Locked Blade Patents (Class 30/161)
  • Patent number: 10309754
    Abstract: Designs and methods are provided for a retractable broadhead blade. In one exemplary embodiment the broadhead blade is configured to be received in a slot in a broadhead body, and moveable between a retracted or in-flight position, and a deployed or target penetrating position. The broadhead blade includes a front end that faces substantially forward when the blade is in the retracted position, a distal end opposite the front end, an outward facing sharpened leading edge between the front end of the blade and the distal end, and an inward facing trailing edge opposite the leading edge. The blade further includes a spring member with a contact surface configured to bear against a blade locating portion of a broadhead body when the blade is in the retracted, or in-flight position.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 4, 2019
    Inventors: Carl Pugliese, Ronald E. Way
  • Patent number: 10288392
    Abstract: A broadhead having a ferrule, an elastic collar, and a plurality of blades pivotally coupled to the ferrule. A first biasing force exerted by the collar on each blade retains the blade in a retracted position, and a second biasing force exerted by the collar on each blade retains the blade in a first deployed position.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: May 14, 2019
    Assignee: FeraDyne Outdoors, LLC
    Inventor: Matthew Peter Haas
  • Patent number: 10281250
    Abstract: A broadhead containing independent pivotable and retractable cutting blades configured for selective locking in a non-deployed and deployed position. The broadhead further contains a non-rotating blade configured for reciprocating movement in order to selectively lock the pivoting blades in their non-deployed and deployed positions. Impact of the broadhead with a target will cause the pivoting blades to transition from the non-deployed position to the deployed position and thereby create a larger cutting diameter.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: May 7, 2019
    Assignee: Barnett Outdoors, LLC
    Inventors: Mark Beck, Dale Perry
  • Patent number: 10220527
    Abstract: A switchblade includes a casing that defines a cavity and a blade having a cutting edge. The blade has a retracted position in which the cutting edge is inside the cavity and a deployed position in which the cutting edge is outside of the cavity. A spring is operably connected to the blade to bias the blade to the deployed position. An actuator extends through at least a portion of the casing and has a hold position that engages with the blade to prevent movement of the blade with respect to the casing and a release position that permits movement of the blade with respect to the casing. A safety is operably connected to the actuator and has a lock position that prevents operation of the actuator and an unlock position that permits operation of the actuator.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 5, 2019
    Assignee: Microtech Knives
    Inventor: Anthony Marfione
  • Patent number: 10179349
    Abstract: The present invention provides a cleaning tool comprising a tool head device and a handle portion, the tool head device comprises a cutting edge, and the handle portion is rotatably connected to the tool head device; the cutting edge is exposed outside of the handle portion in the use state; and the cutting edge is entirely or partially covered by the handle portion in the non-use state.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: January 15, 2019
    Assignees: Hangzhou Great Star Industrial Co., Ltd., Hangzhou Great Star Tools Co., Ltd.
