Spring Jaw Type Patents (Class 30/338)
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Patent number: 11389981Abstract: A method of manufacturing a blade carrier assembly. A sheet of metal having a thickness of 0.1 mm to 1 mm is provided. The sheet of metal is cut to form a blade carrier blank having a blade platform and a tab extending from the blade platform. The tab is coined to form a crest. At least one window is cut into the sheet of metal. The blade carrier blank is bent along the at least one window to form an upper portion and a lower portion. A blade is mounted to the lower portion. The blade is clamped by bending the upper portion toward the lower portion until the blade is in contact with both the upper portion and the lower portion.Type: GrantFiled: June 19, 2020Date of Patent: July 19, 2022Assignee: The Gillette Company LLCInventor: Jack Anthony Washington
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Patent number: 8739414Abstract: A multi-purpose utility tool which may include an elongated body member configured to slidably house a tool bit mounting device inside of the body member. The body member may be operable to receive the tool bit from within the body member and to expose the tool bit for use outside of the body member. The tool may also include a support device slidably cooperating within the body member. The support device may cooperate with the mounting device for rotatably holding the mounting device within the body member. In addition, the tool may include a locking device which also slidably cooperates within the body member. The locking device may also slidably mate with the support device and lock the support device within the body member at a desired location within the body member.Type: GrantFiled: March 13, 2008Date of Patent: June 3, 2014Assignee: Quirky Inc.Inventor: David Tyers
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Patent number: 8595941Abstract: An assisted-opening knife has a spring tied to a front of a blade carrier and a movable slider assembly within a slot formed through the blade carrier, so that a blade can be rapidly extended by the elastic force without going through stepwise movement. An expanded portion of the slot engaging the slider assembly allows the blade to be received in a holder and ejected only when the slider assembly fully disengages from the expanded portion, thereby generating no sudden ejection of the blade. Additionally, a safety latch securely locks the blade when the blade is fully retracted. When the blade is fully extended, a stopper engages the slider assembly to prevent the blade from being retracted during cutting and stabbing. Accordingly, the assisted-opening knife addresses a solution to rapidly extend the blade for cutting and stabbing without compromising the safety considerations.Type: GrantFiled: October 29, 2010Date of Patent: December 3, 2013Assignee: Taylor Brands, LLCInventor: Ming-Tsan Lee
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Patent number: 8458915Abstract: A blade holder for smoothing and planing off a substrate comprising a handle, a receiving means including a receiving space for a blade, wherein the blade has a larger blade side surface and a narrow side which is at the rear in a cutting direction and which has a cutting edge, and a positioning aid for positioning the blade holder relative to the substrate, wherein the positioning aid includes a spacer device, by means of which the blade can be arranged in a spaced position in the receiving means in such a way that it can be positioned in spaced relationship with the substrate with its cutting edge for processing the substrate. A method and a blade for the blade holder are also provided.Type: GrantFiled: December 18, 2008Date of Patent: June 11, 2013Assignee: Mozart AGInventor: Christoph Wahl
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Patent number: 8356415Abstract: The invention is related to a scraping tool that can be assembled and replaced for scraper blade quickly. The scraping tool in general comprises a stick for hand grasp and a scraping section in the front. The invention mainly uses an arm of suitable length extended from the back end of a jaw clamp toward the middle. It uses fasteners to be located inside the groove in the back of the scraping section. The fastener is also used as pivot for the arm to swing back and forth. On the arm in the back of the jaw clamp, there is a control button that provides vertical pushing force in the back of the jaw clamp and allows strong clamping force in the front of the jaw clamp onto the scraper blade to achieve stable assembly and fast replacement for scraper blade.Type: GrantFiled: December 18, 2009Date of Patent: January 22, 2013Inventor: Wen-Chen Lin
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Patent number: 8327550Abstract: A jigsaw drive shaft is connected to a blade by the blade clamp of the present invention. The blade clamp comprises a clamp body mounted securely to the drive shaft by a bracket. The clamp body has a hollow portion formed to receive an upper portion the jigsaw blade. The clamp body also includes a hollow tubular extension. A cam body is pivotable about an axis through a cylindrical bore such that cam surfaces move in and out of contact with an interior surface of the clamp body to engage or release the blade. A spring biases the cam body into engagement with the clamp body surface. The user must press on a protrusion of the cam body to pivot the cam surfaces way from the clamp surface and against the force of the spring.Type: GrantFiled: January 28, 2011Date of Patent: December 11, 2012Assignee: Black & Decker Inc.Inventor: Mike Wilson
