Expansible chamber devices – Convertible – or changeable by assembly or disassembly
Patent
1982-12-14
1985-06-18
Garrett, Robert E.
Expansible chamber devices
Convertible, or changeable by assembly or disassembly
92110, 92128, 92130D, 92165PR, 92166, 137270, F01B 2904
Patent
active
045235155
ABSTRACT:
In order to enable a piston cylinder unit 1,2 with air entry through a hollow shaft 6, to be operated in either mode of operation with a single type of shaft, it is proposed in accordance with the invention to manufacture the shaft 6 in three parts, namely an upper air inlet portion 6a, an intermediate portion 6b which provides access for air to the cylinder via one or more apertures 18, and an operating end portion 6c. These three parts are threaded together and sealed by seals 21 and 24. Captive nuts 3 and 8 are provided at both ends of the cylinder so that the cylinder may be attached to a yoke 4 by either end, with the opposite end carrying a bearing 9 for the air inlet portion 6a of the shaft. If it is desired for the piston to operate in the opposite mode of operation, the portions 6a and 6c are interchanged and the cylinder is attached to the yoke using the captive nuts 8 rather than the nuts 3.
REFERENCES:
patent: 2643667 (1953-06-01), Dahl
patent: 2743703 (1956-05-01), Miller
patent: 2903011 (1959-09-01), Long
patent: 2937622 (1960-05-01), Brimhall
patent: 3177984 (1965-04-01), Taylor
patent: 3244191 (1966-04-01), Grunau et al.
patent: 3313215 (1967-04-01), Bieri
patent: 3835753 (1974-09-01), Bunyard
APV Company Limited
Garrett Robert E.
Meyer Richard S.
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