Cleaning and liquid contact with solids – Apparatus – Plural – separate – work treating or holding receptacles or...
Patent
1991-10-28
1993-10-12
Roberts, Edward L.
Cleaning and liquid contact with solids
Apparatus
Plural, separate, work treating or holding receptacles or...
15 84, 280711, 298 11, E01H 104
Patent
active
052516520
ABSTRACT:
A vehicle having a collecting and hauling system for collecting and hauling refuse in a containment vessel to a predetermined location. In the illustrated embodiment, a street sweeper having a street sweeping system utilizes a vertically extendable mast for elevating its hopper for dumping purposes. Additionally, air springs are provided to the wheel suspension system so that the air springs, when inflated, elevate the chassis and street sweeping system for road travel. When deflated, the chassis is lowered into solid support on the suspension system to provide a more rigid suspension for improved street sweeping and hopper dumping operation. Also, the street sweeper has a conveyor for conveying the dirt from dirt collection means upwardly into the hopper. A second air spring having resilient chamber walls is provided to support the conveyor means in movable relation so that it may be rotated upwardly in travelling position by inflation of the air spring and lowered into operating position by deflation thereof. The conveyor is preferably suspended from the chassis by pivotally hanging links to permit the conveyor to move between raised and lowered positions. Also, the street sweeping system includes a rotary broom which is pivotally carried, and third adjustable air springs are provided to control the vertical position of the broom and its pressure against the ground by the air pressure in the resilient-walled third air springs.
REFERENCES:
patent: 2998264 (1961-08-01), Stump
patent: 3064761 (1962-11-01), Ramsey
patent: 3293679 (1966-12-01), Murphy
patent: 4171551 (1979-10-01), Hildebrand et al.
patent: 4856812 (1989-08-01), Stephens et al.
Drawing No. 49080 of Hendrickson Suspension "HA-Single" Axle.
Air Spring No. 1R8-021 Manufactured by Goodyear Jul. 1988.
Pp. 48-49 of Athey Parts Manual for Models AHL & ABD-Single Engine Sweepers.
Brouchure for Two New Masts for Forklifts Manufactured by Olofsson Corp. 1989.
1979 Brochure by the Knickerbocker Company.
Star Roger D.
Strauser Daniel P.
Elgin Sweeper Company
Roberts Edward L.
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