Title: Fail-safe disc brake having a slack adjuster mechanism

Abstract: A fail-safe actuator for a disc brake system. A housing contains a reciprocating piston having a retracted position, a spring which urges the piston forward away from its retracted position, and means for retracting the piston against the urging of the spring. An expansible linkage, which connects the piston to the friction element of the brake is expanded in response to retraction of the piston, thereby maintaining a uniform spring expansion per brake application regardless of friction element wear.

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Inventors: Jones, Roger D. (Ramsey, NJ, US)
Buchholtz, Charles M. (New York, NY, US)

Application Number: 550884
Filing Date: 1975-02-18
Publication_date: 1976-12-07
Assignee: Abex Corporation (New York, NY)
Primary Class(es): 188/71.9 188/170, 188/196D
Other Classes:
US Patent Ref:

2870870	Jan, 1959	Voigt	188/196.
2966964	Jan, 1961	Brueder	188/71.
3292740	Dec, 1966	Swift	188/71.
3297115	Jan, 1967	Waloen et al.	188/170.
3547229	Dec, 1970	Pollinger	188/71.
3633715	Jan, 1972	Burnett	188/170.
3661230	May, 1972	Burnett	188/170.
3724620	Apr, 1973	Benson	192/89.
3726367	Apr, 1973	Evans	188/170.
3842949	Oct, 1974	Newstead	188/170.
3944027	Mar, 1976	Yamamoto	188/170.

Other Refs: 1,180,1371,219,380

Feb, 1970	UK
Jan, 1971	UK

Primary Examiner: Blix, Trygve M.
Assistant Examiner: Kazenske, Edward R.
Attorney: Kinzer, Plyer, Dorn & McEachran