With Sharpening Feature Patents (Class 30/138)
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Patent number: 10933552Abstract: Knives and knife assemblies for slicing machines and centrifugal-type slicing machines equipped therewith. Such a knife includes a cutting edge and an opposing edge oppositely disposed from the cutting edge. The cutting and opposing edges extend along a longitudinal length of the knife, and the knife has a handle at a longitudinal end of the knife. A transition region is between the cutting edge and the handle, and the transition region has a minimum lateral width of roughly one half of a lateral width between the cutting and opposing edges of the knife, with the result that a portion of the knife that laterally extends beyond the transition region is up to roughly half of a lateral width of the knife between the cutting and opposing edges.Type: GrantFiled: June 10, 2019Date of Patent: March 2, 2021Assignees: Urschel Laboratories, Inc., Crescent Manufacturing CompanyInventors: Corey Everette Baxter, Dustin Joseph Gereg, Steven Eugene Dudley
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Patent number: 10309776Abstract: A laser alignment guide. The laser alignment guide includes a housing having at least one sidewall and a base defining an interior volume therein. A cap is removably securable to an upper end of the housing. The cap further includes at least one light source that can emit a visible laser disposed thereon. A mounting bracket that can magnetically secure to a surface is disposed on a second end of the housing. In some embodiments, at least one light source is disposed on a sidewall of the housing.Type: GrantFiled: May 24, 2017Date of Patent: June 4, 2019Inventor: Paul Joseph Doeren
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Patent number: 8950073Abstract: A chain sharpening device arranged to sharpen a saw chain. The device comprises a housing (110), arranged to be detachably mounted on the guide bar (3), a sharpening element (140) selectively displaceable relative to the housing between a resting state and a sharpening state, an actuator (150), selectively displaceable between an inactivated state and an activated state, which actuator is connected to the sharpening element and arranged to selectively bring the sharpening element from the resting state to the sharpening state, a first biasing member (160) operatively connected to the actuator and arranged to bias the actuator towards its inactivated state, a second biasing member (170), operatively connected to the sharpening element and arranged to enable relative movement between the actuator and the sharpening element when the sharpening element is in the sharpening state, so as to delimit a force with which the sharpening element (140) can be pressed towards the saw chain.Type: GrantFiled: June 23, 2011Date of Patent: February 10, 2015Assignee: Husqvarna ABInventors: Pär Martinsson, Alexander Rashid Gawad, Lucas Lund
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Patent number: 8943698Abstract: The kitchen knife with the sharpener includes: a cutout recess formed in an end of the handle; a locking space extending from the cutout recess; and a sharpener, including: a locking part removably received in the locking space; a sharpener body extending from the locking part; a whetting groove transversely formed in the sharpener body; plate-shaped whetstones inclinedly installed on opposing sidewalls of the whetting groove so that the whetstones form a V-shaped arrangement; and a rubber cushion placed below a rear surface of a whetstone.Type: GrantFiled: June 20, 2012Date of Patent: February 3, 2015Assignee: Forever Co., Ltd.Inventor: Akira Hirai
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Patent number: 8932114Abstract: Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.Type: GrantFiled: March 2, 2012Date of Patent: January 13, 2015Assignee: Blount, Inc.Inventors: Christopher D. Seigneur, Lance Luedtke
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Patent number: 8887604Abstract: Embodiments herein provide a dresser link for a saw chain that is configured to condition a sharpening element. The dresser link may include a conditioning element with an outer edge that is offset from an outer side of the dresser link. The conditioning element may include a horizontal relief angle and/or a vertical relief angle. The saw chain may further include a cutter link having a cutting element. The horizontal and/or vertical relief angle may facilitate maintenance of a clearance between the cutting element and the conditioning element after wear of the cutting element and conditioning element.Type: GrantFiled: March 13, 2013Date of Patent: November 18, 2014Assignee: Blount, Inc.Inventor: Mike Goettel
