Spring Patents (Class 227/132)
  • Patent number: 10654155
    Abstract: A driver return assembly can be positioned to return a concrete nail driver of a cordless electric powered nailer to the home position. A return rack can be fixedly coupled to and positioned along a longitudinal length of the concrete nail driver The driver return assembly can include a solenoid driving a plunger in a reciprocating motion in a homeward direction and a driven direction. A return pawl can be coupled to the plunger and pivotable into a pawl raised position relative to the plunger in which the pawl is engageable with the return rack during movement of the plunger in the homeward direction, and pivotable into a pawl lowered position relative to the plunger in which the pawl is not engageable with the return rack during movement of the plunger in the driven direction.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: May 19, 2020
    Assignee: Black & Decker Inc.
    Inventors: Jeffrey J. Meyer, Stuart E. Garber
  • Patent number: 10442067
    Abstract: An extendible wire guide is slidably fitted at the front of a staple gun tool housing. An easily operated lever switch is linked to the wire guide to enable the wire guide to be deployed or retracted. The lever switch includes an up and a down position corresponding to a retracted and an extended position of the wire guide. The wire guide is resiliently biased, preferably toward the retracted position. The lever switch acts on the wire guide against the bias through a cam action on an upper edge of the wire guide. A bias spring is preloaded in a subassembly of the wire guide and bias spring for simplified final assembly.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 15, 2019
    Assignee: WORKTOOLS, INC.
    Inventor: Joel S. Marks
  • Patent number: 10300589
    Abstract: A fastening tool assembly has a magazine body in a sleeve to convey fasteners to a housing outlet. Pivoting a lever relative to the housing, translates a knife to a loaded position, thereby disengaging from the knife, permitting a spring to return the knife to an unloaded position to drive a fastener through the outlet. A handle is pivotally connected to the housing. A roller is directly connected to the lever and the handle for permitting translation of the lever relative to the handle as the lever and the handle are pivoted relative to the housing. A spring-loaded bracket is operably connected to the magazine body for translation and rotation relative to the body. A latch is mounted to the housing to engage the bracket and maintain the magazine body in a retracted position, and is movable to a disengaged position wherein the bracket extends from the magazine body.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 28, 2019
    Assignee: ARROW FASTENER COMPANY, LLC
    Inventors: Jonathan Sokol, Stephen Craig Pennington, Wai Ho Choy, Michael Reedy
  • Patent number: 10239190
    Abstract: The present invention provides an improved release mechanism for clamping tools where problems of thread slipping due to worn out thread can be reduced by the structure of a plunger with a small diameter section and the engagement of the thread shaft is made more secure by the cam action on account of the shape of the plunger. A protrusion extends from a push button on a top portion of the half-threaded nut. Threads are formed on an upper portion of the hole for engaging the threaded shaft. The middle portion of the plunger is made to have a section of small diameter allowing the protrusion to be pushed downward in a normal position and allowing the protrusion to rely on the resilient power of the helical spring to push it upward into the small diameter section.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: March 26, 2019
    Inventors: Gary Tsui, Weinan Liu, Shaosheng Chen
  • Patent number: 10213911
    Abstract: A fastener-driving tool includes a housing and a workpiece-contacting element movable between a rest position and an activated position. The tool also includes a trigger connected to the housing and movable between a rest position and an activated position, a control valve including an actuating pin, an actuation lever movably connected to the trigger and movable between a rest position and an actuating position adjacent to the actuating pin, and a trigger control mechanism associated with the actuation lever and configured for moving and holding the actuation lever in the actuating position. In a powered mode, the trigger control mechanism causes the-actuation lever to move and remain in the actuating position such that the tool is actuated each time the workpiece-contacting element contacts a workpiece and moves to the activated position causing the actuation lever to contact the actuating pin and initiate an actuation of the tool.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 26, 2019
    Assignee: Illinois Tool Works Inc.
