Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Interlocked discharge means – support and/or coupling
Patent
1974-01-21
1976-08-24
Sprague, Kenneth W.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
Interlocked discharge means, support and/or coupling
62 77, 62292, 13761405, 141349, 141382, 22240214, 251264, B65B 104
Patent
active
039761100
ABSTRACT:
A do-it-yourself kit for charging an automobile air conditioning system. A charging hose has a special delivery fitting to be connected first to the charging nipple on the suction side of the compressor of the operating system. Such fitting has a depressor to open the nipple valve and has a check valve to prevent escape of refrigerant by backflow through the hose. The fitting thus isolates the kit from refrigerant pressure. The charging hose also has an inlet fitting for attachment to the nipple of a pressurized refrigerant can, which has a depressor to open the nipple valve. Refrigerant then flows under can pressure to the system. Unused can refrigerant is saved by disconnecting the fittings in reverse order. Since the hose and kit are isolated from system pressure by the check valve, increased safety is obtained and the hose assembly can be made of low-cost materials which can be discarded after use.
REFERENCES:
patent: 1883201 (1932-10-01), Wheeler
patent: 3280879 (1966-10-01), Simms
Automotive Accessories & Parts, J. C. Whitney & Co., Catalog No. 286A, 1971, p. 104.
Capossela Ronald C.
Sprague Kenneth W.
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