High vacuum apparatus

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction

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Details

15327R, 15352, A47L 536

Patent

active

045312567

ABSTRACT:
A high vacuum apparatus includes a vacuum tank having a pair of upstanding conical side walls arranged with the centers thereof extending outwardly in opposite directions. A peripheral side wall structure interconnects the peripheral edges of the conical side walls to define an internal enclosure. An inlet opening is provided through one side wall adjacent the top of the tank and the top of the tank is open for connection to a vacuum source.

REFERENCES:
patent: 1691988 (1928-11-01), Olson
patent: 3585788 (1971-06-01), Wilson
patent: 3910781 (1975-10-01), Bryant
patent: 4017281 (1977-04-01), Johnstone
patent: 4162149 (1979-07-01), Mekelburg

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