    Inventors: Stephen P. Moore, Murray Z. Weinger, Daniel J. Birk, Hanxin Zhao, Ricardo Segura, Ryan L. Francis
  • Patent number: 9919408
    Abstract: Staple gun for driving staples into a workpiece includes a frame with a driver conveyable upward and downward. In the downward movement, the driver executes a drive stroke driving the staple. In the upward movement, an activation member conveys the driver to a highest height and releases the driver to execute the drive stroke. An elongated elastic member has a first end coupled to the driver and a second end to a bearing pin assigned to the frame. A first breakpoint pin is placed between the bearing pin and the driver at a first distance from the bearing pin, and a second breakpoint pin between the driver and the first breakpoint pin is arranged at a second distance from the bearing pin and is movable between first and second positions disengaging and engaging the elastic member, respectively. The first distance is related to the highest height as 1.6-2.0:1.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: March 20, 2018
    Assignee: Isaberg Rapid AB
    Inventor: Jan Ebbesson
  • Patent number: 9820739
    Abstract: A surgical stapler includes a handle assembly 80 made of paper pulp products or other eco-friendly material. The handle assembly and components of the staple mechanism housing are designed to accommodate the decreased material strength of the handle assembly. Handle retainer ears 110 are attached to the staple mechanism housing and prevent flexing of the lever grip. The retainer ears in combination with a raised circular boss 16 of the handle assembly facilities the use of lower strength materials, such as paper pulp products. An efficient staple housing mechanism includes a new return spring 120, a visual guide rod or alignment indicator 150 and a flattened stapler guide 130. An improved lever grip includes concentrically trimmed arc in the lever grip sidewalls 117. An improved lever grip includes an extended arched rear section 113 to comport with a new positive mating area 115 of the handle.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: November 21, 2017
    Assignee: NEWGEN SURGICAL, INC.
    Inventors: Robert N Chase, Paul Kardel
  • Patent number: 9808923
    Abstract: A nail machine with effort-saving mechanism is provided, including: a shell body; an operating mechanism, disposed on the shell body and including a pressing lever, a driving rod and a linkage, the operating mechanism provided for being operated to move between a first position and a second position; an actuating member, two ends thereof having a sliding portion and an engaging portion respectively; a striking force accumulating mechanism, including a striking board and a force accumulating member, the striking board being movable between an initial position and a releasing position; wherein when the operating mechanism moves toward the second position, the engaging portion is engaged with the striking board, and the striking board moves toward the releasing position; when the operating mechanism is in the second position, the engaging portion is detached from the striking board, and the striking board moves toward the initial position.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: November 7, 2017
    Assignee: Apex MFG Co., Ltd.
    Inventor: Po-Hung Hu
  • Patent number: 9463561
    Abstract: The invention concerns a driving tool comprising a rotating motor (16), in particular, an electric motor, a gas spring (8) with an elastically compressible gas volume (9), and a firing piston (5), wherein the gas spring (8) can be tensioned via a tensioning device (10) with the motor, so as to accelerate after a release from the tensioned state the firing piston (5) in a firing direction, wherein at least one part of the tensioning device (10) is located within the gas volume of the tensioning spring.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: October 11, 2016
    Assignee: Hilti Aktiengesellschaft
    Inventor: Karl Franz
  • Patent number: 9446508
    Abstract: A stored energy stapler includes a base portion and a first lever pivotally coupled to the base portion. The first lever includes a front end and a back end. The stapler also includes a second lever pivotally coupled to the base portion about a pivot point, the second lever having a front end and a back end, and a striker element at the front end for driving a staple out of the stapler. The stapler also includes a biasing member coupled to both the first lever and the second lever that biases the back ends of the first and second levers apart from one another. The pivot point is disposed between the striker element and the biasing member.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: September 20, 2016
    Assignee: ACCO Brands Corporation
    Inventor: Randeep S. Dhillon
  • Patent number: 9402628
