Liquid purification or separation – Processes – Separating
Patent
1988-11-17
1990-05-01
Spear, Frank
Liquid purification or separation
Processes
Separating
210108, 210169, 210411, 2104162, E04H 320
Patent
active
049216171
ABSTRACT:
A conventional filtering system of a swimming pool is modified by the provision of an adaptor which is shaped to be inserted into the discharge opening of the pool skimmer so as to prevent extraction of water from the pool into the filter system. The plug member is shaped with a lower cylindrical plug portion two inches in diameter so as to insert into the discharge opening. A channel runs along the length of the plug member and opens at its upper end into a female screw threaded coupling for receiving the conventional male screw threaded end of a garden hose through which fresh water is supplied for the backwashing of the filter.
REFERENCES:
patent: 2980256 (1961-04-01), Nash
patent: 3117584 (1964-01-01), Elenbaas
patent: 3252575 (1966-05-01), Jacuzzi
patent: 3365064 (1968-01-01), Horan
patent: 3535161 (1970-10-01), Gutrich
patent: 3957644 (1976-05-01), Edmonson
patent: 4030513 (1977-06-01), McKenzie
patent: 4154679 (1979-05-01), Farage
patent: 4194975 (1980-03-01), Baker
patent: 4348281 (1982-09-01), Perry et al.
patent: 4454035 (1984-06-01), Stefan
patent: 4505643 (1985-03-01), Mills et al.
patent: 4519914 (1985-05-01), Etani
patent: 4676914 (1987-06-01), Mills et al.
patent: 4704202 (1987-11-01), Poyner
patent: 4714551 (1987-12-01), Bachhofer et al.
patent: 4737279 (1988-04-01), Lewis
patent: 4746424 (1988-05-01), Drew
patent: 4849024 (1989-07-01), Supra
Antoine Arthur J.
Antoine Douglas J.
Ade Stanley G.
Battison Adrian D.
Drodge Joseph
Spear Frank
Thrift Murray E.
LandOfFree
Backwasher adaptor for swimming pool filter system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Backwasher adaptor for swimming pool filter system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backwasher adaptor for swimming pool filter system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-827983