Patents by Inventor Edwin G. Sawdon
Edwin G. Sawdon 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: 9931720Abstract: A pierce nut insertion tool is provided. In another aspect, a pierce nut feeding mechanism has a mechanically independent driver actuator from that of a punch. A further aspect of the present tool employs a member, moveable with a punch, that retains a pierce nut prior to fastening of the nut to a workpiece. An additional aspect uses a fluid actuated nut feeder including a piston.Type: GrantFiled: October 15, 2014Date of Patent: April 3, 2018Assignee: BTM Company LLCInventors: Edwin G. Sawdon, Stephen E. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Publication number: 20150026950Abstract: A pierce nut insertion tool is provided. In another aspect, a pierce nut feeding mechanism has a mechanically independent driver actuator from that of a punch. A further aspect of the present tool employs a member, moveable with a punch, that retains a pierce nut prior to fastening of the nut to a workpiece. An additional aspect uses a fluid actuated nut feeder including a piston.Type: ApplicationFiled: October 15, 2014Publication date: January 29, 2015Applicant: BTM CorportionInventors: Edwin G. Sawdon, Stephen E. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Patent number: 8881364Abstract: A pierce nut insertion tool is provided. In another aspect, a pierce nut feeding mechanism has a mechanically independent driver actuator from that of a punch. A further aspect of the present tool employs a member, moveable with a punch, that retains a pierce nut prior to fastening of the nut to a workpiece. An additional aspect uses a fluid actuated nut feeder including a piston.Type: GrantFiled: December 1, 2011Date of Patent: November 11, 2014Assignee: BTM CorporationInventors: Edwin G. Sawdon, Stephen E. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Patent number: 8650730Abstract: A clinching tool is provided. A further aspect of the present application locates an anvil and/or movable die members closer to one lateral outside surface of a die body than the opposite lateral outside surface. In another aspect, an offset clinch die and pneumatic tool are employed. Another aspect includes a die body having an anvil and two linearly movable die members which essentially surround a lateral outside surface of the anvil when in inward positions.Type: GrantFiled: February 23, 2009Date of Patent: February 18, 2014Assignee: BTM CorporationInventor: Edwin G. Sawdon
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Patent number: 8459626Abstract: A clamp having a lock is provided. In another aspect, a fail safe lock maintains the position of a clamping member when fluid pressure or other actuating power is undesirably reduced. Another aspect employs teeth on a locking structure which engage matching teeth on a shaft where engagement of the teeth prevent unclamping of a workpiece. In still another aspect, a manual override member disengages a lock in order to unclamp a workpiece.Type: GrantFiled: May 28, 2010Date of Patent: June 11, 2013Assignee: BTM CorporationInventors: Edwin G. Sawdon, Brian D. Petit, Michael D. Miller
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Publication number: 20120137496Abstract: A pierce nut insertion tool is provided. In another aspect, a pierce nut feeding mechanism has a mechanically independent driver actuator from that of a punch. A further aspect of the present tool employs a member, moveable with a punch, that retains a pierce nut prior to fastening of the nut to a workpiece. An additional aspect uses a fluid actuated nut feeder including a piston.Type: ApplicationFiled: December 1, 2011Publication date: June 7, 2012Applicant: BTM CorporationInventors: Edwin G. Sawdon, Stephen E. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Publication number: 20110291341Abstract: A clamp having a lock is provided. In another aspect, a fail safe lock maintains the position of a clamping member when fluid pressure or other actuating power is undesirably reduced. Another aspect employs teeth on a locking structure which engage matching teeth on a shaft where engagement of the teeth prevent unclamping of a workpiece. In still another aspect, a manual override member disengages a lock in order to unclamp a workpiece.Type: ApplicationFiled: May 28, 2010Publication date: December 1, 2011Applicant: BTM CORPORATIONInventors: Edwin G. Sawdon, Brian D. Petit, Michael D. Miller
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Publication number: 20100212131Abstract: A clinching tool is provided. A further aspect of the present application locates an anvil and/or movable die members closer to one lateral outside surface of a die body than the opposite lateral outside surface. In another aspect, an offset clinch die and pneumatic tool are employed. Another aspect includes a die body having an anvil and two linearly movable die members which essentially surround a lateral outside surface of the anvil when in inward positions.Type: ApplicationFiled: February 23, 2009Publication date: August 26, 2010Applicant: BTM CorporationInventor: Edwin G. Sawdon
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Patent number: 7694399Abstract: A sheet fastening apparatus and method are provided. In another aspect of the present invention, a die assembly for forming a joint between sheets of material is disclosed wherein the die assembly includes an anvil, at least one die blade disposed adjacent to and overlapping a punch-side of the anvil, a flexible retainer, and a shield that coaxially and radially surrounds a portion of the anvil and/or die blade.Type: GrantFiled: March 4, 2005Date of Patent: April 13, 2010Assignee: BTM CorporationInventors: Edwin G Sawdon, Steven J Sprotberry
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Patent number: 7685925Abstract: An intensifier is operable to supply force and includes a housing defining a cavity. A ram is slidably positioned within the cavity and partially extends from the housing. The ram is moveable between retracted and extended positions along a longitudinal axis. First and second links are rotatably coupled to one another about an axis of rotation and are selectively moveable between retracted positions where the axis of rotation is not axially aligned with the ram and partially extended positions where the axis of rotation is axially aligned with the ram. The intensifier includes a plurality of power pistons axially aligned with each other and the ram. The power pistons are selectively operable to provide an output force to the ram when the first and second links are in the partially extended positions.Type: GrantFiled: August 15, 2007Date of Patent: March 30, 2010Assignee: BTM CorporationInventors: Edwin G. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Publication number: 20090044962Abstract: An intensifier is operable to supply force and includes a housing defining a cavity. A ram is slidably positioned within the cavity and partially extends from the housing. The ram is moveable between retracted and extended positions along a longitudinal axis. First and second links are rotatably coupled to one another about an axis of rotation and are selectively moveable between retracted positions where the axis of rotation is not axially aligned with the ram and partially extended positions where the axis of rotation is axially aligned with the ram. The intensifier includes a plurality of power pistons axially aligned with each other and the ram. The power pistons are selectively operable to provide an output force to the ram when the first and second links are in the partially extended positions.Type: ApplicationFiled: August 15, 2007Publication date: February 19, 2009Inventors: Edwin G. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Patent number: 7370856Abstract: A clamp includes a body, a lead pin moveable relative to the body and an actuator supported by the body. The actuator is axially moveable between an extended position and a retracted position. The actuator includes a camshaft drivingly coupled to the lead pin. Axial movement of the camshaft causes the lead pin to rotate between a first positioned aligned with a first longitudinal axis and a second position aligned with a second longitudinal axis laterally offset from the first longitudinal axis.Type: GrantFiled: October 4, 2005Date of Patent: May 13, 2008Assignee: BTM CorporationInventors: Edwin G. Sawdon, Michael D. Miller, Brian D. Petit
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Patent number: 7263831Abstract: A pressure intensifier for generating a relatively large force includes a plurality of pistons driven in advancing and retracting directions. The pressure intensifier includes a rod selectively drivable into a cavity to amplify the force acting on one of the pistons. A valve limits fluid flow to control the rate of movement of one of the pistons.Type: GrantFiled: September 29, 2004Date of Patent: September 4, 2007Assignee: BTM CorporationInventors: Edwin G. Sawdon, Steven J. Sprotberry
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Patent number: 7194859Abstract: An intensifier is operable to supply force and includes a housing defining a cavity. A ram is slidably positioned within the cavity and partially extends from the housing. The intensifier also includes a force transfer rod and a plurality of power pistons. The ram is moveable between retracted and extended positions along a longitudinal axis. The force transfer rod is selectively moveable between a retracted position where the force transfer rod is not axially aligned with the ram and an advanced position where the force transfer rod is axially aligned with the ram. The plurality of power pistons are axially aligned with each other and the ram. The power pistons are selectively operable to provide an output force to the ram when the force transfer rod is in the advanced position.Type: GrantFiled: October 18, 2005Date of Patent: March 27, 2007Assignee: BTM CorporationInventors: Edwin G. Sawdon, Steven J. Sprotberry, Brian D. Petit
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Patent number: 7029000Abstract: A clamp and method for locating a clamping workpiece in predetermined location are disclosed. The clamp includes a clamp body, a driving member, a workpiece-locating pin and a clamping member. The driving member is moveable in a first linear direction at least partially inside the clamp body. The workpiece-locating pin is moveable in a second direction substantially perpendicular to the first direction and at least partially externally projects from the body. The clamping member is moveable relative to the workpiece-locating pin in the first direction when moving between a retracted position and a clamping position.Type: GrantFiled: September 7, 2004Date of Patent: April 18, 2006Assignee: BTM CorporationInventors: Brian D. Petit, Edwin G. Sawdon
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Patent number: 7003861Abstract: A flexible retainer for retaining die blades in a tool assembly. The retainer comprises inner and outer walls with the inner wall being generally concentric with and radially spaced inward from the outer wall. The inner wall defines a central opening in the retainer which is configured and adapted to extend radially around the die blades so that the retainer retains the die blades in the die assembly while allowing radial movement of the die blades. The retainer may have at least one channel that extends axially between the inner and outer walls.Type: GrantFiled: September 3, 2004Date of Patent: February 28, 2006Assignee: BTM CorporationInventors: Edwin G. Sawdon, Steven J. Sprotberry, Stephen E. Sawdon
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Patent number: 6996984Abstract: A pressure intensifier for generating a relatively large force includes a plurality of pistons driven in advancing and retracting directions. The pressure intensifier includes a body having a cavity used as an internal fluid reservoir. Furthermore, a damping mechanism limits the relative acceleration between pressure intensifier components during operation.Type: GrantFiled: January 6, 2004Date of Patent: February 14, 2006Assignee: BTM CorporationInventors: Edwin G. Sawdon, Steven J. Sprotberry
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Patent number: 6908077Abstract: A clamping apparatus has a body and an elongated member that is extendable from the body. In another aspect of the present invention, a clamp has a workpiece engaging arm mounted adjacent an end of the elongated member. A further aspect of the present invention causes the elongated member to linearly extend and rotate when advanced.Type: GrantFiled: September 26, 2002Date of Patent: June 21, 2005Assignee: BTM CorporationInventor: Edwin G Sawdon
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Patent number: 6902159Abstract: A sealed pin locating and clamping apparatus includes a body, an actuator moveably supported by the body, a pin mounted to the body and a clamping member drivingly coupled to the actuator. The actuator includes a first rod having an internal cavity and a second rod rotatably positioned within the internal cavity. A portion of the pin is positioned within a cam slot formed in the second rod and the second rod rotates in response to linear movement of the first rod to position the clamping member.Type: GrantFiled: August 21, 2003Date of Patent: June 7, 2005Assignee: BTM CorporationInventors: Edwin G. Sawdon, Brian D. Petit
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Patent number: D557128Type: GrantFiled: September 22, 2005Date of Patent: December 11, 2007Assignee: BTM CorporationInventors: Edwin G. Sawdon, Steven J. Sprotberry