    Abstract: Disclosed is a surgical stapling apparatus that includes a cartridge assembly which is capable of being reloaded during a surgical procedure without being removed from the surgical site. This allows a surgeon to continue a surgical operation without withdrawing or removing the surgical stapler for reloading and thus reduces the length of the surgery while allowing the physician to concentrate solely on the surgical procedure rather than dividing attention between the surgical procedure and reloading of the surgical stapler. The surgical stapling apparatus includes an elongate member having a plurality of fasteners arranged in a plurality of longitudinally extending rows which is longitudinally translatable through the cartridge to position the plurality of fasteners relative to a plurality of retention slots extending through an upper surface of the cartridge.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: August 2, 2016
    Assignee: Covidien LP
    Inventor: John W Beardsley
  • Patent number: 9323129
    Abstract: An object of the present disclosure is to increase a frame speed at the time of performing continuous shooting in a shutter drive device by controlling a charge member by using a position sensor and a temperature sensor. The shutter drive device of the present disclosure includes: a shutter mechanism; a charging member that drives the shutter mechanism by using a plurality of gears, a rack member, and a motor; the temperature sensor mounted on the charging member; a position sensor that is mounted on the charging member, and detects the rack member moved to a predetermined position; and a control part that controls stop timing of the motor based on a position of the rack member detected by the position sensor and a temperature detected by the temperature sensor.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: April 26, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasuhiro Nakagai, Hiroki Aono, Yoshihiro Nakajima
  • Patent number: 9296098
    Abstract: A nailing device of the present invention mainly includes a striker for driving nails, a restriction mechanism, a power storing mechanism, and an operation mechanism. By cooperation of the components, the striker is kept in position without moving during the course of power storing, and the striker is automatically recovered to an initial position after firing. Thus, nail can fill to the right position accurately in continuous work. For continuously and quickly working, the nailing device is protected from nail jamming.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 29, 2016
    Assignee: APEX MFG. CO., LTD.
    Inventor: Jing-Li Wang
  • Patent number: 8978952
    Abstract: Power spring configurations for a spring energized fastening device includes a compact double torsion power spring and two opposed compact single torsion springs. Simplified structures to hold the springs in a stable pre-loaded position are disclosed. Each coil has forward extending arms including an angled portion and forward vertically coincident portions. The double torsion spring has a self-locking crossing geometry to hold a pre-loaded rest position. The opposed two springs have a bridge and a mandrel to hold the rest position. A lever presses arms of the spring between a striker and the coil including a compact nesting condition. A tab of the striker extends forward to provide a release edge and a positioning torque bias upon the striker.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 17, 2015
    Assignee: Worktools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 8960516
    Abstract: A fastener driving tool is capable of not only linearly driving but also rotationally fastening a fastener into a workpiece P. The fastener driving tool includes a housing 2, a nose portion 40 formed with an injection passage 40a through which a fastener 41 is driven, a magazine 4 accommodating fasteners 41 and supplying a fastener 41 to the nose portion 40, a push lever 5 movable relative to the housing 2 upon depression against the workpiece P, combustion chamber frames 12, 22 movable in the housing 2 in accordance with the movement of the push lever 5, and first and second cylinders 7, 8 fixed to the housing 2. First and second pistons 71, 81 are movably disposed in the first and second cylinders 7,8, respectively, and a bit 9 extends from the first piston 71. A rod 14 formed with a rack 14A extends from the second piston 72. The rack 14A is engageable with a motion conversion mechanism 6 for converting a linear motion of the rod 14 into rotational motion of the bit 9.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 24, 2015
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yoshimitsu Iijima, Norikazu Baba, Yasuki Ohmori, Shouichi Hirai
  • Patent number: 8939342
    Abstract: A driving tool with a driver and a motor-driven flywheel that can be engaged by the driver to propel the driver along a driver axis. The driving tool includes a return mechanism with a rail onto which the driver is received. The rail extends parallel to the driver axis.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: January 27, 2015
    Assignee: Black & Decker Inc.
