Pressure cushion seal for laminating machine

Details Pressure cushion seal for laminating machine Pressure cushion seal for laminating machine

1980-02-22

1981-08-25

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG7, 277188R, 277166, 100 93RP, 100154, 156582, F16J 1524, B30B 506

Patent

active

042855250

ABSTRACT:
A slide surface seal for laterally sealing a pressure cushion formed between a pressure plate and a metal belt advancing parallel to the plate in a moving belt laminating machine operating according to the pressure cushion principle, the seal being arranged to be mounted in a groove formed in the pressure plate and to bear against the metal belt to laterally surround the pressure cushion and to establish a fluid seal between the plate and the belt and the seal being composed of a seal mount of rigid material arranged to be inserted in the groove, at least one sealing strip secured to the mount and arranged to bear against the belt for maintaining a gap of minimum width between the seal and the belt, and an elastic sealing member secured to the mount adjacent the side of the sealing strip directed toward the interior of the pressure cushion and arranged to bear against the belt for maintaining losses of pressure medium from the cushion at a minimum.

REFERENCES:
patent: 2135763 (1938-11-01), Nicholson
patent: 2747954 (1956-05-01), Damm et al.
patent: 2797971 (1957-07-01), Greenough
patent: 3722374 (1973-05-01), Densmore
patent: 3840420 (1974-10-01), Sarcia
patent: 3907310 (1975-09-01), Dufour
patent: 4114906 (1978-09-01), Jelinek
patent: 4193342 (1980-03-01), Held
patent: 4221390 (1980-09-01), Bainbridge

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