    Inventor: Weiyi Wang
  • Patent number: 10144139
    Abstract: A utility knife including a handle, a blade, a first blade holder, and a spare blade holder. The spare blade holder is pivotal with respect to the handle between an open position where the recess is exposed to allow a spare blade to be removed from the spare blade holder and a closed position where the recess is within a slot of the handle to inhibit removal of the spare blade from the spare blade holder. The spare blade holder further including a cam surface and the cam surface of the spare blade holder engages a cam surface of the handle when the spare blade holder is in the closed position to urge the spare blade holder in a direction from a first longitudinal side of the handle toward a second longitudinal side of the handle to allow the first blade holder to pivot between extended and folded positions.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 4, 2018
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Grant T. Squiers, Steven W. Hyma, Christopher S. Hoppe, Michael Stearns, Joseph M. DeBaker
  • Patent number: 10064324
    Abstract: A disc-opener implement for use with an agricultural implement includes a disc configured to form a trench in a surface of a field and a scraper adjacent to the disc. The disc-opener implement also includes a knife that is configured to form a furrow next to or into a sidewall of the trench, wherein the knife comprises a leading edge, and a portion of the leading edge is aligned with a trailing edge of the scraper along a lateral axis of the disc-opener implement.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 4, 2018
    Inventors: Joel John Octave Gervais, Guillaume Cloutier Boily, Martin J. Roberge
  • Patent number: 10035271
    Abstract: The present invention is to provide a folding knife with a locking function comprising a handle, a blade pivotally connected to an end of handle through a pivot pin, a poke member and a first elastic component; wherein blade includes a locking pin protruded adjacent to pivot pin; e poke member includes a poke part at an end thereof and exposed out of handle. The other end of poke member is pivotally connected between pivot pin and the other end of handle. Poke member includes a locking slot recessed adjacent to a middle section thereof and facing pivot pin. first elastic component includes an end abutted against the middle section, and the other end fixed between poke member and the other end of handle, for applying an elastic force on poke member, so as to ensure locking pin to be engaged into locking slot, when blade is received inside handle.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 31, 2018
    Inventor: Chih-Chen Kao
  • Patent number: 9950433
    Abstract: A folding knife having an improved locking engagement mechanism that will maintain and hold the knife in an open locked use position or in a locked folded position. The improved locking engagement provides a spring urged dual locking bar engaged directly on the knife blade for an improved imparted force transfer. A positional locking activation safety button is resiliently registerably against an apertured pivot arm extension of the locking bar for locking and unlocking engagement.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 24, 2018
    Inventor: Andrew Demko
  • Patent number: 9945647
    Abstract: Designs and methods are provided for a retractable broadhead blade. In one exemplary embodiment the broadhead blade is configured to be received in a slot in a broadhead body, and moveable between a retracted or in-flight position, and a deployed or target penetrating position. The broadhead blade includes a front end that faces substantially forward when the blade is in the retracted position, a distal end opposite the front end, an outward facing sharpened leading edge between the front end of the blade and the distal end, and an inward facing trailing edge opposite the leading edge. The blade further includes an integral spring member with a contact surface configured to bear against a blade locating portion of a broadhead body when the blade is in the retracted, or in-flight position.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: April 17, 2018
    Inventors: Carl Pugliese, Ronald E. Way
  • Patent number: 9908248
    Abstract: A manual tool capable of unfolding only one work accessory comprises a handle (11, 21), a first work accessory (12, 22) and a second work accessory (13, 23) that are connected to the handle through a pivot and can be unfolded and folded, and an associated accessory (14, 24). The associated accessory can transform the working state from a folding state to an unfolding state. When the first work accessory and the second work accessory are both folded, the associated accessory does not prevent any work accessory from unfolding; and when one of the two work accessories is unfolded and the other one is folded, the associated accessory prevents the other one from unfolding, so as to ensure that only one work accessory can be unfolded during use, thereby eliminating the safety risk caused by unfolding multiple work accessories at the same time.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: March 6, 2018
    Assignees: Hangzhou Great Star Tools Co., Ltd., Hangzhou Great Star Industrial Co., Ltd.
    Inventor: Weiyi Wang
  • Patent number: 9901367
    Abstract: A scalpel may include a blade cover having a length within the range of 3 to 9 centimeters and a blade body having a blade carrier and a blade. The blade cover may include a housing, a front lock member, a back lock member, and a safety lock member. The blade body may be fully retractable and movable within the housing. The front lock member, the back lock member, and the safety lock member may be configured to define at least three different locked positions of the blade body relative to the housing.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 27, 2018
    Assignee: SPECTRA MEDICAL DEVICES, INC.
    Inventor: Anthony C. Arrigo
  • Patent number: 9862105
    Abstract: Disclosed is a folding knife with safety device, which includes a main knife, a revolving shaft, a first liner plate, a first rivet, a switch lock sheet, a first handle part, a second handle part, a second liner plate and a spacer sleeve. The first liner plate is provided with a resilient lock sheet, an elongated slot, a stopper portion, a first rivet, a second rivet and a third rivet; the switch lock sheet is provided with a first rivet slot, a skidproof rack, a second rivet slot, a labor-saving slot, a locking contact, and a buckle; and the first handle part is provided with an axle hole, a holding slot, a holding hole and a screw hole. The present invention has advantages of simple structure, easy of use and stable performance.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 9, 2018
    Assignee: GUANGXI RUIKE OUTDOOR TOOLS MANUFACTURING CO., LTD.
