Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Reexamination Certificate
2007-04-03
2007-04-03
Koczo, Jr., Michael (Department: 3746)
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
C137S856000
Reexamination Certificate
active
10380982
ABSTRACT:
A valve assembly of hermetic compressor is disclosed, in which a valve insertion groove (44) and (45) are formed. The valve insertion groove (44) includes a suction opening (42) on a head (40) provided between a cylinder (5) and a head cover (10), and the valve insertion groove (45) includes a discharge opening (43). An insertion type suction valve (50) and an insertion type discharge valve (60) are connected to said valve insertion grooves (44) and (45) respectively by spot welding. Accordingly, the valve assembly of hermetic compressor can make the valve smaller and simpler, so that reduced fabricating cost and improved productivity can be obtained. Also, at the same time dead volume can be reduced, thereby improving the compression efficiency.
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patent: 5456287 (1995-10-01), Leu
patent: 5934305 (1999-08-01), Cho
patent: 6296014 (2001-10-01), Miura et al.
patent: 1158389 (1997-09-01), None
patent: 110918 (1975-01-01), None
patent: 03260383 (1991-11-01), None
Kim Hyeon
Sim Jai-Seong
Koczo, Jr. Michael
LG Electronics Inc.
McKenna Long & Aldridge LLP
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