Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1998-11-12
1999-09-21
Woo, Jay H.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210780, 210806, 210169, E04H 316
Patent
active
059549726
ABSTRACT:
A pool cleaner floats on the surface of a pool. The cleaner includes a pump and filter, the filter being connected downstream of the pump. A vacuum head, connected by a hose to the pump, is moved around the pool, to direct water from the pool through the pump and filter. Due to the absence of any filter on the upstream side of the pump, the cleaner maintains its efficiency for a longer time than comparable cleaners of the prior art. The cleaner may also include a rotary strainer, placed upstream of the pump, for removing large pieces of debris. The strainer includes a slidable, transparent access cover which allows visual monitoring of the condition of the strainer, and permits easy access to the interior of the strainer, for removal of debris. In another embodiment, the cleaner includes a filter unit having a continuous sheet of filter material which advances automatically when the filter material previously exposed to the water has become clogged. The cleaner therefore substantially speeds the process of cleaning a pool.
REFERENCES:
patent: 1920371 (1933-08-01), Franke
patent: 2646889 (1953-07-01), Dulak
patent: 2664203 (1953-12-01), Crane et al.
patent: 3012676 (1961-12-01), Englesberg
patent: 3273507 (1966-09-01), Handford
patent: 3397647 (1968-08-01), Daniel
patent: 3412862 (1968-11-01), Chaplin
patent: 3416176 (1968-12-01), Ravitts
patent: 3470822 (1969-10-01), Evans et al.
patent: 3581896 (1971-06-01), Kuhlman
patent: 3612721 (1971-10-01), Evans et al.
patent: 4154680 (1979-05-01), Sommer
patent: 4240174 (1980-12-01), Thiem et al.
patent: 4282095 (1981-08-01), Tsuhako
patent: 4485013 (1984-11-01), Cockman
patent: 4553902 (1985-11-01), Eberhardt
patent: 4581075 (1986-04-01), St. Martin
patent: 4654141 (1987-03-01), Frentzel
patent: 4746424 (1988-05-01), Drew
patent: 4836920 (1989-06-01), Miller, Jr.
patent: 4839063 (1989-06-01), Brooks
patent: 4867873 (1989-09-01), Akazawa
patent: 4880531 (1989-11-01), Blake et al.
patent: 4889622 (1989-12-01), Newcombe-Bond
patent: 4900432 (1990-02-01), Arnold et al.
patent: 5106492 (1992-04-01), Distinti et al.
patent: 5143605 (1992-09-01), Masciarelli
patent: 5350508 (1994-09-01), Van der Watt
patent: 5450644 (1995-09-01), Berman
patent: 5536397 (1996-07-01), D'Offay
patent: 5624238 (1997-04-01), Herbert
Eilberg William H.
Prince Fred
The Gadgeteers Inc.
Woo Jay H.
LandOfFree
Method of cleaning a pool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of cleaning a pool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of cleaning a pool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-76859