Rolling wheel actuated pump and pump system

Details Rolling wheel actuated pump and pump system Rolling wheel actuated pump and pump system

1994-06-10

1996-04-02

Bertsch, Richard A.

Pumps

Operated by art device

417214, 417540, 184 31, E04B 900, B61K 300

Patent

active

055035361

ABSTRACT:
A pump having a reciprocating piston/plunger unit adapted to be actuated by a railway wheel rolling over it has a unitary plunger and piston, with the piston double-acting so that when the outlet pressure exceeds a certain value, the plunger remains retracted. An accumulator is provided in fluid communication with the outlet so as to store accumulated hydraulic pressure.

REFERENCES:
patent: 2238732 (1941-04-01), Huber et al.
patent: 3006148 (1961-10-01), Hause
patent: 3655296 (1972-04-01), McDougall
patent: 4211078 (1980-07-01), Bass
patent: 4214647 (1980-07-01), Lutts
patent: 4334596 (1982-06-01), Lounsberry, Jr.
patent: 4515530 (1985-05-01), Christoleit
patent: 4856617 (1989-08-01), Lounsberry, III et al.
M&S Moore & Steele Corporation brochure: "The 761 Hydraulube.TM. Hydraulic Rail Lubricator", admitted prior art.

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