Spring Patents (Class 227/132)
  • Patent number: 11433522
    Abstract: A nailing apparatus, comprising: a support mechanism, and an energy storage mechanism and an energy storage driving mechanism both provided in the support mechanism, wherein the energy storage driving mechanism comprises a power component, an eccentric component connected to the power component and a linear movement component connected to the eccentric component, and the power component comprises a driving electric motor and a step-down gear installed on an output shaft of the driving electric motor; a nailing driving mechanism, wherein the energy storage driving mechanism drives the nailing driving mechanism to hammer nail to drive the nail into a base material.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: September 6, 2022
    Assignee: BEIJING DAFENG TECHNOLOGY LTD.
    Inventors: Zezhou Feng, Yue Fan, Zhiwen Liao
  • Patent number: 11420313
    Abstract: A staple gun includes a housing, a striking member, a driving mechanism and a locking mechanism. The housing includes a staple outlet. The striking member is disposed on the housing. The driving mechanism includes a pressure bar which is rotatably assembled with the housing. The locking mechanism includes a locking member. The locking member is assembled with the housing and is rotatable about an axial direction to be in a locking position or a releasing position. The locking member has a stopping bump formed radially.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: August 23, 2022
    Assignee: APEX MFG. CO., LTD.
    Inventor: Jing-Li Wang
  • Patent number: 11396095
    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: February 3, 2021
    Date of Patent: July 26, 2022
    Assignee: Illinois Tool Works Inc.
    Inventors: Stephen P. Moore, Murray Z. Weinger, Daniel J. Birk, Hanxin Zhao, Ricardo Segura, Ryan L. Francis
  • Patent number: 11383366
    Abstract: A fastener driving device includes a fastener and at least one gas spring. Additionally, the fastener driving device includes a drive mechanism, the drive mechanism being capable of selectively engaging and disengaging the at least one gas spring, the at least one gas spring capable of moving to an energized position upon being engaged by the drive mechanism. Additionally, the device includes an anvil, wherein the drive mechanism includes a first lifting mechanism and a second lifting mechanism, wherein the first lifting mechanism actuates the at least one gas spring for a portion of an operation cycle, and the second lifting mechanism thereafter actuates the at least one gas spring for a subsequent portion of the operation cycle before the drive mechanism ceases applying a force on the at least one gas spring and the at least one gas spring releases a portion of its potential energy and accelerates the anvil to drive a fastener.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 12, 2022
    Assignee: TRICORD SOLUTIONS, INC.
    Inventors: Christopher Pedicini, John Witzigreuter
  • Patent number: 11305410
    Abstract: A staple gun is adapted for driving out a frontmost staple of a staple strip and a frontmost press piece of a press piece strip simultaneously. The staple gun includes a casing unit adapted for receiving the staple strip and the press piece strip, a striker unit adapted for striking the frontmost staple and the frontmost press piece out of the casing unit through an exit opening, and a loading unit including a staple holder, a press piece pusher that is adapted to abut against a rear end of the press piece strip, and a press piece spring that is connected between the press piece pusher and the staple holder for maintaining contact between the press piece strip and a front portion of the casing unit.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: April 19, 2022
    Assignee: PAO SHEN ENTERPRISES CO., LTD.
    Inventors: Sheng-Lung Yeh, Chun-Man Lai
  • Patent number: 11297486
    Abstract: A device may include a processor configured to collect historical location data for a user equipment (UE) device associated with a user and determine a movement pattern for the user based on the collected historical location data. The processor may be further configured to obtain current location data for the UE device over a time period; determine a mobility score for the user for the time period based on the determined movement pattern and the obtained current location data, wherein the mobility score is associated with the user's movements during the time period with respect to the determined movement pattern for the user; and provide the determined mobility score for the user to another device configured to adjust one or more parameters of a radio access network (RAN) associated with the UE device based on the determined mobility score.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: April 5, 2022
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Lun Yin, Le Su, Dandan Wang, Wenyuan Lu, Krishna Pichumani Iyer, Khurram Abbas, Steven F. Rice
  • Patent number: 11291450
    Abstract: A method is used to manufacture an anvil of a surgical circular stapler. The anvil includes a head and a shank extending proximally from the head. The method includes forming the head of a surgical circular stapler using a metal injection molding process. The method also includes forming an annular array of staple forming pockets in the head. The method also includes machining the shank of the surgical circular stapler. The method also includes coupling together the head and the shank of the surgical circular stapler that were separately manufactured.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: April 5, 2022
    Assignee: Cilag GmbH International
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Amit Gupta, Sambit Kumar Acharya
  • Patent number: 11279013
    Abstract: A driver rebound plate to prevent a fastener driver from rebounding into the drive path and striking additional fasteners at the end of a drive cycle. The driver rebound plate is formed from an elongated body having a mounting portion at a first end and a bearing portion at a second end. A retaining portion is disposed between the mounting portion and the bearing portion and is adjacent to the mounting portion. An impact portion designed to receive the impact of a driver during a return stroke is disposed between the retaining portion and the bearing portion. The impact portion is bent at an oblique angle with respect to the drive axis.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: March 22, 2022
    Assignee: Black & Decker, Inc.
