Patents by Inventor William Harpell
William Harpell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100224032Abstract: A manually operated material lifting tool primarily used for lifting roofing material. The tool has a tool blade, the blade having a front edge and rear edge, the front and rear edges joined by side edges. The blade is wider than it is longer and has slots extending inwardly from the front edge toward the back edge forming teeth between the slots. A handle is attached to the top of the blade approximately midway between the side edges, the bottom, front of the handle located behind, but adjacent the closed end of the nearest slot, and the bottom, rear of the handle adjacent the rear edge of the blade. The handle extends rearwardly and upwardly from the top of the blade at an angle ranging between 30° and 50°.Type: ApplicationFiled: March 5, 2009Publication date: September 9, 2010Inventor: William Harpell
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Patent number: 7690627Abstract: A pulling tool for grabbing and pulling material from underneath structural elements. The tool has a handle, the handle having a main body portion and having one flat end portion bent from one end of the body portion. A thin, narrow, claw member is attached to the free end of the one end portion and extends across and past both sides of the one end portion to form a claw on each side of the handle at one end of the handle. Each claw is tapered to a straight end edge which edge is transverse to the end portion. Each claw has a narrow v-shaped material receiving slot extending inwardly from the straight end edge to allow the claw to grab the material being removed.Type: GrantFiled: December 19, 2007Date of Patent: April 6, 2010Inventor: William Harpell
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Publication number: 20080099737Abstract: A pulling tool for grabbing and pulling material from underneath structural elements. The tool has a handle, the handle having a main body portion and having one flat end portion bent from one end of the body portion. A thin, narrow, claw member is attached to the free end of the one end portion and extends across and past both sides of the one end portion to form a claw on each side of the handle at one end of the handle. Each claw is tapered to a straight end edge which edge is transverse to the end portion. Each claw has a narrow v-shaped material receiving slot extending inwardly from the straight end edge to allow the claw to grab the material being removed.Type: ApplicationFiled: December 19, 2007Publication date: May 1, 2008Inventor: William Harpell
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Publication number: 20070252117Abstract: A pulling tool for grabbing and pulling material from underneath structural elements. The tool has a handle, the handle having a main body portion and having one flat end portion bent from one end of the body portion. A thin, narrow, claw member is attached to the free end of the one end portion and extends across and past both sides of the one end portion to form a claw on each side of the handle at one end of the handle. Each claw is tapered to a straight end edge which edge is transverse to the end portion. Each claw has a narrow v-shaped material receiving slot extending inwardly from the straight end edge to allow the claw to grab the material being removed.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Inventor: William Harpell
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Publication number: 20070051209Abstract: A blade for a roofing tool, the tool used to remove material off a roof. The blade has a generally quadratic shape with front and rear edges joined by sides, a top surface, and a bottom surface. The bottom surface has a front section and a rear section, the front section extending rearwardly from the front edge of the blade while angling slightly away from the top surface, and the rear section extending forwardly from the back edge of the blade while angling slightly away from the top surface. The front and rear sections join to define a ridge located generally midway between the front and back edges of the blade, the ridge extending across the blade and parallel to the front edge. The blade can be rocked about the ridge to rest on either the back or front bottom section. When rocked back to rest on its back section, it can lever a roofing fastener up with its front edge.Type: ApplicationFiled: September 6, 2005Publication date: March 8, 2007Inventor: William Harpell
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Publication number: 20070051210Abstract: A blade for a lifting tool, the tool used to remove material off a support surface. The blade has a generally quadratic shape with front and rear edges joined by sides, a top surface, and a bottom surface. The bottom surface has a front section and a rear section, the front section extending rearwardly from the front edge of the blade while angling slightly away from the top surface, and the rear section extending forwardly from the back edge of the blade while angling slightly away from the top surface. The front and rear sections join to define a ridge located generally midway between the front and back edges of the blade, the ridge extending across the blade and parallel to the front edge. The blade can be rocked about the ridge to rest on either of the back or front bottom sections. When rocked forward to rest on its front bottom section, it can easily be slid under material on a support surface.Type: ApplicationFiled: September 5, 2006Publication date: March 8, 2007Inventor: William Harpell
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Patent number: 6339975Abstract: A roofing tool having a blade of generally quadratic shape with a front edge, a rear edge, and side edges joining the front and rear edges. The tool has two teeth extending forwardly from the front edge of the blade, at least the front ends of the teeth adapted to be easily slipped under roofing shingles. The inner sides of the teeth are beveled allowing the teeth to slip under the heads of shingle nails to be able to lift them. A nail receiving slot is provided in the blade between the teeth extending rearwardly from the front edge of the blade. This slot can be used to lift shingle or framing nails. At least the front ends of the teeth can be spaced apart a distance greater than the width of roof framing members so the teeth can straddle the framing member and the teeth can be used to lever sheathing boards up from the framing member.Type: GrantFiled: June 5, 2000Date of Patent: January 22, 2002Inventor: William Harpell