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Publication number: 20140137414Abstract: This invention relates to a blade storing device and blade combination. The blade includes opposite substantially parallel sides which meet at a cutting edge. The blade storing device includes a housing having an access opening at an end of the housing through which the blade can be moved longitudinally to be inserted into or withdrawn from the housing. The combination includes a blade restraining mechanism that includes a restraining member coupled to the housing and an opening within the blade, the restraining member having active and inactive positions. In the active position, the restraining member is positioned inside the opening within the blade for preventing withdrawal of the blade from the housing. In the inactive position, the restraining member is positioned outside the opening within the blade for allowing withdrawal of the blade from the housing.Type: ApplicationFiled: April 25, 2013Publication date: May 22, 2014Applicant: McPherson's LimitedInventor: McPherson's Limited
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Patent number: 8721403Abstract: A knife storage and sharpening apparatus including a knife block having a plurality of elongate recesses each for receipt of a different knife and having a recess for receipt of a knife sharpening steel. The apparatus further includes another form of knife sharpening means specifically adapted for receipt in the recess for receipt of the steel. The knife sharpening means can be used to sharpen a knife while it is mounted in the sharpening steel recess. If the knife user prefers to use a sharpening steel, the knife sharpening means may be removed from the knife block to provide storage for the sharpening steel.Type: GrantFiled: January 18, 2008Date of Patent: May 13, 2014Assignee: Robert Welch Designs LimitedInventor: Alan Rupert Welch
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Publication number: 20140123499Abstract: A chain sharpening device arranged to sharpen a saw chain. The device comprises a housing (110), arranged to be detachably mounted on the guide bar (3), a sharpening element (140) selectively displaceable relative to the housing between a resting state and a sharpening state, an actuator (150), selectively displaceable between an inactivated state and an activated state, which actuator is connected to the sharpening element and arranged to selectively bring the sharpening element from the resting state to the sharpening state, a first biasing member (160) operatively connected to the actuator and arranged to bias the actuator towards its inactivated state, a second biasing member (170), operatively connected to the sharpening element and arranged to enable relative movement between the actuator and the sharpening element when the sharpening element is in the sharpening state, so as to delimit a force with which the sharpening element (140) can be pressed towards the saw chain.Type: ApplicationFiled: June 23, 2011Publication date: May 8, 2014Applicant: HUSQVARNA ABInventors: Pär Martinsson, Alexander Rashid Gawad, Lucas Lund
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Patent number: 8661690Abstract: The invention relates to scissors and a sharpening device. The scissors include two blades, each blade having a cutting edge and a back edge which respectively form opposite longitudinal edges of the blade. A pivot connects the two blades for relative movement of the blades between an open condition in which the cutting edge of each blade are apart and a closed condition in which each blade are substantially adjacent and the back edge of each blade projects beyond the cutting edge of the other blade. The blades also include a sharpening condition in which the cutting edge of each of the blades can be sharpened. A biasing means is included for biasing the blades away from the sharpening condition towards the closed condition and/or the open condition. The sharpening device is for scissors including two blades having a cutting edge.Type: GrantFiled: October 15, 2009Date of Patent: March 4, 2014Assignee: McPherson's LimitedInventors: Rosemary Murphy, Clive Solari
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Patent number: 8656596Abstract: A cutting and sharpening device includes a body, a blade element having a cutting edge and rotatably mounted with respect to the body, and a sharpening tool configured to be removably coupled to the body. The sharpening tool can be selectively moved between a first position in which the sharpening tool is spaced from the blade element and a second position in which the sharpening tool contacts the blade element adjacent the cutting edge. The device can be used as a rolling cutter or slicer, and as a sharpening device that sharpens the blade element when the sharpening tool is coupled to the body. The sharpening tool can sharpen the cutting edge when it is in the second position and the blade element is rotated or rolled, directly or indirectly, on a surface.Type: GrantFiled: February 2, 2011Date of Patent: February 25, 2014Assignee: Chef'n CorporationInventors: David A. Holcomb, Matthew Krus
