Patents by Inventor David Brutscher
David Brutscher 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: 10646937Abstract: A method of using a reciprocating saw blade having an elongated body with a front body portion and a rear body portion, each having a front end, a rear end, an elongated cutting edge extending between the front and rear ends and a back edge opposite the cutting edge. A first tang that extends from the rear end of the rear body portion may be coupled to a reciprocating saw. The saw blade may be removed from reciprocating saw, and a second tang, which extends from the rear end of the front body portion, may be exposed by breaking off an entirety of the rear body portion in a single integral piece from the front body portion. The front body portion, without the rear body portion, may be coupled to the reciprocating saw by coupling the exposed second tang to the reciprocating saw.Type: GrantFiled: December 13, 2017Date of Patent: May 12, 2020Assignee: BLACK & DECKER INC.Inventors: David Muti, David Brutscher, Malek George, John Wells
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Patent number: 10363619Abstract: A reciprocating saw blade for improving vibration and cordless runtime includes an elongated body having a front end portion and a rear end portion. An elongated cutting edge extends from the front end portion to the rear end portion and defines a longitudinal axis. An opposite non-cutting back edge extending from the front end portion to the rear end portion. The body has a thickness of approximately 0.89 mm to approximately 1.15 mm. A tang coupled to the rear end portion is configured to be coupled to a tool holder of a powered reciprocating saw. The cutting edge comprises a plurality of teeth and gullets. The teeth have a kerf width of approximately 1.29 mm to approximately 1.56 mm and are arranged in a pattern of alternating tooth pitch of a smaller first tooth pitch and a larger second tooth pitch.Type: GrantFiled: May 25, 2016Date of Patent: July 30, 2019Assignee: BLACK & DECKER INC.Inventors: Malek George, John P. Wells, David Brutscher, James R. Niblett, David N. Johnson
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Patent number: 10279407Abstract: A circular saw blade includes a circular plate having a diameter, a thickness, a left face, a right face, a peripheral rim, and a central opening. A plurality of alternating teeth and gullets are disposed about the peripheral rim, each tooth having a front face facing generally toward an adjacent gullet in the cutting direction and a recess defined in the front face. A plurality of cutting inserts are affixed in the recesses in the teeth. Each insert has rake face facing generally toward the adjacent gullet in the cutting direction, a relief face extending generally toward the adjacent top face, and a cutting edge at a junction between the relief face and the rake face. Each rake face is disposed at a hook angle. The relief faces include unbeveled relief faces, left-beveled relief faces, and a right-beveled relief faces arranged in an alternating top bevel with raker pattern.Type: GrantFiled: June 10, 2016Date of Patent: May 7, 2019Assignee: BLACK & DECKER INC.Inventors: David Brutscher, James R. Niblett, David N. Johnson, Sajid A. Roomy, John P. Wells
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Publication number: 20180099342Abstract: This application discloses a method of using a reciprocating saw blade having an elongated body with a front body portion and a rear body portion, each body portion having a front end, a rear end, an elongated cutting edge extending between the front end and the rear end and a back edge opposite the cutting edge. The saw blade may be coupled to the reciprocating saw by coupling a first tang that extends from the rear end of the rear body portion to the reciprocating saw. The saw blade may be removed from reciprocating saw, and a second tang, which extends from the rear end of the front body portion, may be exposed by breaking off an entirety of the rear body portion in a single integral piece from the front body portion. The front body portion, without the rear body portion, may be coupled to the reciprocating saw by coupling the exposed second tang to the reciprocating saw.Type: ApplicationFiled: December 13, 2017Publication date: April 12, 2018Inventors: David MUTI, David BRUTSCHER, Malek GEORGE, John WELLS
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Patent number: 9884380Abstract: A saw blade includes an elongated body having a front end, a rear end, an elongated cutting edge extending between the front edge and the rear edge and defining a longitudinal axis, and a back edge opposite the cutting edge. A first tang is coupled to the rear end of the body and configured to couple the saw blade to a saw. The first tang faces a rearward direction away from the front end of the body. A second tang is defined in an intermediate portion of the body and configured to couple the saw blade to a saw. The second tang also faces the rearward direction. The second tang can be exposed by breaking off a portion of the body.Type: GrantFiled: June 12, 2015Date of Patent: February 6, 2018Assignee: Black & Decker Inc.Inventors: David Muti, David Brutscher, Malek George, John Wells
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Patent number: 9821390Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.Type: GrantFiled: September 12, 2016Date of Patent: November 21, 2017Assignee: BLACK & DECKER INC.Inventors: David Brutscher, Sajid A. Roomy, John P. Wells
