Patents by Inventor Roy Lee Hayford
Roy Lee Hayford 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: 7124862Abstract: A brake slack adjuster is provided that includes a housing having an opening with a gear arranged within the opening. The housing includes a bore adjacent to the opening. A worm gear has an axis disposed within the bore and is an engagement with the gear. The worm gear has an end portion with helical teeth. An actuator loosely is arranged within the bore and includes an inner surface with complementary helical teeth engaging the helical teeth of the worm gear. An actuator rod includes an end arranged within the actuator aperture. The rod end is captured in the actuator by a retainer. A pawl assembly is supported by the housing and coacts with the actuator for retaining the actuator in a rotational position relative to the axis. Biasing members are arranged between the actuator and housing bore to urge the actuator engagement with the worm gear end portion.Type: GrantFiled: September 25, 2003Date of Patent: October 24, 2006Assignee: ArvinMeritor Technology, LLCInventors: Roy Lee Hayford, Joseph A. Kay, Thomas M. Cory
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Patent number: 6715589Abstract: A self-servoing disc brake assembly is provided that includes a driven rotor member having a first inner surface with a plurality of first pockets. The driven rotor member also includes a first friction surface spaced from the first inner surface. A movable rotor member is supported on the driven rotor member and is movable relative to the driven rotor member between non-servoed and servoed positions. The rotor members are spaced a first distance in the non-servo position, and the rotor members are spaced a second distance which is greater than a first distance in the servo position. The movable rotor member includes a second inner surface with a plurality of second pockets adjacent to the first inner surface and a friction surface spaced from the second inner surface. A plurality of balls are arranged between the first and second pockets with at least one of the first and second pockets being ramped.Type: GrantFiled: February 9, 2001Date of Patent: April 6, 2004Assignee: Meritor Heavy Vehicle Systems, LLCInventors: Neil Williams, Juergen Dreher, Roy Lee Hayford, Christos T. Kyrtsos, Wilfried Giering, David L. Brademeyer, Gerald D. Anderson
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Patent number: 6502671Abstract: The braking mechanism comprises a toggle lever, a brake pad, and an incline. An incline actuates the braking mechanism by forcing an extension of the toggle lever. As the toggle lever extends, it pushes the brake pad closer to the surface to be slowed. Multiple toggle levers may be used to distribute the force across the brake pad. This configuration allows a single input from the incline to actuate both toggle levers. By adjusting the width of the incline actuating the toggle lever, the force on the brake pad may be adjusted.Type: GrantFiled: January 18, 2001Date of Patent: January 7, 2003Assignee: Meritor Heavy Vehicle Systems, LLCInventors: Roy Lee Hayford, Neil Williams, Juergen Dreher, Christos T Kyrtsos, Wilfred Giering, Gerald D. Anderson, David Brademeyer
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Patent number: 6481542Abstract: A brake adjuster is provided for a vehicle brake such as for heavy duty vehicle. The brake adjuster includes a brake module that produces an electrical signal for adjusting the vehicle brake. The heavy duty vehicle brake typically includes a pair of pistons each having first and second portions that are movable relative to one another. A friction element or brake pad is arranged proximate to the second portion and is movable from a desired position to a worn position as the brake pads wear during operation of the vehicle. In one embodiment of the present invention, the first and second portions are slip fit within a sleeve assembly. At least one adjustment member is arranged between the first and second portions. The adjustment member is constructed from a material which expands in response to an electrical signal, such as a magnetostrictive or a piezoelectric material.Type: GrantFiled: February 19, 2001Date of Patent: November 19, 2002Assignee: Meritor Heavy Vehicle Systems, LLC.Inventors: Wilfried Giering, Roy Lee Hayford, Neil Williams, Juergen Dreher, Christos T. Kyrtsos, Gerald D. Anderson, David L. Brademeyer
