Patents by Inventor David C. Goss
David C. Goss 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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Patent number: 11926021Abstract: A drive system including a bit with a bit end configured to provide targeted frictional engagement with a fastener. The bit end has an outer leading wall tapered with respect to the bit end longitudinal axis at a leading wall angle selected from leading wall angle values ranging within a leading wall angle tolerance band and the fastener has an inner recess wall tapered with respect to the fastener longitudinal axis at a recess wall angle selected from recess wall angle values ranging within a recess wall angle tolerance band, wherein the leading wall angle values within the leading wall angle tolerance band and the recess wall angles values within the recess wall angle tolerance band do not overlap when the outer leading wall contacts the inner pilot recess wall at a targeted focal area to achieve a desired level of frictional engagement between the pilot end and the fastener.Type: GrantFiled: February 25, 2020Date of Patent: March 12, 2024Assignee: Ttapdrive ASInventors: Steven P. Donovan, David C. Goss, Olof Markus Ingemar Bergelin, Jone Edland
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Patent number: 11781598Abstract: A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure.Type: GrantFiled: May 19, 2020Date of Patent: October 10, 2023Assignee: Acument Intellectal Properties, LLCInventor: David C. Goss
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Patent number: 10788077Abstract: A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure. The drive system comprises a fastener and/or bit having drive surfaces formed of either polygon involutes or a single arc construction. A punch is also provided for forming a recess in either the fastener or the bit, wherein the punch has corresponding surfaces.Type: GrantFiled: September 14, 2017Date of Patent: September 29, 2020Assignee: ACUMENT INTELLECTUAL PROPERTIES, LLCInventor: David C. Goss
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Publication number: 20200277996Abstract: A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure.Type: ApplicationFiled: May 19, 2020Publication date: September 3, 2020Inventor: David C. Goss
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Publication number: 20200269398Abstract: A drive system including a bit with a bit end configured to provide targeted frictional engagement with a fastener. The bit end has an outer leading wall tapered with respect to the bit end longitudinal axis at a leading wall angle selected from leading wall angle values ranging within a leading wall angle tolerance band and the fastener has an inner recess wall tapered with respect to the fastener longitudinal axis at a recess wall angle selected from recess wall angle values ranging within a recess wall angle tolerance band, wherein the leading wall angle values within the leading wall angle tolerance band and the recess wall angles values within the recess wall angle tolerance band do not overlap when the outer leading wall contacts the inner pilot recess wall at a targeted focal area to achieve a desired level of frictional engagement between the pilot end and the fastener.Type: ApplicationFiled: February 25, 2020Publication date: August 27, 2020Inventors: Steven P. Donovan, David C. Goss, Olof Markus Ingemar Bergelin, Jone Edland
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Patent number: 10731692Abstract: The invention provides a screw in which the screw head (1) has a slot (2) in the upper surface of the screw head, an upper peripheral wall (9) of regular planform extending down from the rim of the slot into the screwhead, the upper peripheral wall (9) being generally aligned with the axis of the screw to form a recess (3), a sloping transition surface (15), extending downwardly and inwardly with respect to the lower edge of the upper peripheral wall (9), and a further recess (11) extending downwardly from the lower edge of the sloping transition surface (15), in which the dimensions of the screw head are such that when the screwhead is engaged by a tool (6) having upper (16) and lower (17) engagement sections, and in which the upper engagement section (16) extends downwardly with respect to the axis of the screw to which the tool is to engage and the lower engagement section (17) extends further downwardly, and in which there is at least one protrusion (or rib) (21) on the inside wall (12) of the further recType: GrantFiled: January 21, 2013Date of Patent: August 4, 2020Assignee: TTAPDRIVE ASInventor: David C. Goss
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Publication number: 20200238482Abstract: A bit cutter is used to cut a bit, where the bit cutter matches the configuration of a recess in a corresponding fastener. The resulting bit contacts the top of the recess of a fastener, along a plurality of lines of contact. The fact that the contact is along a plurality of lines, as opposed to mere points, provides for improved frictional adhesion or “stick fit” between the bit and the fastener.Type: ApplicationFiled: January 23, 2020Publication date: July 30, 2020Inventor: David C. Goss
