Spring-retracting Means Patents (Class 227/134)
  • Patent number: 10743598
    Abstract: A handheld tool attaches hair extensions. The tool has two hand members. The members are mechanically coupled to each other and moveable with respect to each other. The tool includes a fastening mechanism. The fastening mechanism is configured to crimp a pliable material to form a fastener that attaches the hair extension to the recipient's hair. The tool includes a shield mechanism, which is coupled to one hand member. The shield mechanism includes safety feet having first and second positions. The shield mechanism is in the first position when the apparatus is in a quiescent position, and the shield mechanism is in a second position when the fastening mechanism is crimping the fastener. In the second position, the feet are interposed between the recipient's scalp and a cornrow of the recipient's hair. The safety feet move from the first position to the second position as the fastener is being crimped.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: August 18, 2020
    Inventor: Jessica Harris
  • Patent number: 10500704
    Abstract: A stapler comprises a base (1), a staple pin track (2), a top blade assembly (3), a hinge (4) and an upper cover (5). Tail ends of the staple pin track, the top blade assembly and the upper cover are all hingedly connected to a tail end of the base. A first guide part is disposed on a side wall of the upper cover, and one end of the hinge is slidably connected to the first guide part. The first guide part is set in a structure that when the upper cover is pressed, one end of the hinge can move to the tail end of the upper cover and press downwards. A second guide part is disposed on the side wall of the base, and the other end of the hinge is slidably connected to the second guide part. The second guide part is set in a structure that when the upper cover is pressed, the other end of the hinge can move to a front end of the base, and when the upper cover is opened, the other end of the hinge is separated from the base.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 10, 2019
    Assignee: Ningbo Deli Binding Equipment Co., Ltd
    Inventors: Jiehui Yu, Rongjie Liu
  • Patent number: 9987734
    Abstract: A flat clinch assembly fits upon or within a base of a stapling device. The assembly preferably includes a slot with extended resiliently biased arms or toggles, where a rest position has the arms at or near a level of a working surface. An ejecting staple deflects and energizes the arms to cause the arms to rotate and create a clearance recess whereby points of the staple legs slide inward along the anvil. A restorative bias acting on the arms causes the arms to rebound to a rest position and to bend the legs upward. The legs thereby are normally pressed flat against the back sheet of a paper stack at the working surface. The arms or toggles are lightweight whereby the inertia of a fast-moving staple moves the arms or toggles. The toggle may include an upward facing staple leg guide channel.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 5, 2018
    Assignee: WORKTOOLS, INC.
    Inventors: Joel S. Marks, Chih Wei J. Wu
  • Patent number: 9918499
    Abstract: An adjustable support brassiere comprises traditional bra elements—a bra band with closure; left and right breast cups; and respective shoulder straps. Adjustability may comprise left and right inner support cups having inner ends pivotally attached, respectively, to the left and right breast cups, and a respective support strap having a bottom end attached at a distal (outer) end of each inner support cup, with a top end of each support strap fixedly secured to a clamp member. Each of the left and right clamp members may be releasably secured to a infinite number of positions of the shoulder strap, to cause individual lifting and reconfiguring of the left and right inner support cups to produce a desired amount of lifting to each of the woman's breasts. Adjustments may be made by a woman throughout the day to alter her appearance as desired.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 20, 2018
    Inventor: Brandon Solotoff
  • Patent number: 9592597
    Abstract: A flat clinch assembly fits upon or within a base of a stapling device. The assembly preferably includes a slot with extended resiliently biased arms or toggles, where a rest position has the arms at or near a level of a working surface. An ejecting staple deflects and energizes the arms to cause the arms to rotate and create a clearance recess whereby points of the staple legs slide inward along the anvil. A restorative bias acting on the arms causes the arms to rebound to a rest position and to bend the legs upward. The legs thereby are normally pressed flat against the back sheet of a paper stack at the working surface. The arms or toggles are lightweight whereby the inertia of a fast moving staple moves the arms or toggles.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: March 14, 2017
    Assignee: WORKTOOLS, INC.
