Metal tools and implements – making – File cutting – Idle cutter – hammer-operated
Patent
1998-05-05
1999-12-21
Williams, Hezron
Metal tools and implements, making
File cutting
Idle cutter, hammer-operated
73328, 62125, G01F 2302, F25B 4900
Patent
active
060034106
ABSTRACT:
A system and method for measuring a refrigerant in a vapor compression system utilizes a sight glass in fluid communication with the condenser. Refrigerant collects in the sight glass and, upon reaching equilibrium, can be read to provide an accurate measure of the amount of refrigerant in the entire vapor compression system.
REFERENCES:
patent: 2111283 (1938-03-01), Fish
patent: 2608301 (1952-08-01), Graves et al.
patent: 4454759 (1984-06-01), Pirkle
patent: 5711161 (1998-01-01), Gustafson
European Patent Office International Search Report, PCT/US 99/07318, Aug. 2, 1999.
Hill Frank H.
Judge John F.
Williams Hezron
Worth Willie Morris
York International Corporation
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