Liquid purification or separation – With repair or assembling means
Patent
1978-08-31
1980-05-27
Lacey, David L.
Liquid purification or separation
With repair or assembling means
210438, 210450, 210462, 55507, 55509, B01D 3502, B01D 3508
Patent
active
042049601
ABSTRACT:
Disclosed is a cylindrical closed strainer molded of a plastic in a unitary structure, which comprises a top plate, a bottom plate disposed opposite said top plate at a fixed interval therefrom and a cylindrical net stretched between the peripheries of said top plate and bottom plate, said top plate being possessed of snap fastening means on the upper surface thereof and provided with a through hole which has a diameter larger than the outside diameter of a suction pipe intended to be connected with the strainer body and is provided on the inner circumference of said through hole with a thin seal member coaxially containing a circular hole of a diameter smaller than said outside diameter of the suction pipe. Said suction pipe is provided with a flange which is adapted to rest stably on the upper surface of said top plate. When the suction pipe is forcibly inserted through the circular hole of said seal member until the fastening means of the top plate snap into fast engagement with the flange, the suction pipe and the strainer body are united with force enough to defy inadvertent separation.
REFERENCES:
patent: 2253232 (1941-08-01), Gheen
patent: 2290403 (1942-07-01), Wyss
patent: 2416475 (1947-02-01), Friedman
patent: 2521094 (1950-09-01), Rein
patent: 2641365 (1953-06-01), Lindeen
patent: 2810482 (1957-10-01), Kasteen
patent: 3154487 (1964-10-01), Thornton et al.
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patent: 3833124 (1974-09-01), Mizusawa et al.
patent: 4014796 (1977-03-01), Yeda et al.
patent: 4118323 (1978-10-01), Sugiyama et al.
Sugiyama Masaaki
Yuda Takuo
Beart Robert W.
Halvorsen Jack R.
Lacey David L.
Nifco Inc.
Yamakawa Industry Company Ltd.
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