Patents by Inventor Todd Douglas Coonrad
Todd Douglas Coonrad 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).
-
Patent number: 6799359Abstract: A striking tool having a handle engaged in an eye in a head uses a metal strongback unit engaged in a slot the handle to secure the handle in the eye of the head. The metal strongback unit has openings in a web that fits in the slot in the handle that allow wedges to be driven into the handle in a manner that both the handle end and the web of the strongback unit are spread. Metal of the strongback unit urges against an inside surface of the head in the eye to form a secure fit. In a preferred embodiment the strongback unit has metal sides that may extend below the head and provide metal surfaces for overstrike protection.Type: GrantFiled: December 13, 2002Date of Patent: October 5, 2004Assignee: Douglas Tool, Inc.Inventor: Todd Douglas Coonrad
-
Patent number: 6615691Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: October 7, 2002Date of Patent: September 9, 2003Assignee: Douglas Tool, Inc.Inventor: Todd Douglas Coonrad
-
Publication number: 20030088964Abstract: A striking tool having a handle engaged in an eye in a head. uses a metal strongback unit engaged in a slot the handle to secure the handle in the eye of the head. The metal strongback unit has openings in a web that fits in the slot in the handle that allow wedges to be driven into the handle in a manner that both the handle end and the web of the strongback unit are spread. Metal of the strongback unit urges against an inside surface of the head in the eye to form a secure fit. In a preferred embodiment the strongback unit has metal sides that may extend below the head and provide metal surfaces for overstrike protection.Type: ApplicationFiled: December 13, 2002Publication date: May 15, 2003Inventor: Todd Douglas Coonrad
-
Publication number: 20030037641Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: ApplicationFiled: October 7, 2002Publication date: February 27, 2003Inventor: Todd Douglas Coonrad
-
Patent number: 6494119Abstract: A striking tool having a handle engaged in an eye in a head uses a metal strongback unit engaged in a slot the handle to secure the handle in the eye of the head. The metal strongback unit has openings in a web that fits in the slot in the handle that allow wedges to be driven into the handle in a manner that both the handle end and the web of the strongback unit are spread. Metal of the strongback unit urges against an inside surface of the head in the eye to form a secure fit. In a preferred embodiment the strongback unit has metal sides that may extend below the head and provide metal surfaces for overstrike protection.Type: GrantFiled: April 6, 2000Date of Patent: December 17, 2002Assignee: Douglas Tool, Inc.Inventor: Todd Douglas Coonrad
-
Patent number: 6460430Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: March 20, 2001Date of Patent: October 8, 2002Assignee: Douglas Tool, Inc.Inventor: Todd Douglas Coonrad
-
Publication number: 20010010182Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: ApplicationFiled: March 20, 2001Publication date: August 2, 2001Inventor: Todd Douglas Coonrad
-
Patent number: 6250181Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: August 7, 2000Date of Patent: June 26, 2001Assignee: Douglas Tools, Inc.Inventor: Todd Douglas Coonrad
-
Patent number: 6176156Abstract: A traction pattern for a striking face of a striking tool has a plurality of indentions in the striking face, the indentions each forming a rectangular interface at the striking face. The indentions are arranged in a rectangular matrix in the striking face, producing thereby a striking surface being the areas at the striking face between the interfaces of the indentions at the striking face. The indentions can be in the form of four-sided truncated pyramids, each indention therefore having a rectangular bottom surface and four sides extending at a common obtuse angle from the bottom surface. Several unique traction surface patterns are taught, being formed by spacing between indentions and special treatment of the traction surface between the intersections of the indentions.Type: GrantFiled: September 24, 1999Date of Patent: January 23, 2001Assignee: Douglas Tool Inc.Inventor: Todd Douglas Coonrad
-
Patent number: 6131488Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: November 4, 1999Date of Patent: October 17, 2000Assignee: Douglas Tool, Inc.Inventor: Todd Douglas Coonrad
-
Patent number: 5988019Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: January 19, 1999Date of Patent: November 23, 1999Assignee: Douglas Tool, LLCInventor: Todd Douglas Coonrad
-
Patent number: 5860334Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: April 21, 1998Date of Patent: January 19, 1999Inventor: Todd Douglas Coonrad
-
Patent number: 5768956Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.Type: GrantFiled: March 28, 1996Date of Patent: June 23, 1998Inventor: Todd Douglas Coonrad
-
Patent number: D442048Type: GrantFiled: February 8, 2000Date of Patent: May 15, 2001Assignee: Douglas Tools, IncInventor: Todd Douglas Coonrad
-
Patent number: D420268Type: GrantFiled: June 20, 1997Date of Patent: February 8, 2000Inventor: Todd Douglas Coonrad