    Inventor: Gang Liang
  • Patent number: 9843086
    Abstract: An apparatus and method for building and operating of a YIG-based filter-attenuator module with closed-loop control. The module combines both signal filtering and amplitude control functions by utilizing an yttrium-iron-garnet (YIG) resonator. A technique for a closed-loop calibration and control also disclosed. This apparatus and method provides a cost effective harmonic rejection/amplitude control solution for microwave test-and-measurement instruments such as signal generators and spectrum analyzers.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: December 12, 2017
    Assignee: Micro Lambda Wireless, Inc.
    Inventor: Oleksandr Chenakin
  • Patent number: 9751222
    Abstract: A lockback folding knife having a handle, a blade body pivotally connected in the handle, a constraint member pivotally connected with the handle and having an end abutted with the peripheral edge of the blade body when the blade body is completely stretched out of or received into the handle, a first elastic element having an end fastened in the handle and other end abutted with other end of the constraint member, a locking pin protruded on the constraint member, and a safety switch pivotally connected in the handle and having a locking groove formed thereon corresponding to the locking pin. The locking groove and pin are fastened together when the blade body is completely stretched out of or received into the handle, and the locking groove is escaped from being fastened with the locking pin when the safety switch is applied force.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 5, 2017
    Inventor: Chih-Chen Kao
  • Patent number: 9668810
    Abstract: A surgical instrument includes an elongated shaft module and a handle module selectively separable from one another. The elongated shaft module includes an elongated shaft member and a pair of jaw members supported at a distal end of the elongated shaft member, at least one of the jaw members moveable relative to the other jaw member between open and closed positions. The handle module includes a housing including an opening extending longitudinally therethrough. The opening is dimensioned to permit passage of the pair of jaw members in the closed position. The handle module also includes a movable handle movable relative to the housing to move the pair of jaw members between open and closed positions, and a lock to secure the elongated shaft module in place within the housing.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: June 6, 2017
    Assignee: COVIDIEN LP
    Inventors: James D. Allen, IV, Ryan C. Artale, Glenn A. Horner, Duane E. Kerr, Peter M. Mueller, Arlen J. Reschke, Robert M. Sharp, Robert B. Stoddard
  • Patent number: 9527218
    Abstract: A folding knife has dual operational modes. In a first modality, the knife is opened and closed manually. In a second modality, the knife is fully automatic. The user is able to use the knife in either mode, manual or automatic when the blade is in the closed position. In the automatic mode a bolster defines a trigger that causes the blade to move automatically from the closed to the open position. In the manual mode the user manipulates the blade manually to move it from the closed to the open position. A dry fire safety prevents firing of the knife with the trigger when the blade has been opened manually.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 27, 2016
    Assignee: Benchmade Knife Co., Inc.
