Scrubber vac-fan seal

Details Scrubber vac-fan seal Scrubber vac-fan seal

1997-11-24

1999-08-31

Warden, Robert

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

153271, 277602, 277615, 277626, 277913, A47L 700

Patent

active

059437308

ABSTRACT:
A surface maintenance machine has a body, wheels for supporting the body, a source of cleaning solution on the body and a conduit for applying the cleaning solution to a surface to be cleaned. There are scrub brushes on the body and there is a squeegee carried by the body. A container for used cleaning solution is located on the body and there is a vacuum system, including a vacuum fan, for removing used cleaning solution from adjacent the squeegee and conveying it to the used cleaning solution container. The vacuum system includes a conduit between the used cleaning solution container and the vacuum fan. There is a seal extending about this conduit, with the exterior of the seal being exposed to atmospheric pressure and the interior being exposed to the less than atmospheric pressure of the vacuum system. The seal has connected annular lip portions, with the pressure difference between opposite sides of the seal moving said lip portions into tight sealing contact with the conduit and adjacent portions of the vacuum system.

REFERENCES:
patent: 4348783 (1982-09-01), Swanson et al.
patent: 4463474 (1984-08-01), Jacobs
patent: 4557739 (1985-12-01), Fortmann et al.
patent: 4650504 (1987-03-01), Howeth
patent: 4723337 (1988-02-01), Ellison et al.
patent: 4819676 (1989-04-01), Blehert et al.
patent: 4964189 (1990-10-01), Rau et al.
patent: 4998740 (1991-03-01), Tellier
patent: 5093955 (1992-03-01), Blehert et al.
patent: 5205014 (1993-04-01), Yoo
patent: 5331713 (1994-07-01), Tipton
patent: 5369838 (1994-12-01), Wood et al.
patent: 5473792 (1995-12-01), Kent et al.
patent: 5813086 (1998-09-01), Ueon et al.

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