Patents by Inventor Roger Charles Chapman
Roger Charles Chapman 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: 11965489Abstract: The present invention provides a coupling device for coupling a rotary actuator to a mechanical device having a rotatable shaft. The coupling device comprises a spring return module with a first rotatable coupling configured to engage a first portion of the shaft, and a spring engaged with the first rotatable coupling, wherein the first rotatable coupling is rotatable about a rotation axis, and wherein rotation of the rotatable coupling about the rotation axis in a first direction causes mechanical energy to be stored in the spring. The coupling device further comprises an actuator coupling module comprising a second rotatable coupling. The second rotatable coupling is configured to engage a second portion of the shaft, the second rotatable coupling being further engageable with an output of the rotary actuator. The second rotatable coupling is rotatable about the rotation axis, the second rotatable coupling being rotatable relative to the first rotatable coupling about the rotation axis.Type: GrantFiled: May 20, 2022Date of Patent: April 23, 2024Assignee: KINETROL LIMITEDInventor: Roger Charles Chapman
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Publication number: 20220412324Abstract: The present invention provides a coupling device for coupling a rotary actuator to a mechanical device having a rotatable shaft. The coupling device comprises a spring return module with a first rotatable coupling configured to engage a first portion of the shaft, and a spring engaged with the first rotatable coupling, wherein the first rotatable coupling is rotatable about a rotation axis, and wherein rotation of the rotatable coupling about the rotation axis in a first direction causes mechanical energy to be stored in the spring. The coupling device further comprises an actuator coupling module comprising a second rotatable coupling. The second rotatable coupling is configured to engage a second portion of the shaft, the second rotatable coupling being further engageable with an output of the rotary actuator. The second rotatable coupling is rotatable about the rotation axis, the second rotatable coupling being rotatable relative to the first rotatable coupling about the rotation axis.Type: ApplicationFiled: May 20, 2022Publication date: December 29, 2022Inventor: Roger Charles CHAPMAN
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Patent number: 10267294Abstract: A spring return device comprising a rotatable drive coupling configured for releasably engaging a rotatable drive part on a first side of the device and configured for releasably engaging a rotatable drive part on an opposite second side of the device; a spring engaged with the drive coupling; and a retainer that retains the spring; wherein: rotation of the drive coupling in a first direction relative to the retainer causes mechanical energy to be stored in the spring; and the spring return device comprises an integral locking mechanism that is actuatable between a first state in which rotation of the drive coupling relative to the retainer is allowed and a second state in which rotation of the drive coupling relative to the retainer is prevented.Type: GrantFiled: June 29, 2016Date of Patent: April 23, 2019Assignee: KINETROL LIMITEDInventor: Roger Charles Chapman
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Patent number: 10100641Abstract: A vane assembly for use in a rotary vane actuator, the vane assembly comprising: a rotatable vane having a first side and a second side; a vane axle connected to the rotatable vane for converting pressure exerted on the rotatable vane into rotational motion; a vane seal on the first side of the rotatable vane, the vane seal being for sealing the rotatable vane; and a side-plate on the first side of the rotatable vane, the side-plate clamping the vane seal in position; wherein the side-plate comprises: an outer part providing an outer surface of the side-plate, the outer part defining an internal volume; and an inner part filling or substantially filling the internal volume defined by the outer part, the inner part being distinct from the outer part.Type: GrantFiled: November 11, 2016Date of Patent: October 16, 2018Assignee: KINETROL LIMITEDInventor: Roger Charles Chapman
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Publication number: 20180135623Abstract: A vane assembly for use in a rotary vane actuator, the vane assembly comprising: a rotatable vane having a first side and a second side; a vane axle connected to the rotatable vane for converting pressure exerted on the rotatable vane into rotational motion; a vane seal on the first side of the rotatable vane, the vane seal being for sealing the rotatable vane; and a side-plate on the first side of the rotatable vane, the side-plate clamping the vane seal in position; wherein the side-plate comprises: an outer part providing an outer surface of the side-plate, the outer part defining an internal volume; and an inner part filling or substantially filling the internal volume defined by the outer part, the inner part being distinct from the outer part.Type: ApplicationFiled: November 11, 2016Publication date: May 17, 2018Inventor: Roger Charles CHAPMAN
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Publication number: 20170002798Abstract: A spring return device comprising a rotatable drive coupling configured for releasably engaging a rotatable drive part on a first side of the device and configured for releasably engaging a rotatable drive part on an opposite second side of the device; a spring engaged with the drive coupling; and a retainer that retains the spring; wherein: rotation of the drive coupling in a first direction relative to the retainer causes mechanical energy to be stored in the spring; and the spring return device comprises an integral locking mechanism that is actuatable between a first state in which rotation of the drive coupling relative to the retainer is allowed and a second state in which rotation of the drive coupling relative to the retainer is prevented.Type: ApplicationFiled: June 29, 2016Publication date: January 5, 2017Inventor: Roger Charles CHAPMAN
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Patent number: 9085978Abstract: A rotary vane type actuator includes a vane assembly for converting pressure from a pressurized medium within the actuator into rotational movement. The vane assembly has a rotatable vane and a vane seal for preventing leakage of pressurized medium through or around the vane assembly. A side-plate is attached to the rotatable vane and the side-plate has a limiting protrusion that abuts the vane to maintain a gap between the vane and the side-plate so that the seal in the gap is not extruded from between the vane and side-plate.Type: GrantFiled: December 1, 2010Date of Patent: July 21, 2015Assignee: KINETROL LIMITEDInventor: Roger Charles Chapman
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Publication number: 20120137873Abstract: A rotary vane type actuator includes a vane assembly for converting pressure from a pressurised medium within the actuator into rotational movement. The vane assembly has a rotatable vane and a vane seal for preventing leakage of pressurised medium through or around the vane assembly. A side-plate is attached to the rotatable vane and the side-plate has a limiting protrusion that abuts the vane to maintain a gap between the vane and the side-plate so that the seal in the gap is not extruded from between the vane and side-plate.Type: ApplicationFiled: December 1, 2010Publication date: June 7, 2012Inventor: Roger Charles Chapman
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Patent number: 6116909Abstract: An apparatus for teaching infants how to tie shoe laces is in the form of an enlarged replica of a shoe. The enlarged replica of the shoe has a sole portion, a heel portion, and a upper portion. The upper portion has several pairs of eyelets whereby a shoe lace is laced onto the upper portion. Each of the sole portion, heel portion and upper portion have strategically positioned fasteners that permit the sole portion, heel portion and upper portion to be assembled to form the shoe.Type: GrantFiled: July 22, 1999Date of Patent: September 12, 2000Inventor: Roger Charles Chapman