Baths – closets – sinks – and spittoons – Pool type – With cleaning means
Patent
1997-09-08
1999-02-02
Walczak, David J.
Baths, closets, sinks, and spittoons
Pool type
With cleaning means
4509, E04H 400
Patent
active
058648968
ABSTRACT:
A main drain system for use in a swimming pool installation including a swimming pool and a recirculating system. The recirculating system includes a skimmer device coupled to a pump and a filter assembly for recirculating the water in the swimming pool. The main drain system includes a vacuum module mounted adjacent the swimming pool, a conduit coupling the vacuum module to the pump, and a conduit coupling the vacuum module to the main drain.
REFERENCES:
patent: 4211249 (1980-07-01), Richards
patent: 4454035 (1984-06-01), Stefan
patent: 4530120 (1985-07-01), Etani
patent: 4776953 (1988-10-01), Frentzel
patent: 4902413 (1990-02-01), Surber, III et al.
patent: 5135579 (1992-08-01), Goettl
patent: 5265631 (1993-11-01), Goettl
Goltry Michael W.
Parsons Robert A.
Walczak David J.
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