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Publication number: 20170120356Abstract: A reciprocating saw blade for improving vibration and cordless runtime includes an elongated body having a front end portion and a rear end portion. An elongated cutting edge extends from the front end portion to the rear end portion and defines a longitudinal axis. An opposite non-cutting back edge extending from the front end portion to the rear end portion. The body has a thickness of approximately 0.89 mm to approximately 1.15 mm. A tang coupled to the rear end portion is configured to be coupled to a tool holder of a powered reciprocating saw. The cutting edge comprises a plurality of teeth and gullets. The teeth have a kerf width of approximately 1.29 mm to approximately 1.56 mm and are arranged in a pattern of alternating tooth pitch of a smaller first tooth pitch and a larger second tooth pitch.Type: ApplicationFiled: May 25, 2016Publication date: May 4, 2017Inventors: Malek GEORGE, John P. WELLS, David BRUTSCHER, James R. NIBLETT, David N. JOHNSON
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Publication number: 20170120355Abstract: A circular saw blade includes a circular plate having a diameter, a thickness, a left face, a right face, a peripheral rim, and a central opening couplable to a powered saw. A plurality of alternating teeth and gullets are disposed about the peripheral rim, each tooth having a front face facing generally toward an adjacent gullet in the cutting direction and a recess defined in the front face. A plurality of cutting inserts are affixed in the recesses in the teeth. Each insert has rake face facing generally toward the adjacent gullet in the cutting direction, a relief face extending generally toward the adjacent top face, and a cutting edge at a junction between the relief face and the rake face. Each rake face is disposed at a hook angle ? between the rake face and a radius of the circular plate intersecting the cutting edge.Type: ApplicationFiled: June 10, 2016Publication date: May 4, 2017Inventors: David BRUTSCHER, James R. NIBLETT, David N. JOHNSON, Sajid A. ROOMY, John P. WELLS
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Publication number: 20170028488Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.Type: ApplicationFiled: September 12, 2016Publication date: February 2, 2017Inventors: David BRUTSCHER, Sajid A. ROOMY, John P. WELLS
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Patent number: 9463518Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.Type: GrantFiled: January 23, 2012Date of Patent: October 11, 2016Assignee: Black & Decker Inc.Inventors: David Brutscher, Sajid A. Roomy, John Wells
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Publication number: 20150367434Abstract: A saw blade includes an elongated body having a front end, a rear end, an elongated cutting edge extending between the front edge and the rear edge and defining a longitudinal axis, and a back edge opposite the cutting edge. A first tang is coupled to the rear end of the body and configured to couple the saw blade to a saw. The first tang faces a rearward direction away from the front end of the body. A second tang is defined in an intermediate portion of the body and configured to couple the saw blade to a saw. The second tang also faces the rearward direction. The second tang can be exposed by breaking off a portion of the body.Type: ApplicationFiled: June 12, 2015Publication date: December 24, 2015Inventors: David MUTI, David BRUTSCHER, Malek GEORGE, John WELLS
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Publication number: 20120192694Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.Type: ApplicationFiled: January 23, 2012Publication date: August 2, 2012Applicant: BLACK & DECKER INC.Inventors: David Brutscher, Sajid A. Roomy, John Wells
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Patent number: 6286406Abstract: A cutting tool insert includes a cutting tip mounted into a first recess of an injection molded hard refractory compound insert having a second recess of preselected size and shape for locating the insert to a cutting tool. A preferred cutting tip is a diamond and a preferred hard refractory compound is a tungsten carbide with a cobalt binder.Type: GrantFiled: February 12, 1999Date of Patent: September 11, 2001Assignee: Credo Tool CompanyInventors: Ramamurthy K. Viswanadham, Carl Shumaker, David Brutscher, Donald C. Pennington, Jr.
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Patent number: D622120Type: GrantFiled: August 27, 2009Date of Patent: August 24, 2010Assignee: Black & Decker Inc.Inventors: David Brutscher, John Wells, Bao Hua Mao
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Patent number: D677290Type: GrantFiled: February 16, 2011Date of Patent: March 5, 2013Assignee: Black & Decker Inc.Inventors: David Brutscher, John Wells, Sajid A. Roomy
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Patent number: D677291Type: GrantFiled: February 16, 2011Date of Patent: March 5, 2013Assignee: Black & Decker Inc.Inventors: David Brutscher, John Wells, Sajid A. Roomy
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Patent number: D813635Type: GrantFiled: December 13, 2016Date of Patent: March 27, 2018Assignee: Black & Decker Inc.Inventors: David Brutscher, John P. Wells