Portable screen with raising and levelling system

Details Portable screen with raising and levelling system Portable screen with raising and levelling system

1989-01-13

1990-05-08

Hajec, Donald T.

Classifying, separating, and assorting solids

Sifting

Elements

209315, 209319, 209935, 212189, 2481882, 254423, 2807661, B07B 128

Patent

active

049235974

ABSTRACT:
A portable screen with a raising and levelling system for raising a frame of the system containing a vibrating screen away from ground on which the system is positioned and for levelling the frame and vibrating screen for improved operation. A wheel assembly rigidly fixed relative to the frame extends from the frame at a first end wall where a first raising and levelling assembly is provided. At an opposite end wall of the frame, a second raising and levelling system is provided. First and second shedding roofs are respectively positioned over the wheel assembly and first and second hydraulic raising and levelling assemblies. With the portable screen having a raising and levelling system as disclosed, the system may be operated on sloping ground and/or ground having undulations and other protrubances.

REFERENCES:
patent: D263836 (1982-04-01), Read
patent: 1806934 (1931-05-01), Deister
patent: 1845373 (1932-02-01), Weber
patent: 3033523 (1962-05-01), Mulholland et al.
patent: 3307698 (1967-03-01), Haffner
patent: 3627268 (1971-12-01), Wills
patent: 3704834 (1972-12-01), Nilsson et al.
patent: 3909401 (1975-09-01), Thompson
patent: 4061309 (1977-12-01), Hanser
patent: 4176066 (1979-11-01), Sloan
patent: 4197194 (1980-04-01), Read
patent: 4237000 (1980-12-01), Read et al.
patent: 4256572 (1981-03-01), Read
patent: 4664791 (1987-05-01), McClain et al.
patent: 4785761 (1988-11-01), Greenbank
Hoehn Portable Screening Plant, no date.
Loader-Screen Portable Screening Plant, no date.
Kolberg 1400 no date.
Kolberg 1900 no date.
Kolberg 1800 no date.

Affiliated with

Also associated with

Rating

Portable screen with raising and levelling system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable screen with raising and levelling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable screen with raising and levelling system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2347455