Paving machine with gravity feed hopper and auger mechanism

Details Paving machine with gravity feed hopper and auger mechanism Paving machine with gravity feed hopper and auger mechanism

1994-09-29

1997-04-01

Lisehora, James A.

Road structure, process, or apparatus

Process

In situ treatment of earth or roadway

404108, 404110, E01C 1912

Patent

active

056159730

ABSTRACT:
A paving machine has a gravity feed hopper which is capable of delivering by gravity to the paving apparatus substantially all of the paving materials stored in the hopper without employing any internal conveyors. The discharge opening of the hopper is selectively closed by a feeder gate, the degree of opening of which is preferably coordinated with other operating parameters of the machine such as vehicle speed, distributing auger height and/or speed, and screed operation. Use of the gravity feed hopper significantly reduces construction and maintenance costs, provides a more uniform feed of materials from the hopper, and permits the use of a smaller engine. The paving machine as thus constructed is also relatively easy to operate and thus can be controlled by a single operator seated in the vicinity of the screed.

REFERENCES:
patent: 1994812 (1935-03-01), Deicke
patent: 3453939 (1969-07-01), Pollitz et al.
patent: 3699855 (1972-10-01), Leister
patent: 3884395 (1975-05-01), Keenan
patent: 3907451 (1975-09-01), Fisher et al.
patent: 4708519 (1987-11-01), Davin et al.
patent: 4765772 (1988-08-01), Benedetti et al.
patent: 4818139 (1989-04-01), Brock et al.
patent: 4978068 (1990-12-01), Eldridge
patent: 5269626 (1993-12-01), Soliman et al.
Roadtec, an Astec Company; Roadtec RP 180 Bulletin.

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