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Publication number: 20130326883Abstract: The invention relates to scissors and a sharpening device. The scissors include two blades, each blade having a cutting edge and a back edge which respectively form opposite longitudinal edges of the blade. A pivot connects the two blades for relative movement of the blades between an open condition in which the cutting edge of each blade are apart and a closed condition in which each blade are substantially adjacent and the back edge of each blade projects beyond the cutting edge of the other blade. The blades also include a sharpening condition in which the cutting edge of each of the blades can be sharpened. A biasing means is included for biasing the blades away from the sharpening condition towards the closed condition and/or the open condition. The sharpening device is for scissors including two blades having a cutting edge.Type: ApplicationFiled: August 14, 2013Publication date: December 12, 2013Applicant: MCPHERSON'S LIMITEDInventors: Rosemary Murphy, Clive Solari
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Patent number: 8590427Abstract: A housing including a honing device, a blade sharpener, a blade restraining mechanism, and a biased blade guide being received in a scabbard or a knife block. Wherein a knife is honed and sharpened upon insertion into the housing, or upon withdrawal from the housing, or both, and wherein the blade is retained within the housing after insertion therein.Type: GrantFiled: June 22, 2010Date of Patent: November 26, 2013Assignee: McPherson's LimitedInventors: Rosemary Murphy, Clive Solari
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Publication number: 20130205597Abstract: The kitchen knife with the sharpener includes: a cutout recess formed in an end of the handle; a locking space extending from the cutout recess; and a sharpener, including: a locking part removably received in the locking space; a sharpener body extending from the locking part; a whetting groove transversely formed in the sharpener body; plate-shaped whetstones inclinedly installed on opposing sidewalls of the whetting groove so that the whetstones form a V-shaped arrangement; and a rubber cushion placed below a rear surface of a whetstone.Type: ApplicationFiled: June 20, 2012Publication date: August 15, 2013Applicant: Forever Co., Ltd.Inventor: Akira Hirai
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Patent number: 8381339Abstract: A fixed blade knife that is intended for survival or tactical use is provided with a removable, ejectable, self contained compartment for the storage and carriage of survival and/or tactical gear within the handle of the knife. A self contained, removable compartment is superior to a separate butt cap for the handle as a butt cap requires the use of two functioning hands for removal, is not as fast as an ejectable compartment and can be lost rendering the handle useless for the storage and carriage of gear. The self contained compartment eliminates the necessity for a butt-cap, can be ejected quickly with a single digit that may or not be otherwise useless due to injury or environmental conditions. The compartment also serves to contain the gear there-in separate from the knife handle to prevent loss and allow use of said gear by a second individual while the knife itself may be in use by the primary user.Type: GrantFiled: February 10, 2011Date of Patent: February 26, 2013Inventor: Mark Steele Knapp
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Publication number: 20130025132Abstract: A self-powered chainsaw, typically a battery powered chainsaw, comprising a housing (1; 21), a power source (5; 25), a endless cutting chain (4; 24) having a plurality of cutting elements and a motor (6) arranged to drive the chain (4; 24) relative to the housing (1; 21) using power from the power source (5; 25), in which the chainsaw further comprises a sharpening element (12; 32) which is arranged so as to be driven relative to the cutting elements and the housing (1; 21) using the power source (5; 25).Type: ApplicationFiled: February 20, 2010Publication date: January 31, 2013Applicant: GARDENA MANUFACTURING GMBHInventors: Pär Martinsson, Johan Svennung, Peter Lameli, Ottmar Locher, Christoph Schiedt, Martin Bepler, Hans Waigel
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Publication number: 20120222313Abstract: Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.Type: ApplicationFiled: March 2, 2012Publication date: September 6, 2012Applicant: BLOUNT, INC.Inventors: Christopher D. Seigneur, Lance Luedtke
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Publication number: 20120204354Abstract: A fixed blade knife that is intended for survival or tactical use is provided with a removable, ejectable, self contained compartment for the storage and carriage of survival and/or tactical gear within the handle of the knife. A self contained, removable compartment is superior to a separate butt cap for the handle as a butt cap requires the use of two functioning hands for removal, is not as fast as an ejectable compartment and can be lost rendering the handle useless for the storage and carriage of gear. The self contained compartment eliminates the necessity for a butt-cap, can be ejected quickly with a single digit that may or not be otherwise useless due to injury or environmental conditions. The compartment also serves to contain the gear there-in separate from the knife handle to prevent loss and allow use of said gear by a second individual while the knife itself may be in use by the primary user.Type: ApplicationFiled: February 10, 2011Publication date: August 16, 2012Inventor: Mark Steele Knapp
