Patents by Inventor Douglas C. Schenk
Douglas C. Schenk 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: 8623145Abstract: A seal for sealing an interface between a container and a lid of a process chamber. The seal comprises a first seal element and a second seal element that are arranged to seal the interface in series, with the second seal element being situated to encounter processing activity upstream of the fist seal element. The first seal element has a deflectable portion and a protrusion extending radially from the deflectable portion. The second seal element has a radially extending recess in which the protrusion of the first seal element is received. The protrusion and recess interlock to restrict separation and/or rotation of the first and second seal elements. Inclined surfaces of the first seal element interact with the second seal element to apply axial sealing forces to sealing surfaces of the second seal member.Type: GrantFiled: March 25, 2010Date of Patent: January 7, 2014Assignee: Parker-Hannifin CorporationInventors: Don Bowman, Stephen Coppola, Kenneth W. Cornett, Dan Funke, Julian Kamibayashiyama, Jeff Navarro, Jeremy M. Payne, Donald J. Peterson, Douglas C. Schenk
-
Publication number: 20110232843Abstract: A seal for sealing an interface between a container and a lid of a process chamber. The seal comprises a first seal element and a second seal element that are arranged to seal the interface in series, with the second seal element being situated to encounter processing activity upstream of the fist seal element. The first seal element has a deflectable portion and a protrusion extending radially from the deflectable portion. The second seal element has a radially extending recess in which the protrusion of the first seal element is received. The protrusion and recess interlock to restrict separation and/or rotation of the first and second seal elements. Inclined surfaces of the first seal element interact with the second seal element to apply axial sealing forces to sealing surfaces of the second seal member.Type: ApplicationFiled: March 25, 2010Publication date: September 29, 2011Inventors: Don Bowman, Stephen Coppola, Kenneth W. Cornett, Dan Funke, Julian Kamibayashiyama, Jeff Navarro, Jeremy M. Payne, Donald J. Peterson, Douglas C. Schenk
-
Publication number: 20110101627Abstract: A gasket (10) has a retainer (30) comprising a plurality of balls encapsulated within a matrix of polymeric material (e.g., rubber). The balls are made of hard material (e.g., metal, hard plastic, ceramic, etc.) and prevent over-compression during gasket installation. The polymeric matrix provides the gasket (10) with a two-dimensional grid of joints or elbows, allowing it to conform to an almost infinite number of different flange surfaces. The matrix can be made of the same material as, and molded at the same time as, the gasket's sealing elements (40, 50, 60).Type: ApplicationFiled: May 28, 2009Publication date: May 5, 2011Inventors: Daniel D. Labrenz, Daniel J. Funke, Donald J. Peterson, Douglas C. Schenk
-
Patent number: 7401404Abstract: Sealing gasket construction for providing a fluid seal intermediate a pair of opposed, mating parts or structures. The gasket includes a metal retainer and a resilient seal element received in a groove formed into the retainer. Such groove is adapted to be fabricated by coining or a like sheet metal stamping or forming process.Type: GrantFiled: July 27, 2004Date of Patent: July 22, 2008Assignee: Parker-Hannifin CorporationInventors: William P. Yetter, Douglas C. Schenk, Darrell W. Rall
-
Publication number: 20040172824Abstract: A method of making a gasket of a variety which includes a generally annular retainer member having an inner and outer diametric extent which define a perimeter of a closed geometric shape, and at least one generally annular seal member formed of an elastomeric material and supported on the retainer member to be compressible intermediate a pair of interface surfaces for providing a fluid-tight seal therebetween. At least a first and a second retainer segment each is provided as extending intermediate a first end and a second end, and as having an inner periphery and an outer periphery. To form the retainer member, the first end of each of the retainer segments is connected to the second end of an adjacent segment such that the inner periphery of each segment defines a portion of the inner diametric extent of the retainer member, with the outer periphery of each segment defining a portion of the outer diametric extent of the retainer member.Type: ApplicationFiled: March 12, 2004Publication date: September 9, 2004Inventor: Douglas C. Schenk
-
