Pump down tool with inflatable valve member

Details Pump down tool with inflatable valve member Pump down tool with inflatable valve member

1994-03-18

1994-10-25

Sollecito, John M.

Refrigeration

Processes

Assembling, charging, or repairing of refrigeration producer

62292, 251 611, 138 93, F25B 4500

Patent

active

053577639

ABSTRACT:
A pump down tool for facilitating the servicing of a refrigeration system. The tool utilizes a pump down head having an inflatable balloon member for blocking the liquid line of the refrigeration system, thereby isolating the system refrigerant within the condenser of the refrigeration system.

REFERENCES:
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patent: 3299648 (1967-01-01), White et al.
patent: 3561090 (1971-02-01), Fritch
patent: 3840967 (1974-10-01), Olson
patent: 3875756 (1975-04-01), Olson
patent: 3935713 (1976-02-01), Olson
patent: 3996765 (1976-12-01), Mullins
patent: 4458497 (1984-07-01), Kubik
patent: 4996848 (1991-03-01), Nelson et al.
patent: 5024061 (1991-06-01), Pfeil, Jr. et al.
patent: 5046320 (1991-09-01), Loose et al.
patent: 5172557 (1992-12-01), Hubbell, Jr.

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