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Patent number: 8117754Abstract: A fixed-blade knife having a knife body. The knife body has a blade with a cutting edge and an elongated handle extending from the blade. A guard is pivotally coupled to the knife body and adapted to be actuated between an open position and a closed position. The guard has an external surface that is ergonomically configured for handling the knife when the guard is in the open position. In the open position, the guard is positioned adjacent the handle to expose the cutting edge. In the closed position, the guard is positioned adjacent the blade to cover the cutting edge.Type: GrantFiled: October 19, 2007Date of Patent: February 21, 2012Assignee: Mastrad, S.A.Inventors: Mathieu Lion, Lucas Bignon
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Publication number: 20120011726Abstract: A rotary cutter includes a rotatable cutter blade and a grinding element supported on a support at one side relative to the cutter blade for grinding the cutter blade. A gap is normally kept between the grinding element and the cutter blade. The support is operable to move the grinding element into friction contact with the rotating cutter blade when grinding is necessary during a cutting operation of the rotary cutter. The grinding element can be normally kept in friction contact with the cutter blade so that a grinding effect is produced when rotating the cutter blade during a cutting operation.Type: ApplicationFiled: July 15, 2010Publication date: January 19, 2012Applicant: MIKE & TONY TRADING CO., LTD.Inventor: MIKE LU
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Publication number: 20110289782Abstract: The invention relates to scissors and a sharpening device. The scissors include two blades, each blade having a cutting edge and a back edge which respectively form opposite longitudinal edges of the blade. A pivot connects the two blades for relative movement of the blades between an open condition in which the cutting edge of each blade are apart and a closed condition in which each blade are substantially adjacent and the back edge of each blade projects beyond the cutting edge of the other blade. The blades also include a sharpening condition in which the cutting edge of each of the blades can be sharpened. A biasing means is included for biasing the blades away from the sharpening condition towards the closed condition and/or the open condition. The sharpening device is for scissors including two blades having a cutting edge.Type: ApplicationFiled: October 15, 2009Publication date: December 1, 2011Applicant: MCPHERSON'S LIMITEDInventors: Rosemary Murphy, Clive Solari
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Patent number: 8051518Abstract: A combination tool is described that has a housing that includes a first side and an opposed second side, a third side and an opposed fourth side. The sides connect together to define the housing. The housing includes a first end portion and an opposed second end portion that define a longitudinal axis. The combination tool includes a razor mechanism that is connected to the housing. The razor mechanism receives and moves a cutting blade between a first position in the cavity and a second position wherein the cutting blade extends through the housing. The housing defines a channel that includes a floor, a first sidewall and a second sidewall. The first sidewall and the second sidewall have first edges that are connected to the floor and second edges that connect to the first side of the housing. The first sidewall includes a first slot and the second sidewall includes an opposed second slot. The first slot and second slot are positioned in fixed spaced relation from the floor and the second edge.Type: GrantFiled: December 26, 2008Date of Patent: November 8, 2011Inventor: Daniel J. Massaro
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Publication number: 20110192034Abstract: A cutting and sharpening device includes a body, a blade element having a cutting edge and rotatably mounted with respect to the body, and a sharpening tool configured to be removably coupled to the body. The sharpening tool can be selectively moved between a first position in which the sharpening tool is spaced from the blade element and a second position in which the sharpening tool contacts the blade element adjacent the cutting edge. The device can be used as a rolling cutter or slicer, and as a sharpening device that sharpens the blade element when the sharpening tool is coupled to the body. The sharpening tool can sharpen the cutting edge when it is in the second position and the blade element is rotated or rolled, directly or indirectly, on a surface.Type: ApplicationFiled: February 2, 2011Publication date: August 11, 2011Inventors: David A. Holcomb, Matthew Krus
