Sweeper pickup hood with air lock

Details Sweeper pickup hood with air lock Sweeper pickup hood with air lock

1976-01-08

1977-08-30

Moore, Christopher K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15346, 15348, 15354, A47L 514

Patent

active

040444228

ABSTRACT:
A street sweeper with an air recirculation type pickup hood includes a vehicle mounted hopper, a blower and a debris pickup hood extending transversely across a swept surface. The blower withdraws air from the hopper and delivers it to one end of the hood and an air stream and entrained debris leave the other end of the hood through an air return line connected to the hopper. Relatively narrow surface engaging sealing flaps extend along the front and rear sides of the hood. At one end of the hood an air lock is provided having a pair of sequentially operating air lock doors for admitting large articles of debris such as cans or bottles that are windrowed to the entrance of the air lock by an angled deflector.

REFERENCES:
patent: 3491399 (1970-01-01), Dolan et al.
patent: 3512206 (1970-05-01), Young
patent: 3837038 (1974-09-01), Kimzey et al.
patent: 3872540 (1975-03-01), Block

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