Motor saw brake

Details Motor saw brake Motor saw brake

1986-05-05

1988-07-19

Falk, Joseph

Brakes

Wheel

Transversely movable

188171, 30382, B23D 5702

Patent

active

047578815

ABSTRACT:
A chain brake which is manually adjustable into a cocked position and releasable by means of stored electric energy and a trigger, includes a permanent magnet circuit in which a movable armature is a part of a latch which keeps the brake in the cocked position. The permanent magnet has a coil exerting a counter directional magnetic field to the permanent magnet when it passes current. The holding force on the latch decreases and the brake is released when current from a capacitor passes through the coil.

REFERENCES:
patent: 837854 (1906-12-01), Larson
patent: 2513192 (1950-06-01), McFarland
patent: 3991469 (1976-11-01), Frederickson
patent: 4573556 (1986-03-01), Andreasson
patent: 4586588 (1986-05-01), Nagashima et al.
patent: 4635364 (1987-01-01), Noll et al.
patent: 4653189 (1987-03-01), Andreasson

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