Liquid purification or separation – With time control
Patent
1998-06-12
2000-06-13
Drodge, Joseph W.
Liquid purification or separation
With time control
210100, 200 501, 368 9, B01D 35143, H01H 4300, H01H 112
Patent
active
060745525
ABSTRACT:
Electrical apparatus such as a timer for use in a water filter is formed integrally with a sealed housing. The housing has a resilient, depressible surface from which a projection extends. At least an end surface of the projection is electrically conductive. A pair of spaced-apart electrical contacts are located close to the end surface of the projection. Resilient deflection of the depressible surface causes the projection to come into contact with the electrical contacts, thereby making an electrical connection between them.
REFERENCES:
patent: 4127752 (1978-11-01), Lowthorp
patent: 4398074 (1983-08-01), Danielson et al.
patent: 4918270 (1990-04-01), Orrico
patent: 5744033 (1998-04-01), Bertrand et al.
patent: 5823229 (1998-10-01), Bertrand et al.
patent: 5858215 (1999-01-01), Burchard et al.
patent: 5888581 (1999-03-01), Primdahl et al.
Drodge Joseph W.
Trumeter Company Ltd.
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