Bleed for a vacuum cleaner

Details Bleed for a vacuum cleaner Bleed for a vacuum cleaner

1995-09-08

1998-01-06

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15375, 15421, 251286, A47L 532

Patent

active

057040907

ABSTRACT:
A vacuum cleaner attachment for use in a suction line comprises a bleed section having an aperture extending into an interior portion of the attachment and a collar disposed in the bleed section. The collar is positionable in only a finite number of stable orientations wherein the collar covers the aperture in a first orientation and exposes the aperture in a second orientation.

REFERENCES:
patent: 953825 (1910-04-01), Gekeler
patent: 1106231 (1914-08-01), Marshall
patent: 2631326 (1953-03-01), Smith, Jr.
patent: 2747944 (1956-05-01), Baermann
patent: 2978733 (1961-04-01), Wahlborg
patent: 3142857 (1964-08-01), Fresard et al.
patent: 3335727 (1967-08-01), Spoto
patent: 3633239 (1972-01-01), Meyerhoefer
patent: 4275474 (1981-06-01), Woodard
patent: 4961245 (1990-10-01), Barnes, Jr. et al.
patent: 5050266 (1991-09-01), Schneider
Drawing of Hoover "Automatic Power Drive Dial-a-Matic"--Figure 1.
Drawing of Hoover "Automatic Power Drive Dial-a-Matic"--Figure 2.

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