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Publication number: 20120073142Abstract: A cutting apparatus includes a sheath with an entrance, a slot, extrusion and withdrawal recesses, a positioning aperture and a discarding aperture. A handle is pivotally connected to the sheath. A first button is inserted through and movable along the slot between a position where bosses thereof are in the extrusion recesses and another position where the bosses are in the withdrawal recesses. A second button is inserted through the discarding aperture. A carrier is movably located in the sheath and connected to the first button. A jaw is connected to the carrier. Teeth of the jaw are moved out of cutouts of a blade when the jaw is pushed by the second button as the second button is pressed. A cassette can be inserted in the sheath so that a positioning block thereof can be inserted in the positioning aperture.Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Inventor: Min-Zheng Zeng
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Patent number: 8100912Abstract: A surgical sagittal saw with a head that is able to index, rotate, relative to the longitudinal axis of the saw housing. The head has a neck that extends into an open distal end of the housing. A biasing assembly holds the head and neck sub-assembly in the open distal end of the housing. The biasing assembly is rotatable relative to the housing. A separate lock mechanism selectively holds the head in a fixed orientation around the saw housing longitudinal axis.Type: GrantFiled: July 7, 2006Date of Patent: January 24, 2012Assignee: Stryker CorporationInventor: Joe Marietta
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Patent number: 8079395Abstract: A quick change knife blade assembly, for use in conjunction with a tape roll dispensing cartridge assembly of a case sealing machine, comprises a knife blade mounted upon a knife blade mounting plate. A pin plate is fixedly connected to mounting pins passing through the knife blade, and springs are interposed between the pin plate and the mounting plate so as to normally bias the pin plate to a position at which the mounting pins prevent the removal of the knife blade from the mounting plate. When the pin plate is depressed against the biasing forces of the springs, the mounting pins are moved so as to permit the knife blade to be removed from the mounting plate.Type: GrantFiled: February 29, 2008Date of Patent: December 20, 2011Assignee: Illinois Tool Works Inc.Inventors: Bryce J. Fox, William J. Menta
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Publication number: 20110232107Abstract: A saw blade clamping arrangement for a power can include a clamp support base that is operatively coupled for movement with a drive shaft and has a first and a second, saw blade slots. First and second locking members can be operatively associated with the clamp support base and be movable between a locked position that selectively locks the blade in one of the corresponding first and second slots, and an unlocked position that releases the blade. A release member can rotate to cause the first cam surface to urge the first locking member at least partially into the first slot and the second cam surface to concurrently urge the second locking member at least partially into the second slot. In another configuration, the release member can alternatively urge the first or second locking member into the respective slots.Type: ApplicationFiled: March 25, 2010Publication date: September 29, 2011Inventor: Gabriel da Graca
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Publication number: 20110146083Abstract: The invention is related to a scraping tool that can be assembled and replaced for scraper blade quickly. The scraping tool in general comprises a stick for hand grasp and a scraping section in the front. The invention mainly uses an arm of suitable length extended from the back end of a jaw clamp toward the middle. It uses fasteners to be located inside the groove in the back of the scraping section. The fastener is also used as pivot for the arm to swing back and forth. On the arm in the back of the jaw clamp, there is a control button that provides vertical pushing force in the back of the jaw clamp and allows strong clamping force in the front of the jaw clamp onto the scraper blade to achieve stable assembly and fast replacement for scraper blade.Type: ApplicationFiled: December 18, 2009Publication date: June 23, 2011Inventor: Wen-Chen LIN
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Patent number: 7797838Abstract: A retractable blade knife with an opening assisted mechanism has a handle, a blade mounted in the handle, an extending assembly mounted between the blade and the handle. At least one detent formed at a spine edge of the blade. The extending assembly has a positioning frame, a slider mounted beside the positioning frame and attached to the blade and a spring attached to the positioning frame and the slider. The positioning frame has a resilient rod selectively abutting the spine edge and a proximal end of the blade. The blade should be pushed manually a certain distance to allow the spine edge of the blade to push a rear end of the resilient rod outwardly. When the detent of the blade and a lock protrusion of the slider both depart from the resilient rod of the positioning frame, the spring may further pull the slider to move together with the blade to stretch out the blade.Type: GrantFiled: March 18, 2008Date of Patent: September 21, 2010Assignee: Taylor Brands, LLCInventor: Chun-Yu Chu