    Inventors: Lee M. Brendel, Paul G. Gross, Larry E. Gregory
  • Patent number: 8915416
    Abstract: A nail guiding device for nailers includes a guide plate located between the opening of the casing of the nailer and the magazine. The guide plate has a guide slot and two flanges on two sides of the guide slot. The end of the cover contacts the flanges and the strike plate is movable within the guide slot. The guide plate has at least one guide block on a face facing the opening. An adjustment plate is located in the casing and has at least one adjustment block. A resilient member located in the casing and biases the guide plate to make the at least one guide block contact the at least one adjustment block or move over the at least one guide block to adjust the distance between the guide plate and the magazine, such that the nails of different sizes can be used in the nailer.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: December 23, 2014
    Inventor: Tsung-Wen Huang
  • Patent number: 8844787
    Abstract: A spring-type fastener driving tool includes a plunger having a blade that drives in fasteners, a spring that urges the plunger downwards and is capable of being compressed upwards, a spring compression mechanism unit that includes a drum that causes the plunger to move in a compression direction of the spring based on rotational force of a motor, a reduction mechanism unit, and a one-way clutch than prohibits reverse rotation of the motor. Reverse rotation of the drum due to the urging force of the spring is prevented by providing the one-way clutch between an input side rotating shaft of the reduction mechanism unit and a rotation output shaft of the motor.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: September 30, 2014
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yukihiro Shima, Hideyuki Tanimoto, Hiroyuki Oda, Yoshihiro Nakano, Takashi Ueda
  • Publication number: 20140284369
    Abstract: An embodiment of the present application provides a staple-ejecting type stapler, which can use an energy storing and energy releasing assembly to store energy by means of the lever principle and to generate an elastic force by releasing the elastic potential energy. Under the action of the elastic force, a staple driver pushes a staple to pierce through paper, and legs of the staple are bent by an anvil plate, thereby realizing the binding function in a convenient and labor-saving manner.
    Type: Application
    Filed: December 2, 2013
    Publication date: September 25, 2014
    Applicant: GuangZhou PanYu Tung Yung Stationery MFY., LTD.
    Inventors: Xiaorong Yang, Zhongmin Duan, Changhai Dai
  • Publication number: 20140263536
    Abstract: A fastening tool assembly is provided with a housing having a contact surface to contact a workpiece. A magazine is mounted in the housing to store fasteners and to convey the fasteners to a fastener outlet. A knife is mounted in the housing for translation between a latched position and a release position to drive a fastener from the magazine through the outlet during translation to the release position. A biasing member is mounted in the housing and is operably connected to the knife to bias the knife to the release position. A handle is mounted to the housing to translate relative to the housing. The handle is operably connected to the knife and the biasing member to load the biasing member and release the knife and the biasing member, thereby permitting the biasing member to return the knife to the release position to drive a fastener through the outlet.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Jonathan Sokol, Gregg Malanga
  • Patent number: 8807413
    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: Grant
    Filed: June 13, 2011
    Date of Patent: August 19, 2014
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ulrich Schiestl, Karl Franz, Klaus Bertsch
  • Patent number: 8777078
    Abstract: A driving tool is provided in which contact arms of the driving tool are symmetrically arranged at lateral sides of the drive passage, and contact portions of the contact arms are movable between an ON position and an OFF position. Further, the driving tool is configured such that each contact portion is independently movable between the ON position and the OFF position, and when both of the contact portions are moved to the ON position, the driving operation of a drive unit is allowed to operate, and when only one of the contact portions is moved to the ON position, the driving operation of the drive unit is not allowed to operate.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 15, 2014
    Assignee: Makita Corporation
    Inventors: Nobuyuki Kakuda, Naoharu Ishikawa
  • Patent number: 8695860
    Abstract: A nail guiding structure of the present invention is disposed inside of the nail gun having a nail rail. The nail guiding structure includes one or more supporting members and a holding mechanism. The supporting member can move between a first and a second position, wherein the supporting member can move toward the first position to elastically push nails in the air gun, so that the nails can be vertically held in front of the nail rail. The holding mechanism can selectively hold the supporting member, so that the supporting cannot move back to the second position. Thereby, a user can move the holding mechanism to adapt for different thicknesses of nails. Only one nail can move to the front of the nail rail every time when a punching board of the nail gun punches. Consequently, the problems of nail jamming or crookedly stapling are prevented.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: April 15, 2014
    Assignee: Apex Mfg. Co., Ltd.
