F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
62/68
F25B 45/00 (2006.01) F16L 37/23 (2006.01) F16L 37/36 (2006.01) F16L 37/62 (2006.01) F25B 41/00 (2006.01)
Patent
CA 1301466
DISPENSING TOOL ASSEMBLY FOR CHARGING A REFRIGERANT INTO A SYSTEM Abstract of the Disclosure A tubular body supports a fluid actuated tubular piston con- nected to operate a coupling mechanism for releasably securing the body to a valve fitting on a refrigerant receiving system. The body encloses components which define a center passage connected to the fitting for first evacuating air from the system and then for directing liquid refrigerant into the system. The passage receives an elongated valve opening member which is fluid actuated to a position opening the valve fitting, and a movable valve member closes the passage to the flow of refrigerant. The fluid actuated coupling mechanism provides for con- venient and simple insertion of the tool assembly onto the fitting with no insertion force and also for automatic release of the tool assembly from the fitting after charging is completed. A fluid actuated valve member minimizes the volume of residue refrigerant which vaporizes when the tool assembly is removed from the fitting.
582095
Jones James M.
Weaver Kim A.
Gowling Lafleur Henderson Llp
Production Control Units Inc.
LandOfFree
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