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Patent number: 7676933Abstract: A spatula having a body with a top working surface and a bottom surface is provided. The spatula body also includes a first end and a second end opposite to the first end. A handle is mounted to the first end of the body and the body has a first mounting member depending from the spatula body proximate the second end of the spatula body. The mounting member has an interior for receiving a mounting portion of the spatula blade and a second open end opposed to the first open end. The spatula body includes an opening in the body for cleaning the mounting member. A blade is provided for the spatula. The blade has a front section having a top surface and a bottom surface. At least a first spring tab extends rearwardly of the front section. The spring tab has a concave surface for one of its top and bottom surfaces.Type: GrantFiled: April 28, 2006Date of Patent: March 16, 2010Assignee: Restaurant Technology, Inc.Inventor: Sang Chun
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Patent number: 7516527Abstract: A repair assembly for the skid plate of a circular saw and its associated method of repair. If a circular saw has a skid plate that is worn to a point where it needs replacement, this repair assembly is used to reinforce the worn skid plate so it can again be used. The repair assembly includes a flat plate structure having a sort extension and a long extension protruding from different sides. The long extension and the short extension mount directly onto the worn skid plate. The flat plate structure therefore covers the wear surfaces of the worn skid plate, therein providing new wear surfaces. The repair assembly attached over the worn skid plate so the worn skid plate does not have to be removed.Type: GrantFiled: July 25, 2005Date of Patent: April 14, 2009Inventor: Edward A. Zuzelo
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Patent number: 7007686Abstract: A repair assembly for the skid plate of a circular saw and its associated method of repair. If a circular saw has a skid plate that is worn to a point where it needs replacement, this repair assembly is used to reinforce the worn skid plate so it can again be used. The repair assembly includes a secondary plate structure having a flat base. The secondary plate structure is mounted directly onto the worn skid plate. The secondary skid plate covers the wear surfaces of the worn skid plate, therein providing new wear surfaces. The repair assembly attached over the worn skid plate so the worn skid plate does not have to be removed.Type: GrantFiled: February 17, 2004Date of Patent: March 7, 2006Inventor: Edward A. Zuzelo
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Patent number: 6862968Abstract: The cutting assembly functions to sever the urethane bed bonding a windshield to a vehicle. The assembly comprises a reciprocating air gun connected with a cutting blade by a shaft. The blade has a straight front cutting edge about 4 inches in width. The blade is reciprocated in and out of the bed to sever it.Type: GrantFiled: August 4, 2000Date of Patent: March 8, 2005Assignee: Crystal Glass Canada Ltd.Inventor: Alfred John Ogston
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Patent number: 6857348Abstract: An arrangement for clamping a saw blade (12) includes a retaining member (6) on which a blade (12) for clamping can be mounted. The retaining member (6) is lockable in at least two positions such that each of the two positions clamps the blade (12) at a predetermined angle relative to a shaft (2) which drives the saw blade (12).Type: GrantFiled: December 15, 1999Date of Patent: February 22, 2005Assignee: Black & Decker Inc.Inventor: Neil Mason
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Publication number: 20040194324Abstract: The present invention relates to a tool head fixer with pressing effect and of wide applications. It mainly comprises a shaft, a rotating socket and a stopping ring, the shaft having a insertion groove in the middle of its front end for inserting a tool head, a pressing bolt with a reposition spring is disposed at the circumference of the shaft, the shaft is inserted and disposed inside the rotating socket and is positioned by the stopping ring, the rotating socket having an acentric groove in corresponding to the pressing bolt, the rotating socket can activate the pressing bolt to press against or relieve the tool head, thus the tool head can be easily and conveniently changed and is firmly fixed, at the same time it is convenient to operate and can be widely used for various applications.Type: ApplicationFiled: February 4, 2004Publication date: October 7, 2004Inventor: Liao Youn-Chyuan
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Patent number: 6722044Abstract: A multiple receptacle blade holder tool including an elongated rectangular cross section main body with one end being rounded and having multiple rectangular receptacles for blades. The blade holder also has top and bottom surfaces parallel to the blade receptacles and a relief channel forming independent legs that clamp one or more blades in the holder.Type: GrantFiled: August 19, 2002Date of Patent: April 20, 2004Inventor: Joseph H. Timidaiski
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Publication number: 20040045167Abstract: A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mechanical bonds that embrace the cover on the housing. The knife includes flexible posts from the cover that project into the blade storage compartment of the housing to prevent internally stored spare blades from moving within the storage compartment. An elastomeric blade clamp integrally formed with the cover serves to restrict lateral movement of blades of varying sizes when installed in a cutting position within the knife assembly. A rear quick release latch and interlocking housing sections provide a convenient way to open and close the knife and assure that it is also secure and firmly held when locked in a safe cutting position.Type: ApplicationFiled: September 11, 2002Publication date: March 11, 2004Inventors: Donald Gringer, Yuan Fang Cheng
