Lift off mechanism for a vacuum cleaner

Details Lift off mechanism for a vacuum cleaner Lift off mechanism for a vacuum cleaner

1996-07-24

1999-11-02

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15333, 15361, A47L 534

Patent

active

059746254

ABSTRACT:
A height adjustment mechanism for a vacuum cleaner includes forwardly positioned lift off wheels which move downwardly when the handle of the vacuum cleaner is moved to the raised position. Two transfer members convert the rotational movement of the handle to vertical motion of the lift off wheels.

REFERENCES:
patent: 3579699 (1971-05-01), Balzer
patent: 4446594 (1984-05-01), Watanabe et al.
patent: 4782552 (1988-11-01), Bartlett et al.
patent: 5222276 (1993-06-01), Glenn, III
patent: 5255411 (1993-10-01), Mendes da Costa
patent: 5269042 (1993-12-01), Stephens et al.
patent: 5467502 (1995-11-01), Johnson et al.
patent: 5551120 (1996-09-01), Cipolla et al.

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