    Inventor: Brian Valdez
  • Patent number: 9352473
    Abstract: A knife includes a handle, a blade including a cutting edge and coupled to the handle so that the blade can pivot about a pivot point relative to the handle between an extended position and a retracted position. The knife further includes a first locking member configured to selectively retain the blade in the extended position and movable to allow the pivotal movement of the blade from the extended position to the retracted position. The knife also includes a second locking member configured to selectively retain the blade in the retracted position and movable to allow the pivotal movement of the blade from the retracted position to the extended position. The knife also includes a push button that is movable relative to the handle, the push button operable to move the second locking member to allow the pivotal movement of the blade from the retracted position to the extended position.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: May 31, 2016
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventor: Kyle Harvey
  • Patent number: 9304496
    Abstract: A multi-purpose tool watch comprising, a wristband housing having a bottom surface, an outer edge and a sidewall that extends upwards from said bottom surface outer edge, said sidewall having an inner surface, a watch body having a boundary edge and top and bottom surfaces, a watch face, and the bottom surface, a tubular member, a flange. The tubular member of the tool watch is mounted to the watch body boundary edge, wherein the flange interacts with the wristband housing to lock and unlock the tubular member to the housing. Tool members have a configuration to be moved from a stored position to an extended position for use, and wherein the tool members in a stored position are located between said tubular member outer surface and said sidewall of the wristband housing when said watch body bottom surface is adjacent said wristband housing bottom surface.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: April 5, 2016
    Inventor: Patrick Andrew Hancock
  • Patent number: 9186801
    Abstract: A folding tool includes a handle, a tool member and a tool member cover. The handle includes a first handle half and a second handle half. One end of the tool member is pivotally retained by the handle. A cover pivot pin is retained in the other end of the first and second handle halves. The cover pivot pin is inserted through a longitudinal slot formed through one end of the tool member cover. A substantially D-shaped slot is formed in the other end of the first or second handle halves. A guide pin extends from the tool member cover. The guide pin is sized to slide freely in the substantially D-shaped slot. The tool member cover is pivoted against the tool member in an open position and pivoted away from the handle to protect the tool member in a closed position.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 17, 2015
    Inventor: Kenneth A. Steigerwalt
  • Patent number: 9149940
    Abstract: A knife is provided. The knife comprises a handle and a blade configured to pivot with respect to the handle between an open position wherein a cutting edge of the blade is exposed and a closed position wherein the cutting edge of the blade is disposed within the handle, the blade including an abutting surface. The knife may further comprise a locking assembly configured to releasably lock the blade in the open position, the locking assembly comprising a biased, rotatable member having a canted surface for engaging a corresponding surface on the blade, wherein the canted surface and the corresponding surface are configured to secure the blade relative to the handle in the open position.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 6, 2015
    Assignee: JPJ Investment Holding Corp.
    Inventor: Wen Hao
  • Patent number: 9126343
    Abstract: The present invention is to provide a folding knife, which includes an actuation element having one side provided with a pushing member and a sliding member and an opposite side provided with a locking member. The pushing member extends out of a handle through a pushing slide groove of the handle. The sliding member extends into a positioning slide groove of the handle and is located in an elastic ring. The locking member can extend into a curved groove of a blade. Once the blade is fully rotated out of the handle, the pushing member can be pushed toward the tip of the blade, causing the sliding member to pass through a limiting portion of the elastic ring and enter a locking area of the elastic ring. Consequently, the locking member is engaged in an opened-state locking groove of the curved groove and locks the blade in an opened state.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: September 8, 2015
    Inventor: Shun-Fu Chen
  • Patent number: 9101147
    Abstract: Method and device for cleaning fish in successive work steps with the one and the same cleaning device (10) combining a scaling member (20), a blade (40) for opening the fish's belly and an entrail removal member (30). The scaling of the fish is performed with the embossed scaling member (20) of the cleaning device, after which the blade (40) of the cleaning device is exposed and the fish's belly is opened. After that, the blade of the cleaning device is turned so that it is not exposed and the fish's entrails are removed with the spoon-like entrail removal member (30) of the cleaning device.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: August 11, 2015
