Having Replaceable Striking Face Patents (Class 81/25)
  • Patent number: 10549416
    Abstract: A guide for a fastener hand tool is disclosed including a truck having slidable engagement with a track affixed to the fastener hand tool. The slidable engagement comprises mated interlocking geometries between the truck and the track. A clamping mechanism is disposed on the truck for temporarily clamping opposing sides of the truck to the track at a desired position along the track and a contact piece having a non-marring, wear resistant surface is affixed to the truck. The contact piece is disposed for referencing against a guiding edge for a workpiece relative to the fastener delivery point. The truck can comprise a symmetrical shape such that the truck can be alternately engaged to the track with the clamping mechanism on a left side of the fastener hand tool or with the clamping mechanism on a right side of the fastener hand tool.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: February 4, 2020
    Inventor: Paul E. Fiala
  • Patent number: 9121421
    Abstract: An interface for releasably coupling an extension and a support includes a plurality of tenons extending beyond respective mating edges of the support and the extension to form at least one slot between the tenons and a plurality of bearings to react to loading of the extension. Each bearing has at least one degree of freedom. The one degree of freedom may be a rotational degree of freedom.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: September 1, 2015
    Assignee: ELEKTA AB (PUBL)
    Inventors: Dietmar Huggler, Thomas Pfitzmaier
  • Patent number: 9003643
    Abstract: Certain embodiments of the invention may include systems for providing stator bar shape tooling. According to an example embodiment of the invention, a system for shaping an element is provided. The system includes tooling that having at least one constraining surface that is fabricated at least in part by selective laser sintering, where the at least one constraining surface includes at least one curved element section to facilitate bending of at least a portion of an element around the at least one curved element section.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Caleb James Munholand, Mark Stephen Clough, Mark Kent Shoemaker, David John Wardell
  • Publication number: 20150059529
    Abstract: A safety hammer (1) for breaking glass, comprises a housing (2) comprising at least two shell parts (2a, 2b); a hammer head (3) having at least one end (4) for breaking the glass, wherein the hammer head (3) is at least partly enclosed by the shell parts (2a, 2b) such that the at least one end (4) of the hammer head (3) extends outside the housing (2); wherein the hammer head (3) is arranged for cooperation with the shell parts (2a, 2b) for fastening the shell parts (2a, 2b) via the hammer head (3). A safety tool holder comprises a base holder element and at least one intermediate holder element arranged for removable coupling to the base holder element at one end and for removable coupling to a safety tool at another end; wherein the intermediate holder element is provided with a single connecting element for removable connection to the safety tool.
    Type: Application
    Filed: February 27, 2013
    Publication date: March 5, 2015
    Inventor: Johannes Baptist Martinus Franken
  • Publication number: 20140366688
    Abstract: A multifunctional tool with interchangeable tips includes a handle, a cover, at least one interchangeable tip and at least one removable securing means. The interchangeable tip is clamped at various points between the cover and the handle because the cavities of the handle and of the cover are not surfaces of revolution, whereas the diametrical recess of the interchangeable tip is a surface of revolution. The teeth of the handle engage the teeth of the cover, the parallel faces of said teeth meshing axially with respect to the tips preventing the cover from sliding off the handle. At least one removable securing means firmly secures the interchangeable tips and the cover to the handle.
    Type: Application
    Filed: January 30, 2013
    Publication date: December 18, 2014
    Inventors: Isidro Bocanegra Marquina, Daniel Bocanegra García, Jorge Bocanegra García
  • Publication number: 20140352498
    Abstract: A hammer includes a handle, a head portion, and a striking mechanism. The head portion is connected with the handle and includes a metal strike element and a resilient strike element. A receiving space is defined between the two strike elements. The striking mechanism is located in the receiving space and includes a slide axle and a striking member. The striking member has a through hole for being slidably sleeved onto the slide axle. The striking member is slidable in the receiving space to alternatively strike one end of the head portion. Thereby, inertia striking force is provided by the striking member so that the hammer can be used to strike an object more easily.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventors: Ying-Chieh LIAO, Yu-Kuo Liao
  • Publication number: 20140238201
    Abstract: A lightweight, strong hammer. A hollow lightweight aluminum handle is connected to a hammer head. A spring face piece is removably attached to said hammer head. In a preferred embodiment, the spring face piece has a spring face that is welded to a hollow threaded hammer poll. In one preferred embodiment, the hollow lightweight aluminum handle has a contoured shape. In another preferred embodiment the hollow lightweight aluminum handle has a straight shape.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 28, 2014
    Inventor: Gary Pimentel
  • Publication number: 20140216210
    Abstract: A striking device comprising a striking head, an elongate handle comprising a first end and an opposed second end. The striking head is affixed to the first end while the second end has a hand grip which facilitates gripping of the handle by an operator of the striking device. The handle accommodates a sliding weight which is movable, due to a swinging motion of the striking device, from the first end of the handle toward the second end of the handle to increase an impact force of the striking head as the striking head strikes an object to be struck.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Inventor: Timothy J. NEAR
  • Publication number: 20140053342
    Abstract: A forming and framing hammer comprises an elongate handle and a head fixed to the top end of the handle. The head has three striking surfaces: two on a striking body and one on the side of the head. The third striking surface is cushioned by a neoprene bushing to reduce vibration in the handle of the hammer. The head has two pulling tools for pulling nails. The bottom of the handle accepts interchangeable tools.
