Patents by Inventor Matthew W. Crump
Matthew W. Crump 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: 20240026956Abstract: Tensioning devices with at least a portion of the tensioner face incorporating increased compliance of at least two pitch lengths in distance that meets compliance geometry requirements and applied force tensioner face stiffness requirements to decrease NVH through the incorporation of a cavity within the body of the tensioning deice, incorporation of a blade spring within the cavity of the tensioning device, incorporation of an elastomer within the cavity of the tensioning device, locating a compliance portion of the tensioner face at one end of the tensioner face of the tensioning device, and a spring utilized as a tensioning device with an elastomer face.Type: ApplicationFiled: July 14, 2022Publication date: January 25, 2024Inventors: Matthew W. Crump, Christopher Van Loon, Joseph P. Goodsell
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Publication number: 20230407949Abstract: A tooth jump protection device is used to control chain slack and delay the torque at which chain jump occurs, thus increasing jump torque performance. The tooth jump protection device is preferably mounted to the transfer case.Type: ApplicationFiled: August 30, 2023Publication date: December 21, 2023Inventors: Matthew W. Crump, Christopher Van Loon, Sean R Simmons, Timothy K. White, Joseph P. Goodsell, Bradley F. Adams
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Publication number: 20230383819Abstract: A pattern for application to the face of the tensioner arm, guide or snubber in contact with a chain to intentionally break up the chain contact force between the back of the chain links and the tensioner arm, guide or snubber face. This is done to prevent alignment with the chain related orders which are causing NVH within the chain system or to increase overall NVH to obscure chain related orders.Type: ApplicationFiled: May 31, 2022Publication date: November 30, 2023Inventors: Matthew W. Crump, Christopher Van Loon, Timothy K. White, Joseph P. Goodsell
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Patent number: 11796040Abstract: A chain tensioning device which combats natural build-up of chain slack. In controlling the chain slack, the torque at which a chain jumps occurs is delayed resulting in a higher jump torque performance.Type: GrantFiled: January 20, 2022Date of Patent: October 24, 2023Assignee: BORGWARNER INC.Inventors: Matthew W. Crump, Christopher Van Loon, Sean R. Simmons, Joseph P. Goodsell
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Publication number: 20220235852Abstract: A tooth jump protection device is used to control chain slack and delay the torque at which chain jump occurs, thus increasing jump torque performance. The tooth jump protection device is preferably mounted to the transfer case.Type: ApplicationFiled: January 21, 2022Publication date: July 28, 2022Inventors: Matthew W. CRUMP, Christopher VAN LOON, Sean R. SIMMONS, Timothy K. WHITE, Joseph P. GOODSELL, Bradley F. ADAMS
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Publication number: 20220235851Abstract: A chain tensioning device which combats natural build-up of chain slack. In controlling the chain slack, the torque at which a chain jumps occurs is delayed resulting in a higher jump torque performance.Type: ApplicationFiled: January 20, 2022Publication date: July 28, 2022Inventors: Matthew W. CRUMP, Christopher VAN LOON, Sean R. SIMMONS, Joseph P. GOODSELL
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Publication number: 20210116011Abstract: Provided is a sprocket having a body formed by a powder metallurgy process with a predetermined density and vibration energy absorbing properties, and teeth with a greater density than the density of the body, and a method of making the same. The sprocket minimizes mechanical vibration during a chain-to-sprocket tooth contact. The teeth of the sprocket have a higher density than the body of the sprocket.Type: ApplicationFiled: December 24, 2020Publication date: April 22, 2021Inventor: Matthew W. Crump
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Patent number: 10781892Abstract: A press-fit check valve for a hydraulic tensioner includes a retainer, a seat, a ball, and a spring. The seat of the check valve is press-fit against the wall of the check valve counterbore of the hydraulic tensioner body. In some embodiments, the seat is cup-shaped to provide a predetermined level of press force retention of the press-fit check valve. In some embodiments, the seat includes a plurality of legs separated by leg openings. In some embodiments, a backflow path is provided past the press-fit check valve by a combination of the leg openings and at least one backflow slot through a flange of the retainer. In some embodiments, a lip at the outer end of the check valve counterbore prevents the seat from backing out of the check valve counterbore.Type: GrantFiled: July 25, 2016Date of Patent: September 22, 2020Assignee: BorgWarner Inc.Inventors: Keith B. Cobb, Matthew W. Crump, Dale N. Smith