    Inventor: Joel S. Marks
  • 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: 8939230
    Abstract: A tool has a mechanism for absorbing energy transmitted to a hand grip, comprising a support body, a handle, an elastic return member and an interchangeable head as a base unit which is capable of accommodating additional fittings depending on the specific application. A lower part of the cylindrical body has a shouldered part having a diameter larger than its upper part so as to allow positioning and support of a ring associated with the handle. The handle has an internal shouldered part with an upper face constituting the support for the elastic return member. The interchangeable striking head comprises a part centered in the ring and a neck that fits inside an internal bore of the body. The striking head rests directly on the body in order to transmit the entire striking force to the body, and the handle extends rearwardly as the hand grip.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: January 27, 2015
    Assignee: Etablissements Boehm et Cie
    Inventors: Jean-Louis Boehm, Arnaud Drevon
  • 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: 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
  • Patent number: 8740033
    Abstract: A nailing gun includes a swing arm having a first end pivoted to a frame, and a second end movable between a first position proximate to a flywheel to drive a hammer rod to hit a nail, and a second position distal from the flywheel. A spring plate has a spring end portion resiliently supporting the second end of the swing arm. The stop member limits the spring end portion and the second end of the swing arm from moving relative to the frame. When a safety member is subjected to an external pressure, the stop member permits the second end of the swing arm to move together with the spring end portion to the first position. The spring end portion can stably retain the second end of the swing arm at the second position in case of no external pressure.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: June 3, 2014
    Assignee: Basso Industry Corp.
    Inventors: Wen-Liang Li, Chia-Yu Chien
  • Patent number: 8720765
    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: Grant
    Filed: April 17, 2008
    Date of Patent: May 13, 2014
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Hiroyuki Oda, Yoshihiro Nakano, Takashi Ueda
  • 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
  • Publication number: 20130299548
    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: Application
    Filed: July 22, 2013
    Publication date: November 14, 2013
    Inventors: Lee M. Brendel, Paul G. Gross, Larry E. Gregory
  • 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: 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: 20130233903
    Abstract: Compression return springs can be mounted on rails between the driver and an impact absorber. The springs include a plurality of wires twisted together to form a multi-stranded twisted wire member, which forms the coils of the spring. The springs can have an inner diameter that resists movement of the coils along the rails when the spring is at its free length, but has a mounted inner diameter that freely allows such movement. The coil-to-coil pitch of the spring can vary along its length. A motor initially rotates the flywheel without engaging the driver. The driver then contacts the rotating flywheel to propel the driver, which compresses the return springs against the impact absorbers as the driver travels from the returned position to the extended position.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 12, 2013
    Inventors: Lee Michael BRENDEL, Paul G. GROSS
  • Patent number: 8485409
    Abstract: A stapler includes a base and a stapler remover. The base defines a receiving room. The receiving room receives backup staples. The stapler remover is rotatably mounted on the base. The staple remover includes a tilting portion, which is located out of the base. The tilting portion is configured to be arranged in different positions with respect to the base.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 16, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Yun-Lung Chen
  • 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: 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: 8353435
    Abstract: A fastening device that drives one or more fasteners into a workpiece generally includes a tool housing and a multistage solenoid contained in the tool housing. The multistage solenoid includes an armature member that travels through at least a first stage, a second stage, and a sense coil disposed therebetween. A driver blade assembly includes a blade member connected to the armature member. The driver blade assembly is operable between an extended condition and a retracted condition. A control module determines a position of the armature member relative to at least one of the first stage and the second stage based on a signal from the sense coil. The control module adjusts a force imparted on the armature by at least one of the first stage, the second stage, and a combination thereof based on the signal from the sense coil.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: January 15, 2013
    Assignee: Black & Decker Inc.
    Inventors: Paul G. Gross, Robert Alan Usselman, Andrew E. Seman, Jr.
  • 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: 8302833
    Abstract: A power tool that includes a structure; a flywheel coupled to the structure; a driver that is translatable along a driver axis; and a follower assembly having an actuator and an activation arm assembly. The actuator is coupled to the activation arm assembly. The activation arm assembly is coupled to the structure and includes a pinch roller. Actuation of the actuator causes the pinch roller to translate toward and engage the driver to initiate driving engagement between the driver and the flywheel.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: November 6, 2012
    Assignee: Black & Decker Inc.