    Inventors: Erin Elizabeth Jaskot, Stuart E. Garber, Dustin L. DeMarr
  • Patent number: 11083451
    Abstract: In one embodiment, a medical device includes a first arm portion, a second arm portion and a base portion. The first arm portion has an inner surface and an outer surface. The second arm portion has a tissue piercing portion at a distal end, an inner surface and an outer surface. The base portion extends between the first arm portion and the second arm portion. A distance between the inner surface of the first arm portion and the inner surface of the second arm portion defines a depth of penetration into a tissue of a patient.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: August 10, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Isaac Ostrovsky, Jozef Slanda
  • Patent number: 11065751
    Abstract: A labor-saving stapler is provided, including: a housing, having a nail outlet; a striker, disposed within the housing and movable between a preset position away from the nail outlet and a nailing position near the nail outlet; an energy-accumulating mechanism, including a connection portion connected to the housing and a connection end cooperating with the striker; an operable mechanism, movably connected to the housing and having a depression portion abutable against the energy-accumulating mechanism; a limitation mechanism, connected to the housing, the striker being positionably restricted by the limitation mechanism; wherein when the striker is in a preset position and positionably restricted by the limitation mechanism, the energy-accumulating mechanism is depressible by the depression portion to be in a energy-accumulating state, and when the striker is free of restriction by the limitation mechanism, the energy-accumulating mechanism actuates the striker to move toward the nailing position.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: July 20, 2021
    Assignee: APEX MFG. CO., LTD.
    Inventor: Jing-Li Wang
  • Patent number: 10946505
    Abstract: A fastener driving tool includes a housing, a striking member, an energy storing unit and a handle unit. The energy storing unit has a torsion spring which has weighted and driving legs extending from two ends of a coil. The driving leg is biased against and engaged with the weighted leg to be preloaded with a downward potential energy that urges a downward movement of the torsion spring and the striking member. The handle unit includes a handle and an anchoring member removably engaged with the striking member. When the handle is pivotally moved from a ready position to a striking position, the weighted leg is moved downwardly and the anchoring member and the striking member are moved upwardly to gradually increase a loading of the torsion spring for the striking member.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Pao Shen Enterprises Co., Ltd.
    Inventor: Sheng-Lung Yeh
  • Patent number: 10888984
    Abstract: A fastener driving tool includes a striking member mounted in a housing for reciprocal movement relative to a fastener striking opening, a leaf spring engaging with the striking member at an end, and having a flexible section anchored by an anchoring unit, and a press handle pivotably connected with the anchoring unit, and having an elongated guide slot in which a pivot axle is movably engaged. The press handle is pivotable from a ready position, where the anchoring unit anchors the flexible section, through an intermediate position, where the anchoring unit is moved upwardly and rearwardly to cause resilient deflection of the leaf spring and load the leaf spring with an accumulated biasing energy, to a striking position, where the anchoring unit abuts against and is counteracted upon the pivot axle or a stop peg to be disengaged from the leaf spring so as to release the biasing energy.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: January 12, 2021
    Assignee: Pao Shen Enterprises Co., Ltd.
    Inventors: Chun-Man Lai, Sheng-Lung Yeh
  • Patent number: 10882172
    Abstract: A powered hand-held fastening tool includes a housing defining a handle, a frame, a motor-driven flywheel journaled to the frame, and an elongated driver that is selectively coupled to the flywheel to drive a fastener into a workpiece. The flywheel and driver have complementary sloped surfaces that mesh with each other to transmit energy from the flywheel to the driver to accelerate the driver along the driver axis. A follower assembly for selectively coupling the driver to the flywheel includes a solenoid actuator.
    Type: Grant
    Filed: October 20, 2018
    Date of Patent: January 5, 2021
    Assignee: Black & Decker, Inc.
    Inventors: Ashok S. Baskar, Charles L. Bradenbaugh, IV, Craig A. Schell, James J. Kenney, Paul G. Gross
  • Patent number: 10843319
    Abstract: A positioning structure of stapler handle includes a buckle assembly and a buckle member. The buckle assembly includes a first coupling portion and a pushing unit connected together. The buckle member includes a first second coupling portion and a pushed unit connected together. The first coupling portion is adapted for being coupled with the second coupling portion. The pushed unit is located at the movement path of the buckle assembly.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: November 24, 2020
    Assignee: APEX MFG. CO., LTD.
    Inventors: Chia-Tse Chen, Pei-Hung Cheng
  • Patent number: 10786891
    Abstract: A driver has: a wheel that is rotationally driven by an electric motor; pins provided to the wheel and arranged along a circumferential direction of the wheel; a piston reciprocably housed in a cylinder; a driver blade that integrally reciprocates with the piston; racks provided to the driver blade along an axial direction of the driver blade; and a controller configured to control a drive of the electric motor by PWM. The controller changes a duty ratio of the switching element provided on a power supply line for the electric motor in response to a change in remaining battery level as one of situations that affects a moving speed of the piston from the bottom dead point side to the top dead point side.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 29, 2020
    Assignee: KOKI HOLDING CO., LTD.
    Inventors: Yuta Noguchi, Hironori Mashiko, Takashi Ueda
  • 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