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Publication number: 20200003292Abstract: Provided is a sprocket having a body formed by a powder metallurgy process with a predetermined density and vibration energy absorbing properties, and teeth with a greater density than the density of the body, and a method of making the same. The sprocket minimizes mechanical vibration during a chain-to-sprocket tooth contact. The teeth of the sprocket have a higher density than the body of the sprocket.Type: ApplicationFiled: June 29, 2018Publication date: January 2, 2020Inventor: Matthew W. Crump
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Patent number: 10428913Abstract: A number of variations may include a product comprising: an orifice flow valve comprising: a disk, wherein the disk comprises at least one orifice which is constructed and arranged to direct a forward flow of a fluid through the at least one orifice and to impede a backflow of the fluid through the at least one orifice.Type: GrantFiled: January 27, 2015Date of Patent: October 1, 2019Assignee: BorgWarner Inc.Inventors: Matthew W. Crump, Keith B. Cobb
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Patent number: 10400870Abstract: A product for applying tension is disclosed. A block may have a first passage opening into the block. A body may have a first manifold and may be positioned against the block so that the first passage is open to the first manifold. The body may have a flow path for providing fluid from the first manifold to a second manifold and there through to a pressure chamber. The flow path may include a series of channels and may be configured to allow substantially unimpeded flow from the first manifold to the second manifold, and to impede flow from the second manifold to the first manifold. The flow path may be free of movable components.Type: GrantFiled: October 14, 2015Date of Patent: September 3, 2019Assignee: BorgWarner Inc.Inventors: Matthew W. Crump, Keith B. Cobb
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Patent number: 10309514Abstract: A number of variations may include a sprocket using one or more slot(s) and/or compressive or elastic material in order to lower the NVH. A number of variations may include a sprocket which isolates the vibrations created by the impact of the chain with the sprocket so that the vibrations are prevented from traveling into the shaft.Type: GrantFiled: February 18, 2014Date of Patent: June 4, 2019Assignee: BorgWarner Inc.Inventors: Matthew W. Crump, John Sarick
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Patent number: 10215296Abstract: A pressure relief valve (10) in a hydraulic tensioner for an endless loop power transmission member and method of assembly can include a check valve member (18) positioned within a fluid passage (14) defined by a housing (12) for movement toward and away from a valve seat (16) defined by the housing (12), a spring (20) normally biasing the check valve member (18) toward the valve seat (16), and a spring retainer (22) assembled within the fluid passage (14) to a variable depth in response to feedback pressure for automatically adjusting a biasing force of the assembled spring (20) to compensate for tolerances effecting a relief pressure value of an assembled pressure relief valve and allowing control of the relief pressure value to be within a predetermined range with respect to a predetermined target relief pressure value for driving the check valve member (18) away from the valve seat (16).Type: GrantFiled: July 27, 2015Date of Patent: February 26, 2019Assignee: BorgWarner Inc.Inventor: Matthew W. Crump
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Patent number: 10208838Abstract: A product for applying tension is disclosed. The product may include a block with a first bore opening into to the block. A body may be provided having a second bore substantially larger in diameter than the first bore. The body may be positioned against the block so that the first bore is open to the second bore. The body may have a passage for providing fluid to a pressure chamber from the second bore. The passage may be arranged to open to the second bore and form a tangent to the second bore. Fluid may flow from the first bore to the pressure chamber through the second bore and the passage substantially unimpeded. Fluid flow is impeded from the passage to the first bore as a result of the configuration of the first bore, second bore and passage.Type: GrantFiled: October 14, 2015Date of Patent: February 19, 2019Assignee: BorgWarner Inc.Inventors: Matthew W. Crump, Keith B. Cobb
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Publication number: 20190003557Abstract: A press-fit check valve for a hydraulic tensioner includes a retainer, a seat, a ball, and a spring. The seat of the check valve is press-fit against the wall of the check valve counterbore of the hydraulic tensioner body. In some embodiments, the seat is cup-shaped to provide a predetermined level of press force retention of the press-fit check valve. In some embodiments, the seat includes a plurality of legs separated by leg openings. In some embodiments, a backflow path is provided past the press-fit check valve by a combination of the leg openings and at least one backflow slot through a flange of the retainer. In some embodiments, a lip at the outer end of the check valve counterbore prevents the seat from backing out of the check valve counterbore.Type: ApplicationFiled: July 25, 2016Publication date: January 3, 2019Inventors: Keith B. COBB, Matthew W. CRUMP, Dale N. SMITH
