Expansible chamber devices – Relatively movable working members – First working member moves second coaxial working member...
Reexamination Certificate
2011-06-21
2011-06-21
Lazo, Thomas E (Department: 3745)
Expansible chamber devices
Relatively movable working members
First working member moves second coaxial working member...
C092S013600, C092S13000R, C091S36300A
Reexamination Certificate
active
07963210
ABSTRACT:
A spring-loaded brake cylinder for commercial vehicles includes at least one spring-loaded brake piston that can be actuated by a pre-loaded spring and is supported in a housing. A mechanical emergency release device is provided for the emergency release of the spring-loaded brake cylinder. The emergency release device includes an indicator that has an indicator rod indicating the position of the spring-loaded brake piston. The rod extends through a threaded spindle of the emergency release device and is movable in the axial direction. A stop body is disposed in the region of one end of the indicator rod. The stop body is positively connected to the indicator rod by a detent connection produced by an axial relative movement between the indicator rod and the stop body.
REFERENCES:
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patent: 5943940 (1999-08-01), Angerfors
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patent: 2004/0060784 (2004-04-01), Gravier
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International Search Report dated Jan. 30, 2009 with English translation (four (4) pages).
Derouault Sylvain
Lanquetot Jacques
Crowell & Moring LLP
Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH
Lazo Thomas E
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