    Inventors: Jing-Li Wang, Rong-Yu Wang
  • Publication number: 20140069982
    Abstract: a labor-saving stapler having a base, an anvil, a pair of frames, a top pin passing across the frames, a staple magazine, a first elastic element between the base and the staple magazine, a striker lever having a striker, a second elastic element between the staple magazine and the striker lever, a pressing lever, a roller pin passing across the lever frame, a roller covering on the roller pin and touching the striker lever, and a hand cover. The stapler is labor-saving and quiet.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Inventor: Hongbo Zhao
  • Patent number: 8668128
    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: Grant
    Filed: November 4, 2010
    Date of Patent: March 11, 2014
    Assignee: Worktools, Inc
    Inventor: Joel S. Marks
  • 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
  • Patent number: 8550323
    Abstract: A technique is provided which contributes to improvement in workability in a driving tool. The driving tool includes a cam switching member 183 and a driving mechanism 115. The cam switching member 183 normally holds a cam member 137 in an inoperative position, and when a user's driving operation is performed, it performs a switching movement to move the cam member 137 from the inoperative position to an operative position and further to return the cam member 137 from the operative position to the inoperative position. When the earn member 137 moves from the inoperative position to the operative position, the earn member 137 moves a driving member 133 for the driving mechanism to a first position in a direction of a rotational axis of a rotating member 131. At this time, the driving mechanism 115 mechanically engages with the driving member 133 for the driving mechanism in the first position and performs a movement of driving a material to be driven.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: October 8, 2013
    Assignee: Makita Corporation
    Inventor: Yasuyuki Fujimoto
  • Patent number: 8550322
    Abstract: A spring-energized stapler having a pliers type configuration, wherein papers and like items are fastened at a front end and the stapler is normally gripped and squeezed at a rear end. A compact mechanism and independent handle linkages provide a compact overall shape in a high efficiency action. An upper handle is pivoted at a front, top of a housing with a pressing area spaced at least one half the handle length away from the upper handle pivot. A lower handle includes a multi-segment cam link to a base to provide a minimal gripping distance with a large clamping force at an anvil. A simplified front-loading mechanism provides a compact, low cost assembly. A release latch holder is located behind the striker for a compact front end.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: October 8, 2013
    Assignee: Worktoools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 8534527
    Abstract: A driving tool with a driver and a motor-driven flywheel that can be engaged by the driver to propel the driver along a driver axis. The driving tool includes a return mechanism with a rail onto which the driver is received. The rail extends parallel to the driver axis.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: September 17, 2013
    Assignee: Black & Decker Inc.
