Hand pump for evacuating and charging a refrigerating system

Details Hand pump for evacuating and charging a refrigerating system Hand pump for evacuating and charging a refrigerating system

1993-09-08

1994-11-15

Sollecito, John M.

Refrigeration

With indicator or tester

62292, 417 63, 417544, F25B 4900

Patent

active

053636651

ABSTRACT:
A device for evacuating and charging refrigerant in a refrigerant circuit (64) includes a hand pump to evacuate the circuit. The pump has a pump cylinder (10), in which a pump piston (12) is movable to and fro by a piston rod (16) which has a pump handle (14) mounted thereon. The circuit is charged with refrigerant from a container (18), which extends in the longitudinal direction of the pump cylinder (10) and is fastened to the cylinder.

REFERENCES:
patent: 1705401 (1929-03-01), Grimley
patent: 4441330 (1984-04-01), Lower et al.
patent: 4698983 (1987-10-01), Hechavarria

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