    Type: Application
    Filed: November 14, 2012
    Publication date: February 27, 2014
    Inventor: LES BRONEE
  • Patent number: 8495929
    Abstract: A tool for applying a bending or impact load to one or more conductors in a dynamoelectric machine is provided. The tool includes an elongate, substantially tubular handle having an opening at a first end, a second end opposed to the first end, and the handle has a handle axis. A head is connected to the second end of the handle, and includes a striking surface for applying impact loads, and an interchangeable tool socket located opposite to the striking surface. The head has a head axis oriented orthogonal to the handle axis. The interchangeable tool socket can accept one of a plurality of tool inserts and the tool inserts may be rotated generally around the head axis and locked in at least one position within the interchangeable tool socket so that the angle of each tool insert can be adjusted to user preferences.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: July 30, 2013
    Assignee: General Electric Company
    Inventors: Brock M. Lape, Jeffrey D. Evans
  • Patent number: 8438953
    Abstract: A hammering tool with buffer design includes: a hammering member, a protrusion block section extending from a lower side of the hammering member, a right side of upper section of the protrusion block section being notched to form a first receiving space; a handle member having a grip section, a first plate section, a second plate section and a third plate section being disposed at an upper end of the grip section to define a receiving chamber for inserting the protrusion block section therein; a pivot member for pivotally connecting the protrusion block section of the hammering member with the handle member; and a buffer assembly including a first compression spring received in the first receiving space. A right end face of the protrusion block section of the hammering member is spaced from a left face of the first plate section by a predetermined buffering distance.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: May 14, 2013
    Inventor: Kuan-Wei Chen
  • Patent number: 8387487
    Abstract: A tactical entry tool for creating an entry point through a building structure is provided. The tool includes a shaft portion including a shaft, and a head portion attached to a first end of the shaft. The head portion includes two heads, with each head including a head shaft extending from the shaft to form a ‘Y’ shaped structure and a break head portion attached to the head shaft at an opposite end from which the head shaft is connected to the shaft. Each break head portion includes a plurality of teeth surrounding the perimeter of the break head portion and a plurality of breaker tips extending from the break head portion.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 5, 2013
    Assignee: J&N Tactical, LLC
    Inventors: Jeffrey Herr, Matt Herr
  • Patent number: 8132486
    Abstract: A pneumatic power screw gun with a reinforced hammer head, has a reinforced base end above the handle with a cradle mounted thereon, the cradle being adapted to receive and secure a hammer head in place as desired.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: March 13, 2012
    Inventor: Norman D. Calvert
  • Publication number: 20110314970
    Abstract: A hammer with a titanium alloy striking face includes a main body and a striking face. The striking face is made of ? titanium alloy having a hardness above HRC 45. The main body is made of a metallic material, which is A164 titanium alloy, steel, or stainless steel. The hammer composed of the main body and the striking face complies with the standard of ASME.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 29, 2011
    Inventor: Yung-Shou Chen
  • Patent number: 8080015
    Abstract: An impacting device for inserting, positioning and/or removing an implant and/or performing other impacting applications. The impacting device may have a head having at least one recess. The recess may have a insertion channel and a locking chamber. In one embodiment, the insertion channel and the locking chamber may be connected by an axial channel. The recess may pass through a lateral surface of the head so that the base surface may remain cohesive or unobstructed. A guide means, such as a guide rod, may be positioned though the recess so that the head may be moveable on the guide means and not disengage the guide means. A shaft having a handle may be attached to the head to assist a surgeon in moving the head on the guide means.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: December 20, 2011
    Assignee: Synthes USA, LLC
    Inventors: Markus Büttler, Patrick Streff
  • Patent number: 7862408
    Abstract: A meat tenderizer with disposable face plates requires that a fresh face plate be chosen for each use to prevent cross contamination from one use of the tenderizer to the next. The table or tables of the tenderizer head are flat and accept the face plates which may have a flat tenderizing surface or any of several textured tenderizing surfaces. The face plates are intended for a single use. Once used a face plate is discarded. The user selects the appropriate face plate for the task at hand, attaches it to the tenderizer and removes and discards it after use. Since a clean unused face plate is selected for each use, the tenderizer does not have to be washed between uses thereby saving time for the chef and providing a sanitary tenderizing surface for contact with the meat.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: January 4, 2011
    Inventor: Cori Weinstein
  • Publication number: 20090229420