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Patent number: 6625888Abstract: A pruning device includes a blade mounting jaw and an opposing jaw. A blade is removably mounted on a blade mounting portion of the blade mounting jaw to cut vegetation positioned between the jaws as the jaws are closed. A blade retainer is movable between a blade retaining and blade releasing positions with respect to the blade mounting portion and has a forward blade engaging portion. In its blade retaining position, the blade retainer secures the blade to the blade mounting portion. A forward edge portion of the blade is received between the forward blade engaging portion and the blade mounting portion. A rearward blade engaging structure and the blade mounting portion support a rearward portion of the blade. In its releasing position, the blade retainer releases the blade for replacement. Grip portions are operatively connected to the jaws to open and close the jaws.Type: GrantFiled: October 2, 2001Date of Patent: September 30, 2003Assignee: Ames True Temper, Inc.Inventors: Edward Heck, Michael McBride, Bryan Ritchie
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Patent number: 6606794Abstract: The inventive nail clippers comprise a two-membered clipper body (2) with a metal fitting (8) placed inside. The metal fitting has a U-shaped spring section (46) that, at the end of each of its legs (48), has bent portions (50) which form the cutting edges (10). The two clipper body members (4,6) also have angled portions (64,66) which encompass the leg ends of the spring section and which meet together opposite to the bent portions (50) that form the cutting edges (10). The angled portions engage with each other in such a way that they fit together, thereby ensuring that the cutting edges are accurately guided when they meet, even when the clipper body is made of plastic and is thus relatively resilient.Type: GrantFiled: April 19, 2000Date of Patent: August 19, 2003Inventor: Udo Rieser
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Patent number: 6532670Abstract: A utility knife has a flat blade formed with at least one throughgoing hole, a housing member forming a seat adapted to receive the blade, and a retainer member engageable with the blade on the seat. A pair of respective pivot elements on the housing and retainer members allow pivoting of the retainer member between a closed position engaging the blade and holding it against the seat and an open position exposing the blade and permitting its removal from the seat. Respective threadedly interengageable holding elements including a threaded screw on one of the members extending through the hole of the blade and a nut on the other of the members secure the retainer member in the closed position. The threaded screw is fixed in the housing member and has a threaded shaft projecting up from the seat. The nut is rotatable on the retainer member. The retainer member is formed with a large-diameter recess receiving the nut with radial play.Type: GrantFiled: November 22, 2000Date of Patent: March 18, 2003Assignee: Martor-Argentax E.H. Beermann KGInventor: Harald Berns
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Patent number: 6357120Abstract: An adjustable safety utility knife includes an elongated ergonomically shaped handle formed of two elongate shell members each having a peripheral edge and an outer generally convex surface and an inner generally concave surface. The shell members are fastened at the peripheral edges along a vertical parting plane to form an elongated internal cavity. The handle defines a front end, a back end and an intermediate portion suitable for being gripped by a user and also defining top and bottom surfaces extending along opposite sides of the shell members along the peripheral edges. The handle has a slot-like aperture at the front end substantially aligned with the parting plane and dimensioned for passage of a flat cutting blade therethrough. A guide element within the elongated cavity guides the cutting blade between a first position for safely storing the blade fully inside the cavity and a second position for selectively extending the blade beyond the aperture to expose at least a portion thereof.Type: GrantFiled: August 14, 1999Date of Patent: March 19, 2002Assignee: Olympia Group, Inc.Inventors: Zareh Khachatoorian, Qui Jian Ping
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Patent number: 6302406Abstract: A connector assembly for connecting a surgical saw blade to a housing of a surgical instrument. The connector assembly allows a surgeon to align, insert and lock the surgical blade in the collet of the surgical instrument without any special tools, and further provides a stable and robust platform for mounting the surgical saw blade thereto. The connector assembly includes a tapered conical shaped sleeve which is positioned within the housing and rotatable in both a clockwise and counter-clock wise direction. A pair of grippers are mounted within the connector assembly and engage the surgical saw blade when the tapered conical shaped gripper sleeve is rotated in a first position. A sternum guard is also mounted to the housing.Type: GrantFiled: January 10, 2000Date of Patent: October 16, 2001Assignee: Microaire Surgical Instruments, Inc.Inventor: Joseph Ventura
