Expansible chamber devices – Displacement control of plural cylinders arranged in... – Having motor-operated adjustment
Patent
1980-06-25
1982-10-05
Maslousky, Paul E.
Expansible chamber devices
Displacement control of plural cylinders arranged in...
Having motor-operated adjustment
92130D, 92133, 267175, F15B 1524, F01B 3100
Patent
active
043523200
ABSTRACT:
A single-acting operating cylinder assembly includes a cylinder and piston of rectangular cross section and a spring arrangement for initially forcing the piston into one operating position. The piston has an axial recess with transverse end walls. A stop block is located within the recess and securable to the cylinder for movement of the piston with respect to the stop block. The spring arrangement is formed by a plurality of side-by-side lying helical compression springs supported between the stop block and the recess end wall opposite the stop block. In one embodiment, the stop block is positioned with respect to the cylinder by an eccentric disk adjustable for adjusting both end positions of the piston in the same direction while retaining a constant piston stroke. In a second embodiment, fixed pins and an adjustable disk connect a modified stop block with the cylinder for adjustability of the length of the piston stroke with one of the piston end positions held constant.
REFERENCES:
patent: 1708171 (1929-04-01), Halvorsen
patent: 2270767 (1942-01-01), Platz
patent: 2355520 (1944-08-01), Fischer et al.
patent: 2735669 (1956-02-01), Seiler
patent: 2891784 (1959-06-01), Taylor
patent: 3495508 (1970-02-01), Allen
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