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Patent number: 10697499Abstract: A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure.Type: GrantFiled: March 16, 2016Date of Patent: June 30, 2020Assignee: ACUMENT INTELLECTUAL PROPERTIES, LLCInventor: David C. Goss
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Publication number: 20180003241Abstract: A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure. The drive system comprises a fastener and/or bit having drive surfaces formed of either polygon involutes or a single arc construction. A punch is also provided for forming a recess in either the fastener or the bit, wherein the punch has corresponding surfaces.Type: ApplicationFiled: September 14, 2017Publication date: January 4, 2018Inventor: David C. Goss
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Publication number: 20160273591Abstract: A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure.Type: ApplicationFiled: March 16, 2016Publication date: September 22, 2016Inventor: David C. Goss
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Publication number: 20130025418Abstract: A screw, tool and a system for driving a screw that includes a screw and a corresponding tool is provided. The screw includes a screw head including a slot in the upper surface of the screw head, a tapered recess disposed downwardly of the slot in the screw. The tool includes an upper engagement section which fits within the slot, and a lower engagement section shaped to extend into the tapered recess with a contact surface of an external surface of the lower engagement section in an interference fit with the tapered recess when the upper engagement section is disposed within the slot. The contact surface has a shape which substantially matches any of a plurality of angular inclinations the surface of the tapered recess may have at the interference fit.Type: ApplicationFiled: April 15, 2011Publication date: January 31, 2013Applicant: TTAPDRIVE ASInventors: Jone Edland, David C. Goss
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Patent number: 6654997Abstract: A device and method of removing a rivet which has been installed on a work piece. The method includes clamping a hand held device having springs onto the work piece, engaging a drill with a drill bit of the hand held device, the springs applying a pre-load force to the drill bit, operating the drill, thereby causing the springs to apply an increased load force to the drill bit and causing the drill bit to drill into a button of the rivet, unclamping and removing the hand held device from the work piece, and using a compression tool to remove the rivet from the work piece. The compression tool includes a push out portion configured to push out the rivet, and a recess is disposed generally opposite the push out portion for catching the rivet as the rivet is pushed out.Type: GrantFiled: December 4, 2001Date of Patent: December 2, 2003Assignee: Textron Inc.Inventors: Steven P. Donovan, David C. Goss, Richard A. Swedberg
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Patent number: 6622596Abstract: A drive tool which does not require any upper-body force from an operator to install a fastener. The drive tool includes a top portion which is engageable with a drive source and a lower portion which is engageable with a fastener. The drive tool includes springs which are configured to urge the lower portion and upper portion of the tool away from each other (i.e. relative movement) and provide that a generally axial force is applied to the fastener engaged with the lower portion of the tool. As a result, the operator does not need to apply any upper-body axial force to the drive tool to install the fastener. Preferably, the lower portion of the drive tool includes one or more foot pads on which an operator may stand, and the spring(s) become compressed when the operator stands on the foot pad(s).Type: GrantFiled: March 23, 2001Date of Patent: September 23, 2003Assignee: Textron Inc.Inventors: Michael Janusz, David C. Goss
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Patent number: 6585141Abstract: An adjustable end piece engagable with a drive tool and configured to deliver fasteners from the drive tool to a work piece. Assembly of the adjustable end piece can be varied by varying the assembly of the end piece components and thus varying the length of the end piece. The variation in the length of the end piece allows the end piece to accommodate fasteners of varying lengths.Type: GrantFiled: July 18, 2001Date of Patent: July 1, 2003Assignee: Textron Inc.Inventors: David C. Goss, Jordan Kingsbury