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Patent number: 6209208Abstract: A reciprocating tool (e.g., a reciprocating saw) comprising a housing, a spindle mounted for reciprocating movement within the housing and having an end adapted to receive a saw blade, and a blade clamp mechanism connected to the spindle and adapted to attach a saw blade to the spindle. The blade clamp mechanism includes an actuating member mounted on the end of the spindle and capable of moving relative to the spindle between an engaged position and a disengaged position, and a locking member operatively associated with the actuating member and moveable relative to the spindle between a locked position that locks a saw blade to the spindle and an unlocked position that releases the saw blade.Type: GrantFiled: October 9, 1998Date of Patent: April 3, 2001Assignee: Milwaukee Electric Tool CorporarionInventors: Dragomir C. Marinkovich, Roger Dean Neitzell
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Patent number: 6105482Abstract: A clamping device for securing an object includes a body having a block and a pin mounted thereon. The block is movably mounted on the body and preferably may move relative to the body along a line that is oblique to a center line of the body. The block may be in a first position, at which the surface of the block contacts or is adjacent to the pin's perimeter, and a second position, at which a distance between the surface of the block and the pin's perimeter is greater than when said block is in said first position.Type: GrantFiled: February 20, 1998Date of Patent: August 22, 2000Assignee: Delta International Machinery Corp.Inventors: Jaime E. Garcia, Charles J. Baird
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Patent number: 6101726Abstract: A saw blade clamp (1) comprises a body (3) defining a channel (13) for a saw blade (11), a retaining member (17), biasing means (19) for continuously urging the retaining member (17) towards the channel (13) to abut a saw blade (11) in use in the channel (13), and a release device (30) separate from the retaining member (17) and the biasing means (19). When activated the release device (30) acts on the retaining member (17) to move the retaining member (17) away from the channel (13) to allow a saw blade (11) to be entered into or removed from the channel (13).Type: GrantFiled: February 27, 1997Date of Patent: August 15, 2000Assignee: Black & Decker Inc.Inventor: Ray Laverick
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Patent number: 5848474Abstract: A saw blade clamping arrangement particularly for power reciprocating saws and similar tools having a reciprocating drive shaft connected to a cutting member such as a saw blade includes a clamping member movable relative to the drive shaft between a clamped position and a release position. A threaded fastener passes through an aperture formed in a portion of the clamping member and functions to move the clamping member to its clamped position upon selective rotation. A sleeve surrounds the threaded fastener for rotation therewith. When the sleeve is biased against the clamping member through the force of a biasing member, opposing surfaces prevent rotation of the sleeve.Type: GrantFiled: May 23, 1997Date of Patent: December 15, 1998Assignee: Black & Decker Inc.Inventors: Jodi Fortney, Hayden Huang, Kevan Kudo
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Patent number: 5809615Abstract: A handle (10) is described which can be attached by means of a fastening coupling to gardening tools which have a corresponding complementary coupling. Locking is assured in known manner by means of a leaf spring (14), the protuberance (18) of which engages in a locking hole of an inserted tool insertion pin. In order to loosen the coupling, the leaf spring (14) must be lifted out radially. This is done by means of a rocker arm (36) which acts on the free end (20) of the leaf spring (14) and in turn is actuated by axial displacement of a release button (22) which is displaceably mounted in the end of the handle. The restoring of the release button (22) is effected by the radial springing back of the leaf spring (14) which swings the rocker arm (36) back, which arm in turn exerts an axial force on the release button (22).Type: GrantFiled: June 11, 1997Date of Patent: September 22, 1998Assignee: Wolf-Gerate GmbHInventors: Manfred Schneider, Bruno Suck
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Patent number: 5697279Abstract: An apparatus includes a clamping body which includes a lever which bears against a saw blade inserted into the clamping body. A tension spring is connected to the lever and to the clamping body and the tension spring bears against a pin which is slideably mounted in the clamping body. The pin bears against the saw blade and moves the saw blade out of engagement with form-lock projections in the clamping body when the lever is moved to an unlocked position.Type: GrantFiled: June 13, 1996Date of Patent: December 16, 1997Assignee: Metabowerke GmbH & Co.Inventors: Albrecht Schnizler, Manfred Schulz, Jorg Seyerle
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Patent number: 5664792Abstract: This disclosure concerns a tool fixing mechanism including a hollow grip and a resilient clip body. The grip has a front end and a rear end. The front end is formed with a slot, while the rear end is formed with a cross-shaped socket. Two windows are respectively formed on the top and bottom walls of the rear end of the grip. The resilient clip body is located in the cross-shaped socket of the grip. The resilient clip body is formed with two lugs extending out of the windows of the grip. Therefore, if a user depresses the lugs, the resilient clip body is closed or stretched open so as to fixedly latch or release a tool inserted in the slot of the front end of the grip.Type: GrantFiled: August 7, 1996Date of Patent: September 9, 1997Inventor: Hans Tseng
