Mobile material screening apparatus
First Claim
1. A mobile material screening apparatus comprisinga sloped screening box mounted on an upper part of the apparatus on which material to be screened may be deposited, the screening box being sloped from a high side of the apparatus to a low side and having an open side at the low side of the apparatus so that reject material may pass over the screening box;
- wheels located at a rear part of the apparatus to enable the apparatus to be moved;
means for raising the wheels from ground contact;
coupling means located at a front part of the apparatus to enable the apparatus to be coupled to a prime mover;
first conveyor means located beneath the screening box and extending from within the apparatus to the front of the apparatus to convey screened material from within the apparatus to the front thereof, wherein said first conveyor means conveys said screened material from within the apparatus to beyond and above the coupling means; and
means for directing screened material from the screening box to the conveyor means.
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Accused Products
Abstract
A mobile material screening apparatus includes a sloped screen box, a housing, a fifth wheel coupling, an engine and a pair of wheels fixed to the housing. Two hydraulic rams lift the apparatus and wheels off the ground and four extendable legs support it off the ground. A conveyor located underneath the screen box delivers fully screened material up over the fifth wheel coupling. A second conveyor located at the side of the apparatus removes second grade screened material. A third conveyor removes reject material which comes down a chute.
41 Citations
13 Claims
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1. A mobile material screening apparatus comprising
a sloped screening box mounted on an upper part of the apparatus on which material to be screened may be deposited, the screening box being sloped from a high side of the apparatus to a low side and having an open side at the low side of the apparatus so that reject material may pass over the screening box; -
wheels located at a rear part of the apparatus to enable the apparatus to be moved; means for raising the wheels from ground contact; coupling means located at a front part of the apparatus to enable the apparatus to be coupled to a prime mover; first conveyor means located beneath the screening box and extending from within the apparatus to the front of the apparatus to convey screened material from within the apparatus to the front thereof, wherein said first conveyor means conveys said screened material from within the apparatus to beyond and above the coupling means; and means for directing screened material from the screening box to the conveyor means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile material screening apparatus comprising
a sloped screening box mounted on an upper part of the apparatus on which material to be screened may be deposited, the screening box being sloped from a high side of the apparatus to a low side and having an open side at the low side of the apparatus so that reject material may pass over the screening box; -
wheels located at a rear part of the apparatus to enable the apparatus to be moved; means for raising the wheels from ground contact; coupling means located at a front part of the apparatus to enable the apparatus to be coupled to a prime mover; first conveyor means located beneath the screening box and extending from within the apparatus through one end of the apparatus to convey screened material from within the apparatus to outside the apparatus and beyond the coupling means; and means for directing screened material from the screening box to the conveyor means.
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Specification