    Inventors: Paul G Gross, James J Kenney, Larry E Gregory, Lee M Brendel
  • Patent number: 8281971
    Abstract: A labor-saving stapler of the present invention includes a base, a press arm, a transmission arm, a connection arm, a magazine, a staple pusher, a moving mechanism, a buckling mechanism and a switching mechanism. The magazine is slidably disposed between the connection arm and the base. The moving means moves the magazine outwardly when the switching mechanism is activated. As such, the magazine can be opened by operating the switching mechanism. When the switching mechanism includes a button or the same, users can open the magazine easily with only one hand.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: October 9, 2012
    Assignee: Apex Mfg. Co., Ltd.
    Inventors: Rong-Yu Wang, Jing-Li Wang
  • Patent number: 8245896
    Abstract: A hand-operated drive-in power tool for fastening elements is disclosed. The tool has a drive arrangement for a drive-in ram displaceably arranged in a guide, which has at least one drive element for the drive-in ram made at least partially of an elastomer that is tensible via a tensioning device. To improve the drive-in power tool, a heating device for the at least one elastomer drive element is provided.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: August 21, 2012
    Assignee: Hilti Aktiengesellschaft
    Inventors: Hans Gschwend, Robert Spasov
  • 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
  • Publication number: 20120111918
    Abstract: A fastening device that drives one or more fasteners into a workpiece generally includes a tool housing and a multistage solenoid contained in the tool housing. The multistage solenoid includes an armature member that travels through at least a first stage, a second stage, and a sense coil disposed therebetween. A driver blade assembly includes a blade member connected to the armature member. The driver blade assembly is operable between an extended condition and a retracted condition. A control module determines a position of the armature member relative to at least one of the first stage and the second stage based on a signal from the sense coil. The trigger assembly is connected to the control module and partially contained within the housing. The trigger assembly is operable to activate a driver sequence that moves the driver blade between the retracted condition and the extended condition.
    Type: Application
    Filed: August 6, 2009
    Publication date: May 10, 2012
    Applicant: Black & Decker Inc.
    Inventors: Paul G. Gross, Robert Alan Usselman, Andrew E. Seman, JR.
  • Patent number: 8162073
    Abstract: A device for impacting a fastener in one embodiment includes a drive mechanism configured to impact a fastener, a lever arm pivotable between a first position and a second position, and a motor including a plurality of permanent magnets mounted on a rotatable housing, the motor mounted on the lever arm such that when the lever arm is in the first position, the rotatable motor housing is isolated from the drive mechanism and when the lever arm is in the second position, the rotatable motor housing is positioned to transfer rotational energy to the drive mechanism.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: April 24, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Harald Krondorfer, John DeCicco, Eric Hlinka
  • Patent number: 8123099
    Abstract: A power tool with a flywheel, an activation arm, a driver, a cam and a clutch. The activation arm can have a first arm, a second arm, which can be pivotally mounted to the first arm, and a roller that can be coupled to the second arm. The driver can be disposed between the roller and the flywheel. The cam can be moveable in a predetermined direction for causing the activation arm to rotate about a pivot to drive the roller against the driver so that the driver frictionally engages the flywheel. The clutch can cooperate with the cam to inhibit the cam from moving in a direction opposite the predetermined direction in response to a reaction force that is applied by the driver onto the activation arm.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 28, 2012
    Assignee: Black & Decker Inc.