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Publication number: 20110030223Abstract: Embodiments include a sharpening fixture adapted to mount to the nose of a chainsaw guide bar. When mounted, the operator may direct a force towards the guide bar thereby causing a linear directed actuator to move a sharpening element into engagement with cutters of a saw chain to sharpen a cutting edge of the cutters. In various embodiments, the actuator is biased such that when the force is no longer applied, the actuator pulls the sharpening element out of engagement with the cutters.Type: ApplicationFiled: October 21, 2010Publication date: February 10, 2011Applicant: BLOUNT, INC.Inventors: Christopher Seigneur, Ian Osborne
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Publication number: 20110009040Abstract: A sharpening tool includes a handle, a first sharpening unit mounted on a first end of the handle, and a second sharpening unit mounted on a second end of the handle. The first sharpening unit includes a fixed blade mounted on the handle, a first threaded post rotatably mounted on the handle, a first slide having a first toothed portion meshing with the first threaded post, and a movable blade fixed on the first slide. The second sharpening unit includes a second threaded post rotatably mounted on the handle, a second slide having a second toothed portion meshing with the second threaded post, and a flat blade fixed on the second slide.Type: ApplicationFiled: July 7, 2009Publication date: January 13, 2011Inventor: Shih-Piao Wu
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Publication number: 20100236075Abstract: A kitchenware utensil composed of fibreglass reinforced polyphenyl sulfide PPS is provided. In particular, a kitchenware scraper and an improved scraper blade, composed of PPS are described. The invention also provides a stand for storing the scraper in an upright position, and an abrasive apparatus for reshaping or sharpening the scraper.Type: ApplicationFiled: March 12, 2010Publication date: September 23, 2010Inventor: Richard Lambert
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Patent number: 7686675Abstract: Apparatus, kits, and methods for sharpening electric shavers having rotary and reciprocating-type cutting members are disclosed. A sharpening apparatus in accordance with an exemplary embodiment of the present invention may include an applicator tray or other applicator means, and an abrasive material configured to abrade and sharpen the cutting surfaces of the electric shaver, when actuated.Type: GrantFiled: September 1, 2006Date of Patent: March 30, 2010Inventor: James M. Steele
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Publication number: 20100005666Abstract: Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.Type: ApplicationFiled: June 25, 2009Publication date: January 14, 2010Applicant: BLOUNT, INC.Inventors: Chris Seigneur, Mike Goettel, Mike Harfst, Mike Patterson, Mark Schoening, Scot Pyle, Ian Osborne
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Patent number: 7637803Abstract: The combination of a knife storage block and a knife sharpener including a sharpening unit. The combination has a guard extending forwardly from either the knife storage block or the sharpener which in use protects a user's hand while drawing a knife through the sharpening unit. The knife sharpener may be external to the knife block or integral to it.Type: GrantFiled: June 5, 2008Date of Patent: December 29, 2009Assignee: Robert Welch Designs LimitedInventor: Alan Rupert Welch
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Publication number: 20090126199Abstract: The present invention relates to a knife with a novel, improved handle and a sharpening element incorporated within the knife.Type: ApplicationFiled: November 16, 2007Publication date: May 21, 2009Inventor: CHRISTIAN HAMPTON
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Publication number: 20090100683Abstract: A fixed-blade knife with a knife body comprising a blade having a cutting edge and an elongated handle exptending from the blade. A guard is pivotally coupled to the knife body and has a first and second position relative to the knife body. In other embodiments, the guard is slidably disposed along the knife body. In the first position, the guard is positioned adjacent the blade to at least partially cover the cutting edge. In the second position, the guard is positioned adjacent the handle to expose the cutting edge. A sharpening element may be disposed within the guard to hone and/or sharpen the cutting edge when the guard is pivoted relative to the cutting edge.Type: ApplicationFiled: October 19, 2007Publication date: April 23, 2009Inventors: Mathieu Lion, Lucas Bignon
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Patent number: 7390243Abstract: A sharpener to sharpen the edge of a food slicer blade includes a non-planar abrasive surfaced rotatable disk mounted on a supporting structure. The supporting structure includes one or more surfaces designed to align with at least one of a push bar, thickness control plate and the surface of the food carriage of the food slicer when the abrasive surface of the disk is in contact with the edge of the slicer blade.Type: GrantFiled: March 2, 2007Date of Patent: June 24, 2008Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Jeremy J. Lacombe