    Inventors: Lee M Brendel, Paul G Gross, Larry E Gregory
  • Publication number: 20130228608
    Abstract: A fastening tool assembly has a magazine body in a sleeve to convey fasteners to a housing outlet. Pivoting a lever relative to the housing, translates a knife to a loaded position, thereby disengaging from the knife, permitting a spring to return the knife to an unloaded position to drive a fastener through the outlet. A handle is pivotally connected to the housing. A roller is directly connected to the lever and the handle for permitting translation of the lever relative to the handle as the lever and the handle are pivoted relative to the housing. A spring-loaded bracket is operably connected to the magazine body for translation and rotation relative to the body. A latch is mounted to the housing to engage the bracket and maintain the magazine body in a retracted position, and is movable to a disengaged position wherein the bracket extends from the magazine body.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: ARROW FASTENER CO., LLC
    Inventors: Jonathan Sokol, Stephen Craig Pennington, Wai Ho Choy, Michael Reedy
  • Publication number: 20130228607
    Abstract: Power spring configurations for a spring energized fastening device includes a compact double torsion power spring and two opposed compact single torsion springs. Simplified structures to hold the springs in a stable pre-loaded position are disclosed. Each coil has forward extending arms including an angled portion and forward vertically coincident portions. The double torsion spring has a self-locking crossing geometry to hold a pre-loaded rest position. The opposed two springs have a bridge and a mandrel to hold the rest position. A lever presses arms of the spring between a striker and the coil including a compact nesting condition. A tab of the striker extends forward to provide a release edge and a positioning torque bias upon the striker.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 5, 2013
    Applicant: WORKTOOLS, INC.
    Inventor: JOEL S. MARKS
  • Patent number: 8511531
    Abstract: In accordance with an embodiment of the present invention, a fastening device such as, for example, a forward acting stapler, is provided that includes a manually operable latch in order to store the built up potential energy that results from depressing the handle of the fastening device. Upon actuation of the latch, the plunger within the fastening device is released, thereby converting the stored energy of an internal compression spring into kinetic energy and ejecting a fastener (such as, for example, staples, nails or other types of fasteners) from the staple chamber to fasten an object.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: August 20, 2013
    Assignee: LMN Solutions, Inc.
    Inventor: David J. Popowich
  • Patent number: 8505798
    Abstract: A fastener driving device includes a fastener driver, a magazine for carrying a supply of fasteners to the fastener driver, a spring that moves the fastener driver through a drive stroke, and a motor configured to move the fastener driver through a return stroke. The motor is operable upon completion of the drive stroke, to move the fastener driver partially through the return stroke a predetermined amount to partially pre-compress the spring. The motor is further operable to fully compress the spring after receiving a signal for the drive stroke.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: August 13, 2013
    Assignee: Stanley Fastening Systems, L.P.
    Inventors: David Simonelli, Charles W. Hewitt, Keven E. Miller, Lok C. Lam, Tim Kimball, Andrew P. Leonczyk
  • Patent number: 8459519
    Abstract: An electromagnetic nail gun with a lever, comprising a handle for holding the nail gun and triggering the operation of the nail gun, an electromagnetic lever driving device for driving nails with variable speeds through the movement of the lever, wherein electromagnetism is used as driving force, a firing pin slideway for allowing the lever to move therein, and a muzzle magazine assembly for loading nails inside. The present invention uses the magnetism as driving force directly and then applies the lever and variable speed drive to launch nails. Therefore, the structure of the present invention is very simple, light, the manufacture cost is decreased drastically, vibration and noise when used are quite little, very convenient to operate, dispense with the air compressor, easy to carry around.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: June 11, 2013
    Assignee: Beijing Dafeng Technology Ltd.
