Patents by Inventor Peter Woodhead
Peter Woodhead 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: 11603938Abstract: A clamp assembly to secure a yoke to a valve body of a knife gate valve is provided. The clamp assembly can include a bolt that is configured to extend through a first bushing, a first spring member, a first side wall of the yoke, the valve body, a second side wall of the yoke, a second spring member, and a second bushing. The clamp assembly can be configured to pin the yoke to the valve body, apply a pressure-containing preload to the valve body via the first and second bushings, and compress the first spring member between the first bushing and the first side wall of the yoke and the second spring member between the second bushing and the second side wall of the yoke.Type: GrantFiled: April 11, 2022Date of Patent: March 14, 2023Assignee: Emerson Automation Solutions Final Control US LPInventors: Kenneth Nguyen, Peter Woodhead, Haley Colton, Robert Ohlson, Rob Corrigan
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Patent number: 11499644Abstract: Embodiments of the invention provide a knife gate valve for flow along a flow path. The knife gate valve can include a body structure that includes a gate passage, a gate disposed to move within the gate passage between open and closed positions to selectively open or close a fluid aperture, and a gate seat configured to engage a free end and lateral edges of the gate. A transverse element can be formed from resilient material and can extend laterally across the gate passage to form a seal with a first side of the gate and with the gate seat.Type: GrantFiled: August 25, 2020Date of Patent: November 15, 2022Assignee: Emerson Automation Solutions Final Control US LPInventors: Kenneth Nguyen, Peter Woodhead, Viet Nguyen
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Publication number: 20220268363Abstract: A clamp assembly to secure a yoke to a valve body of a knife gate valve is provided. The clamp assembly can include a bolt that is configured to extend through a first bushing, a first spring member, a first side wall of the yoke, the valve body, a second side wall of the yoke, a second spring member, and a second bushing. The clamp assembly can be configured to pin the yoke to the valve body, apply a pressure-containing preload to the valve body via the first and second bushings, and compress the first spring member between the first bushing and the first side wall of the yoke and the second spring member between the second bushing and the second side wall of the yoke.Type: ApplicationFiled: April 11, 2022Publication date: August 25, 2022Inventors: Kenneth Nguyen, Peter Woodhead, Haley Colton, Robert Ohlson, Rob Corrigan
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Publication number: 20220183533Abstract: Disclosed herein is a chemical dosing system for an appliance, such as a laundry washing machine or a dishwashing machine, having a water inlet, the system comprising a meter for determining the volume of water supplied to the appliance, a pump for dispensing a quantity of a chemical to the appliance and a control unit arranged to receive a signal from the meter and to cause to be dispensed to the appliance a volume of chemical that is proportional to the quantity of water supplied to the appliance. The disclosed system may enable a correct quantity of chemical to be automatically dispensed to many types of appliance, without the need to know anything about the appliance, or to derive electrical signal from the appliance.Type: ApplicationFiled: March 8, 2022Publication date: June 16, 2022Inventors: Peter Woodhead, Terry Holland, Ian Morris
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Patent number: 11300213Abstract: A clamp assembly to secure a yoke to a valve body of a knife gate valve is provided. The clamp assembly can include a bolt that is configured to extend through a first bushing, a first spring member, a first side wall of the yoke, the valve body, a second side wall of the yoke, a second spring member, and a second bushing. The clamp assembly can be configured to pin the yoke to the valve body, apply a pressure-containing preload to the valve body via the first and second bushings, and compress the first spring member between the first bushing and the first side wall of the yoke and the second spring member between the second bushing and the second side wall of the yoke.Type: GrantFiled: February 19, 2021Date of Patent: April 12, 2022Assignee: Emerson Automation Solutions Final Control US LPInventors: Kenneth Nguyen, Peter Woodhead, Haley Colton, Robert Ohlson, Rob Corrigan
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Patent number: 11291347Abstract: Disclosed herein is a chemical dosing system for an appliance, such as a laundry washing machine or a dishwashing machine, having a water inlet, the system comprising a meter determining the volume of water supplied to the appliance, a pump for dispensing a quantity of a chemical to the appliance and a control unit arranged to receive a signal from the meter and to cause to be dispensed to the appliance a volume of chemical that is proportional to the quantity of water supplied to the appliance. The disclosed system may enable a correct quantity of chemical to be automatically dispensed to many types of appliance, without the need to know anything about the appliance, or to derive an electrical signal from the appliance.Type: GrantFiled: October 23, 2018Date of Patent: April 5, 2022Assignee: SELDEN RESEARCH LIMITEDInventors: Peter Woodhead, Terry Holland, Ian Morris
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Publication number: 20220065354Abstract: Embodiments of the invention provide a knife gate valve for flow along a flow path. The knife gate valve can include a body structure that includes a gate passage, a gate disposed to move within the gate passage between open and closed positions to selectively open or close a fluid aperture, and a gate seat configured to engage a free end and lateral edges of the gate. A transverse element can be formed from resilient material and can extend laterally across the gate passage to form a seal with a first side of the gate and with the gate seat.Type: ApplicationFiled: August 25, 2020Publication date: March 3, 2022Inventors: Kenneth Nguyen, Peter Woodhead, Viet Nguyen
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Patent number: 10969021Abstract: A gate valve can include a gate, a gasket seal, and a first body half that defines a first process fluid aperture. One or more replaceable rings can engage the first body half to secure or support the gasket, the gate, or another replaceable ring.Type: GrantFiled: April 29, 2019Date of Patent: April 6, 2021Assignee: Emerson Vulcan Holding LLCInventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Publication number: 20200255998Abstract: Disclosed herein is a chemical dosing system for an appliance, such as a laundry washing machine or a dishwashing machine, having a water inlet, the system comprising a meter determining the volume of water supplied to the appliance, a pump for dispensing a quantity of a chemical to the appliance and a control unit arranged to receive a signal from the meter and to cause to be dispensed to the appliance a volume of chemical that is proportional to the quantity of water supplied to the appliance. The disclosed system may enable a correct quantity of chemical to be automatically dispensed to many types of appliance, without the need to know anything about the appliance, or to derive an electrical signal from the appliance.Type: ApplicationFiled: October 23, 2018Publication date: August 13, 2020Inventors: Peter Woodhead, Terry Holland, Ian Morris