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Patent number: 7337545Abstract: One exemplary embodiment of the present invention provides a folding knife comprising a blade (1), a blade housing (2) having an interior and an exterior, a folding element (7) connecting the blade (1) to the interior (4-1/4-2) of the blade housing (2), and one or more sharpening elements, e.g., (18-2) connected to the interior (4-1/4-2) of the blade housing (2). In one embodiment, the folding blade 1 comprises a convex side (13-1) with an angled bevel (10-2?/10-2?) and further comprises a hollow ground side (13-2?) with a small raised flat bevel (10-1?), the blade 1 further comprising a sharp edge (11) formed by the intersection of the angled bevel (10-2?/10-2?) and the small raised flat bevel (10-1?). A method of making such folding knife blades is also provided.Type: GrantFiled: October 10, 2003Date of Patent: March 4, 2008Inventors: Richard H. Miltner, Julie L. Adams
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Patent number: 7334339Abstract: In an exemplary sharpening element storage embodiment of the present invention, a sharpening element (5000) may be inserted in a groove (5001) that would be provided in an interior wall (5004) of a knife handle (or knife blade housing) (5005). When the first notch (5002), located in the blade's tongue (5003), in the knife blade (5006) is aligned with the conforming shape of the first end (5008) of the groove (5001), it would be possible to move the sharpening element (5000) in the direction of the opposing handle part (not shown), out from the groove (5001), in order to extract the sharpening element (5000) completely out from the knife handle (5005) for use.Type: GrantFiled: January 27, 2005Date of Patent: February 26, 2008Inventors: Richard H. Miltner, Julie L. Adams
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Patent number: 7175023Abstract: A chisel scabbard (10) comprises a pouch (12) and a belt clip (22). An insert (14) is received in the mouth (16) of the pouch (12) and is adapted to receive various sizes of chisel. A flat front surface (64) is provided with abrasion material to permit sharpening of the chisel. Clips (50) enable two scabbards to be connected together. A sharpener (90) is provided comprising an abrasion plate (110) mounted in a slider (100). The chisel displaces the plate in the slider on insertion of the chisel in the scabbard. The slider can be actuated to repeat the sharpening stroke. The pouch (12) can comprise two extruded sections (92, 94) and end caps (96, 14?).Type: GrantFiled: November 30, 2001Date of Patent: February 13, 2007Assignee: Irwin Industrial Tool CompanyInventor: Graham John Martin
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Patent number: 7107684Abstract: Apparatus, kits, and methods for sharpening electric shavers having rotary and reciprocating-type cutting members are disclosed. A sharpening apparatus in accordance with an exemplary embodiment of the present invention may include an applicator tray or other applicator means, and an abrasive material configured to abrade and sharpen the cutting surfaces of the electric shaver, when actuated.Type: GrantFiled: February 25, 2005Date of Patent: September 19, 2006Assignee: Genuine Genius LLCInventors: James M. Steele, Paul Maire
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Patent number: 6981290Abstract: The present invention provides a scabbard for a combat knife and cutting tool combination. The scabbard generally comprises a body extending along a longitudinal axis between first and second ends, and includes a channel formed therethrough that extends in spaced, parallel to the longitudinal axis, and a cavity that extends along the longitudinal axis. The cutting tool comprises first and second legs pivotally interconnected to one another that extend along longitudinal first and second axes, respectively, with the first leg being removably positionable within the channel of the scabbard, and the second leg being movable relative to the scabbard, but held firmly in position by a releasable strap when the tool is not in use. A combat knife is removably positionable in the cavity of the scabbard.Type: GrantFiled: June 9, 2003Date of Patent: January 3, 2006Assignee: Camillus Cutlery CompanyInventor: Robert Terzuola
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Patent number: 6718639Abstract: A cutter has a blade housing; a blade carrier; and a blade engaged within the blade carrier. The blade housing receives the blade carrier and blade in sliding engagement along a longitudinal direction for retracting and extending the blade forward of the blade housing. The blade carrier is further movable between an upwardly biased position and a downwardly depressed position within the blade housing against a spring biasing element which urges the blade carrier to the upwardly biased position for locking the blade carrier in one of a plurality of slots for fixing the blade at a selected degree of extension. The blade carrier may be partially depressed to disengage the blade carrier from the slots enabling longitudinal motion and may be fully depressed to engage a cutting edge of the blade with a sharpening stone for honing the blade as the blade carrier moves within the housing.Type: GrantFiled: February 19, 2003Date of Patent: April 13, 2004Inventor: Byron John Kazanjian