    Assignee: Ricu-Tuotteet Oy
    Inventor: Mika Leinonen
  • Patent number: 9061426
    Abstract: A knife including a handle, a blade, and a frame at least partially within the handle, the frame including a first locking member and a second locking member, the first locking member is at least partially formed from a leaf spring portion of the frame, the second locking member is at least partially formed from a second leaf spring portion of the frame. The second locking member engages the blade to retain the blade in a retracted position and the second locking member is movable out of engagement with the blade to allow movement of the blade from the retracted position to an extended position. The first locking member engages the blade to retain the blade in the extended position and the first locking member is movable out of engagement with the blade to allow movement of the blade from the extended position to the retracted position.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: June 23, 2015
    Assignee: Milwaukee Electric Tool Corporation
    Inventor: Kyle Harvey
  • Publication number: 20150143704
    Abstract: A folding knife apparatus including a blade device having a blade with a sharp edge; a sliding device; a stop device; and a housing. The blade device may be connected to the housing so that the blade device rotates with respect to the housing unless prevented by the stop device. The sliding device may be connected to the housing so that the sliding device can slide with respect to the housing. When the sliding device is slid in a first direction, the blade device rotates with respect to the housing from a first state to a second state, wherein in the first state the sharp edge of the blade device is within the housing so that the sharp edge cannot be touched by an individual holding the apparatus, in the second state the sharp edge is outside the housing so that the sharp edge can be touched by the individual.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Inventor: Victor Lee
  • Publication number: 20150128426
    Abstract: A locking mechanism for a folding knife is provided. More specifically, the locking mechanism is a two-piece backlock that maintains the folding knife's extended position and prevents the blade from inadvertently closing when the knife is in use in the extended position and impedes the folding knife from inadvertently opening when the knife is in a closed position of storage. The locking mechanism generally comprises a backlock, a toggle, and a biasing member. The toggle rotates between two positions and engages with the tang of the blade and the backlock.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: Spyderco, Inc.
    Inventor: Kimiyuki Sakai
  • Patent number: 9009979
    Abstract: A system for locking a blade of a knife with a folding blade in an unfolded position includes a handle-forming part for a user to grasp, and a blade pivotably mounted relative to this handle-forming part. The blade pivots to adopt either an unfolded position for use, or a foldaway position for storage, wherein it is partially concealed in the handle-forming part. A first locking element on a top of the knife, cooperates with the blade and adopts a first position of locking the blade in the unfolded position and a second release position of the blade A second locking element cooperating with the first locking element, adopts a first position of locking the first locking element in the first locking position of the blade, and a second release position wherein the second locking element forces the first locking element to adopt the second release position of the blade.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: April 21, 2015
    Assignee: Wildsteer
    Inventor: Edouard De Buyer-Mimeure
  • Publication number: 20150082640
    Abstract: A liner lock folding knife with an improved liner lock mechanism which provides increased safety in use. The locking mechanism provides for simple one-handed operation and the ability to tactilely know when the blade is securely locked in the open position.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 26, 2015
    Inventor: Glen Forrest Huff
  • Patent number: 8966768
    Abstract: Disclosed herein is a folding tool having a handle, a tool element and a ball bearing assembly. In some embodiments of the present disclosure, the handle of the folding tool includes a first, second side panel and a first, second side panel liner wherein the ball bearing assembly is positioned between the first side panel liner and the second side panel liner. The ball bearing assembly includes a first bearing race and a second bearing race each race having a ball housing. A plurality of balls reside partially within each ball housing and are positioned to contact an adjacent side surface of the tang of the tool element thereby allowing the plurality of balls to roll along opposing sides of the tang as the tool element is pivoted from the open position to the closed position. In some embodiments, the tool element is a knife blade.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: March 3, 2015
    Assignee: GB II Corporation
    Inventor: Kenneth J. Onion
  • Patent number: 8966769
    Abstract: A folding knife includes a handle assembly and a blade with a tang mounted to the handle assembly for pivotal movement of the blade between open and closed positions. The knife includes a bolt locking assembly carried in the handle assembly for movement between a locked configuration and an unlocked configuration. The bolt locking assembly includes first and second bolts. In the locked configuration of the bolt locking assembly, the first and second bolts are in an interference position with the tang so as to prevent pivotal movement of the blade.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 3, 2015