    Inventors: James J. Kenney, Alan Berry, Craig A. Schell, Paul Gross
  • Publication number: 20120012635
    Abstract: Staplers and methods of stapling are described. The stapler includes a topsail configured to support a plurality of staples, the staples being slidably moveable on the topsail; a blade configured to drive an end staple of the plurality of staples out of the stapler and into an object to staple; a pusher configured to urge the plurality of staples on the topsail in a direction toward the blade; a finger configured to move between at least two positions by movement of the blade, a first position where the finger does not substantially counter action of the pusher, and a second position where the finger is engaged with the plurality of staples to substantially counter action of the pusher on the staples to keep the plurality of staples excluding the end staple away from the blade.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 19, 2012
    Inventors: Barry Jaffe, Augustin Ruiz
  • Patent number: 8061575
    Abstract: The present invention provides a stapler with a novel leaf spring actuation mechanism. According to the teaching of the present invention, the stapler comprises a striking plate for dispensing a staple from a staple magazine, a leaf spring engaged with the striking plate for driving the striking plate, and an actuation bar for lifting the leaf spring from a first position to a second position whereby lifting the striking plate from an initial position to a release position in which the leaf spring is released from the actuation bar to drive the striking plate towards the initial position. Preferably, a pair of lugs on the actuation bar pushes up a pair of tabs on the leaf spring when an L-shaped front end of the actuation bar moves upward along a ramp when an external force is applied to the actuation bar during the stapling operation.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: November 22, 2011
    Assignee: Quad III, Inc.
    Inventors: Michael P. Joyce, Brent Lucas
  • Patent number: 8052022
    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: December 16, 2009
    Date of Patent: November 8, 2011
    Assignee: Worktools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 8052023
    Abstract: A light weight hand-operated stapler which comprises a pressing cap, a plastic head, a metal drive plate, a base and a plastic magazine which is connected to the base via a hanger and connected to the plastic head via a pin, a metal guide head disposed at a front end of the plastic magazine and substantially covering the front wall of the plastic magazine, a first elastic mechanism for pushing the staples down the plastic magazine to reload the stapler, a second elastic member disposed between the pressing cap and the plastic head for pushing the pressing cap up to its original position after stapling, and a third elastic member disposed between the base and the plastic magazine for pushing the plastic magazine up to its original position after stapling.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: November 8, 2011
    Assignee: Cosimex (H.K.) Limited
    Inventor: Victor Co
  • Patent number: 8038043
    Abstract: A heavy duty stapler comprises a base member; a magazine member, which has a first end pivotally connected to the base member and a second end opposite to the first end, including a firing device provided at the second end thereof, with a firing portion formed from an end of the firing device; a lever arm, which has first and second end, including first and second pivotal sections defined at the first end thereof and a pressing section defined at the second end thereof opposite to the first and second pivotal sections, with the first pivotal section pivotally connected to the base member; a linkage member having a first end pivotally connected to the second pivotal section of the lever arm and a second end opposite to the first end thereof; and a driven member including a first pivotal portion pivotally connected to the base member, a second pivotal portion pivotally connected to the second end of the linkage member and a driven portion.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: October 18, 2011
    Assignee: Apex Mfg. Co., Ltd.
    Inventor: Ching-Li Wang
  • Patent number: 8020740
    Abstract: An effort-saving stapler includes a first activating mechanism including a first connecting section and an abutting ridge, and a second activating mechanism including a ram and an arm including a second connecting section pivotally connecting to the first connecting section at a fulcrum point “A”. The stapler further includes a pushing mechanism including a third connecting section, an anvil, and an abutting ridge contacting with the abutting edge of the first activating mechanism, and with these two abutting ridges defining a contact point “B”. The stapler further includes a magazine including a fourth connecting section pivotally connected to the third connecting section at a second fulcrum point “C”. The fulcrum point “A”, contact point “B” and fulcrum point “C” are in a straight line when bending legs of the staples for closing the staples in an effort-saving way.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 20, 2011
    Assignee: Apex Mfg. Co., Ltd.