    Abstract: The invention herein called MalletHead Pro 3 consists of three (3) compression molded Styrene Butadiene Rubber heads designed to be placed over and cap the face, poll and neck of any hammer having a face striking size of no greater than three and one half centimeters (3.5) and having a face striking size of no less than two and one half centimeters (2.5), consequently converting the striking tool (hammer) into a soft impact tool. The three (3) rubber heads herein called MalletHead are of identical shape, size, and materials as shown in FIG. 1 attached hereto to this application. The three heads (3) differ in (a) colour, and (b) durometer. This invention may be used were any soft impact tool is warranted or required. This invention eliminates the need in many applications for the use, storage of a rubber mallet or any other soft impact tool. This invention utilizes the hammer, including ball peen, claw or rip designs into a multi-use soft impact tool.
    Type: Application
    Filed: August 5, 2008
    Publication date: September 17, 2009
    Inventor: Gordon Clelland Cobb
  • Patent number: 7467572
    Abstract: A hammer equipped with a mallet attachment and a measuring scale. The mallet attachment includes a surface cap for covering the striking surface of the hammer such that the hammer is visible as a mallet which provides a resilient surface. A surface cap holder stores the surface cap when using the hammer. The measuring scale is located on a grip which surrounds a hammer shank. The hammer functions as both a hammer and a mallet.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: December 23, 2008
    Assignee: The Faucet Queens, Inc.
    Inventors: Kathleen Fisher, Jeffrey A. DeBoer, Michael Nellenbach
  • Patent number: 7168338
    Abstract: A composite hammer comprising a head having a periphery and a longitudinal axis, a collar disposed substantially about the periphery and having an inner surface and a neck tube projecting radially outwardly therefrom, the neck tube being inclined relative to the longitudinal axis, and a handle having a proximal working end received in the neck tube and a distal end.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: January 30, 2007
    Assignee: Snap-on Incorporated
    Inventors: Richard L. Hopper, Jr., Thomas Whalen
  • Patent number: 7134363
    Abstract: Deadblow hammers capable of minimizing or eliminating recoils when the hammers impact their targets are discussed which have easy access anti-recoil chambers and which have open sockets for receiving handles that extend the length of the hammerhead body. These hammers incorporate filler materials, which function to negate the effects of the hammer recoils, with improved filling port(s) for filling the filler materials. Golf clubs with anti-recoil chamber and insert elements are also discussed.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: November 14, 2006
    Inventor: Anthony Krallman
  • Patent number: 7107874
    Abstract: A hammer having a coupling rod extended from a neck at one end of the hammer body of the hammer, a bell detachably attached to the coupling rod, a rubber socket mounted in a transverse through hole of the bell and a transverse through hole of the coupling rod to accommodate a stud nut, and a screw threaded into the stud nut to affix the socket and the bell to the coupling rod of the hammer body.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: September 19, 2006
    Inventor: Yung-Shou Chen
  • Patent number: 6928899
    Abstract: A striking head-interchangeable hammer includes a handle, a head body connected securely to the handle and formed with a through-hole and upper and lower bores, a striking body having a connecting portion that is received fittingly in the lower bore, and a stress-distributable fastener including a connecting rod that extends through the through-hole and the upper and lower bores in the head body to engage threadedly the striking body, and that is formed with an abutting flange received fittingly in the upper bore and anchored on and abutting against an abutting face of a bore-defining wall of the upper bore upon tightening of the connecting rod onto the striking body.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: August 16, 2005
    Inventor: Ming-Hsuan Lin
  • Patent number: 6862765
    Abstract: A tool includes a tool bit, a handle and a locking device. The tool bit includes a working head formed at an end, an insert formed at an opposite end and at least one annular groove defined in the insert. The handle includes a grip formed at an end, a socket defining a cavity for receiving the insert of the tool bit and a joint via which the socket is connected with an opposite end of the handle. The locking device can lock the insert of the tool bit in a releasable manner. The locking device includes a tunnel defined in the joint so that an axis of the tunnel is parallel to that of the cavity. A latch defines at least one notch. The latch is movable in the tunnel between a locking position and a releasing position. The locking device includes at least one truncated conical hole through which the cavity is communicated with the tunnel. The at least one truncated conical hole includes a first end at the cavity and a second end at the tunnel.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: March 8, 2005
    Inventor: Mou-Tang Liou
  • Patent number: 6701805
