Liquid cable

Power plants – Pressure fluid source and motor – Pulsator


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60586, 60591, 60533, F15B 708




A liquid cable transfer device is provided for transmitting input forces and/or displacements to corresponding output forces and/or displacements. The transfer device includes a section of tubing adapted to accommodate liquid under pressure, and terminal units attached to opposite ends of the tubing. Each unit includes a piston and a biasing element acting against the piston whereby the pistons of both units coact to maintain a certain minimum liquid pressure within the tubing. The piston displacement stroke within one terminal unit caused by either a pull or push input force being applied thereto is transmitted to the piston within the second terminal unit whereby the latter piston is displaced from its initial equilibrium position a predetermined amount.

patent: 2072693 (1937-03-01), Volkert
patent: 2246348 (1941-06-01), Coffey
patent: 2300675 (1942-11-01), Jones
patent: 2468489 (1949-04-01), D'Arcey
patent: 2536140 (1951-01-01), Rockwell
patent: 3618473 (1971-11-01), Miller
patent: 3985063 (1976-10-01), Lemon


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