Patents by Inventor Peter J. Dowd

Peter J. Dowd 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).

  • Patent number: 12268981
    Abstract: Disclosed is a valve assembly, having: a valve duct having an upstream end, a downstream end and a duct wall extending from the upstream end to the downstream end; a first conduit extending from a first end at the valve duct to a second end spaced apart from the first end, the first conduit terminating at a valve assembly component; and a washing filter that includes filer media, wherein the filter media extends into the valve duct to remove particles and provide a clean flow to the first conduit.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: April 8, 2025
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: August M. Coretto, David J. Zawilinski, Scott W. Simpson, Peter J. Dowd, Robert DeFelice, John M. Dehais
  • Patent number: 11994177
    Abstract: A manual positioning assembly for connection to a shaft of a valve configured to manually manipulate a disc of the valve between an open and closed position. The manual valve positioning assembly includes a housing having a first and a second end. The first end includes a flange configured for fastening the housing to the valve. The second end includes a conical feature. An alignment bushing within the second end of the housing and a double universal joint. The double universal joint includes a first end and a second end. The first end of the double universal joint is configured to be mechanically fastened to the shaft of the valve. The second end is positioned within the alignment bushing and includes a socket configured to receive a tool that manually turns the double universal joint, the shaft, and the disc to position the disc in the open or closed position.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: May 28, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Peter J. Dowd, John M. Dehais, David J. Zawilinski
  • Patent number: 11982358
    Abstract: An inline valve includes a sliding piston having a radially outer stop portion with a forward end. A radially inner sliding portion is connected to the radially outer stop portion by an arm. A housing includes an outer housing body surrounding the piston. The housing has a stop surface selectively in contact with the forward end of the radially outer stop portion of the piston to block flow for a housing inlet to a housing outlet. The radially inner sliding portion slides on a support tube. At least a portion of the radially inner sliding portion is formed of a first material having better wear resistance than a second material forming the outer stop portion of the piston. The second material has a greater resistance to high temperature and pressure than the first material. A vent valve for a compressor is also disclosed.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: May 14, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: August M. Coretto, Scott W. Simpson, Donald E. Army, Peter J. Dowd, David J. Zawilinski
  • Publication number: 20230264132
    Abstract: Disclosed is a valve assembly, having: a valve duct having an upstream end, a downstream end and a duct wall extending from the upstream end to the downstream end; a first conduit extending from a first end at the valve duct to a second end spaced apart from the first end, the first conduit terminating at a valve assembly component; and a washing filter that includes filer media, wherein the filter media extends into the valve duct to remove particles and provide a clean flow to the first conduit.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 24, 2023
    Inventors: August M. Coretto, David J. Zawilinski, Scott W. Simpson, Peter J. Dowd, Robert DeFelice, John M. Dehais
  • Publication number: 20230126388
    Abstract: An inline valve includes a sliding piston having a radially outer stop portion with a forward end. A radially inner sliding portion is connected to the radially outer stop portion by an arm. A housing includes an outer housing body surrounding the piston. The housing has a stop surface selectively in contact with the forward end of the radially outer stop portion of the piston to block flow for a housing inlet to a housing outlet. The radially inner sliding portion slides on a support tube. At least a portion of the radially inner sliding portion is formed of a first material having better wear resistance than a second material forming the outer stop portion of the piston. The second material has a greater resistance to high temperature and pressure than the first material. A vent valve for a compressor is also disclosed.
    Type: Application
    Filed: October 22, 2021
    Publication date: April 27, 2023
    Inventors: August M. Coretto, Scott W. Simpson, Donald E. Army, Peter J. Dowd, David J. Zawilinski
  • Publication number: 20230035816
    Abstract: A manual positioning assembly for connection to a shaft of a valve configured to manually manipulate a disc of the valve between an open and closed position. The manual valve positioning assembly includes a housing having a first and a second end. The first end includes a flange configured for fastening the housing to the valve. The second end includes a conical feature. An alignment bushing within the second end of the housing and a double universal joint. The double universal joint includes a first end and a second end. The first end of the double universal joint is configured to be mechanically fastened to the shaft of the valve. The second end is positioned within the alignment bushing and includes a socket configured to receive a tool that manually turns the double universal joint, the shaft, and the disc to position the disc in the open or closed position.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Inventors: Peter J. Dowd, John M. Dehais, David J. Zawilinski
  • Patent number: 11028333
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 8, 2021
    Inventors: Peter J. Dowding, Elin J. Eis
  • Patent number: 10830372
    Abstract: A pneumatic controller includes a manifold, a selector, and a biasing member. The manifold has a low pressure port, a high pressure port, an actuator port, and a vent. The selector is movable within the manifold between a first position and a second position, the low pressure port in fluid communication with the actuator port in the first position, the high pressure port in fluid communication with the actuator port in the second position. The biasing member is supported within the manifold and urges the selector towards the first position, wherein the low pressure port is in fluid communication with the vent in both the first position and the second position to cool the biasing member with low pressure fluid received at the low pressure port. Inline valves, gas turbine engines, and methods of controlling fluid flow through inline valves are also described.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 10, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Robert DeFelice, Peter J. Dowd
  • Patent number: 10823308