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Publication number: 20190249780Abstract: A gate valve can include a gate, a gasket seal, and a first body half that defines a first process fluid aperture. One or more replaceable rings can engage the first body half to secure or support the gasket, the gate, or another replaceable ring.Type: ApplicationFiled: April 29, 2019Publication date: August 15, 2019Inventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Patent number: 10274089Abstract: Embodiments provide a gate valve including a first body half that defines a first process fluid aperture, a first chest portion, and a first chest gate support recess formed in the first chest portion. A second body half defines a second process fluid aperture that is aligned with the first process fluid aperture, a second chest portion, and a second chest gate support recess that is formed in the second chest portion. A gate is movable relative to the first body half and the second body half. A first chest gate support is received within the first chest gate support recess, and a second chest gate support is received within the second chest gate support recess.Type: GrantFiled: April 19, 2016Date of Patent: April 30, 2019Assignee: Emerson Vulcan Holding LLCInventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Patent number: 10167961Abstract: Embodiments provide a gate valve including a first body half that defines a first process fluid aperture, a second body half that defines a second process fluid aperture aligned with the first process fluid aperture, a gate that is movable relative to the first body half and the second body, and a first port gate support that is arranged on the first body half and extends into the first process fluid aperture. The first port gate support defines a curved surface that is configured to be in contact with a process fluid.Type: GrantFiled: April 19, 2016Date of Patent: January 1, 2019Assignee: Emerson Vulcan Holding LLCInventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Patent number: 10161529Abstract: Embodiments provide a gate valve including a first body half that defines a first process fluid aperture, a first chest portion, and a first gate support recess that is formed in the first chest portion. A second body half defines a second process fluid aperture that is aligned with the first process fluid aperture, a second chest portion, and a second gate support recess that is formed in the second chest portion. A gate is movable relative to the first body half and the second body half, and a gasket seal includes a flange portion, a body portion, and at least one cutout. The flange portion and the body portion are sized to be compressed between the first body half and the second body half, and the at least one cutout provides for volume transformation of the gasket seal under compression.Type: GrantFiled: April 19, 2016Date of Patent: December 25, 2018Assignee: Emerson Vulcan Holding LLCInventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Publication number: 20170299068Abstract: Embodiments provide a gate valve including a first body half that defines a first process fluid aperture, a second body half that defines a second process fluid aperture aligned with the first process fluid aperture, a gate that is movable relative to the first body half and the second body, and a first port gate support that is arranged on the first body half and extends into the first process fluid aperture. The first port gate support defines a curved surface that is configured to be in contact with a process fluid.Type: ApplicationFiled: April 19, 2016Publication date: October 19, 2017Inventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Publication number: 20170299067Abstract: Embodiments provide a gate valve including a first body half that defines a first process fluid aperture, a first chest portion, and a first gate support recess that is formed in the first chest portion. A second body half defines a second process fluid aperture that is aligned with the first process fluid aperture, a second chest portion, and a second gate support recess that is formed in the second chest portion. A gate is movable relative to the first body half and the second body half, and a gasket seal includes a flange portion, a body portion, and at least one cutout. The flange portion and the body portion are sized to be compressed between the first body half and the second body half, and the at least one cutout provides for volume transformation of the gasket seal under compression.Type: ApplicationFiled: April 19, 2016Publication date: October 19, 2017Inventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Publication number: 20170299069Abstract: Embodiments provide a gate valve including a first body half that defines a first process fluid aperture, a first chest portion, and a first chest gate support recess formed in the first chest portion. A second body half defines a second process fluid aperture that is aligned with the first process fluid aperture, a second chest portion, and a second chest gate support recess that is formed in the second chest portion. A gate is movable relative to the first body half and the second body half. A first chest gate support is received within the first chest gate support recess, and a second chest gate support is received within the second chest gate support recess.Type: ApplicationFiled: April 19, 2016Publication date: October 19, 2017Inventors: Viet Nguyen, Peter Woodhead, Kenneth Nguyen, Christopher Don Nyhammer
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Patent number: 4340865Abstract: An electric amplifier adapted to respond to an input signal of either polarity comprising a first differential amplifier OP1 which is arranged to drive through a load L a current whose value varies with the input but is independent of the load value and a second differential amplifier OP2 arranged to maintain the ratio of the amplifier output potentials relative to a datum potential at a predetermined value so that by appropriate choice of the datum potential and the predetermined ratio value the available output potential swing with a given supply voltage can be maximized.Type: GrantFiled: February 4, 1980Date of Patent: July 20, 1982Assignee: The General Electric Company LimitedInventor: Peter Woodhead
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Patent number: D876298Type: GrantFiled: January 26, 2018Date of Patent: February 25, 2020Assignee: Emerson Vulcan Holding LLCInventors: Peter Woodhead, Marko Pregelj, Nilesh Patil
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Patent number: D900972Type: GrantFiled: January 26, 2018Date of Patent: November 3, 2020Assignee: Emerson Vulcan Holding LLCInventors: Peter Woodhead, Marko Pregelj, Nilesh Patil