • Publication number: 20100127036
    Abstract: A tool for driving a floor staple including an outer tubular body and a rod insertable into the tubular body. The tubular body has an end tip having angled surfaces and an inner bore. The rod is biased with the inner bore. The inner bore has a staple slot allowing an exposed end a staple to fit within the outer tubular body. The rod has a hammering head, which when struck, drives staple into a flooring plank.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Applicant: CRAIN CUTTER COMPANY
    Inventors: Scott Marschel, Jack Clark, Mike Drinkard
  • Patent number: 7708179
    Abstract: A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: May 4, 2010
    Assignee: Worktools, Inc.
    Inventor: Joel S. Marks
  • Publication number: 20100102104
    Abstract: A fastener driving tool includes a housing, a motor, a plunger, a spring, a drum, and one of a cable and a sheet member. The motor is provided in the housing. The plunger is provided in the housing for impacting a fastener in a fastener driving direction. The spring urges the plunger in the fastener driving direction. The drum is rotatably supported in the housing and is rotationally driven by the motor. The one of a cable and a sheet member is capable of being wound over the drum and has one end fixed to the drum and another end acting on the spring for transmitting a driving force of the motor to the spring. The spring is configured to accumulate a resilient energy therein for impacting the fastener by the plunger. The resilient energy of the spring is accumulated by forcible resilient deformation thereof as a result of winding of the one of the cable and the sheet member over the drum rotationally driven by the motor.
    Type: Application
    Filed: March 25, 2008
    Publication date: April 29, 2010
    Inventors: Hideyuki Tanimoto, Toshihito Sakaba, Hiroyuki Oda, Yoshihiro Nakano
  • Patent number: 7694863
    Abstract: A hand-held drive-in tool for driving fastening elements (60) in a workpiece (U) includes a drive-in ram (13) for driving the fastening elements (60) in the workpiece (U), at least one drive spring member (31) for driving the drive-in ram (13), a preloading device (70) for the drive-in ram (13) and the drive spring member (31), a locking device (50) which retains the drive-in ram (13) and the drive spring member (31) in a preloaded position (33) when the locking device is located in its locking position (54), an actuation switch (19), for initiating the drive-in process for displacing the locking device (50), and into a release position (55) thereof, and at least one further switch for displacing the locking device (50) in the release position thereof (55) independent from actuation of the actuation switch (19).
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 13, 2010
    Assignee: Hilti Aktiengesellschaft
    Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
  • Patent number: 7665644
    Abstract: A stapler has a body including two holes formed on two sidewalls thereof and a first link defined on one sidewall thereof. A magazine is assembly installed in the bottom of the body. A handle assembly includes a handle lever formed on an end thereof and a handle stop defined on another end thereof. A second link and a through hole are between the handle lever and the handle stop. A connector is disposed in the second link and pivotally couples to the two holes, and a first roller is inserted through the through hole and moves rotatably in the first link of the body. A power spring is disposed in the body, and a plunger includes a first hole and a second hole. When the handle lever is pressed downwardly and the handle stop lifts the plunger upwardly, the first roller is driven to move rotatably in the first link of the body to detach the handle stop from the plunger gradually.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: February 23, 2010
    Inventor: Chih-Wei Hu
  • Patent number: 7644849
    Abstract: An effort-saving stapler includes a shell, a magazine, a hammer, an elastic element, a block, a trigger and an extensive element. The magazine is disposed in the shell for supporting and feeding nails. The hammer is disposed in the shell for hammering the nails, one at a time. The elastic element is disposed in the shell for biasing the hammer. The block is disposed in the shell. The trigger is movably and pivotally connected to the shell and engaged with the block at an engagement point. The extensive element includes a first end connected to the hammer and a second end telescopically connected to the trigger. When the trigger is operated, the hammer is lifted by the extensive element and the engagement point is moved towards the hammer.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: January 12, 2010
    Assignee: Apex Mfg. Co., Ltd.
    Inventors: Eric Tsai, Pi-Yi Chang, Chih-Wei Hu
  • Patent number: 7637407
    Abstract: An example fastener gun includes a housing having a plunger and a power spring for driving a fastener into a workpiece, and a trigger arm pivotally attached to the housing at a trigger pivot. The trigger arm lifts the plunger to bias the power spring when the trigger arm pivots in a first direction. The example fastener gun also includes a handle extending upwardly from the housing and pivotally attached to the housing at a handle pivot, and a roller for pivoting trigger arm in the first direction when the handle moves toward the housing. The roller moves away from the trigger pivot when the handle moves toward the housing.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: December 29, 2009
    Assignee: Arrow Fastener Co., Inc.
    Inventor: Ilya Shor
  • Patent number: 7578420
    Abstract: A drive machine which includes a housing, a motor disposed in the housing, a magazine which is attached to the housing and supplies a nail to a drive position, a plunger for driving the nail, a spring which impels and accelerates the plunger to the drive position by elastic force and a chain or belt which is driven by the motor to thus accumulate elastic energy in the spring. The chain has a projection which provides a first state where elastic energy is accumulated in the spring and a second state where the accumulated elastic energy is released.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: August 25, 2009
    Assignee: Hitachi koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Toshihito Sakaba, Hiroyuki Oda, Takashi Ueda, Yoshihiro Nakano
  • Publication number: 20090194576
    Abstract: A power beating device using the inclined plane principle comprises: a driving unit having a spring for storing and releasing energy so as to drive an impact unit; wherein the driving unit has at least one driving surface; an actuator serves to actuate the driving surface so that the impact unit is lifted with the driving unit, and the spring deform to store energy; when the impact unit is lifted to a predetermined height, it will rest and then the spring will release energy to drive the impact unit to have the effect of beating.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 6, 2009
    Inventor: Feng-Ho WANG
  • Patent number: 7472812
    Abstract: A method and apparatus for precisely locating materials on a foundation includes an elongated survey rod, including a triggering surface, and fastener driver secured to the survey rod. The fastener driver includes a trigger. The triggering surface is located in a position to selectively activate the trigger when the fastener is located at a desired precise location on a foundation.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: January 6, 2009
    Inventors: Boyd Clark Wade, Jimmy H. Torbett
  • Publication number: 20080257934
    Abstract: According to an aspect of the present invention, there is provided a nailing machine including: a housing; a motor that is accommodated in the housing; a plunger that plunges a nailing member; and a spring that is expanded or compressed by the motor to store an elastic energy therein and that accelerates the plunger by releasing the elastic energy, wherein a spring constant of the spring at one end of the spring in an expanding/compressing direction is set smaller than that of the spring at a center in the expanding/compressing direction.
    Type: Application
    Filed: April 17, 2008
    Publication date: October 23, 2008
    Inventors: Hideyuki TANIMOTO, Hiroyuki Oda, Yoshihiro Nakano, Takashi Ueda
  • Patent number: 7328827
    Abstract: A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: February 12, 2008
    Assignee: WorkTools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 7252217
    Abstract: A staple gun with a latch assembly has a housing, a handle, a pivot pin, a spring, a staple driver and a staple magazine. The housing has two half-casings and a handle opening. The half-casings are symmetrical and connected to each other, and each half-casing has a latch tab. The latch tab is formed on and protrudes in from the half-casing. The handle is connected pivotally to the housing through the handle opening and has an inner end and a latch clip. The inner end extends into the housing between the half-casings and has two sides and two mounting slots formed respectively in the sides of the inner end and aligning with each other. The latch clip is mounted in and protrudes through the mounting slots to selectively engage the latch tabs and hold the handle in place.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: August 7, 2007
    Inventor: Jui-Yuan Lin