Expansible chamber devices – Fluid conduit or port in fixed wall of working chamber
Patent
1998-08-17
2000-04-04
Lopez, F. Daniel
Expansible chamber devices
Fluid conduit or port in fixed wall of working chamber
921711, F01B 3100, F16J 1004
Patent
active
060447524
ABSTRACT:
An inner cylinder 6 is disposed in an outer cylinder 5, and the interior of the inner cylinder 6 is defined into an upper chamber a and a lower chamber b by a piston 3. A space between the outer cylinder 5 and the inner cylinder 6 defines an oil passage c which is communicated with the upper chamber a. A through hole-like plug which is attached to means P is formed in a bottom 5a of the outer cylinder 5. A female plug 11 and a male plug 12 are inserted from opposite ends of the plug accommodating means P, and a female screw portion 11n and a male screw portion 12b are formed on tip ends of the female plug 11 and the male plug 12, respectively, are threaded to each other. A recess 11d of the female screw 11n is brought into communication with the oil passage c through a first communication passage R.sub.1, and a recess 12d of the male screw 12n is brought into communication with the lower chamber b through a second communication passage R.sub.2.
REFERENCES:
patent: 2401378 (1946-06-01), Smith
patent: 2946550 (1960-07-01), Wilde
patent: 3272132 (1966-09-01), Stoelting et al.
patent: 3500759 (1970-03-01), Potter et al.
patent: 4050359 (1977-09-01), Mayer
patent: 4798128 (1989-01-01), Mita
Lopez F. Daniel
Showa Corporation
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