    Abstract: A stone hammer having a weighted head has detachably rotatable and reversible faceplates defining striking edges on opposite ends of the head. The edges of the faceplates define cutting edges for trimming stone and the like. As a striking edge becomes worn, another striking edge can be selected by repositioning the faceplate. A striking edge may be selected by rotating a faceplate, individually reversing a faceplate, replacing a faceplate, striking with an opposing end or different edge of the hammer, or any combination thereof. In one embodiment, the faceplates are attached by a symmetrical pattern of bolts disposed in the faceplates. A worn striking edge is replaced by unbolting the faceplate and either flipping the faceplate over, or replacing the worn faceplate with a new faceplate having fresh, sharp edges.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: March 9, 2004
    Inventors: Richard B. Souder, William E. Baum
  • Patent number: 6655236
    Abstract: A hammer device with interchangeable head members for providing one hammer which can be used to perform multiple functions. The hammer device with interchangeable head members includes a hammer assembly including an elongate handle member and a head member being attached to a top of the handle member; and also includes a plurality of striking members being removably attached to the head member of the hammer assembly; and further includes a plurality of washers being stored in the handle member and being removably mounted to the head member of the hammer assembly.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: December 2, 2003
    Inventors: Terry J. Slack, Tom R. Slack
  • Patent number: 6564681
    Abstract: A nail set holder holds a nail set, which is a punch, to drive nails into boards. The holder includes a hollow head with a sleeve therein for insertion of the nail set therein. The nail set is secured in place by fasteners, such as set screws. The handle is hollow, for enclosing alternate sized nail sets. It is proposed that the sleeve be large enough for larger nail sets, and the thinner ones can be held in place by setting the set screws in further, or by an auxiliary sleeve. Options also include a foam or rubber textured gripping surface on the handle body, and a shock absorber or caulking at the removable cap end to prevent loosening of the cap during vibrations of use.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: May 20, 2003
    Inventor: Leigh H. Coulter
  • Patent number: 6539824
    Abstract: A chipping hammer for removing oxidation and slag from a welding bead, usually an arc welding bead, wherein the hammer includes a long lasting narrow replaceable chipping point economically formed by a hardened nail. Easily operated attachment means removably maintain the point on the hammer head.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 1, 2003
    Inventor: Charles D. Wedhorn
  • Publication number: 20020174747
    Abstract: A chipping hammer for removing oxidation and slag from a welding bead, usually an arc welding bead, wherein the hammer includes a long lasting narrow replaceable chipping point economically formed by a hardened nail. Easily operated attachment means removably maintain the point on the hammer head.
    Type: Application
    Filed: May 24, 2001
    Publication date: November 28, 2002
    Inventor: Charles D. Wedhorn
  • Patent number: 6463832
    Abstract: A hammer having a hammer head and a cap removably slidably fitted to the hammer head. A biasable pad for absorbing shock is positioned between the cap and the hammer head. A cross-pin connects the cap and hammer head while permitting slidable movement therebetween.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: October 15, 2002
    Assignee: Vaughan & Bushnell Manufacturing Company
    Inventor: Michael L. Cox
  • Patent number: 6457384
    Abstract: Retaining means for holding a fastening cross-pin that holds a removable cap mounted to a pole of a hammer thus providing a selected type of cap impact face for the hammer head. The cap forms a chamber and the pole is removably slidably fitted into the pole chamber. The fastening cross-pin is removably positioned in cap pin holes in the cap cylindrical wall and to a pole pin hole so as to removably secure the cap to the pole and also so as to allow the pole to move relative to the cap in the longitudinal dimension between an impact mode position of the cap impact face against a workpiece and a static mode position of the cap impact face remote from the workpiece. A biasable pad for absorbing shock is positioned within the chamber formed in the cap between the cap impact face and the pole. The fastening cross-pin extends through the pole pin hole and is connected to the cap side walls.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: October 1, 2002
    Assignee: Vaughan & Bushnell Manufacturing Company
    Inventors: Michael L. Cox, Ted Jerominski
  • Patent number: 6347562
    Abstract: A new and improved multi-function hand tool with multiple purpose interchangeable utility heads is provided. This multi-function hand tool with multiple purpose interchangeable utility heads would have a utility head block with two utility head accepting portions providing for maximum versatility and result in a compact tool for convenient transportation and storage. The utility head block is solid to better absorb force upon impact, maintain design integrity and provide for proper weighting of the tool when used as a hammering or striking tool. The attachment mechanisms are designed to maintain integrity and optimum safety, even after consecutive, frequent usage. The utility head block is also designed to safely accommodate different hammer handles for various usage demands or if handles become damaged, thus extending the usable life of the tool.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: February 19, 2002
    Inventor: George R. Gerber, Jr.