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Patent number: 5647133Abstract: A saw blade clamping arrangement particularly for power reciprocating saws and similar tools having a reciprocating shaft connected to a cutting member includes a biasing member preferably in the form of a spring clamp member. The biasing member is interconnected with the drive shaft and operative for providing a biasing force to retain the cutting member in operative connection with the drive shaft. A release lever is pivotally mounted to a housing of the saw for movement between first and second stable position. In the first position the release lever is spaced apart from the biasing member. In the second position the release lever engages the biasing member and opposes the biasing force of the biasing member to permit quick and easy removal and replacement of the saw blade.Type: GrantFiled: June 9, 1995Date of Patent: July 15, 1997Assignee: Black & Decker Inc.Inventor: Stephen C. Dassoulas
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Patent number: 5386637Abstract: A blade holder for a manual cutting tool having a rigid open-ended frame shaped to provide support for a blade between the ends of the frame so that the cutting edge of the blade is proud of the ends of the frame, a clamp pivotally mounted on the frame, and a spring mounted on the frame and acting on the clamp. The clamp is moveable between an open position and a closed position. Manual pressure on the clamp against the spring forces the clamp apart from the ends of the frame to leave a gap (the open position) for the insertion or removal of a blade. Release of the manual pressure results in the spring holding the clamp against the ends of the frame (the closed position) so as to provide for retention of the blade in position between the clamp and the frame during a cutting operation.Type: GrantFiled: October 21, 1993Date of Patent: February 7, 1995Assignee: Ciba-Geigy CorporationInventors: Lawrence C. Saddoo, Robert M. Williams
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Patent number: 5331739Abstract: Disposable nail cutting nippers including a body member having a one piece construction to provide first and second gripping portions pivoted about a front hinge portion to be adjacent to each other, and a removable cutting member having cutting blades disposed at the front end portions of the gripping portions. A spring hinge is disposed between the rear end portions of the gripping portions to tension the gripping portions into an open position so that the cutting blades are spaced apart, the gripping portions being squeezed together against the tension of the spring hinge to place the cutting blades in a closed cutting position. Ridges are provided transversely around a periphery of matching central portions of the gripping portions to facilitate the gripping of the body member. A slot is provided in the front hinge portion to removably receive the cutting member therein. The spring hinge includes a tab member having a centrally located, transverse bend therein.Type: GrantFiled: March 20, 1992Date of Patent: July 26, 1994Inventor: Lea Basangy
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Patent number: 5322302Abstract: The invention relates to a device for mounting a saw-blade provided with an opening to a carrier which is connected to a drive device to make a reciprocating movement, wherein the device comprises: a wall extending in the direction of movement which is suitable for contact with a side of the saw-blade; a mounting body which is rotatable opposite the wall around a shaft extending perpendicularly of the direction of movement and parallel to the wall and which is provided with a protrusion which is movable into the opening arranged in the saw-blade; and urging means for urging the mounting body to a mounting position wherein the protrusion extends into the opening arranged in the saw-blade. Mounting takes place because via the sphere the saw-blade generates a moment in clockwise direction relative to the shaft. This moment is counteracted by a moment that is generated by the friction between the actuating rod and the contact surface.Type: GrantFiled: July 28, 1993Date of Patent: June 21, 1994Assignee: Skil Europe B.V.Inventor: Antonius J. J. Quirijnen
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Patent number: 5279035Abstract: A kitchen utensil for fruits, vegetables and the like, including a tool having a head portion for engaging a fruit, a vegetable and the like, a handle for gripping the tool, and a flexible portion disposed between the head portion and the handle portion for permitting the head portion to pivot relative to the handle. The flexible portion includes a serpentine section having one end thereof integrally connected to the handle, and an opposite end thereof integrally connected to the head portion to provide a one piece integral construction. The serpentine section provides a series of loops, where wedge-shaped reinforcement members are transversely disposed between the loops to maintain the loops in the serpentine configuration. A flexible web portion is provided in each of the loops to maintain the loop configuration thereof while permitting expansion and contraction of the loops under pressure.Type: GrantFiled: December 28, 1992Date of Patent: January 18, 1994Assignee: Lifetime Hoan CorporationInventors: Milton L. Cohen, Jeff Siegel
