Having Plural Striking Faces Patents (Class 81/26)
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Patent number: 11511408Abstract: An impact hand tool comprising an impact head including an impact surface to engage a work piece and an enlarged hand grip including a palm engaging surface to engage at least a major portion of a person's palm interconnected by an elongated handle such that when in use a person grasps the enlarged hand grip positioning the palm engage surface in the palm of the hand and gripping the side of the enlarged hand grip on opposite sides of the elongated handle.Type: GrantFiled: June 1, 2020Date of Patent: November 29, 2022Inventor: William E. Holley, Sr.
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Patent number: 11389939Abstract: A breaker hammer for breaking hard objects includes one or multiple striking faces. One striking face has a breaking portion inside. The breaking portion occupies about 80% of the area of the striking face. The breaking portion has a plurality of striking areas protruding from the striking face, thereby effectively striking and breaking hard objects.Type: GrantFiled: March 30, 2020Date of Patent: July 19, 2022Assignee: LUCKY-BRAND INDUSTRIAL CO., LTD.Inventor: Ying-Chieh Chen
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Patent number: 9016172Abstract: 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: GrantFiled: May 29, 2013Date of Patent: April 28, 2015Inventors: Ying-Chieh Liao, Yu-Kuo Liao
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Publication number: 20150107418Abstract: An improved sledge hammer device is disclosed having first and second head portions attached to a central rod and a hand guard which is substantially parallel to the central rod. In operation, the hammer is held by the central rod, or optionally by the hand guard and is brought vertically or horizontally in contact with its target by the user. The device is particularly advantageous in situations where the typical central handle and/or wide swing arc is impractical due to space constraints.Type: ApplicationFiled: October 20, 2014Publication date: April 23, 2015Inventor: Robert Perry
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Patent number: 8973467Abstract: 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: GrantFiled: November 14, 2012Date of Patent: March 10, 2015Inventor: Les Bronee
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Publication number: 20140352498Abstract: 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: ApplicationFiled: May 29, 2013Publication date: December 4, 2014Inventors: Ying-Chieh LIAO, Yu-Kuo Liao
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Publication number: 20140053342Abstract: 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: ApplicationFiled: November 14, 2012Publication date: February 27, 2014Inventor: LES BRONEE
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Patent number: 8495929Abstract: 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: GrantFiled: December 30, 2009Date of Patent: July 30, 2013Assignee: General Electric CompanyInventors: Brock M. Lape, Jeffrey D. Evans
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Patent number: 8468630Abstract: A wheel weight tool includes a handle connected to a hammer head on a first end and having a first hook on a second end. The first hook may be adapted for removing a wheel weight. The hammer head has a soft end and a hard end. The hard end may include a second hook.Type: GrantFiled: May 18, 2011Date of Patent: June 25, 2013Assignee: U.W.T., Inc.Inventors: Russell B. Barnhart, Kim M. Barnhart
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Publication number: 20130145904Abstract: 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: ApplicationFiled: February 5, 2013Publication date: June 13, 2013Applicant: J&N TACTICAL, LLCInventor: J&N TACTICAL, LLC
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Publication number: 20130112045Abstract: A sledge hammer having a handle and a double-face head. The head may be secured to one end of the handle and have a horizontal slot formed through a top portion perpendicular to a line between the two faces. The slot may be configured to receive an adze blade of a Halligan tool.Type: ApplicationFiled: November 3, 2011Publication date: May 9, 2013Inventor: CHRIS PIVERONAS
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Patent number: 8387487Abstract: 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: GrantFiled: December 1, 2010Date of Patent: March 5, 2013Assignee: J&N Tactical, LLCInventors: Jeffrey Herr, Matt Herr
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Publication number: 20120137832Abstract: 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: ApplicationFiled: December 1, 2010Publication date: June 7, 2012Applicant: J&N TACTICAL, LLCInventors: Jeffrey Herr, Matt Herr