  • Patent number: 6023997
    Abstract: A straight line impact device is provided having a central grasping portion having finger and thumb indentations for either hand and being narrower than enlarged impact end areas having impact heads to thus provide a positive grip for a hand grasping the central area while also shielding the hand from slippage and missed impact on the impact areas. The enlarged portion is formed as a hexagon to prevent the rolling of the device and has replaceable impact heads of differing materials.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: February 15, 2000
    Inventors: Dane M. Willis, Raymond Anzlovar
  • Patent number: 6016722
    Abstract: A shock-absorbing claw hammer includes a handle, a claw and a striking head. Vibrations and shock in the handle and head, as well as recoil, caused by the striking head striking an object are at least partially reduced by shock-absorbing means.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: January 25, 2000
    Assignee: Emerson Electric Co.
    Inventors: Joseph T. Gierer, David L. Pringle
  • Patent number: 5996442
    Abstract: A process for releasably attaching a tool handle to a tool head includes the steps of (1) inserting an end of the tool handle into the tool head through a tool head aperture, (2) turning the end of the tool handle relative to the tool head to engage a pair of lands therein which prevent withdrawal of the end of the tool handle from the tool head, and (3) threading a nut onto the tool handle so as to engage a portion of the tool head adjacent to the aperture. The process is accomplished by providing the handle a connecting stud at one end thereof, wherein the connecting stud includes a pair of oppositely disposed flanges which extend generally perpendicularly outwardly therefrom. The tool head has a central cavity into which the connecting stud is inserted through the aperture. The pair of lands are capable of selectively engaging the connecting stud flanges to prevent withdrawal of the connecting stud from the tool head.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: December 7, 1999
    Inventor: Joseph Allen Carmien
  • Patent number: 5546832
    Abstract: The invention provides a striking apparatus having an interchangeable head. The apparatus includes a handle having a distal end, a proximal end, and an axial lumen extending therebetween. The handle is removably connected to the head at its distal end by a bolt extending through the lumen and into the head. An extension is removably held at the proximal end of the handle. The extension has an aperture for receiving a head of the bolt.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: August 20, 1996
    Inventor: Kevin P. Townsend
  • Patent number: 5526719
    Abstract: A hammer including a handle, a base frame at one end of the handle, two hollow holder frames at two opposite ends of the base frame, two U-shaped spring plates respectively mounted inside the holder frames, and two tool elements, which can be bells, claws, hatchet blades, etc., respectively coupled to the holder frames and secured in place by the U-shaped spring plates, and two pairs of control bolts moved in holes on the holder frames and depressed to release the U-shaped spring plates from the tool elements for permitting the tool elements to be disconnected from the holder frames for replacement.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: June 18, 1996
    Inventor: Tung-Yi Chen
  • Patent number: 5255575
    Abstract: A hammer with interchangeable head and tail tool pieces where the head and tail pieces are inserted into tool voids in opposite ends of the hammer body and further having a removal pin for insertion into additional voids in the hammer body for urging the head and tail pieces out of the tool voids.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: October 26, 1993
    Inventor: Michael D. Williams
  • Patent number: 5216939
    Abstract: A hammer head with an interchangeable tip and a hollow interior housing within which various weights can be inserted and held tightly in place. The tip of the hammer head is easily removed and changed using a slotted keyhole entry. The internal weight is held in place within the interior of the head and tip. A retainer ring rides in grooves within the head housing effectively holding the tip in place.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: June 8, 1993
    Inventor: William B. Swenson
  • Patent number: 5142948
    Abstract: A hammer including a body, a handle formed integral with the body and perpendicular to the body, a hole formed in the body, and a head including a stub for engagement in the hole of the body, and the head being welded to the body such that the hammer is formed. An annular groove is formed between the head and the body for accommodating the weld metal such that the weld metal will not be protruded.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: September 1, 1992
    Inventor: Mou T. Liou
  • Patent number: 5119699
