Fluid handling – Convertible – Unit orientable in a single location between plural positions
Patent
1985-01-09
1986-06-24
Cohan, Alan
Fluid handling
Convertible
Unit orientable in a single location between plural positions
251 635, 92151, F16K 31122
Patent
active
045962677
ABSTRACT:
A piston-driven valve includes a valve body provided with inlet and outlet openings, the communication between which may be interrupted by a valve member which is integral with a rod connected to a piston on which a valve control pressure is exerted. The piston is located in a head mounted on the valve body and receiving a system of reset springs of the driving piston. The head includes a valve being characterized in that it includes at least one head comprising a housing with a cylindrical bore, the walls of which are provided with passages for the control fluid. The upper end of the bore is closed by a cover. The piston and its system of reset springs are reversibly mounted in the head. The head is mounted on a base which is provided with openings for the control fluid and which cooperate with the passages, so that the control pressure enters the head either under the control piston or over the control piston. Fastening devices connect the base to the valve body, and also connect the driving piston of one head with the piston rod of another head, so as to allow several identical heads to be coupled.
REFERENCES:
patent: 2116046 (1958-05-01), Schmutz
patent: 2944520 (1960-07-01), Swanson
patent: 3150675 (1964-09-01), Phillips
patent: 4505188 (1985-03-01), Weydt
Cohan Alan
Joucomatic S.A.
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