    Inventors: Mark J. Mollick, Paul J. Mollick
  • Patent number: 8966770
    Abstract: A cutting apparatus includes a handle frame, a cutting blade, and a blade rotation arrangement. The cutting blade has a first blade portion and a second blade portion. The blade rotation arrangement includes a pivot, a securing frame and an actuation member. The cutting blade is arranged to rotate between a first position and a second position, wherein in the first position, the first blade portion is extended out of the receiving cavity while the second blade portion is received in the receiving cavity, wherein in the second position, the second blade portion is extended out of the receiving cavity while the first blade portion is received in the receiving cavity. The securing frame is mounted in the receiving cavity for reinforcing the cutting blade when the cutting blade move between and at the first position and the second position.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: March 3, 2015
    Inventor: Ping Sun Lau
  • Patent number: 8959779
    Abstract: A multi-angle positioned foldable knife includes a knife body (1), a handle (2) and a pin (3). The knife body (1) is pivotally connected with the handle (2) through the pin (3). A cam (4) is arranged on the connecting end of the knife body (1), and snap openings (41) on the outer edge of the cam are provided to position the knife body (1) at multi-angle relative to the handle (2). A positioning button (5) is arranged on the connecting end of the handle (2), and a snap edge (51) is provided on the interior end of the button (5). The snap edge (51) can connect with a snap opening (41) on the outer edge of the cam (4). Compared with prior art, the foldable knife has simple structure, controlled angle, safe use, convenient operation, simple preparation etc. The knife body (1) can be positioned at multi foldable position. Additionally, the rotation of the knife body (1) can be achieved only by pressing the button (5).
    Type: Grant
    Filed: September 26, 2010
    Date of Patent: February 24, 2015
    Assignee: Kunjek Handtools & Hardware Co., Ltd.
    Inventor: Hao Wen
  • Patent number: 8935855
    Abstract: The invention discloses a utility knife preventing its blade from accidental detachment. Prior utility knives may lose constraint on the blade due to tilting of the retaining member when the blade receives external force from the blade holder pulling outward, causing the blade to detach accidentally from the blade holder. In the present invention, the line of the action force in the engagement area of blade and retaining member extends over the axis of axle pin where the retaining member is mounted, so that when the blade receives external force pulling it outward from the blade holder, a counterclockwise torque is formed to the retaining member to allow the retaining member constrain the blade more tightly and thus prevent the blade from accidental detachment.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: January 20, 2015
    Assignees: Hangzhou Great Star Industrial Co., Ltd., Hangzhou Great Star Tools Co., Ltd.
    Inventor: Jianping Qiu
  • Publication number: 20140360023
    Abstract: A folding knife has a handle portion and a safety liner with a spring biased portion that slides laterally lodging the end of the spring biased portion under the tang of the knife blade to hold the blade in a safe open position. An adjustment screw has an extended ball surface disposed in a sleeve extending through and attached to one side of the handle and the safety liner. A rotational safety has a safe on detent and a safe off detent for receiving the ball is disposed between the safety liner and the tang of the blade. The blade is secured in the open position by rotating the rotational safety to a safe on position, lodging a safety engagement end under an edge of the spring safety portion of the safety liner and lodging the ball surface into the safe on detent. The adjustment screw is adjusted by to maintain the safety of the knife over time.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 11, 2014
    Inventor: Ronald W. Lake
  • Publication number: 20140345145
    Abstract: A knife with an asymmetric slip joint is disclosed.
    Type: Application
    Filed: March 15, 2014
    Publication date: November 27, 2014
    Inventors: Spencer Frazer, Beren McKay
  • Patent number: 8893389
    Abstract: A folding tool includes a handle and an implement pivotally coupled to the handle. The implement is adapted to travel between a closed position and an open position. The implement includes a tang having a contoured surface. The folding tool also includes a locking device movable between a locked position and an unlocked position along an axis that is transverse to a plane defined by the implement. The folding tool further includes a cantilever spring having a first end coupled to the handle and a second end adapted to interact with the tang of the implement. The spring exerts a closing force on the implement when the blade is in a closed position. The spring exerts an opening force on the implement during at least a portion of the travel of the implement between the closed position and the open position.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: November 25, 2014
    Assignee: Fiskars Brands, Inc.