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Patent number: 6643934Abstract: A self-sharpening pocket knife is provided that includes a housing having abrasive stone strips or other sharpening means, and additional means for biasing the strips inward so that as the stone wears down there is always enough surface area in contact with the blade to sharpen it. The biasing means may take the form of foam rubber which expands, or multiple coiled springs, with either means being positioned between the walls of the housing and the stone strips.Type: GrantFiled: October 1, 2001Date of Patent: November 11, 2003Inventor: Major Harold Pope
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Patent number: 6615494Abstract: A boning and defatting knife includes a blade support unit including a handle, a blade support ring connected to and extending from the handle and a drive shaft mounted on at least one of the handle and the blade support ring. The knife further includes a blade unit having a generally toroidal blade engaging and locking device having a drive means engaging section and a releasable fastening and locking section and a generally toroidal blade having an outer locking edge and an inner cutting edge. The releasable fastening and locking section of the blade engaging and locking device is operative to releasably receive and lock the outer locking edge of the blade thereon, whereby the blade is removable and replaceable and the blade unit is adapted to be removably and rotatably seated on the blade support ring with the drive device engaging the drive device engaging section of the blade unit such that the blade unit is rotated within the blade support ring by the drive device.Type: GrantFiled: January 15, 2002Date of Patent: September 9, 2003Inventors: John W. Long, Dale R. Ross
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Publication number: 20030061714Abstract: A self-sharpening pocket knife is provided that includes a housing having abrasive stone strips or other sharpening means, and additional means for biasing the strips inward so that as the stone wears down there is always enough surface area in contact with the blade to sharpen it. The biasing means may take the form of foam rubber which expands, or multiple coiled springs, with either means being positioned between the walls of the housing and the stone strips.Type: ApplicationFiled: October 1, 2001Publication date: April 3, 2003Inventor: Major Harold Pope
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Patent number: 6371312Abstract: A knife block provided with a blade guide having a clearance through which a blade part of knives is inserted to lead the blade part in a predetermined direction, a holder part to retain the knives engaging the grip part of the knives, a cover part surrounding the circumference of a blade part by forming a holder part on an upper aperture and a base plate on which the cover part uprightly stands with inclination is offered according to the present invention.Type: GrantFiled: June 19, 2000Date of Patent: April 16, 2002Assignee: Master Cutlery CorporationInventor: Minoru Tsuchida
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Patent number: 6161453Abstract: A saw chain sharpener for a chain saw and a chain saw having a sharpener in which the bottom surfaces of the cutting teeth of a conventional bottom sharpened saw chain are conveniently sharpened automatically by running the chain under power through the sharpener. The saw chain can be sharpened using the sharpener in a matter of typically twenty to thirty seconds without removing the chain from the chain bar. The sharpener is preferably adapted to be removably mounted to a bracket which is itself preferably removably disposed on the chain saw. The sharpener comprises a sharpening tooth disposed in a housing which is mounted on the chain bar. A top surface of the sharpening tooth frictionally engages bottom surfaces of the cutting teeth of the chain as the chain is run under power. A device for dispensing a sharpening compound to the sharpening tooth during sharpening may be disposed on the sharpener housing.Type: GrantFiled: January 30, 1998Date of Patent: December 19, 2000Assignee: Chain Masters, Inc.Inventor: Kenneth M. Hensley
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Patent number: 6117002Abstract: A blade sharpener having a sharpening mechanism that functions to sharpen a blade engaging the mechanism and being moved longitudinally relative to that mechanism. The sharpening mechanism is located within a hollow housing or scabbard for containing the blade, and means is provided to restrain the blade against inadvertent removal from the housing. The blade is moved into and out of the housing through a front end of the housing, and the restraining means becomes operative (automatically) when the blade is fully inserted. Locking means then functions to prevent release of the restraining means, and that locking means includes a plate movable in the longitudinal direction of the housing between locking and unlocking positions. The locking means is moved into the unlocking position by actuation of a press button located at the rear end of the housing, and automatically returns to the locking position when pressure is removed from the press button.Type: GrantFiled: December 3, 1999Date of Patent: September 12, 2000Assignee: McPherson's LimitedInventors: Andrew John Stokes, George Ralph Adkins