Patent number: 6695357Abstract: A connection for threaded pipes and other tubular sections including a gasket for interposition between a first and an opposing second interface surface of the connection. The gasket includes a retainer and a generally annular seal element received in a groove formed into at least one side of the retainer. Such retainer side further is formed as having one or more channels extending extend radially through the groove and the inner or outer perimeter of the retainer. Each such channel defines a vent for relieving hydrostatic fluid pressure as the gasket is compressed between the interface surfaces.Type: GrantFiled: September 4, 2002Date of Patent: February 24, 2004Assignee: Parker-Hannifin CorporationInventors: Douglas C. Schenk, Eugene J. Mannella
-
Patent number: 6669205Abstract: A gasket for interposition between a first and an opposing second interface surface of a sealing assembly. The gasket includes a retainer and a generally annular seal element received in a groove formed into at least one side of the retainer. Such retainer side further is formed as having one or more channels extending extend radially through the groove and the inner or outer perimeter of the retainer. Each such channel defines a vent for relieving hydrostatic fluid pressure as the gasket is compressed between the interface surfaces.Type: GrantFiled: March 5, 2002Date of Patent: December 30, 2003Assignee: Parker-Hannifin CorporationInventor: Douglas C. Schenk
-
Publication number: 20030201611Abstract: A method of making a gasket of a variety which includes a generally annular retainer member having an inner and outer diametric extent which define a perimeter of a closed geometric shape, and at least one generally annular seal member formed of an elastomeric material and supported on the retainer member to be compressible intermediate a pair of interface surfaces for providing a fluid-tight seal therebetween. At least a first and a second retainer segment each is provided as extending intermediate a first end and a second end, and as having an inner periphery and an outer periphery. To form the retainer member, the first end of each of the retainer segments is connected to the second end of an adjacent segment such that the inner periphery of each segment defines a portion of the inner diametric extent of the retainer member, with the outer periphery of each segment defining a portion of the outer diametric extent of the retainer member.Type: ApplicationFiled: March 21, 2003Publication date: October 30, 2003Inventor: Douglas C. Schenk
-
Patent number: 6553664Abstract: A method of making a gasket of a variety which includes a generally annular retainer member having an inner and outer diametric extent which define a perimeter of a closed geometric shape, and at least one generally annular seal member formed of an elastomeric material and supported on the retainer member to be compressible intermediate a pair of interface surfaces for providing a fluid-tight seal therebetween. At least a first and a second retainer segment each is provided as extending intermediate a first end and a second end, and as having an inner periphery and an outer periphery. To form the retainer member, the first end of each of the retainer segments is connected to the second end of an adjacent segment such that the inner periphery of each segment defines a portion of the inner diametric extent of the retainer member, with the outer periphery of each segment defining a portion of the outer diametric extent of the retainer member.Type: GrantFiled: December 17, 1999Date of Patent: April 29, 2003Assignee: Parker-Hannifin CorporationInventor: Douglas C. Schenk
-
Publication number: 20030025328Abstract: A connection for threaded pipes and other tubular sections including a gasket for interposition between a first and an opposing second interface surface of the connection. The gasket includes a retainer and a generally annular seal element received in a groove formed into at least one side of the retainer. Such retainer side further is formed as having one or more channels extending extend radially through the groove and the inner or outer perimeter of the retainer. Each such channel defines a vent for relieving hydrostatic fluid pressure as the gasket is compressed between the interface surfaces.Type: ApplicationFiled: September 4, 2002Publication date: February 6, 2003Inventors: Douglas C. Schenk, Eugene J. Mannella
-
Publication number: 20020140182Abstract: A gasket for interposition between a first and an opposing second interface surface of a sealing assembly. The gasket includes a retainer and a generally annular seal element received in a groove formed into at least one side of the retainer. Such retainer side further is formed as having one or more channels extending extend radially through the groove and the inner or outer perimeter of the retainer. Each such channel defines a vent for relieving hydrostatic fluid pressure as the gasket is compressed between the interface surfaces.Type: ApplicationFiled: March 5, 2002Publication date: October 3, 2002Inventor: Douglas C. Schenk