    Inventor: Jeff Freeman
  • Publication number: 20140338198
    Abstract: A knife opening mechanism is disclosed. In some embodiments, a knife includes a handle having a pivot pin to pivotably attach a blade to the handle, the handle having a cavity to receive the blade in a closed position, a blade pivotably connected to the handle by the pivot pin, the blade having a front tang portion and a rear blade portion, wherein the rear tang portion receives an engagement surface from a lockback bar to lock the blade in an open position and wherein the front tang portion is contoured to engage the lockback bar engagement surface to resist rotation of the blade, and a locking foot safety to lock the lockback bar when the knife is in a closed position, wherein the locking foot safety engages the foot of the lockback bar on the end of the lockback bar near the pivot pin.
    Type: Application
    Filed: March 15, 2014
    Publication date: November 20, 2014
    Inventors: Spencer Frazer, Beren McKay
  • Patent number: 8863394
    Abstract: The present invention is to provide a folding knife having a blade pivotally connected to a handle. A resilient locking arm has a first end fixed inside to the handle and a second end extending slantingly toward the blade when the blade is received in the handle. A positioning plate is movably positioned in the handle, and has a first end extending outside to the handle. Once the blade is received in the handle, the positioning plate engages with the resilient locking arm. However, when the blade is rotated out of the handle completely, the second end of the resilient locking arm presses against the end of the blade in a locked position, and thereby the positioning plate disengages with the resilient locking arm and presses against the resilient locking arm to avoid the blade from being out of the locked position and rotated into the handle.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: October 21, 2014
    Inventor: Yen-Fen Lo
  • Patent number: 8863393
    Abstract: The present invention is to provide a folding knife with two-stage lock release, which comprises a handle including three plates, and a blade pivotally installed between first and second plates. The second plate has an elastic stop plate installed thereon having a first engage portion, such that after the blade is turned out from the handle completely, the elastic stop plate can abut against the blade. A positioning plate including a second engage portion is movably positioned between the second and third plates, and has an end extended out from the handle, such that when the blade is unfolded completely and the positioning plate is moved and fixed to a pressed position, the first and second engage portions can be engaged with each other, and the elastic stop plate can be separated from the blade, so as to enable the blade to be turned into the handle.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: October 21, 2014
    Inventor: Shun-Fu Chen
  • Publication number: 20140259686
    Abstract: A pocket knife (or pocket safety cutter) having a housing (or handle) and a folding/blade holder portion includes or is configured with one or more of, for example: a blade change mechanism with multiple safety features, a locking mechanism (for the folding/blade holder portion), and independently operable protective guards (for the folding/blade holder portion).
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: Pacific Handy Cutter, Inc.
  • Publication number: 20140245616
    Abstract: Disclosed herein are embodiments of easily disassembled folding knives. In some embodiments, a folding knife includes a blade and a handle including first and second side portions. The first and second side portions can include respective locking elements which can be used to retain the side portions from lateral separation from one another. In some cases, the locking elements of one side portion include relatively narrow neck portions with relatively wide, non-circular head portions connected to the neck portions, and the locking elements of the other side portion include a recess and a corresponding non-circular opening. In some cases, folding knives can be provided with washers, liner lock mechanisms, and various other features.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 4, 2014
    Applicant: GB II Corporation, dba Columbia River Knife & Tool Company
    Inventor: Kenneth J. Onion
  • Patent number: 8813368
    Abstract: The present disclosure concerns embodiments of a folding knife having a locking mechanism for locking a blade in open and/or closed positions. The locking mechanism a first locking element on the blade and a corresponding second locking element on the handle that is adapted to engage the first locking element when the blade is in open and/or closed positions. The blade can be mounted on a leaf spring in the handle for pivotal movement relative to the handle between the open and closed positions. The leaf spring functions to support the blade and provide a biasing force that resiliently biases in a direction laterally toward the second locking element on the handle.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: August 26, 2014
    Assignee: GB II Corporation
    Inventor: Edward Tate VanHoy
  • Patent number: 8813366
    Abstract: The present invention relates to a folding knife handle, which includes a first housing pivotally connected to a blade and formed with an arcuate guide groove through which a stud of the blade passes, a pushing element movably located on the first housing and having one end exposed from the handle, a pressing element connected to the pushing element and having one end provided with a pressing plate, and a second housing assembled to the first housing to cover the pressing element. When the stud is located at a first end of the arcuate guide groove and the pressing plate doesn't press against the stud, the blade is fully received in the handle and, when the pressing plate presses against and moves the stud toward a second end of the arcuate guide groove, the stud is driven by a resilient member to move the blade fully out of the handle.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: August 26, 2014
    Inventor: Chia-Ying Chen
  • Patent number: 8813367
    Abstract: A folding tool includes a bolster that acts as a safety and lock release. The tool may be designed for one-hand opening. An implement is held in a stored closed position by a safety formed by the bolster and a button style lock. The implement can be opened to the ready-for-use position by rotating the bolster to release the safety, and then rotating the implement. Once the implement is open, the bolster is rotated back to its original position setting the lock for the tool.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: August 26, 2014
    Assignee: Buck Knives, Inc.
