Bellows

Details Bellows Bellows

1996-05-03

1998-04-28

Nguyen, Hoang

Expansible chamber devices

Bellows type expansible chamber

With separate ring-like reinforcing element abutting pleat

92 45, 92 47, F01B 1900, F16J 300

Patent

active

057431663

ABSTRACT:
The invention relates to a bellows, in the bellows body of which are provided supporting frames which are welded to the outer pleats of the bellows body. The connection between the outer pleats of the bellows body and the supporting frames is formed by a high-frequency welded joint. The bellows according to the invention can be produced in a particularly economical manner and, if required, the bellows body can also be coated with PVC if the supporting frames--as usual--are produced from rigid PVC.

REFERENCES:
patent: 2145937 (1939-02-01), Lockwood
patent: 2347185 (1944-04-01), Fentress
patent: 3831499 (1974-08-01), Andrews et al.
patent: 4325769 (1982-04-01), Moyse et al.
patent: 4457213 (1984-07-01), Morgan
patent: 4579045 (1986-04-01), Tominaga
patent: 4638722 (1987-01-01), Schneider et al.
patent: 5261317 (1993-11-01), Fraser, Jr.

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