Vacuum attachment for converting a standard vacuum into a...

Details Vacuum attachment for converting a standard vacuum into a... Vacuum attachment for converting a standard vacuum into a...

2007-11-13

2007-11-13

Snider, Theresa T. (Department: 1744)

Brushing, scrubbing, and general cleaning

Attachments

For a vacuum cleaner

C015S328000, C015S314000, C015S339000

Reexamination Certificate

active

10928500

ABSTRACT:
A vacuum attachment includes an aerodynamic bell housing, a distribution plate defining blast gate openings, blast gates, and means for biasing each gate toward a closed configuration. The plate attaches to the housing's first end. The gates attach to the plate for selectively covering the gate openings. An outer face of each gate includes an indented configuration. Gate openings may include internal threads. A filter may be positioned in the housing. The housing attaches to the vacuum's inlet port. Vacuum lines are inserted in the gate openings, moving the gates from closed to open configurations. The lines are locked into place by the gates' configurations and biasing means, and attached lines operate concurrently. Size and arrangement of the gate openings maintain the vacuum's airflow velocity and optimal flow patterns. To remove a line, it is withdrawn from the respective gate opening. The biasing means then automatically closes the corresponding gate.

REFERENCES:
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patent: 5983446 (1999-11-01), Hsia
patent: 6108863 (2000-08-01), Lin
patent: 6193461 (2001-02-01), Hablanian

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