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Patent number: 10006524Abstract: An integrated valve for a hydraulic tensioner includes a pressure relief valve with an integrated disk check valve surrounding the pressure relief valve. A hydraulic tensioner includes a housing with a bore and a hollow piston slidably received within the bore. A piston spring biases the piston in a direction toward a power transmission device. The tensioner also includes an integrated check valve in a body of the housing. The integrated check valve includes a pressure relief valve mechanism and a disk check valve mechanism surrounding a circumference of the pressure relief valve mechanism. The pressure relief valve mechanism permits transfer of pressurized fluid from a piston chamber formed by the hollow piston to the source of pressurized fluid and the check valve mechanism permits transfer of pressurized fluid from the source of pressurized fluid to the piston chamber.Type: GrantFiled: August 17, 2016Date of Patent: June 26, 2018Assignee: BorgWarner Inc.Inventors: Matthew W. Crump, Toru Shinoyama, Seongdo Hong
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Publication number: 20180119832Abstract: A check valve assembly (20) and method of assembly can include a hydraulic tensioner (10) having a body (12) defining an inlet fluid passage with an inlet fluid passage port (14a) having a valve seat (14b). The check valve assembly (20) can include a retainer (22) located within the body (12), a valve disk (30) having a sealing surface (32), and a biasing member (34) normally biasing the valve disk (30) toward the inlet fluid passage port (14a). The retainer (22) can define an outlet passage (24). The valve disk (30) and the biasing member (34) can be received within a cavity (26) of the retainer (22). The biasing member (34) can allow reciprocal movement of the valve disk (30) from a closed seated position sealing the inlet fluid passage port (14a) to an open unseated position spaced from the inlet fluid passage port (14a) opening the inlet passage.Type: ApplicationFiled: May 5, 2016Publication date: May 3, 2018Inventors: Matthew W. Crump, Glenn E. Swanson, Keith B. Cobb
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Publication number: 20170321785Abstract: A product for applying tension is disclosed. A block may have a first passage opening into the block. A body may have a first manifold and may be positioned against the block so that the first passage is open to the first manifold. The body may have a flow path for providing fluid from the first manifold to a second manifold and there through to a pressure chamber. The flow path may include a series of channels and may be configured to allow substantially unimpeded flow from the first manifold to the second manifold, and to impede flow from the second manifold to the first manifold. The flow path may be free of movable components.Type: ApplicationFiled: October 14, 2015Publication date: November 9, 2017Inventors: Matthew W. CRUMP, Keith B. COBB
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Publication number: 20170314651Abstract: A product for applying tension is disclosed. The product may include a block with a first bore opening into to the block. A body may be provided having a second bore substantially larger in diameter than the first bore. The body may be positioned against the block so that the first bore is open to the second bore. The body may have a passage for providing fluid to a pressure chamber from the second bore. The passage may be arranged to open to the second bore and form a tangent to the second bore. Fluid may flow from the first bore to the pressure chamber through the second bore and the passage substantially unimpeded. Fluid flow is impeded from the passage to the first bore as a result of the configuration of the first bore, second bore and passage.Type: ApplicationFiled: October 14, 2015Publication date: November 2, 2017Applicant: BorgWarner Inc.Inventors: Matthew W. CRUMP, Keith B. COBB
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Publication number: 20170227135Abstract: A pressure relief valve (10) in a hydraulic tensioner for an endless loop power transmission member and method of assembly can include a check valve member (18) positioned within a fluid passage (14) defined by a housing (12) for movement toward and away from a valve seat (16) defined by the housing (12), a spring (20) normally biasing the check valve member (18) toward the valve seat (16), and a spring retainer (22) assembled within the fluid passage (14) to a variable depth in response to feedback pressure for automatically adjusting a biasing force of the assembled spring (20) to compensate for tolerances effecting a relief pressure value of an assembled pressure relief valve and allowing control of the relief pressure value to be within a predetermined range with respect to a predetermined target relief pressure value for driving the check valve member (18) away from the valve seat (16).Type: ApplicationFiled: July 27, 2015Publication date: August 10, 2017Inventor: Matthew W. CRUMP