Parker-hannifin Corporation

Alstom Technology Limited

The Advanced Products Company

Dominick Greg More

Kenneth W Cornett

Jeremy Payne

Amitava Datta

Paul A Dudzinski

Jonas Hurter

Ian William Boston

Peter Graham Amos

Gordon Rowe

James E Beach

Robert Wharton

Hans-Martin Hocke

Leonard D Stern

Jeremy M Payne

A seal assembly () comprising a sealing body (), a shoe (), a first collar (), and a second collar (). The shoe () is positioned within a space defined by radially inner surfaces of the sealing body (), the first collar () is positioned on a first axial side of the sealing body (), and the second collar () is positioned on a second axial side of the sealing body (). These components () collectively form inter-component sealing surfaces, pocket sealing surfaces, gate sealing surfaces and/or part sealing surfaces which prevent the infiltration of outside fluid into, and the escape of operative fluid from, a fluid coupling.

Seal assembly

A composition and process for forming an electrodeposited coating comprising a co-deposit of a metal and MCrAlY particles. The composition includes a metal and a MCrAlY particles, and the electrodeposited coating comprises a metal matrix and MCrAlY particles dispersed in the matrix. In one aspect, a coating is provided that exhibits excellent oxidation resistance and tribological characteristics at high temperatures, including up to at least about 1350&#xb0; F. A high temperature coating may comprise a nickel/cobalt alloy matrix comprising MCrAlY particles and chromium carbide particles dispersed in the nickel/cobalt matrix.

Protective coating for metallic seals

An engine exhaust system comprises duct pieces and a thermally expandable sealing joint for interconnecting their adjoining ends. The sealing joint comprises a tubular body including a first axial end portion, a second axial end portion, and a bridge portion extending therebetween. The first end portion is at least partially positioned within a female recess of the first duct piece and the second end portion is at least partially positioned with a female recess of the second duct piece. The bridge portion can extend across a gap and/or it can be positioned partially within female recesses. Upon thermal activation, the sealing joint radially expands permanently to engage the inner radial surfaces of the duct pieces.

Sealing joint for connecting adjoining duct pieces in an engine exhaust system

An engine exhaust system comprises duct pieces () and a sealing joint () for interconnecting their adjoining ends. The sealing joint () comprises a one-piece tubular body () including a first axial end portion (), a second axial end portion (), and a bridge portion () extending therebetween. The first end portion () is at least partially positioned within a female recess () of the first duct piece () and the second end portion () is at least partially positioned within a female recess () of the second duct piece (). Depending upon the thermal expansion-contraction conditions in the exhaust system, the bridge portion () can extend across a gap () and/or it can be positioned partially within female recesses () and ().

A process chambercomprising a container (), a lid (), and a sealed interface () therebetween. The container's interface surface () and/or the lid's interface surface () includes at least one groove () in which a seal () is situated. The seal () comprises an elastomeric element () and a metallic element (). The elastomeric element () and the metallic element () can be arranged and adapted to seal the chamber's interface () sequentially during its conversion to a sealed condition. And/or the elastomeric element () and the metallic element () can be arranged and adapted to seal the chamber's interface in series once the lid () is in its sealed condition.

Semiconductor process chamber

A spring seal for sealing in high temperature applications includes a jacket and a spring member disposed within the jacket. The spring member is constructed to control a sealing load or spring rate of the spring seal relative to opposing flanges while the jacket is constructed to provide a sealing surface relative to the opposing flanges. The spring member is manufactured from a cast blade alloy, thereby allowing the spring member to maintain its spring back characteristics at relatively high temperatures of about 1300&#xb0; F. and greater. Accordingly, the spring member minimizes the formation of a leak path between the spring seal and the opposing flanges. In one embodiment, the spring member is manufactured with a substantially U-shaped cross-section. With such a configuration, the spring seal provides substantially balanced, opposing forces on the jacket to minimize the formation of gaps between the spring seal and the flanges.

High temperature spring seals

The present invention relates to a sealing body for sealing an outer component with respect to an inner component, in particular for a combustion chamber of a gas turbine. The outer component has a passage opening, through which the inner component projects out of the outer component. In the installed state, the sealing body is arranged in the region of the passage opening, surrounds the inner component in a circumferentially continuous manner, bears in a circumferentially continuous manner, by means of an inner sealing zone, against an outer sealing surface of the inner component and bears in a circumferentially continuous manner, by means of an outer sealing zone, against an inner sealing surface of the outer component. The sealing body is produced by deformation from at least one metal sheet that is in strip form and is circumferentially continuous. The inner sealing zone and the outer sealing zone are formed at a profiled section of the sealing body along the entire circumference.

Profiled sealing body with spring section

Seal ( ) is formed in two halves ( A, B) mated along a transverse centerplane ( ). Each half faces outward from an associated side of centerplane ( ) and includes centrally apertured ( ) metal body ( A, B). Each body has an outwardly projecting hub ( A, B) having an outward-facing engagement surface ( A, B). A web ( A, B) extends radially outward from the hub ( A, B) to a perimeter and has interior and exterior surfaces. Bodies ( A, B) are secured to each other by an annular weld ( ) to form a seal body. A longitudinal separation between the engagement surfaces ( A, B) is compressible via flexing of webs ( A, B) from relaxed separation to a range of compressed separations. In the compressed separation, the surfaces are sealingly engaged to respective ones of the first ( A, B) and second ( A, B) conduits. On each side of seal ( ) there may be two polymeric sealing rings A, B) and an annular retainer ( A, B). Caps ( A, B) having an inboard portion covering a portion of the outboard sealing ring. At least one annular collar ( A, B) depends from cap ( A, B).

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Middletown, CT, United States of America

Dominick Greg More