    Inventors: Zezhou Feng, Yue Fan, Zhiwen Liao
  • 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: 8397969
    Abstract: An improved tool for installing an explosively driven fastener as well as an improved explosively driven fastener for use therewith are disclosed. The fastener includes a nail having a head with an explosive load attached thereto in a plastic cap that includes a buffer. The tool has a plurality of concentric cylinders and springs including a muzzle for receiving the fastener head and explosive load. A spring actuated firing pin ignites the load causing it to explode and drive the nail out of the tool. The explosion also automatically resets the tool. The tool and the fastener provide many advantages over existing explosively driven fasteners and the tools used to install them.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 19, 2013
    Assignee: Nitroset, LLC
    Inventors: Fernando Masas, Joe Lin
  • 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: 8356739
    Abstract: A stapler includes a main arm having two slots and two pivots, wherein two links have two respective first ends thereof are movably and pivotably connected to the two slots, and two respective second ends of the links are pivotably connected to the two pivots of the main arm. An operation arm having a strike plate is pivotably connected to a base and a magazine is located between the operation arm and the base. By pivoting the main arm downward, the two links are movable in the two slots and drive the operation arm to lower the strike plate to eject the staples in the magazine.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: January 22, 2013
    Inventor: Chien Chuan Huang
  • Patent number: 8348117
    Abstract: A stapler selectively uses enhanced leverage to break a glue bond of a staple to separate the staple from a rack of staples in the stapler. The staple does not press a working surface during this operating stage. The extra leverage stage occurs through a minority of total handle travel, preferably via a pivoting lever linked to the striker at one end and the opposite end traversing between inner spaced apart ribs underneath the handle. A remaining non-leveraged handle travel stage ejects a staple out from the stapler body against a working surface. A track supports staples from an underside of the top of the staples. The track includes an outward extending bottom support for at least one staple on the track to prevent rotation of a short rack of staples.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: January 8, 2013
    Assignee: Worktools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 8336752
    Abstract: There is provided a surgical instrument including a handle having an elongated tubular member extending distally from the handle and one or more end effectors mounted on the distal end of the elongate tubular member. A driver is movably mounted within the handle and elongate tubular member in order to operate the end effectors. The surgical instrument includes an energy storage mechanism for storing and providing energy to move the driver and thereby actuate the surgical instrument. Various actuation mechanisms are disclosed which are operable on the energy storage mechanism to control the rate of release of the energy stored in the energy storage mechanism.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: December 25, 2012
    Assignee: Covidien LP
    Inventor: Frank J. Viola
  • Patent number: 8336750
    Abstract: A stapler 100 is provided with a driver 5 provided at a forward end of the driver arm 4, as shown in FIG. 20A, driving a staple 30 out according to any predetermined clinching force, the driver 5 having projections 5b, 5b which contact portions of the staple 30 over the legs of the staple pushed against the front inner wall of the magazine 3 by a staple-pushing member 40. Accordingly, the clinching force is transferred to the legs through the projections 5b, 5b of the driver 5 so that the clinching force can be concentrated onto the legs. Furthermore, a staple-pushing member 40 pushes the staple 30, so that it is possible to prevent buckling from occurring in the legs.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: December 25, 2012
    Assignee: Max Co., Ltd
    Inventor: Jun Maemori
  • Patent number: 8322010
    Abstract: Fastening tool for driving a fastener such as a staple into a substrate a predetermined distance. The tool includes a housing and a driver reciprocally mounted in the housing and moveable with respect to the housing, the driver having a driving surface for engaging a fastener such as a staple. A magazine assembly is associated with the housing for positioning and aligning the fastener in the path of the driver so that when actuated, the driver strikes the fastener and forcibly ejects it from the magazine into the substrate to a predetermined extent so as to adjust or control the holding power of the fastener about the object.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 4, 2012
    Assignee: Acme Staple Company, Inc.
    Inventors: Onno Boswinkel, Robert Haynes
  • Publication number: 20120286015
    Abstract: A stapler comprises a securing member comprising a base and a securing plate perpendicular to the base, the base comprising a stapling slot; the securing plate comprising a receiving slot and a separating portion in the receiving slot; the receiving slot being divided to first and second receiving portions by the separating portion; a staple tray receives staples and comprising a pivoting shaft and a through hole aligned with the stapling slot; a pressing member comprising a protruding portion; a first resilient member attached to the pressing member, the first resilient component comprising a driving piece; wherein the pressing member is rotatably engaged with the securing plate through the pivot shaft; when the pressing member is rotated towards the securing member, the protruding portion extends through the separating portion and slidably positioned in the second receiving portion, and the driving piece drives one staple through the through hole.
