Belt type expansion joints

Details Belt type expansion joints Belt type expansion joints

1980-07-07

1981-09-15

Hess, Bruce H.

Pipe joints or couplings

Flexible joint, rigid members

Bellows

92 47, 138120, 198844, 198847, 428 36, 428285, 428286, 428287, F16L 2710, F16L 5102

Patent

active

042893380

ABSTRACT:
An elastomeric expansion belt material includes an under layer having a heat resistant or insulating fabric, or matting, such as an asbestos fabric, carried by a polymerizable elastomer vulcanized to a heat shield including one or more layers of a metal foil, such as aluminum, and a polyester film, such as polyethylene terephthalate having the metal foil on the inner, or heat contacting surface. The heat shield substantially doubles the temperature resistance of the asbestos carried elastomer and substantially increases its resistance to chemically corrosive gases and particulate material.

REFERENCES:
patent: 3315704 (1967-04-01), Shire
patent: 3463516 (1969-08-01), Munton
patent: 3647247 (1972-03-01), Pintard et al.
patent: 4101150 (1978-07-01), Thawley et al.

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