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Patent number: 8028881Abstract: A device for impacting a fastener in one embodiment includes a housing with an upper housing portion, a middle housing portion, and a side housing portion extending between the upper housing portion and the middle housing portion, a drive cylinder configured to vent within the housing, an air passage extending through the housing and including a mouth at the upper housing portion, and a strike plate extending over the upper housing portion and including a top portion positioned apart from the upper housing portion, and a first side extension extending downwardly from the top portion along the side housing portion to a location above and spaced apart from an outwardly extending first surface of the middle housing portion.Type: GrantFiled: February 20, 2009Date of Patent: October 4, 2011Assignee: Robert Bosch GmbHInventors: John Ronn, Marco Laubach, Darius Smolinski, Kuo Lun Hung, Mu-Yin Chu
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Patent number: 7950308Abstract: The hammer for breaking polycrystalline silicon is provided with a handle portion extending along a center axis and a head portion extending in a direction intersecting a direction of the center axis at the leading end of the handle portion. The head portion is provided with a head main body connecting with the handle portion, a striking part installed at one end of the head main body via a coupling shaft portion, and a counter weight portion installed at the other end of the head main body. The head main body, the coupling shaft portion, the striking part and the counter weight portion are formed integrally from a hard metal. A round-raised striking surface is formed at the striking part.Type: GrantFiled: August 25, 2008Date of Patent: May 31, 2011Assignee: Mitsubishi Materials CorporationInventors: Tetsuya Atsumi, Munehiro Takasugi
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Patent number: 7617749Abstract: A siding hammer having a depth control face spaced in front of a striking face of a hammer head of the hammer. The depth control face strikes a substrate into which a fastener is being driven when the fastener has been driven to a predetermined depth of penetration in the substrate to inhibit the fastener from being driven further into the substrate. In certain embodiments, the depth control face is removable to permit the hammer to be used without depth of penetration control. In certain embodiments, the depth control face is adjustable to adjustably control fastener depth penetration. Attachments are also provided for temporarily converting a hammer into a siding hammer.Type: GrantFiled: May 8, 2007Date of Patent: November 17, 2009Inventor: Robert E. Kelland
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Publication number: 20080276759Abstract: A siding hammer having a depth control face spaced in front of a striking face of a hammer head of the hammer. The depth control face strikes a substrate into which a fastener is being driven when the fastener has been driven to a predetermined depth of penetration in the substrate to inhibit the fastener from being driven further into the substrate. In certain embodiments, the depth control face is removable to permit the hammer to be used without depth of penetration control. In certain embodiments, the depth control face is adjustable to adjustably control fastener depth penetration. Attachments are also provided for temporarily converting a hammer into a siding hammer.Type: ApplicationFiled: May 8, 2007Publication date: November 13, 2008Inventor: Robert E. Kelland
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Publication number: 20080178708Abstract: A distressing tool comprises a handle configured for grasping by a user, a head member coupled to the distal end of the handle and at least one distressing head coupled to said head member, said distressing head having at least one protruding pattern formed thereon. The protruding pattern is configured to simulate an existing object such as a grate, worm holes, threads, bolts, worm burrows, slices gouges, pan head screws, chains and nails.Type: ApplicationFiled: January 25, 2007Publication date: July 31, 2008Applicant: PROVO CRAFT AND NOVELTY, INC.Inventors: Lisa Marie Wheat, Gerardo D. Ayala
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Patent number: 7350440Abstract: A framing hammer assembly enables a user to tend to nail work within tight spaces. The hammer assembly comprises a three-dimensional hammer head, an elongate hammer handle, and a select tool attachment assembly. The hammer head comprises first and second nail-striking heads, a fulcrum, and a nail-pulling claw. The first nail-striking head and the second nail-striking head are orthogonally situated relative to one another for enabling a user to drive nails within tight spaces. The hammer handle comprises a head-engagement portion, a second handle end, and a hand-grip portion. The select tool attachment assembly comprises a select tool accessory and certain fastening structure for fastening the select tool accessory to the second handle end. The select tool accessory is interchangeable with a plurality of secondary tool accessories for selectively providing a lever arm and for enabling the user to remove driven nails or similar other hardware within tight spaces.Type: GrantFiled: February 15, 2006Date of Patent: April 1, 2008Inventor: Roberto R. Casolco
