Expansible chamber devices – With assembly or disassembly facilitating means
Patent
1996-10-07
1997-10-14
Denion, Thomas E.
Expansible chamber devices
With assembly or disassembly facilitating means
92 63, 92 98R, 92130A, F01B 2900
Patent
active
056760361
ABSTRACT:
A small envelope is achieved for an inelastically deformed connection between a spring cover and a central housing in a spring brake actuator. The connection is deformed radially inwardly and then extends radially outwardly from the radially inwardly extending portion. This eliminates the radially outwardly extending portion and flanges as are typically utilized in the prior art. Thus, a much smaller envelope is provided. In preferred embodiments of this invention, a seal groove is positioned axially adjacent a securement groove in the central housing. A seal is positioned in the seal groove to ensure an air-tight seal. In addition, a unique diaphragm guiding structure is incorporated into one embodiment of this invention.
REFERENCES:
patent: 3020094 (1962-02-01), Murty et al.
patent: 3630093 (1971-12-01), Morse
patent: 4729290 (1988-03-01), Ewald et al.
patent: 4887513 (1989-12-01), Ewald et al.
patent: 5433138 (1995-07-01), Choinski et al.
Denion Thomas E.
Indian Head Industries Inc.
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