Spring devices – Vehicle – Comprising compressible fluid
Reexamination Certificate
2003-08-21
2011-10-11
Burch, Melody M (Department: 3657)
Spring devices
Vehicle
Comprising compressible fluid
C188S033000, C188S361000, C188S15300R
Reexamination Certificate
active
08033533
ABSTRACT:
An air spring actuated brake assembly for a railway vehicle braking system is provided which comprises an air spring disposed between a mounting member for attachment to the rigid structure of the braking system and a push rod attached thereto for longitudinal movement in an outward direction upon actuation thereof to initiate a braking sequence of the railway vehicle braking system. The air spring actuated brake assembly of the present invention allows for improved control of the brake shoe forces including visual travel measurement indication which is especially desirable during light load conditions. Additionally the air spring actuated brake assembly of the invention allows for the visual inspection and simple replacement of an inflatable spring should an air leak in the actuator occur. Currently used brake assemblies employing cylinder type actuators may be retrofitted with the air spring actuator of the invention.
REFERENCES:
patent: 2879077 (1959-03-01), Chalmers
patent: 3768826 (1973-10-01), Hickman
patent: 4693486 (1987-09-01), Pierce et al.
patent: 4711464 (1987-12-01), Bilas
patent: 4846785 (1989-07-01), Cassou et al.
patent: 6116385 (2000-09-01), Ring
patent: 6142480 (2000-11-01), Streitman et al.
patent: 6267043 (2001-07-01), Plantan et al.
patent: 6279689 (2001-08-01), Zemyan
patent: 6279696 (2001-08-01), Daugherty et al.
patent: 6619443 (2003-09-01), Ring et al.
patent: 6792704 (2004-09-01), Johnson
Graves Eric S.
Ring Michael E.
Tinch Frank E.
Voong Gary L.
Burch Melody M
James Ray & Associates, LLC
WABTEC Holding Corp.
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