Wiper mechanism

Details Wiper mechanism Wiper mechanism

1989-06-01

1990-05-01

Howell, Janice A.

Radiant energy

Fluent material containment, support or transfer means

With irradiating source or radiating fluent material

250435, 250432R, 250428, 250429, 250504R, 422 24, A61L 210

Patent

active

049221140

ABSTRACT:
A liquid purification system comprising a housing with inlet and outlet for the flow of the liquid to be purified. A source of ultraviolet is mounted within the housing surrounded by a sleeve of ultraviolet-transmissive material such as quartz. A rod mounted for reciprocal movement is mounted in the housing and extends out of the housing. On the rod is mounted wiper assemblies each one of which consists of tear-shaped plate to surround the sleeve, a washer of suitable material on the plate to make contact with the sleeve for wiping the outer surface of the sleeve as the rod is reciprocated, and a securing device to hold the washer in place. Pins with press-on nuts are employed to sandwich each wiper assembly together.

REFERENCES:
patent: 2667584 (1954-01-01), Rhodes
patent: 2670439 (1954-02-01), Rarney
patent: 2844727 (1958-07-01), Maciszewski et al.
patent: 3061721 (1962-10-01), Brenner
patent: 3182191 (1965-05-01), McFarland et al.
patent: 3456107 (1969-07-01), Robertson
patent: 3462597 (1969-08-01), Young
patent: 3562520 (1971-02-01), Hippen
patent: 3904363 (1975-09-01), Free
patent: 4017734 (1977-04-01), Ross
patent: 4151085 (1979-04-01), Malik
patent: 4766321 (1988-08-01), Lew et al.
patent: 4767932 (1988-08-01), Ellner

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