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Patent number: 5784786Abstract: A blade scabbard including a safety lock which functions to prevent accidental or inadvertent withdrawal of a blade from a fully inserted position within the scabbard housing. The safety lock operates automatically in response to insertion of a blade into the scabbard and is preferably associated with blade sharpening mechanism which is also responsive to movement of a blade into and out of the scabbard housing. The sharpening mechanism is preferably inactive during blade insertion and active during blade withdrawal. Manually operable release means is provided to enable release of the lock for blade withdrawal purposes, and it is necessary to operate the release means while simultaneously withdrawing the blade from the scabbard. The safety lock is fully released after the blade has been withdrawn a distance from the fully inserted position and operation of the release means can then be terminated without hindering further withdrawal of the blade.Type: GrantFiled: April 4, 1997Date of Patent: July 28, 1998Assignee: McPherson's LimitedInventor: David Mark Williams
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Patent number: 5605495Abstract: A knife having removable handle members, wherein each handle member includes a sharpening member. Each sharpening member is carried adjacent the blade of the knife when the handles are attached. Upon removal of the handles, the sharpening members are carried by the handle members and are used in sharpening of the blade.Type: GrantFiled: November 30, 1995Date of Patent: February 25, 1997Inventor: R. B. Jenkins, Jr.
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Patent number: 5594967Abstract: A bayonet system includes a bayonet and a scabbard in which the bayonet is received for storage. The bayonet is formed with an integral blade-and-tang unit. A plastic handle is molded over the tang, with a portion of the tang protruding from a butt end of the handle. A latch plate is attached to the butt end of the handle assembly by a radial rivet to the protruding portion of the tang. The latch plate includes a pair of retainer arms fixed to the latch plate with pins that can be driven out to effect removal of the release arms. The scabbard has a housing with an integral load assembly at its upper end, integral recessed tie-down loops adjacent to its lower end, and an integral hand guard extending from one side at a position intermediate the upper end and the lower end.Type: GrantFiled: January 12, 1995Date of Patent: January 21, 1997Assignee: Buck Knives, Inc.Inventors: Randolph J. Morton, Brett Seber, Curtiss English, Mark DeFelice
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Patent number: 5494176Abstract: A child safe cutlery set holder for an overhead cabinet in a kitchen which comprises a housing and a plurality of sheaths, built into the housing in side by side relationships. Components are for mounting the housing to the underside of the overhead cabinet. Each sheath faces forward to hold a blade of one knife therein with it's handle extending therefrom, so as to keep the knives out of the reach of small children.Type: GrantFiled: June 22, 1994Date of Patent: February 27, 1996Inventor: Silvio Zallo
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Patent number: 5467498Abstract: A self-sharpening type scraping tool having particular utility for scraping surfaces such as to remove paint from walls of a structure, in which the manual actuation of the tool simultaneously effects sharpening of one or more blade edges. A rectangular/square shaped plate is pivotally mounted to a base member and contains a projecting blade on each side of the plate member. Sharpening member is provided for sharpening one or more the blades performed by the tool operator.Type: GrantFiled: October 13, 1993Date of Patent: November 21, 1995Inventors: Joseph P. Keegan, Thomas E. Devlin
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Patent number: 5461785Abstract: A knife has a handle adapted for gripping by a user's hand and an elongated blade mounted to the handle and extending generally longitudinally outwardly therefrom. The blade defines a longitudinal sharpenable cutting edge for cutting through a variety of materials. The handle has a plurality of pairs of bilateral sharpening guide indentations formed on opposite side portions of a forward end of the handle adjacent to opposite sides of the cutting edge of the knife blade. The pairs of guide indentations are formed at respective different angular relationships to the cutting edge of the blade for facilitating the alignment of an elongated sharpening bar at appropriate angles to the cutting edge to correctly sharpen the knife blade.Type: GrantFiled: February 4, 1994Date of Patent: October 31, 1995Inventor: Han Sol Na