    Abstract: A controller for an inline valve includes a manifold seating a set screw and has a reference fluid port, a control fluid port, and an actuator fluid port. A selector is movable within the manifold between a first position and a second position, the reference fluid port in fluid communication with the actuator fluid port in the first position, the control fluid port in fluid communication with the actuator fluid port in the second position. A biasing member is arranged between the selector and the set screw and urges the selector towards the first position. The set screw extends through an exterior of the manifold for adjustment of differential in pressures at the reference fluid port and the control fluid port responsive to which the selector moves between the first position and the second position. Inline valves and methods of controlling fluid flow through inline valves are also described.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 3, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Robert DeFelice, Peter J. Dowd
  • Patent number: 10823087
    Abstract: An inline valve includes a valve body, a valve member, and a control manifold. The valve body has an exterior, an inlet, and an outlet. The valve member is supported within the valve body and is movable between a first position and a second position. The inlet in fluid communication with the outlet while the valve member is in the first position and the inlet fluidly separated from the outlet while the valve member is in the second position. The control manifold is supported by the valve body, has a reference fluid port and a control fluid port, and is in pneumatic communication with the valve member through the valve body exterior to passive movement of the valve member according to pressure at the valve body inlet. Gas turbine engines and methods of controlling valves are described.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 3, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Robert DeFelice, Peter J. Dowd
  • Patent number: 10824172
    Abstract: A pneumatic controller for an inline valve includes a manifold with a set screw seated within it, a selector, and a biasing member. The manifold has a low pressure port, a high pressure port, and an actuator port. The selector is movable within the manifold between a first position and a second position, the low pressure port in fluid communication with the actuator port in the first position, the high pressure port in fluid communication with the actuator port in the second position. The biasing member urges the selector towards the first position with a biasing force and is spaced apart from the selector to limit eccentric force exerted on the selector. Inline valves and methods of controlling fluid flow through inline valves are also described.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 3, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Robert DeFelice, Peter J. Dowd
  • Patent number: 10670483
    Abstract: An assembly includes a housing along a fluid line through which gas can flow with the housing having an annular shape, a housing groove extending circumferentially around a radial interior, and a sense hole adjacent the housing groove in a bottom side of the housing; and a piezometer ring disposed within the housing groove and coaxial with the housing. The piezometer ring includes a ring groove extending circumferentially around a radially outer side adjacent the housing and a plurality of ring holes extending radially through the piezometer ring with the plurality of ring holes including two bottom holes closest to the bottom side of the housing that are spaced farther apart from one another than from adjacent holes of the plurality of ring holes.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: June 2, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: John M. Dehais, Peter J. Dowd
  • Publication number: 20200148969
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Applicant: Infineum International Limited
    Inventors: Peter J. Dowding, Elin J. Eis
  • Patent number: 10577555
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: March 3, 2020
    Inventors: Peter J. Dowding, Elin J. Eis
  • Publication number: 20190285494
    Abstract: An assembly includes a housing along a fluid line through which gas can flow with the housing having an annular shape, a housing groove extending circumferentially around a radial interior, and a sense hole adjacent the housing groove in a bottom side of the housing; and a piezometer ring disposed within the housing groove and coaxial with the housing. The piezometer ring includes a ring groove extending circumferentially around a radially outer side adjacent the housing and a plurality of ring holes extending radially through the piezometer ring with the plurality of ring holes including two bottom holes closest to the bottom side of the housing that are spaced farther apart from one another than from adjacent holes of the plurality of ring holes.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 19, 2019
    Inventors: John M. Dehais, Peter J. Dowd
  • Patent number: 9989155
    Abstract: A connector link for use in an actuation system for a butterfly valve has a central web extending between two generally cylindrical ends. There are bores formed in each of two generally cylindrical ends and bushings extend axially upwardly from a nominal face at each of the ends. One of the ends has a bore formed at a radius defined as a first distance. A distance between center points of the bores in the first and second ends is defined as a second distance. The ratio of the second distance to the first distance is greater than or equal to 19.2772 and less than or equal to 19.4125. A valve and method are also disclosed.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: June 5, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Scott W. Simpson, Josh Kamp, Peter J. Dowd
  • Publication number: 20180134980
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Applicant: Infineum International Limited
    Inventors: Peter J. Dowding, Elin J. Eis
  • Publication number: 20170343113
    Abstract: A thrust plate for a butterfly valve includes a thrust plate body that defines a recess that extends between a bottom thrust surface, side walls, and an open top. There is a nickel-based or cobalt-based wear-resistant coating located on the bottom thrust surface. The wear-resistant coating is harder than the thrust plate body.
    Type: Application
    Filed: August 16, 2017
    Publication date: November 30, 2017
    Inventors: Peter J. Dowd, John M. Dehais, Blair A. Smith, Timothy R. Boysen, Keith J. Brooky, Aaron T. Nardi, Kevin M. Rankin
  • Patent number: 9816619
    Abstract: A thrust plate for a butterfly valve includes a thrust plate body that defines a recess. The recess extends between a bottom thrust surface, side walls and an open top. A wear-resistant coating is located on the bottom thrust surface.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: November 14, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Peter J. Dowd, John M. Dehais, Blair A. Smith, Timothy R. Boysen, Keith J. Brooky, Aaron T. Nardi, Kevin M. Rankin
  • Patent number: 9709178
    Abstract: A flow diverting valve includes a body having a concave spherical surface, a flange traversing a perimeter of the body, and a hinge connected to the flange and configured to rotate about a pivot axis.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 18, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Peter J. Dowd, Donald E. Army, Jr.