    Abstract: A hammer including an elongate hammer head mounted orthogonally to a handle. The hammer head includes an impact head, wherein the impact head is defined by an impact face that defines an acute angle relative to the elongate handle axis of substantially 8 to 11.5 degrees to minimize strain and deflection upon an individual impacting a nail in use of the hammer. The impact face includes a semi-spherical recess to receive the nail and minimize deflection of various portions of the nail that may be fractured upon impact. A modification of the invention includes deformable inserts mounted within the semi-spherical recess for minimizing abrasion to various upholstery nails and the like upon impact.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: June 9, 1992
    Inventors: Earl S. McBride, Bill E. Bayer
  • Patent number: 5012702
    Abstract: A split head hammer including a head (4) from one end of which a replaceable hammer shaft (2) projects, comprising two head parts (4A, 4B) which can be connected to grip a pair of striking pieces (11) and the shaft (2), the shaft being sunk fully within the head. The head grips the shaft at a plurality of circumferentially-shaped positions (70). Striking pieces suitable also for use in other designs of hammer e.g. solid head and having a rearward extension (46) of smaller section than the open end (21) of the socket can be retained in the socket by plastic flow and/or by a separate retainer, preferably an annular metal washer (50, 60) usefully toroidal (60). Not only the striking pieces (11) but also the shaft (2) can be simply replaced by the user, notwithstanding that the hammer is suited to heavy-duty use.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: May 7, 1991
    Assignee: Thor Hammer Company Limited
    Inventor: John D. Taylor
  • Patent number: 4924576
    Abstract: A tool holder assembly of the type used to operatively position leather working tools or the like designed to punch or stamp the material being worked. A mallet, maul or other heavy, hammer-type instrument strikes the tool and forces a work engaging end thereof into penetrating or stamping engagement with the leather or other material being processed. The subject tool holder assembly includes an elongated handle which is intended to be gripped by the hand of the user a spaced distance from a tool receiving portion of the assembly so as to eliminate the danger of the positioning hand of the user being struck by the mallet or like instrument as well as allowing for ease of positioning of the tool.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: May 15, 1990
    Inventor: Barry Schiller
  • Patent number: 4831901
    Abstract: A hammer having a spring to augment the magnitude of strike force through application of a sliding weight free-moving as a projectile in a hollow shaft inside the hammer head. The hammer gains impact force through the use of a double impact hammer head with the spring propelling a portion of the inner hammer head mass to a greater velocity than the surrounding position of the head.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: May 23, 1989
    Inventor: Arnold L. Kinne
  • Patent number: 4753137
    Abstract: A hand tool, such as striking device like a sledgehammer, having replaceable head elements, which device comprises a handle having a raised extension on one end and a threaded cavity therein, and a replaceable head element, having a cavity therein; an insert having a hole therein to fit into the top part of the cavity of the head element, a threaded bolt, an a retaining tubular, elastomeric element, subject to expansion on axial compression, whereby various head elements of different cavity size may be secured to the extension of the handle by placing the threaded bolt through the insert hole and through tubular retaining element and threading the bolt into a threaded cavity of the raised extension to axially compress and expand outwardly the tubular elastomeric element into a frictional and shock-absorbing relationship with the interior surface of the head element cavity, thereby providing a hand tool device by which head elements having various cavity dimensions may be rapidly and efficiently secured to the
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: June 28, 1988
    Inventor: Thomas W. Kennedy
  • Patent number: 4732058
    Abstract: A measuring hammer which is constructed in such a manner as to provide locations in the hammer with specific dimensions so that the hammer itself can be used to make measurements normally required in the construction field. Also, a nail holding aperture is disposed in the head portion thereof for starting a nail into the wood. Advantageously, the measuring hammer contains measurements of 1.5", 12", 16" or 24".
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: March 22, 1988
    Inventor: Soon W. Chung
  • Patent number: 4558726
    Abstract: A strap is secured to the head of the hammer and interlocks with a strap on the handle of the hammer when the head is assembled with the handle. The two interlocking straps prevent the head from turning on the handle when the hammer is used.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: December 17, 1985
    Inventor: Howard W. Clay