    Type: Application
    Filed: December 16, 2011
    Publication date: November 15, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YUN-LUNG CHEN, CHUNG CHAI
  • Patent number: 8297485
    Abstract: A stapler has an anvil leg that supports an anvil plate in the front region, a staple magazine which can be swivelled to a limited degree about a transverse pin on a bearing block in the rear region of the anvil leg, and a driver leg which can be swivelled to a limited degree relative to the staple magazine and the anvil leg about the transverse pin. The driver leg supports a driver for guiding the staples through a gap at the front end of the staple magazine. The stapler has at least one guiding element which is arranged between the anvil plate and the bearing block. The guiding element longitudinally extends between the anvil leg and the staple magazine, is fixedly connected to the anvil leg, and is guided in a longitudinally movable manner within a guiding opening in a bottom wall of the staple magazine.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: October 30, 2012
    Assignee: Esselte Leitz GmbH & Co KG
    Inventors: Thomas Schneider, Ulrich Schneider, Kurt Leute
  • Patent number: 8240534
    Abstract: An object of the application is to improve power transmission to a movable element in a driving tool. The driving tool for driving a material to be driven into a workpiece includes rotationally driven first and second rotating elements, the movable element that can move in a direction that strikes the material to be driven, V-shaped first and second contact surfaces formed on the movable element, and a pressing member that applies a force to the movable element such that the first and second contact surfaces are pressed against the first and second rotating elements. The driving tool further includes a first motor for driving the first rotating element and a second motor for driving the second rotating element.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 14, 2012
    Assignee: Makita Corporation
    Inventor: Shinji Hirabayashi
  • Publication number: 20120132692
    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: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Applicant: WORKTOOLS, INC.
    Inventor: JOEL S. MARKS
  • Patent number: 8186552
    Abstract: A stapler has a supporting base, a magazine assembly, a trigger assembly, a leg-flatting device and a rail assembly. The magazine assembly and the trigger assembly are connected pivotally to the supporting base. The leg-flatting device is mounted on the supporting base and has a moving base and an anvil element. The moving base is connected operationally to the supporting base and has an anvil hole. The anvil element is mounted moveably in the anvil hole and has a functional segment and a non-functional segment. The rail assembly mounted on and protrudes from the bottom face of the supporting base and has at least one rail bracket protruding from the bottom face of the supporting base. Each one of the at least one rail bracket has a rail in which the non-functional segment of the anvil element is slidably mounted.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: May 29, 2012
    Assignee: SDI Corporation
    Inventor: Chi-Feng Huang
  • Patent number: 8186553
    Abstract: A fastener driving tool providing a prolonged durability and stabilized fastener driving operation. The tool includes a housing 2, a motor 31 disposed in the housing 2, a plunger 63 disposed in the housing and driven by the motor 31 for driving a nail 1A, a cable member 52 connected to the plunger 63 for pulling the plunger 63 from its bottom dead center where the nail is driven into a workpiece to a top dead center, and a drum 51 driven by the motor for winding the cable member thereover. A cable member is wound over the drum by a length greater than a linear distance between the bottom dead center and the top dead center. The cable member is flexed or deflected due to own weight when the plunger is at the bottom dead center.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: May 29, 2012
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Toshihito Sakaba, Hiroyuki Oda, Yoshihiro Nakano, Kenji Naganuma
  • Patent number: 8118205
    Abstract: In accordance with an embodiment of the present invention, a fastening device such as, for example, a forward acting stapler, is provided that includes a manually operable latch in order to store the built up potential energy that results from depressing the handle of the fastening device. Upon actuation of the latch, the plunger within the fastening device is released, thereby converting the stored energy of an internal compression spring into kinetic energy and ejecting a fastener (such as, for example, staples, nails or other types of fasteners) from the staple chamber to fasten an object.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: February 21, 2012
    Assignee: LMN Solutions, Inc.
    Inventor: David J. Popowich
  • 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