Piston-cylinder assembly

Details Piston-cylinder assembly Piston-cylinder assembly

1987-10-21

1990-01-30

Garrett, Robert E.

Expansible chamber devices

With inspection window in expansible chamber wall portion

With lock

92165PR, 92177, 91DIG4, F01B 2526, F01B 3112

Patent

active

048965847

ABSTRACT:
A piston-cylinder assembly wherein in the cylinder housing there is provided a cylinder chamber extending in axial direction, in which cylinder chamber a piston is movably guided in axial direction. Both the piston and also the cylinder chamber have a cross section which is different from a circular shape. A permanent-magnet piece is arranged fixedly in the area of the outer circumference of the piston. A switch arranged in the area of the linear path of movement of the permanent-magnet piece is provided on the outside on the cylinder housing, which switch can be operated without contact by the magnetic field of the permanent-magnet piece.

REFERENCES:
patent: 2446657 (1948-08-01), MacLeod et al.
patent: 2983256 (1961-05-01), Seeloff
patent: 3180236 (1965-05-01), Beckett
patent: 4176586 (1979-12-01), Stoll et al.
patent: 4378726 (1983-04-01), Stoll
patent: 4488477 (1984-12-01), Miyamoto
patent: 4549469 (1985-10-01), Plester et al.
patent: 4664019 (1987-05-01), Lipinski et al.
patent: 4744287 (1988-05-01), Miyamoto

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