Brakes – Operators – Spring
Patent
1984-03-05
1986-09-02
Stoner, Jr., Bruce H.
Brakes
Operators
Spring
310 77, 318372, F16D 6521
Patent
active
046090800
ABSTRACT:
A spring engaged and magnetically disengaged disc brake for engaging two opposing flat surfaces of a rotating disc such as to decelerate the rotating disc. The brake device includes a frame mounted in a fixed position relative to the rotating disc and a pair of identical brake subassemblies interposed portions of the frame and each of the opposing flat surfaces of the rotating disc. Each of the brake subassemblies includes an electromagnet fixedly interconnected with the frame, an armature interposed the electromagnet and one of the flat surfaces of the rotating disc, a spring interposed the frame and the armature to bias the armature towards the rotating disc when the electromagnet is de-energized, and a brake lining interposed the armature and the rotating disc. The frame may be formed of two magnet bodies fixedly interconnected with each other or of a single U-shaped stamping. The electromagnets for the brake subassemblies are preferably electromagnetic coils axially aligned with each other to provide an even force on both opposing surfaces of the rotating disc.
REFERENCES:
patent: 2983339 (1961-05-01), Neff
patent: 3665231 (1972-05-01), Wendler
patent: 3983971 (1976-10-01), Kawai
patent: 4049089 (1977-09-01), Rundle
patent: 4142610 (1979-03-01), Alexander et al.
patent: 4226307 (1980-10-01), Dorot
Diefendorf Richard R.
Facet Enterprises Inc.
Stoner Jr. Bruce H.
VanOphem Remy J.
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