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Publication number: 20020117363Abstract: A multi disc brake assembly employing a combination fixed rotor and a plurality of axially moving floating rotors. The fixed rotor is attached to and rotates in combination with a wheel hub. The plurality of floating rotors are slidingly attached to the fixed rotor and a plurality of stationary friction surfaces are interleaved therebetween. The stationary friction surfaces are keyed to the caliper housing allowing for axial movement. The floating rotors are connected to the fixed rotor by pins, or are axially slidingly keyed at the inner radial periphery to splines on the fixed rotor.Type: ApplicationFiled: February 26, 2001Publication date: August 29, 2002Applicant: Meritor Heavy Vehicle Systems, LLCInventors: Roy Lee Hayford, Juergen Dreher, Wilfried Giering, David L. Brademeyer, Neil Williams, Christos T. Kyrtsos, Gerald D. Anderson
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Publication number: 20020112927Abstract: A brake adjuster is provided for a vehicle brake such as for heavy duty vehicle. The brake adjuster includes a brake module that produces an electrical signal for adjusting the vehicle brake. The heavy duty vehicle brake typically includes a pair of pistons each having first and second portions that are movable relative to one another. A friction element or brake pad is arranged proximate to the second portion and is movable from a desired position to a worn position as the brake pads wear during operation of the vehicle. In one embodiment of the present invention, the first and second portions are slip fit within a sleeve assembly. At least one adjustment member is arranged between the first and second portions. The adjustment member is constructed from a material which expands in response to an electrical signal, such as a magnetostrictive or a piezoelectric material.Type: ApplicationFiled: February 19, 2001Publication date: August 22, 2002Applicant: Meritor Heavy Vehicle Systems, LLCInventors: Wilfried Giering, Roy Lee Hayford, Neil Williams, Juergen Dreher, Christos T. Kyrtsos, Gerald D. Anderson, David L. Brademeyer
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Publication number: 20020108819Abstract: A self-servoing disc brake assembly is provided that includes a driven rotor member having a first inner surface with a plurality of first pockets. The driven rotor member also includes a first friction surface spaced from the first inner surface. A movable rotor member is supported on the driven rotor member and is movable relative to the driven rotor member between non-servoed and servoed positions. The friction surfaces are spaced a first distance in the non-servo position, and the friction surfaces are spaced a second distance which is greater than a first distance in the servo position. The movable rotor member includes a second inner surface with a plurality of second pockets adjacent to the first inner surface and a friction surface spaced from the second inner surface. A plurality of balls are arranged between the first and second pockets with at least one of the first and second pockets being ramped.Type: ApplicationFiled: February 9, 2001Publication date: August 15, 2002Applicant: Meritor Heavy Vehicle Systems, LLCInventors: Neil Williams, Juergen Dreher, Roy Lee Hayford, Christos T. Kyrtsos, Wilfried Giering, David L. Brademeyer, Gerald D. Anderson
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Publication number: 20020092716Abstract: The braking mechanism comprises a toggle lever, a brake pad, and an incline. An incline actuates the braking mechanism by forcing an extension of the toggle lever. As the toggle lever extends, it pushes the brake pad closer to the surface to be slowed. Multiple toggle levers may be used to distribute the force across the brake pad. This configuration allows a single input from the incline to actuate both toggle levers. By adjusting the width of the incline actuating the toggle lever, the force on the brake pad may be adjusted.Type: ApplicationFiled: January 18, 2001Publication date: July 18, 2002Applicant: Meritor Heavy Vehicle Systems, LLCInventors: Roy Lee Hayford, Neil Williams, Juergen Dreher, Christos T. Kyrtsos, Wilfried Giering, Gerald D. Anderson, David Brademeyer
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Patent number: 6357563Abstract: A vehicle braking system includes a device for cooling the components of the brake assembly. The air source that is normally used to activate the brake assembly components is coupled with a plurality of flexible conduits that direct air toward one or more of the brake assembly components. A high velocity air nozzle preferably is provided at the end of each conduit. The air from the compressed air source is maintained in a compressed state through the conduits and decompresses as it exits the discharge nozzles. The decompression of the air through the nozzles results in cooling the air and the nearby brake components at which the air is directed.Type: GrantFiled: March 29, 2001Date of Patent: March 19, 2002Assignee: Meritor Heavy Vehicle Technology, L.L.C.Inventors: Roy Lee Hayford, Neil Williams, Juergen Dreher, Christos T. Kyrtsos, Wilfried Giering, Gerald D. Anderson, David Brademeyer