Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – With means for selectively changing the speed or force...
Patent
1995-07-28
1996-07-09
Nguyen, Hoang
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
With means for selectively changing the speed or force...
92152, F15B 1100, F01B 700
Patent
active
055334350
ABSTRACT:
A first cylinder of a smaller diameter and a second cylinder of a larger diameter are connected in a coaxially intercommunicating state. A first piston of a smaller diameter which is hermetically slidable within the first cylinder is mounted on a rod which is commonly passed through the two cylinders in such a way as to permit the first piston to move also in the second cylinder. Received in the second cylinder is a second piston which is hermetically slidable only in the second cylinder and which is adapted to be integrally coupled with the first piston during movements within the second cylinder.
REFERENCES:
patent: 2472236 (1949-06-01), Thomas
patent: 3502001 (1970-03-01), Moore
patent: 4930402 (1990-06-01), Forchheim et al.
patent: 5361680 (1994-11-01), Matsui
patent: 5435228 (1995-07-01), Snitgen
English Abstract of JP 5-16411, Jun. 29, 1993, Akio Matsui.
English Abstract of JP 6-42507, Feb. 15, 1994, Akio Matsui.
Nguyen Hoang
SMC Corporation
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