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Publication number: 20030101568Abstract: A device and method of removing a rivet which has been installed on a work piece. The method includes clamping a hand held device having springs onto the work piece, engaging a drill with a drill bit of the hand held device, the springs applying a pre-load force to the drill bit, operating the drill, thereby causing the springs to apply an increased load force to the drill bit and causing the drill bit to drill into a button of the rivet, unclamping and removing the hand held device from the work piece, and using a compression tool to remove the rivet from the work piece. The compression tool includes a push out portion configured to push out the rivet, and a recess is disposed generally opposite the push out portion for catching the rivet as the rivet is pushed out.Type: ApplicationFiled: December 4, 2001Publication date: June 5, 2003Inventors: Steven P. Donovan, David C. Goss, Richard A. Swedberg
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Patent number: 6454891Abstract: The present invention provides novel structures for spin weld assemblies and a method for forming same. The spin weld assemblies are formed by attaching a fastener to a plastic insert which is then attached to a plastic workpiece. The fastener can take the form of many different structures, preferably a stud or a nut. The fastener is formed with a drive for driving the fastener into a bore of the plastic insert having first and second ends. Self-tapping threads on the fastener engage the fastener with the plastic insert when the fastener is driven into the bore of the insert. The insert, having the fastener threadedly engaged thereto, is then rotated and generally axially displaced into an opening of the plastic workpiece, thereby spin welding the insert to the workpiece. The first end of the insert provides proper alignment for the insert to be spin welded into the opening as the diameter of the first end is smaller than that of the opening.Type: GrantFiled: June 2, 2000Date of Patent: September 24, 2002Assignee: Textron Inc.Inventor: David C. Goss
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Publication number: 20020040797Abstract: An adjustable end piece engagable with a drive tool and configured to deliver fasteners from the drive tool to a work piece. Assembly of the adjustable end piece can be varied by varying the assembly of the end piece components and thus varying the length of the end piece. The variation in the length of the end piece allows the end piece to accommodate fasteners of varying lengths.Type: ApplicationFiled: July 18, 2001Publication date: April 11, 2002Inventors: David C. Goss, Jordan Kingsbury
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Publication number: 20010035073Abstract: A drive tool which does not require any upper-body force from an operator to install a fastener. The drive tool includes a top portion which is engageable with a drive source and a lower portion which is engageable with a fastener. The drive tool includes springs which are configured to urge the lower portion and upper portion of the tool away from each other (i.e. relative movement) and provide that a generally axial force is applied to the fastener engaged with the lower portion of the tool. As a result, the operator does not need to apply any upper-body axial force to the drive tool to install the fastener. Preferably, the lower portion of the drive tool includes one or more foot pads on which an operator may stand, and the spring(s) become compressed when the operator stands on the foot pad(s).Type: ApplicationFiled: March 23, 2001Publication date: November 1, 2001Inventors: Michael Janusz, David C. Goss
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Patent number: 6296064Abstract: A drive tool having a top portion which is engageable with a drive source and a lower portion engageable with a fastener. The drive tool includes an axial load assist mechanism configured to urge the lower portion and upper portion of the tool away from each other (i.e. relative movement) such that a generally axial force is applied to the fastener engaged with the lower portion of the tool. As a result, the amount of upper body axial force an operator must apply to the drive tool to install the fastener is reduced.Type: GrantFiled: October 6, 2000Date of Patent: October 2, 2001Assignee: Textron Inc.Inventors: Michael Janusz, David C. Goss
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Patent number: 6158310Abstract: A novel drive system includes a body, such as a threaded fastener body or a drive tool body, a tapered transitional portion at an end of the body, and a drive head at the end of the transitional portion, such that the transitional portion is between the drive head and the body. The transitional portion has structure thereon, such as a plurality of alternating curved lobes and flutes, for engagement with a corresponding socket. At least a portion of the lobes are threaded in the transitional portion. The drive head also has structure thereon for engagement with the socket, such as a plurality of alternating curved lobes and flutes. The flutes on the transitional portion are axially aligned with the flutes on the drive head and the lobes on the transitional portion are axially aligned with the lobes on the drive head.Type: GrantFiled: May 24, 1999Date of Patent: December 12, 2000Assignee: Textron Inc.Inventors: David C. Goss, Terry A. Crissinger