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Patent number: 5186091Abstract: A plurality of slitting devices for rolls of sheeting can be clipped onto a dispensing carton so that the sheeting is readily slit to width as it is drawn from the carton. The devices are folded from single flat steel units so as to guard the edges of blades securely when not in use.Type: GrantFiled: May 6, 1991Date of Patent: February 16, 1993Inventor: Michael Wolf
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Patent number: 5133133Abstract: A holder for reusing a used microtome blade, in which the front end portion of a holder body is cut through along a plane extending through the longitudinal axis of the holder body so as to form bifurcated half parts defining a slit for receiving a used microtome blade. An inclined through-bore is formed in the front front end portion, extending in the same plane so as to terminate the slit, one of the corners of the inserted end part of the microtome blade bears against the innermost part of the wall surface of the inclined throughbore and is clamped between the bifurcated half parts by a clamping member.Type: GrantFiled: December 13, 1991Date of Patent: July 28, 1992Assignee: Kabushiki Kaisha Chiba MedikaruInventor: Tutomu Chiba
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Patent number: 5084978Abstract: A dental tool with detachable saw blades and adhesively affixed abrasive strips on the distal ends of a U shaped handle for removing the solified resin in posterior and anterior teeth during the placement of porcelain and composite inlays while keeping the tongue and cheek away from the cutting surfaces. The primary function of the tool is provided by a finger rest to direct the tool force in a gingival direction with stability and control improving the function and safety of the tool.Type: GrantFiled: September 19, 1990Date of Patent: February 4, 1992Inventor: William D. McReynolds
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Patent number: 5055106Abstract: A scalpel comprises a shank having a holder for releasably mounting a surgical blade. A ball of plastic material is formed by injection molding on the blade proper which consists of metal. The holder includes a sleeve, which is threadedly engaged with the shank at one end thereof and adapted to be screwed axially along the shank. The sleeve forms a ball socket, which is adapted to receive the ball of the blade therein. A clamping rod extends axially within the socket between the shank and the ball to engage and disengage said ball by the sleeve being screwed on the shank. The end of the clamping rod, which is adjacent to the ball, forms a circular sharp edge of a diameter which is substantially smaller than the diameter of the ball, thus cutting into the plastic material of the ball when the sleeve is screwed to engage the clamping rod with said ball.Type: GrantFiled: September 7, 1990Date of Patent: October 8, 1991Inventor: Dan Lundgren
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Patent number: 4920644Abstract: The straight razor has a handle portion and a pivotable blade holder with a razor blade permanently and rigidly attached to the handle portion. The handle portion and the blade holder are made of economical easily used materials so that the straight razor is at least partially disposable. In one embodiment the blade holder is pivotally permanently mounted on a connecting pin joining two opposing parallel handle panels of the handle and the entire straight razor is disposable, while in another embodiment the shank portion of the blade holder has a recess in which the connecting pin is engagable so that only the blade holder and razor blade are disposable.Type: GrantFiled: March 30, 1989Date of Patent: May 1, 1990Inventor: Milton LaGattuta
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Patent number: 4844070Abstract: A scalpel is provided including a chuck shaft having a diametric slot at its front end into which the rear end of a blade is inserted. The blade is provided with a cylindrical collar intermediate its ends which abuts against the front end of the chuck shaft. Over the blade and integral collar is threadedly mounted a retaining sleeve which engages with the exterior surface of the chuck shaft. As the retaining sleeve is threaded onto the chuck shaft, it radially compresses the front end of the chuck shaft so that the surfaces of the slot engage firmly and securely with the rear end of the blade, having previously been inserted therein.Type: GrantFiled: October 2, 1987Date of Patent: July 4, 1989Inventor: Robert N. Dee
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Patent number: 4604802Abstract: The squeegee blade trimmer of the present invention includes a pair of back to back C-channels having mounted along one side thereof a pair of shear bars, along with a pair of parallel extending tracks. The C-channels are hinged together on their opposite side and a press clamp mechanism is provided for selectively drawing the channels together. A blade holder is provided with a pair of runners for running along the tracks such that a worn, flexible squeegee blade may be placed between the shear bars and the blade holder run along the tracks causing a laterally extending blade edge to sever a worn edge of the squeegee blade from the body of the squeegee thus leaving a fresh, clean straight edge.Type: GrantFiled: October 22, 1984Date of Patent: August 12, 1986Inventor: Soren Samuelsson
