Expansible chamber devices – With flexible transmission element secured to working member
Patent
1990-05-07
1991-06-04
Kwon, John T.
Expansible chamber devices
With flexible transmission element secured to working member
92165R, 92168, 277208, 277188R, 277123, 277124, F01B 900
Patent
active
050204211
ABSTRACT:
A working cylinder without piston rod in the form of a band cylinder. The band (3) in the cylinder covers (8) penetrates a receiving chamber (10) for a sealing and a guide member. Each sealing member comprises a strip-like sealing element on both sides of the band, made of elastic material and, on the piston side, in the form of a lip seal. The sealing elements (12, 13) are installed in the receiving chamber (10) with elastic pre-stressing relative to the band (3). Each guide member facing the sealing member has on both sides of the band (3) a rib-like guide element (23, 24), which is also elastically forced against the band (3) by pre-stressing the sealing elements (12, 13). The guide elements (23, 24) terminate in stop faces (28) with clearance (29) in front of the wall (15) of the receiving chamber (10). The result is that the band (3) can be deflected elastically from its desired position only by the amount of the clearance ( 29); subsequently the guide elements (23, 24) brace themselves form-lockingly against the cylinder cover (8) and prevent any further deflection of the band.
REFERENCES:
patent: 2666658 (1954-01-01), Laucks
patent: 4057257 (1977-11-01), Berg
patent: 4121840 (1978-10-01), Berg
patent: 4522113 (1985-06-01), Tsuno
patent: 4526386 (1985-07-01), Repella
patent: 4807890 (1989-02-01), Gorman et al.
Denion Thomas
Knorr-Bremse AG
Kwon John T.
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