    Inventor: Eric P. Linn
  • Patent number: 8793881
    Abstract: A utility knife includes a handle, a blade holder assembly, and a clamp assembly. The blade holder assembly is constructed and arranged to hold a blade at a position of use at one end of the handle. The clamp assembly is constructed and arranged to move between a clamp position wherein the clamp assembly applies a clamp force to side surfaces the blade and a release position wherein the clamp assembly releases the clamping force.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: August 5, 2014
    Assignee: Stanley Black & Decker, Inc.
    Inventors: Stephen Rowlay, Edward Iliffe, Martin Charles Price
  • Publication number: 20140173910
    Abstract: A folding knife includes a handle assembly, a blade, and a secondary tool. The blade is pivotally connected to the handle assembly and is configured to pivot from a closed position to an opened position. The secondary tool is pivotally connected to the handle assembly and is configured to pivot from a closed position to an opened position. The secondary tool includes a locking member that traps the blade in the closed position when the secondary tool is in the opened position but allows the blade to pivot to the opened position when the secondary tool is in the closed position.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: Kai U.S.A., Ltd.
    Inventors: Craig Donald Kemp Green, James MacNair
  • Patent number: 8752298
    Abstract: A folding knife includes a lock blade and a handle. The handle includes a transfer bar assembly and a blade opener spring. When the lock blade is closed, a spring working in conjunction with the transfer bar assembly biases the lock blade closed. When the lock blade is opened past a certain point, a blade opening spring assists in moving the lock blade into its open locked position.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 17, 2014
    Inventors: Michael C. Collins, Jane Collins
  • Patent number: 8745878
    Abstract: A folding knife locking mechanism is provided which maintains the open and closed positions associated with the folding knife. A carrier assembly for the locking mechanism for changing the folding knife from the closed to the open position is also disclosed. In one embodiment, the folding knife comprises a carrier assembly for positioning a spherical locking mechanism against the tang of the knife, without the need for scales or other retaining elements typical in prior art knives.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: June 10, 2014
    Assignee: Spyderco, Inc.
    Inventor: Eric G. Glesser
  • Patent number: 8732958
    Abstract: A locking mechanism for a folding knife includes a thumb post which longitudinally moves along slots in the handle of the knife. The thumb post is urged by a spring loaded locking lever into a notch in the base of the blade of the knife. When so positioned the thumb post retains the blade in an extended position. When the user pushes the thumb post out of the notch, the blade can be folded into the handle of the knife. In another embodiment the thumb post is an integral part of the locking lever, and it is a tab on the locking lever rather than the thumb post engages the notch in the base of the blade.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: May 27, 2014
    Inventor: Yi Huang
  • Publication number: 20140115899
    Abstract: A folding knife having a back bar configured to engage the tang portion of a blade. A release member mechanism is utilized to engage the back bar to apply force thereto to at least partially disengage the back bar from the tang portion of the blade for purposes of repositioning the blade with respect to the handle.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Inventor: Spencer Frazer