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Patent number: 4575940Abstract: A carpet layers knife made for easy replacement of a replaceable blade which includes a blade holding portion and a handle portion; the blade holding portion provided with an internal shoulder to guide the blade into and out of the knife without dulling the blade, and a connecting element holding the elements of the knife together, the connecting element being positioned to be out of the path of the blade as it is inserted and retracted but capable of holding the blade firmly in its tightened position while providing a passageway for insertion and removal of the blade in its loosened position.Type: GrantFiled: March 13, 1985Date of Patent: March 18, 1986Inventor: Michael D. Wenzel
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Patent number: 4534348Abstract: The invention generally relates to medicine, but more particularly, to an strument for making corneal incisions useful, for example, in the surgical treatment of myopia.The instrument disclosed herein includes a case, a holder of a cutting member being mounted within the case for reciprocation relative thereto. The holder is provided with a lock member for a cutting member at one end thereof, its opposite end accommodating a stem engaging a screwnut type drive urging said holder into motion. A stop is mounted on the case anteriorly relative to said holder. According to the invention, the portion of the holder facing the stop which is rectangular in cross-section, is preferably provided with a rectangularly fashioned groove along with a lever clip mounted therein, to secure the cutting member in position.Type: GrantFiled: January 10, 1983Date of Patent: August 13, 1985Assignee: Moskovsky Nauchno-Issledovatelsky Institut Mirrokhirurgii GlazaInventors: Svyatoslav N. Fedorov, Evgeny I. Degtev, Vladimir N. Golubev, Sergei V. Khromov, Igor A. Yatsenko, Alexandr A. Karavaev, Vladimir M. Yakushev
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Patent number: 4499898Abstract: Surgical knife with controllably extendable blade, the blade retained by a blade holder extending through an axial opening in the knife body and connected with a member threadedly retained within the knife body for axial adjustment and also connected to an adjustment knob at the rear end of the knife. Another feature of the knife is a foot configuration which facilitates precise use and control of the knife. Preferably the invention also comprises the knife, as disclosed, in combination with a gauge for visually inspecting blade projection, the gauge indicator consisting of a pair of eccentric circles or portions thereof, the blade projection being measured by comparison with the radial distance between the two circles.Type: GrantFiled: August 23, 1982Date of Patent: February 19, 1985Assignee: KOI AssociatesInventors: William R. Knepshield, David D. Ogletree, Nat Sander
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Patent number: 4389778Abstract: The invention relates to a device for a knife handle (3, 4) which is provided with a detachable knife blade (1). Fitted in the knife handle (3, 4) are spring members (6, 7) which engage securely with hooks (8, 9) in holes (10, 11) in the knife blade (1). The device according to the invention constitutes an easily handled release mechanism for the knife blade (1) and at the same time is so situated and constructed that it minimized the risk of accidental release of the knife blade. For this purpose, the device is distinguished by a control member (13) which is mounted at the opposite end of the handle (3, 4) to the knife blade (1) and is displaceable in the direction towards and away from the knife blade in the longitudinal direction thereof.Type: GrantFiled: December 17, 1980Date of Patent: June 28, 1983Assignee: Aktiebolaget MetkaInventor: William Hakansson
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Patent number: 4358893Abstract: A tire trimmer tool has an elongated handle and a U-shaped frame to which a blade of undulated sheet metal is detachably mounted. The undulations comprise closely-spaced parallel ridges which extend front and rear, are open on their underside and are united by narrow connecting webs. The undulations are arranged across the full width of the blade; and the outermost undulations which comprise the two sides of the blade have upturned walls, the edge of which seat is facing slots provided the legs of the U-frame; and an adjustable clamp which connects the two legs secures the blade in place. The fore end of the blade is sharpened on its underside and a narrow transverse portion of the blade therebehind is struck or turned upwardly across the full width of the blade and limits bowing of the blade in response to tightening of the clamp.Type: GrantFiled: April 20, 1981Date of Patent: November 16, 1982Assignee: B & J Manufacturing CompanyInventor: Charles K. Stanfield
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Patent number: 4180909Abstract: A knife comprises a tension rod insertable into an opening extending through a handle, and a bolt at one end of the handle and in threaded engagement with the tension rod for retaining a replaceable blade at the other end of the handle. The tension rod comprises two elongate parallel rod portions of rigid material, one of which is provided with pins engageable with holes in the blade for retaining the blade between adjacent ends of the rod portions. These ends of the rod portions are formed with at least one wedge surface for co-operation with a corresponding wedge surface on the handle. This knife construction facilitates cleaning, requires few parts and enables the blade and the tension rod to be readily withdrawn from the handle.Type: GrantFiled: March 14, 1978Date of Patent: January 1, 1980Inventor: Anders Lind