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Patent number: 7174809Abstract: A hammer for eliminating misguided hammer strikes includes an elongated handle having an upper end with a head attached thereto. The head includes two oppositely facing striking surfaces, one of which is concave. Centrally positioned within the concave striking surface is a bull's-eye. As the concave striking surface impacts the nail head, the nail head is directed toward the bull's-eye preventing the striking surface from sliding off the nail.Type: GrantFiled: December 5, 2005Date of Patent: February 13, 2007Inventor: David B. Schipul
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Patent number: 7168339Abstract: A dual headed hammer is a hammer with special features for framing and finishing applications. A first head of the hammer has a smaller head and face for finish carpentry applications, and may have a gridded-face to prevent nail slippage. A nail-extractor is located midway between the head and the handle. The opposite end of the hammer has a larger second head for framing applications. Additionally, the larger second head has a plurality of nail holders, complete with magnets, on the top and lateral sides of the second head. The handle is sized such that the total length of the invention is exactly 17.5 inches to aid in construction of walls that use 2×4 studs, 16 inches on center.Type: GrantFiled: November 19, 2004Date of Patent: January 30, 2007Inventor: Tevita T. Nau
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Patent number: 7134363Abstract: 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: GrantFiled: April 13, 2005Date of Patent: November 14, 2006Inventor: Anthony Krallman
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Patent number: 6983674Abstract: An impact device has a handle attached to an impact head. A weight is reciprocatably mounted on a guideway on the impact head. The weight can move along the guideway between a first position and a second position in response to motion of the head. A yielding member such as a spring or elastomeric element can be mounted at the impact head. The weight can recoil against the yielding member in response to motion of the head. The impact head can hit an object in such a manner as to move the weight in a straight line from the first position to the second position.Type: GrantFiled: January 7, 2004Date of Patent: January 10, 2006Inventor: Joseph Rufolo, Jr.
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Patent number: 6904829Abstract: 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: GrantFiled: September 17, 2002Date of Patent: June 14, 2005Inventor: Anthony Krallman
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Patent number: 6829966Abstract: A hammer configuration possessing a conventional striking end opposed to a fastening pin starting end presenting a cylindrical blind cavity enables manual starting of a collared fastening pin typically utilized in fastening metal tracks to typically concrete substrates and driving of the same home with placement of the fastening pin in the blind cavity, striking and penetrating the metal track with the exposed point of the fastening pin embedding the same partially in the substrate, retracting and then rotating the hammer head 180°, and striking the head of the fastening pin with the flat face of the conventional striking end. An optional bifurcated claw on the top of the head provides optimal leverage in conventional use pulling nails also driven by the conventional striking end. Conventional use with nails and similarly driven fasteners and safe, efficient, and reliable starting and driving of collared fastening pins is provided in a single hammer.Type: GrantFiled: February 27, 2003Date of Patent: December 14, 2004Inventor: Robert M. Bramuchi
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Patent number: 6701805Abstract: 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: GrantFiled: March 15, 2002Date of Patent: March 9, 2004Inventors: Richard B. Souder, William E. Baum
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Publication number: 20030172779Abstract: 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: ApplicationFiled: March 15, 2002Publication date: September 18, 2003Inventors: Richard B. Souder, William E. Baum
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Patent number: 6598858Abstract: A hand tool having novel features including an outwardly extending protrusion which provides a multitude of various angular substantially V-shaped extracting claws and a downwardly extending protrusion having fastener extracting means thereon, with the fastener extracting means being substantially formed from a cutout in the shape of a partial star interconnected with a teardrop.Type: GrantFiled: September 19, 2001Date of Patent: July 29, 2003Inventors: Cathy D. Santa Cruz, Gary Gieratz
