Spring loaded cylinder

Details Spring loaded cylinder Spring loaded cylinder

2006-10-03

2006-10-03

Kramer, Devon C. (Department: 3683)

Brakes

With condition indicator

Electrical

C188S170000

Reexamination Certificate

active

07114597

ABSTRACT:
A spring storage cylinder, for the generation of braking forces for the auxiliary and parking brake effect, comprises a piston, arranged in a housing, which may be displaced for the operation of a brake lever. The piston is pretensioned against the brake lever by a spring. A release spindle is provided, by which the piston may be moved from an extended position, operating the brake lever, in the braking position, against the force of a spring into a withdrawn position, releasing the brake. A primary chamber is provided in the housing, pressurized to a certain pressure, in which, when an operating pressure is exceeded, the piston is moved into the withdrawn position against the pressure of the spring. At least one contact switch is provided to determine the position of the piston in the housing. The operating status of the spring storage cylinder may be monitored by the contact switch(es), the storage function and the release function controlled and any damage to the storage spring determined.

REFERENCES:
patent: 3926094 (1975-12-01), Kurichh et al.
patent: 4796513 (1989-01-01), Hata et al.
patent: 5572187 (1996-11-01), Williford
patent: 5753807 (1998-05-01), Trueman et al.
patent: 5816371 (1998-10-01), Buckley et al.
patent: 5825287 (1998-10-01), Zarybnicky et al.
patent: 6255941 (2001-07-01), Osterman et al.
patent: 6311804 (2001-11-01), Baalmann et al.
patent: 6480107 (2002-11-01), Stonehocker et al.
patent: 2004/0060784 (2004-04-01), Gravier
patent: 28 46 652 (1980-05-01), None
patent: 32 47 210 (1984-07-01), None
patent: 38 36 080 (1990-04-01), None
patent: 44 09 351 (1995-09-01), None
patent: 44 09 351 (1995-09-01), None
patent: 2766534 (1999-01-01), None
patent: WO 97/20153 (1997-06-01), None
patent: WO 98/37338 (1998-08-01), None
International Search Report.
WABCO Letter of Nov. 29, 2004 to Deutsches Patent-und Markenamt, pp. 1-6.

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