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Patent number: 6332635Abstract: A tool having a tool handle and a tool head. A tubular member is provided on one end of the tool handle, with the axis of the tubular member extending transverse to the tool handle. A cylindrical member is provided on the non-working end of the tool head. The cylindrical member is slidably, rotatably, mounted within the tubular member to connect the tool head to the tool handle. Cooperating locking elements are provided on both the tubular member and the cylindrical member for locking the tool head to the tool handle. The angle of the tool head to the handle can be adjusted.Type: GrantFiled: September 30, 1999Date of Patent: December 25, 2001Inventor: William Harpell
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Patent number: 6311783Abstract: A cultivating tool having a blade made from steel sheet at least one-eighth of an inch thick. The blade has a front surface, a back surface, and at least one cutting edge. The blade is tapered from the cutting edge to the front surface to provide a wide, tapered, camming section and a relatively narrow cutting edge. The tapered, caiming section is at least one inch wide.Type: GrantFiled: March 8, 1999Date of Patent: November 6, 2001Inventor: William Harpell
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Patent number: 6098292Abstract: A tool having a flat, quadrangular shaped blade with a straight front edge and a parallel back edge, the front edge being tapered to provide a cutting edge. A handle receiving tube extends upwardly and rearwardly from the top of the blade, the tube being centered between the sides of the blade. At least one impact receiving member is on the tool positioned to allow the blade to be hammered in a direction to drive the blade forwardly to have the front edge of the blade cut through material. A groove is formed in the bottom surface of the blade, the groove being unshaped with the base of the groove parallel to the front edge of the blade and located in front of the handle receiving tube. The groove forms a strengthening ridge on the upper surface of the blade. A strengthening strap is fastened to the lower, front portion of the handle receiving tube and extends forwardly on the upper surface of the blade toward the front edge of the blade.Type: GrantFiled: March 10, 1998Date of Patent: August 8, 2000Inventor: William Harpell
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Patent number: 6029545Abstract: A roofing tool having a handle with an attached thin blade. The blade has a relatively short, tapered, front portion with a leading edge. The blade has a straight top surface with the back portion of the blade having a straight bottom surface parallel to the top surface and with the front portion having a straight bottom surface extending from the bottom surface of the back portion upwardly at a slight angle to the top surface to form the leading edge of the blade. The front section of the front portion can be slightly rolled up to locate the leading edge above the top surface of the blade. The blade can have slots extending rearwardly from the leading edge of the blade. The front portion of the blade is at least as long as the slots.Type: GrantFiled: August 3, 1998Date of Patent: February 29, 2000Inventor: William Harpell
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Patent number: 5971653Abstract: A tool having a tool handle and a tool head. A connecting member is provided on one end of the tool handle, with the axis of the connecting member extending transverse to the tool handle, and a connector is provided on the non-working end of the tool head. The connector cooperates with the connecting member to connect the tool head to the tool handle. Preferably the tool head is detachably connected to the tool handle. The tool head can be adjustably connected to the tool handle to be able to adjust the angle of the tool head to the tool handle.Type: GrantFiled: August 4, 1997Date of Patent: October 26, 1999Inventor: William Harpell
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Patent number: 5870794Abstract: A broom having a broom head with a top surface and a bottom surface. A broom handle projects upwardly and rearwardly from the top surface of the broom head with the bristles extending downwardly from the bottom surface of the head. A tool for use in working on the surface being cleaned by the broom is mounted on the broom head in a position be used when the broom is inverted. The tool can comprise a scraping member or a nail receiving slot for use in pulling nails.Type: GrantFiled: September 29, 1997Date of Patent: February 16, 1999Inventor: William Harpell
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Patent number: 5836222Abstract: A shingle removing tool having, in a first embodiment, a generally flat blade with a handle attached to one end of the blade at a shallow angle. The blade has a set of slots in its front edge and at least two slots in its back edge for use in removing shingle nails from the shingles or roof. In a second embodiment, the tool has a generally flat blade with two, spaced-apart, elongate fingers projecting forwardly from the front edge of the blade. The fingers provide a tool with better leverage for lifting off shingles. A set of slots are provided in the front edge of the blade between the fingers and at least two slots are in the back edge for use in removing shingle nails. In a third embodiment, a shingle cutting tool is provided having top and bottom blades joined together with a central, vertical flange. A cutting edge on the front of the flange cuts shingles between the blades as the tool is pushed forward.Type: GrantFiled: October 9, 1996Date of Patent: November 17, 1998Inventor: William Harpell
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Patent number: 5429356Abstract: A golf putter having an adjustable head with at least one post extending therefrom. A plurality of annular washers are interchangeably secured to the post for changing the center of gravity of the putter head. A hub assembly attaches a shaft to the post. A novel hub locking mechanism locks the hub to the posts in which tapered male portion engages a tapered female portion. Also, a pin and groove arrangement prevents the shaft from rotating further than a predetermined angle from the vertical axis.Type: GrantFiled: August 18, 1993Date of Patent: July 4, 1995Assignee: Bill-Ding Technology, Inc.Inventors: Craig B. Dingle, William Harpell
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Patent number: 5253869Abstract: A golf putter with an adjustable head having screw-threaded projections to which weighted metal disks or washers may be added or subtracted to change the center of gravity of the head and thus, the energy and the angular direction through which the ball travels when impacted by the player. An additional feature comprises provisions for changing the angle of attachment of the shaft to the head.Type: GrantFiled: November 27, 1991Date of Patent: October 19, 1993Inventors: Craig B. Dingle, William Harpell
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Patent number: D591578Type: GrantFiled: February 25, 2008Date of Patent: May 5, 2009Inventor: William Harpell