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Patent number: 6595087Abstract: A dead blow hammer has a skeleton including a cylindrical head tube and a cylindrical neck tube fixed to the head tube and projecting laterally therefrom and receiving therein a disk-like plastic spacer and the working end of an elongated plastic handle core, which is adhesively secured in the neck tube. The head tube contains shot and the ends thereof are closed by end caps having cylindrical, longitudinally-slotted flanges press-fitted in the ends of the head tube. The entire skeleton is encapsulated in an overmolded plastic sheath which includes an inner covering and a flexible and resilient grip further overmolded on the inner covering adjacent to the distal end of the handle member.Type: GrantFiled: November 21, 2001Date of Patent: July 22, 2003Assignee: Snap-on Technologies, Inc.Inventors: Thomas J. Whalen, Richard Wroblewski
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Patent number: 6539824Abstract: 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: GrantFiled: May 24, 2001Date of Patent: April 1, 2003Inventor: Charles D. Wedhorn
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Patent number: 6477922Abstract: An impact tool having a head structure including first head piece, a second head piece and an elongated handle structure. With a lengthwise section of the handle structure being arranged in operative association with and maintaining the first and second head piece of the head structure in operative combination relative to each other. A woven fiber material is arranged about and epoxied to the lengthwise section of the handle structure arranged in operative association with the first and second heads to enhance the interface therebetween.Type: GrantFiled: October 25, 1999Date of Patent: November 12, 2002Inventor: John A. Burnett
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Patent number: 6299136Abstract: A claw hammer head having a body, a neck extending from the front of the body and having a face, and a claw extending from the back of the body. The claw is a multi-radius claw having a profile which maximizes hand-pull leverage during the entire scope of a nail pull rotation. The head has a high raised brow. The claw tips are tapered and pointed, enabling the claw to dig under nail heads that are below the wood surface. The claw has a very sharp V slot near the end of the claw. The head is provided with a cup in the pocket which is used to hold a nail head when one handed spiking with a nail positioned with the head of the nail in the cup and a shank in the slot captured by the V shape of the slot. The neck is a long reach neck with a progressive radius and the face is oversized and slightly contoured to about equal to a 6″ R. The edge of the face is chamfered. The head is provided with large side hitting faces on each side of the body.Type: GrantFiled: May 3, 1999Date of Patent: October 9, 2001Inventor: Toshiro Nakayama
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Patent number: 6196088Abstract: The novel hammer of the invention is a hammer having a reinforced handle, wherein the handle includes a grip and an integrally attached striking cap at least partially embedded in the grip. The striking cap is of a material harder than the grip, and provides the hammer with a striking surface at the butt end of the handle. The striking cap may further have at least one rib or groove, which serve to more strongly affix the striking cap to the hammer. The invention also includes a reinforced grip, and a method of manufacture of the hammer of the invention.Type: GrantFiled: February 20, 1998Date of Patent: March 6, 2001Assignee: Estwing Manufacturing CompanyInventor: Robert Harold Youngren
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Patent number: 5826466Abstract: A multi-purpose hammer that starts nails with the use of only one hand, drives nails in restricted areas, and draws circles. The hammer includes a handle, a head, and holding apparatus. The head extends generally perpendicularly from the handle, at an end thereof. The holding apparatus is associated with the head and holds the nail and includes a pair of dimples in a surface of an intermediate portion of the head. Another surface of the intermediate portion of the head has a striking surface that drives a nail in the restricted area by reducing the needed swing. And, the handle of the hammer has a plurality of grooves therealong with inch indica next thereto that function as the radius of the circle, with the nail in one dimple functioning as the center of the circle and a marking device inserted into a desired groove with the handle being swung and marking the circle.Type: GrantFiled: May 5, 1997Date of Patent: October 27, 1998Inventor: Edward Weissbach
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Patent number: 5537896Abstract: A dead-blow nonmarring hammer has its head and handle portions unitarily formed on half shells which are welded together. Hammer face inserts are received in ends of the housing portion and impact plates can be provided inwardly of the inserts to protect the inserts against wear by the mobile mass within the housing.Type: GrantFiled: February 9, 1995Date of Patent: July 23, 1996Assignee: Erwin Halder KGInventor: Werner Halder
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Patent number: 5526719Abstract: 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: GrantFiled: September 14, 1995Date of Patent: June 18, 1996Inventor: Tung-Yi Chen
