Collection devices

Details Collection devices Collection devices

1993-06-21

1995-09-19

Moore, Christopher K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15345, 15409, A47L 518

Patent

active

054506492

ABSTRACT:
A collection device having a duct for transporting material entrained in a stream of pressurized primary air from a collection mouth at an upstream end of the duct to a downstream region of the duct for collection. The device provides at least one primary air inlet opening into the duct for delivering pressurized air to form a primary air stream directed generally downstream of the duct and at least one secondary air outlet for delivering pressurized air to form a secondary air stream directed onto an area of the surface confronting the collection mouth. The secondary air stream serves to dislodge material on the confronting area for entrainment in the primary air stream and transportation from the collection mouth to the downstream region of the duct for collection.

REFERENCES:
patent: 751786 (1904-02-01), Elston
patent: 2902708 (1959-09-01), Riley
patent: 4018483 (1977-04-01), Smith
patent: 5280667 (1994-01-01), Coathupe

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