Douglas S Pearmain

US Patent:

49777190, Dec 18, 1990

Filed:

Sep 6, 1989

Appl. No.:

7/403531

Inventors:

Allan R. LaRoche - Roseville CA
Douglas S. Pearmain - Auburn ME
Denis M. Kelleher - Denver CO

International Classification:

E04B 174

US Classification:

52396

Abstract:

An expansion joint for interior or exterior use including a fire barrier comprised of a fire resistant inorganic refractory fiber fabric sheet which supports resilient fire resistant inorganic refractory fibers. The support sheet may be closed to form a sleeve. When used as an exterior expansion joint a weather resistant cover comprising a bellows or a cover plate is employed. When used in an interior application a cover plate may be employed to form a bridge over the expansion joint to provide a continuous flooring or to provide additional fire resistance. The fabric is attached to adjacent structure by mounting flanges in the form of a bifurcated clamp, and one of the fabric-engaging clamp faces may be crimped and pierced to better grip the fabric.

US Patent:

48668982, Sep 19, 1989

Filed:

Jun 20, 1988

Appl. No.:

7/208696

Inventors:

Allan R. LaRoche - Roseville CA
Douglas S. Pearmain - Auburn ME

Assignee:

Manville Corporation - Denver CO

International Classification:

E04B 174

US Classification:

52396

Abstract:

An expansion joint having a weather resistant cover and a fire barrier. The cover is a bellows attached to the upper surface of the adjacent joint structure by mounting flanges, and the barrier is a fire resistant inorganic fabric sheet mounted in the joint. The fabric supports resilient fire resistant inorganic fibrous insulation and is connected to the adjacent joint structure by mounting flanges. The flanges may be in the form of a bifurcated clamp, and one of the fabric-engaging clamp faces may be crimped and pierced to better grip the fabric.

US Patent:

52691101, Dec 14, 1993

Filed:

Apr 15, 1992

Appl. No.:

7/869556

Inventors:

Richard M. Morrison - Brunswick ME
George W. Velenovsky - Auburn ME
Douglas S. Pearmain - Auburn ME
Marcel L. M. Corriveau - Lewiston ME

Assignee:

Schuller International, Inc. - Denver CO

International Classification:

E04B 174

US Classification:

52396

Abstract:

A flexible closure system seals off and insulates openings in external building walls or roofs where structures such as ducts penetrate the walls or roofs. The flexible closure system also isolates the structures from the walls or roofs by absorbing rather than transmitting vibrations. The flexible closure system includes an exterior rubber closure sheet and an interior silicone coated fiber glass fabric closure sheet which are both coextensive with the opening, secured to the structure and wall or roof, and form a cavity which is filled with glass fiber insulation.

US Patent:

48480444, Jul 18, 1989

Filed:

Jul 14, 1988

Appl. No.:

7/219500

Inventors:

Allan R. LaRoche - Roseville CA
Robert A. Butcher - Turner ME
Jean A. Dubuc - Lewiston ME
Douglas S. Pearmain - Auburn ME

Assignee:

Manville Corporation - Denver CO

International Classification:

E04B 168
E04D 338

US Classification:

52 58

Abstract:

An expansion joint cover having a vapor barrier channel depending from the bellows membrane. Resilient insulation substantially fills the channel, making it possible to attach an insulated vapor-impermeable bellows cover to the expansion joint members in a single operation. A separate layer of foam insulation may be bonded to the underside of the bellows independent of the insulation filling the channel.