Quiet vacuum cleaner using a vacuum pump with a lobed chamber

Details Quiet vacuum cleaner using a vacuum pump with a lobed chamber Quiet vacuum cleaner using a vacuum pump with a lobed chamber

1998-02-09

2000-01-18

Warden, Sr., Robert J.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

418 612, 418122, 418129, A47L 512

Patent

active

060147911

ABSTRACT:
A vacuum cleaner has a vacuum pump with a housing including a lobed chamber having an epitrochoidal planform satisfying the equation

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