Clamp band for spring brakes

Details Clamp band for spring brakes Clamp band for spring brakes

2007-04-04

2009-11-03

Lazo, Thomas E (Department: 3745)

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

C092S128000, C092S063000

Reexamination Certificate

active

07610846

ABSTRACT:
A clamp band for spring brakes which comprises an annular clamp band pre-formed with a side wall and a rim extended perpendicularly from a first end thereof, wherein during assembling of a spring brake when an edge of a first chamber, a diaphragm and an edge of a second chamber are positioned in sequential order on the rim a second end of the side wall is deformed to bend inwards to encompass the edge of the second chamber to secure the edges of the two chambers and the diaphragm in place. The annular clamp band comprises a first clamp band and a second clamp band having identical semi-annular shape.

REFERENCES:
patent: 3796138 (1974-03-01), Doyle et al.
patent: 5193432 (1993-03-01), Smith
patent: 5775202 (1998-07-01), Plantan et al.
patent: 6988442 (2006-01-01), Fisher
patent: 2007/0035177 (2007-02-01), Thompson et al.

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