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Patent number: 5375487Abstract: A maul assembly including a maul head having an annular body with an annular outer wall concentric to an annular inner wall and an annular chamber within the body disposed between the two walls. The annular walls and chamber are circumferentially disposed about a head center axis which is coincidental with a handle center axis of a handle attached to an end of the head. The chamber is partially filled with a quantity of flowable inertia material preferably round steel shot and preferably in a range of about 50% to 75% of the chamber's volume and preferably with steel shot.Type: GrantFiled: October 15, 1993Date of Patent: December 27, 1994Assignee: Zimmerman Packing & Mfg., Inc.Inventor: R. Charles Zimmerman
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Patent number: 5255575Abstract: 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: GrantFiled: June 29, 1992Date of Patent: October 26, 1993Inventor: Michael D. Williams
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Patent number: 5141353Abstract: An improved implement including an injection molded thermoplastic handle and an implement head adapted to be placed in the mold in which the handle is to be manufactured in the injection molding process, and in which the implement head is adapted to receive and retain heated thermoplastic material injected under pressure and which the portion for retaining heated thermoplastic material is in communication with the handle, and in which the interface formed between the portion for retaining heated thermoplastic material in the adapted implement head and the thermoplastic material retained thereby forms a bond joining the adapted implement head and the injection molded handle.Type: GrantFiled: March 15, 1989Date of Patent: August 25, 1992Assignee: Lifetime Tool Company, IncorporatedInventors: William C. Meredith, Jr., Jerry R. Meredith
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Patent number: 5027677Abstract: An electrician's utility hammerhead for use in striking objects like nails, prying objects from adjacent surfaces, and puncturing objects like knock-out plugs of electrical junction and fuse boxes, comprises a forward section with a flat striking surface primarily suited for striking nail heads, a middle section for attachment to a handle and having left and right side surfaces configured for use in striking objects, and a rear section that tapers rearwardly to a rear surface of reduced area for striking objects in confined areas, and for knocking out electrical junction box knock-out plugs of various sizes, and including a fulcrum protuberance on the top surface of the rear section for providing increased leverage when using the hammerhead as a prying tool.Type: GrantFiled: February 12, 1990Date of Patent: July 2, 1991Inventor: John Rallo
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Patent number: 5012702Abstract: 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: GrantFiled: March 6, 1990Date of Patent: May 7, 1991Assignee: Thor Hammer Company LimitedInventor: John D. Taylor
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Patent number: 4974434Abstract: A device for bending or levelling workpieces by means of shot peening is improved by controlled impacting and indenting using a support element having a rear wall and side walls; a plurality of force spaced apart distributing elements are arranged in the support element and in the least one layer so that at least some of them abut the rear wall of the support element; a plurality of indenting, shot peening elements in engagement with at least some of the force distributing elements in that any of the shot peening elements engage at least two of the force distributing elements; there are elements of one of the plurality which abut the side walls of the support element.Type: GrantFiled: July 12, 1989Date of Patent: December 4, 1990Assignee: Dornier GmbHInventors: Helmut Reccius, Rolf Meyer
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Patent number: 4773286Abstract: Striking tools, heads and handles for such tools, and methods of manufacturing them. A tool head according to this invention employs a flange which extends from each side of the head between the forward and rear portions of the head. The portion of the head within the periphery of each flange is generally concave and narrows to form a web extending longitudinally in the striking direction to connect the forward and rear portions. The web may include at least one opening communicating between the two concave surfaces. The flanges increase the cross-sectional area and moment of inertia of the head relative to the striking direction and relative to the handle axis. The resulting head enjoys greater strength and resistance to translational forces, bending moments, deformation and potential failure. Portions of the handle extending through the opening in the head and thereby about portions of the head reduce the possibility that the head will leave the handle as the tool is being swung.Type: GrantFiled: January 27, 1986Date of Patent: September 27, 1988Inventor: Walter K. Krauth