Dispensing tool assembly for evacuating and charging a fluid sys

Details Dispensing tool assembly for evacuating and charging a fluid sys Dispensing tool assembly for evacuating and charging a fluid sys

1998-06-29

2000-02-29

Douglas, Steven O.

Fluent material handling, with receiver or receiver coacting mea

Filling means with receiver or receiver coacting means

With receiver and supply securing means

141 59, 141 65, 141 67, 141383, 141 21, 62292, 13762566, 2511499, 285315, B65B 300

Patent

active

060297204

ABSTRACT:
A generally oval upper body supports a generally cylindrical lower body comprising an outlet tube on which is mounted an inner piston containing an annular resilient sealing member adapted to be connected to the tubular inlet fitting of a liquid coolant system. The lower body supports a set of arcuate collar sections which are cammed inwardly for gripping external threads on the inlet fitting in response to axial movement of an outer air actuated annular piston surrounding the outlet tube. The sealing member is compressed axially into the upper face of the inlet fitting in response to axial movement of the inner air actuated annular piston confined between the outlet tube and the outer piston. A tubular valve member comprising an integral air actuated annular piston is supported for axial movement within the upper body in alignment with the outlet tube for selectively connecting the passage within the outlet tube to a suction passage for evacuating the coolant system and then to a fluid supply passage for filling the system. A streamlined obturator mounted in the upper body is aligned axially with the outlet tube and comprises arcuate passageways for flow of the fluid following connection of the valve member to the outlet tube.

REFERENCES:
patent: 4526406 (1985-07-01), Nelson
patent: 4643228 (1987-02-01), Spencer
patent: 4664151 (1987-05-01), Piet
patent: 4805417 (1989-02-01), Weaver et al.
patent: 4869300 (1989-09-01), Gudenau et al.
patent: 4889149 (1989-12-01), Weaver et al.
patent: 5560407 (1996-10-01), Swinford
patent: 5704383 (1998-01-01), Kammeraad et al.

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