Vacuum collector having sweeping device

Details Vacuum collector having sweeping device Vacuum collector having sweeping device

2008-01-15

2008-01-15

Redding, David (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C055S299000, C055S300000

Reexamination Certificate

active

07318249

ABSTRACT:
A vacuum collector includes a filter housing, a filter member disposed in the filter housing, and a sweeping device disposed in the filter member for sweeping the filter member, to sweep of dirt from the filter member, and to allow the dirt to be removed from the filter member and to be collected. The sweeping device includes one or more flaps rotatably disposed in the filter member with such as a shaft for engaging with the filter member to sweep of dirt from the filter member when the flap is rotated relative to the filter member. One or more resiliently blades may be attached to the flap for engaging with the filter member.

REFERENCES:
patent: 5159737 (1992-11-01), Kimura et al.
patent: 5519915 (1996-05-01), Hollowell
patent: 5814114 (1998-09-01), Stueble
patent: 6081961 (2000-07-01), Wang
patent: 2005/0000055 (2005-01-01), Cheng

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