Dennis M Dempsey

US Patent:

6626439, Sep 30, 2003

Filed:

Mar 6, 2000

Appl. No.:

09/519653

Inventors:

John S. Forry - Lancaster PA
Brian C. Lehr - Pequea PA
Dennis M. Dempsey - Lancaster PA
Jeff Barrall - Lititz PA
Linda L. Sload - Lancaster PA
Christopher L. Morris - Oxford PA

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

F02F 1100

US Classification:

277592, 277627, 277652

Abstract:

An edge coated gasket includes a base sheet made of compressible gasket material and having opposed faces and an interior edge surrounding and defining an aperture. An edge coating of polymer or other material is disposed on and seals the interior edge of the base sheet and may project beyond the facial planes of the base sheet to define protruding rims extending around the aperture. Face coatings may also be applied to one or more of the faces extending in relatively narrow strips around the aperture of the base sheet. When clamped between flange surfaces, the edge coating engages, conforms to, and seals against the flange surfaces to provide a seal against both interfacial and intersticial migration of fluid past the gasket. At the same time, the inherently good compression failure resistance of the compressible gasket material of the base sheet is preserved. Thus, a gasket with enhanced sealability and compression failure resistance is provided.

US Patent:

6923998, Aug 2, 2005

Filed:

Mar 18, 2003

Appl. No.:

10/392266

Inventors:

John S. Forry - Lancaster PA, US
Brian C. Lehr - Pequea PA, US
Dennis M. Dempsey - Lancaster PA, US
Jeff Barrall - Lititz PA, US
Linda L. Sload - Lancaster PA, US
Christopher L. Morris - Oxford PA, US

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

B05D007/22

US Classification:

427183, 427181, 427195, 427231, 427284

Abstract:

An edge coated gasket includes a base sheet made of compressible gasket material and having opposed faces and an interior edge surrounding and defining an aperture. An edge coating of polymer or other material is disposed on and seals the interior edge of the base sheet and may project beyond the facial planes of the base sheet to define protruding rims extending around the aperture. Face coatings may also be applied to one or more of the faces extending in relatively narrow strips around the aperture of the base sheet. When clamped between flange surfaces, the edge coating engages, conforms to, and seals against the flange surfaces to provide a seal against both interfacial and intersticial migration of fluid past the gasket. At the same time, the inherently good compression failure resistance of the compressible gasket material of the base sheet is preserved. Thus, a gasket with enhanced sealability and compression failure resistance is provided.

US Patent:

7278639, Oct 9, 2007

Filed:

Mar 19, 2003

Appl. No.:

10/393057

Inventors:

John S. Forry - Lancaster PA, US
Brian C. Lehr - Pequea PA, US
Dennis M. Dempsey - Lancaster PA, US
Jeffery L. Barrall - Lititz PA, US
Linda L. Sload - Lancaster PA, US
Christopher L. Morris - Oxford PA, US

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

F16J 15/10

US Classification:

277596, 277627

Abstract:

An edge coated gasket includes a base sheet made of compressible gasket material and having opposed faces and an interior edge surrounding and defining an aperture. An edge coating of polymer or other material is disposed on and seals the interior edge of the base sheet and may project beyond the facial planes of the base sheet to define protruding rims extending around the aperture. Face coatings may also be applied to one or more of the faces extending in relatively narrow strips around the aperture of the base sheet. When clamped between flange surfaces, the edge coating engages, conforms to, and seals against the flange surfaces to provide a seal against both interfacial and intersticial migration of fluid past the gasket. At the same time, the inherently good compression failure resistance of the compressible gasket material of the base sheet is preserved. Thus, a gasket with enhanced sealability and compression failure resistance is provided.

US Patent:

7905498, Mar 15, 2011

Filed:

Mar 28, 2007

Appl. No.:

11/692573

Inventors:

Dennis Dempsey - Willow Street PA, US
Jeffery Barrall - Lititz PA, US
EvAnn Rempala - Landisville PA, US
Jinfeng Zhuang - Lititz PA, US

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

F16J 15/02

US Classification:

277649, 277651, 277654

Abstract:

A gasket for creating a seal between two surfaces. The gasket may include a pervious base sheet and a permeating material applied to or incorporated into the base sheet. The gasket is formed by various methods disclosed herein. The gasket may include a base sheet, a primary sealing material covering the base sheet, and a secondary sealing material covering the primary sealing material.

