Timothy J Sumrall

US Patent:

7059586, Jun 13, 2006

Filed:

Apr 1, 2004

Appl. No.:

10/816520

Inventors:

Christopher Allen Vanderberg - Amory MS, US
Shaine Gordon Reeves - Southhaven MS, US
John Paul Comstock - Amory MS, US
Timothy Carl Sumrall - Greenwood Springs MS, US

Assignee:

ITT Manufacturing Enterprises, Inc. - Wilmington DE

International Classification:

F16K 3/00

US Classification:

251328, 251214, 277646

Abstract:

A gate seal for a knife gate valve comprising a sealing surface lining the gate channel and an integral gasket for compression between valve body halves, a chest seal for a knife gate valve comprising a body having an expandable sealing surface and one or more injection chambers adapted to receive an injectable packing, each chamber having a cross-sectional area that is completely surrounded by the body member, and/or a knife gate valve comprising one or both such seals. The chest seal body may comprise a knife gate slot that is peripherally surrounded by the body. The gate seal and the chest seal may comprise a single integral elastomeric member or separate components.

US Patent:

20020130289, Sep 19, 2002

Filed:

Mar 15, 2001

Appl. No.:

09/809582

Inventors:

Bruce Knobbe - Greenwood Springs MS, US
Timothy Sumrall - Greenwood Springs MS, US
Shaine Reeves - Amory MS, US

International Classification:

F16K003/16

US Classification:

251/172000

Abstract:

A gate valve seal for a gate valve including a body having an inlet aperture and an outlet aperture, and a gate closure reciprocally disposed within the body between a closed valve position where the gate closure blocks the apertures and an open valve position where the gate closure does not block the apertures. The seal includes a first resilient seat for placement in the inlet aperture of the gate valve body and a second resilient seat for placement in the outlet aperture of the gate valve body. The seats sealingly engage one another and the gate closure when the closure cycles between the valve positions. Each of the seats includes an inner diametrical surface which generates sealing pressure that increases as internal pipeline pressure increases.

US Patent:

51543974, Oct 13, 1992

Filed:

May 20, 1991

Appl. No.:

7/703329

Inventors:

David L. Thomas - Aberdeen MS
Timothy C. Sumrall - Tupelo MS
David L. Flippo - Amory MS
Samuel A. Bryan - Hamilton MS

International Classification:

F16K 302

US Classification:

251328

Abstract:

A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to deflect the seal into the groove a relief cut out which places the seal in a shear mode.