    Inventor: Ching-Li Wang
  • Patent number: 7997467
    Abstract: A driving tool that has a driver support base. The driver support base includes a transmitting portion having a V-shape in cross section. The driver support base can be pressed by a press member to cause the transmitting portion to wedge between a pair of left and right drive wheels, so that a friction force is produced to move the driver support base.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 16, 2011
    Assignee: Makita Corporation
    Inventors: Shinji Hirabayashi, Jiro Oda
  • Patent number: 7992756
    Abstract: A hand-held fastener driver for fastening elements, having a driving tappet that is movably mounted in a tappet guide and that can be driven using at least one drive spring element is disclosed, having a tensioner for the drive spring element, and having a locking mechanism. In a locked position of the locking mechanism, the drive spring element can be locked in its tensioned position, whereby the tensioner has a tensioning element that is provided with a profile, and said tensioning element can be axially moved along a longitudinal axis of motion using a rotatable counter-element that is engaged with the profile and that can be driven by a motor.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: August 9, 2011
    Assignee: Hilti Aktiengesellschaft
    Inventors: Karl Franz, Robert Spasov
  • Patent number: 7975893
    Abstract: A tool with a driver, a motor, a structure to which the motor is coupled and a return cord assembly. The driver that is translatable along an axis between an extended position and a retracted position. The motor is configured to translate the driver from the returned position to the extended position. The return cord assembly is coupled to the driver and the structure and includes a spring and an elastomeric return cord that are employed to return the driver from the extended position to the retracted position.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: July 12, 2011
    Assignee: Black & Decker Inc.
    Inventors: Alan Berry, Paul Gross, Charles L. Bradenbaugh, IV, James J. Kenney
  • Patent number: 7975892
    Abstract: A magazine front end retaining structure for hammer tacker includes a case body head cap connected to a front end of a case body of a tacker case of the hammer tacker; a retaining push member pivotally mounted to a front opening of the case body head cap; an outer staple channel head cap connected to a front end of an outer staple channel of a magazine, which and a magazine cover are coaxially pivotally connected at respective rear end to a rear end of the case body, and a catch section located at a front end of the outer staple channel head cap for the retaining push member to hook thereto, so that a front end of the magazine is held to the tacker case. To release the front end of the magazine from the tacker case for loading staples, simply pushes the retaining push member with one hand.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: July 12, 2011
    Assignee: Great-Elite Industrial Co., Ltd.
    Inventor: Larry Yeh
  • Patent number: 7963429
    Abstract: The mid-zone pressing tool has a base and a pressing assembly, which are pivotally connected at the rear by a transverse shaft. A pair of cantilevers extends forward from each side of an uppermost rear portion of the base. A pair of arms is connected on the distal ends by a common handle. A first coupling connects a middle portion of each arm to the pressing assembly by an axle, cam or link. A second coupling connects the proximal ends of each arm to the cantilever by an axle, cam or link. Pushing the handle down pivots the arms, engages the couplings, and transmits a concentrated downward force to the front of the pressing assembly. The cantilevers allow a range of coupling placements, including near the middle of the pressing tool. The couplings are optionally releasable.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: June 21, 2011
    Inventor: William Carlton Zolentroff
  • Patent number: 7942298
    Abstract: A stapler includes a base member, a magazine for receiving a plurality of staples, and a drive member including a driver blade movable relative to the magazine for ejecting staples from the magazine one at a time. The stapler further includes an input member pivotally coupled to the drive member. The input member is configured to receive an input force and transmit the input force to the drive member for driving movement of the drive member relative to the magazine. One of the drive member and the input member pivots about a pivot axis that moves relative to the base member along an arcuate path.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: May 17, 2011
    Assignee: ACCO Brands USA LLC
    Inventor: Balaji Kandasamy
  • Patent number: 7913890
    Abstract: A device that generally includes a multistage solenoid having at least a first stage, a second stage and an armature member that travels therebetween. The device also includes a control module connected to the multistage solenoid. The control module detects a position of the armature member relative to at least one of the first stage, the second stage and a combination thereof. The control module adjusts a magnetic field of the at least one of the first stage, the second stage and the combination thereof based on the position of the plunger armature relative thereto.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: March 29, 2011
    Assignee: Black & Decker Inc.
