Brushing – scrubbing – and general cleaning – Attachments – For a vacuum cleaner
Patent
1993-08-06
1995-06-06
Roberts, Jr., Edward L.
Brushing, scrubbing, and general cleaning
Attachments
For a vacuum cleaner
15 17, E04H 416
Patent
active
054210542
ABSTRACT:
Discs and a footpad for devices such as automatic swimming pool cleaners are disclosed. The discs incorporate upwardly-extending, non-truncated fins protruding radially from their peripheries. The peripheries themselves, moreover, define a plurality of tongues for increased flexibility, and both the discs and footpad may include ramped segments facilitating movement over obstacles extending from swimming pool surfaces.
REFERENCES:
patent: 4095378 (1978-06-01), Urakami
patent: 4152802 (1979-05-01), Chauvier
patent: 4193156 (1980-03-01), Chauvier
patent: 4193469 (1980-03-01), Graf
patent: 4351077 (1982-09-01), Hoffman
patent: 4530125 (1985-07-01), Hoffman
patent: 4642833 (1987-02-01), Stoltz et al.
patent: 4742593 (1988-05-01), Kallenbach
patent: 4849024 (1989-07-01), Supra
patent: 4852211 (1989-08-01), Strausak
patent: 4949419 (1990-08-01), Kallenbach
patent: 4979986 (1990-12-01), Hill et al.
patent: 5014382 (1991-05-01), Kallenbach
patent: 5198156 (1993-03-01), Middleton et al.
Two photographs of a blue disc for a swimming pool cleaner (available to at least one of the named inventors prior to Aug. 6, 1993).
Two photographs of a beige disc and bearing the handwritten notation "Jandy" (available to at least one of the named inventors prior to Aug. 6, 1993).
Two photographs of a blue disc and bearing the handwritten notation "Kreepy Krauly" (available to at least one of the named inventors prior to Aug. 6, 1993).
One photograph of a black disc and bearing the handwritten notation "Baracuda" (available to at least one of the named inventors prior to Aug. 6, 1993).
Dawson Andrew W.
Evans John T.
Gazzola Alain J.
Marklew Robert W.
Rice Chris A.
Roberts, Jr. Edward L.
Zarina Holding C.V.
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