US Patent:

8579299, Nov 12, 2013

Filed:

Apr 3, 2009

Appl. No.:

12/417746

Inventors:

Jinfeng Zhuang - Lititz PA, US
Jeffery Barrall - Lititz PA, US
EvAnn Rempala - Landisville PA, US
Dennis Dempsey - Willow Street PA, US

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

F16J 15/02

US Classification:

277594, 277637

Abstract:

A gasket has an upper face and a lower face. The gasket comprises an adhesive element that can have a combination of adhesion strength and compression set resistance. The adhesive element can be carried by a carrier sheet or may be directly applied to sealing surfaces in contact with the gasket.

US Patent:

20080280040, Nov 13, 2008

Filed:

Apr 30, 2008

Appl. No.:

12/112434

Inventors:

Jeffery Barrall - Lititz PA, US
Dennis Dempsey - Willow Street PA, US

International Classification:

B05D 5/00
F16J 15/08

US Classification:

427256, 277650

Abstract:

A gasket is provided for creating a seal between two surfaces. The gasket may include a pervious base sheet and a permeating material applied to or incorporated into the base sheet. The gasket is formed by various methods disclosed herein. The gasket may include a base sheet, a primary sealing material covering and/or impregnated the base sheet, and a secondary sealing material covering the primary sealing material. The secondary material may be applied in a predetermined pattern of raised and lowered sections or may be applied as a bead of sealing material. The secondary material may be applied through a variety of techniques including jetting and dispensing using robots such that beads with custom engineered and changing configurations along their lengths are possible. These custom engineered sealing beads provide optimum sealability over the entire area of a joint to be sealed.

US Patent:

62412531, Jun 5, 2001

Filed:

Jun 8, 1998

Appl. No.:

9/093084

Inventors:

Dennis M. Dempsey - Lancaster PA
Christopher L. Morris - Oxford PA

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

F16J 1510

US Classification:

277596

Abstract:

A soft gasket material having two opposed facial surfaces and an edge that is substantially perpendicular to those surfaces has a coating on the edge. The coating has a thickness length B which is a distance extending directly from the edge at its center point to the coat's outer surface. The coating further covers the edge from side to side and extends past at least one corner of the edge in a protruding length A which is an amount that is effective to form a barrier against the passage of fluids onto the face of the gasket. In coatings where the protruding length A is not supported by the gasket face, the ratio of protruding length A: thickness length B must be at least about 0. 8, protruding length A must be a minimum of at least about 4 mils, and thickness length B must be a minimum of at least about 3 mils. In coatings where the protruding length A is supported by the gasket face (a distance C), the ratio of protruding length A: thickness length B can be at least about 0. 6, protruding length A can be a minimum of at least about 3 mils, and thickness length B can be a minimum of at least about 2 mils.

US Patent:

6268020, Jul 31, 2001

Filed:

Jul 6, 1998

Appl. No.:

9/110354

Inventors:

John S. Forry - Lancaster PA
Brian C. Lehr - Pequea PA
Dennis M. Dempsey - Lancaster PA
Christopher L. Morris - Oxford PA
Linda L. Sload - Lancaster PA

Assignee:

Interface Solutions, Inc. - Lancaster PA

International Classification:

B05C 500

US Classification:

427284

Abstract:

A gasket having two opposed faces and an edge disposed therebetween is given a wide coating on the edge. The coating is sufficiently wide so that it goes from corner to corner on the edge and protrudes past the corner on at least one side of the gasket in a direction perpendicular to a facial plane of the gasket. The coating protrudes in an amount effective to give the gasket a sealing ability which is better than the sealing ability of the same gasket if it had a coating merely extending from corner to corner without protruding. A process for coating the gasket edges which are around the aperture comprises placing the gasket sheets together so that a cavity is formed by the apertures, the sides of the cavity are the aperture edges to be coated. The coating material is put into the cavity and contacts the edges to be coated to form the coated edges.