    Inventors: Paul G. Gross, Nathan J. Cruise
  • Patent number: 7909218
    Abstract: This invention provides a safety apparatus for a spring powered stapler, the safety apparatus comprising a lock plate holding up a power spring for storing energy when in a first position, and releasing the power spring when the lock plate being moved substantially horizontally to a second position, a safety pin substantially vertically movable between a third and fourth position, the safety pin being in the third position when the stapler is not pressed against an object, and the safety pin being in the fourth position when the stapler is pressed against an object, wherein when in the third position, the safety pin stops the lock plate from being moved to the second position, and when in the fourth position, the safety pin makes room for the lock plate to be moved to the second position.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 22, 2011
    Inventor: Peigen Jiang
  • Patent number: 7866522
    Abstract: Disclosed in a stapling device that is sound, safe, convenient and not easy to get lost and that is applicable to staples of multiple specifications. A casing has a rear end to which an adjustor is set. The adjustor has a fitting portion that is comprised of two or more than two fitting blocks each having an engaging face that is spaced from a central axis of the adjustor by a different distance. A rear end of the casing is provided with a depress-to-fix member corresponding to the adjustor. The depress-to-fix member forms a fitting slot. This arrangement allows selective change engagement between the fitting slot and different fitting blocks thereby changing the set position of a rear guide plate and realizing change of gap size of a staple outlet opening for being applicable to staples of different specifications.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 11, 2011
    Assignee: Jann Yei Industry Co., Ltd.
    Inventors: Ton-Yi Chen, Yuan-Shun Lee
  • Patent number: 7832610
    Abstract: A fastener driving tool includes a housing, a motor, a plunger, a spring, a power transmission mechanism, and an impact buffering portion. The motor is provided in the housing. The plunger is provided in the housing and impacts a fastener in one direction. The spring urges the plunger in the one direction. The power transmission mechanism connects the motor and the plunger for moving the plunger in another direction opposite to the one direction against an urging force of the spring. The impact buffering portion is provided in one of the power transmission mechanism and the plunger.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: November 16, 2010
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Toshihito Sakaba, Hiroyuki Oda, Yoshihiro Nakano
  • Patent number: 7828184
    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: February 2, 2009
    Date of Patent: November 9, 2010
    Assignee: WorkTools, Inc.
    Inventor: Joel S. Marks
  • Patent number: 7823759
    Abstract: This invention provides a spring powered stapler comprising a power spring having a front and a rear end, the rear end of the power spring being limited from moving frontward, a middle section between the front and rear end of the power spring being bent down while the front and rear end of the power spring maintaining in upper positions for storing energy in the power spring, and the front end of the power spring moving rearward as a result of the middle section of the power spring being bent down, and a lock plate, while not moving, holding up the front end of the power spring before the rearward movement of the front end of the power spring exceeding a predetermined distance and releasing the front end of the power spring after the rearward movement of the front end of the power spring exceeding the predetermined distance.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: November 2, 2010
    Inventor: Peigen Jiang
  • 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
  • Publication number: 20100187281
    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: March 30, 2010
    Publication date: July 29, 2010
    Applicant: WORKTOOLS, INC.
    Inventor: Joel S. Marks
  • Patent number: 7757923
    Abstract: A stapler has a supporting base, a magazine assembly, a trigger assembly and a leg-flatting device. The trigger assembly has a trigger lever and a pushing element. The pushing element is mounted pivotally on the trigger lever with a pivot and has two pushing arms extending toward the supporting base. The leg-flatting device is mounted on the supporting base and has a sliding base, a moving base and an anvil element. The sliding base is slidably mounted on the supporting base and has a pushed segment corresponding to and selectively pushed by the pushing arms. The moving base is selectively blocked by the sliding base to keep the moving base from moving downwardly before the sliding base sliding relative to the supporting base and has an elongated hole. The anvil element is mounted in the elongated hole in the moving base.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: July 20, 2010
    Assignee: SDI Corporation
    Inventors: Chi-Feng Huang, I-Hui Liu, Chun-Hsien Chiang
  • Patent number: 7748589
    Abstract: A desktop stapler uses a spring to store energy to install staples by impact blow. The force required to fasten papers together is reduced. A very compact mechanism is used, including a dual coil power spring with a nested lever. A multi-function base provides a sloped front all the way to down to a desk top surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk, horizontal or vertical resting positions, and integrated soft grip under-surface. The base surrounds the rear of the stapler body to provide a smooth exterior so that the device is natural to use both horizontally and vertically. A simple re-set spring provides a smooth re-set action as the handle is raised. A staple track includes enlargement features to fit a larger staple pusher spring.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: July 6, 2010
    Assignee: WorkTools, Inc.
    Inventor: Joel Marks