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US 6,953,121 B2Granted
Vibrating screen
AssigneeJohnson Crushers International
InventorsLawrence Calvin Olsen, Benjamin James Boyce
Life of this patent
Estimating the term…
Abstract
A vibrating screen assembly supported by springs is provided which is used to size separate rock and other material. The present invention includes increasing the natural frequency of the screen assembly by stiffening the individual screen decks of the screen assembly, to enable the screen assembly to operate at higher operating speeds without prematurely failing.
Claims26
A vibrating screen assembly comprising:
- opposable side walls;
- at least one screen deck rigidly disposed within the opposable side walls, the screen deck adapted for size sorting material, the screen deck further comprising
- opposable end members;
- opposable side members, the end members and the side members being arranged to form a frame;
- a plurality of cross members extending between the side members;
- a plurality of stringers extending between the end members;
- and
- at least three cross braces disposed within the frame, wherein each cross brace generally forms a X-shape and spans a majority of the distance between the opposable side members.
5 more elements
A screen deck for size sorting material comprising:
- opposable end members;
- opposable side members, the end members and the side members being arranged to form a frame;
- a plurality of cross members extending between the side members;
- a plurality of stringers extending between the end members;
- at least three cross braces disposed within the frame, wherein each cross brace generally forms an X-shape and spans a majority of the distance between the opposable side members;
- and
- a screening material secured to one side of the screen deck adapted to sort material by size.
4 more elements
A vibrating screen assembly comprising:
- opposable side walls;
- at least one screen deck rigidly disposed within the opposable side walls, the screen deck adapted for size sorting material, the screen deck further comprising
- opposable end members;
- opposable side members, the end members and the side members being arranged to form a frame;
- a plurality of cross members extending between the side members;
- a plurality of stringers extending between the end members;
- and
- at least three cross braces extending between two or more cross members, wherein each cross brace generally forms an X-shape and spans a majority of the distance between the opposable side members.
5 more elements
A screen deck for size sorting material comprising:
- opposable end members;
- opposable side members, the end members and the side members being arranged to form a frame;
- a plurality of cross members extending between the side members;
- a plurality of stringers extending between the end members;
- and
- at least three cross braces extending between the one or more cross members, wherein each cross brace generally forms an X-shape and spans a majority of the distance between the opposable side members;
- and
- a screening material secured to one side of the screen deck adapted to sort material by size.
5 more elements
A vibrating screen assembly comprising:
- opposable side walls;
- at least one screen deck rigidly disposed within the opposable side walls, the screen deck adapted for size sorting material, the screen deck further comprising
- opposable end members;
- opposable side members, the end members and the side members being arranged to form a frame;
- a plurality of cross members extending between the side members, wherein the plurality of cross members are crowned fabricated I-beams;
- a plurality of stringers extending between the end members;
- and
- at least three cross braces diagonally disposed within the frame.
5 more elements
A screen deck for size sorting material comprising:
- opposable end members;
- opposable side members, the end members and the side members being arranged to form a frame;
- a plurality of cross members extending between the side members, wherein the cross members are crowned fabricated I-beams;
- a plurality of stringers extending between the end members;
- at least three cross braces diagonally disposed within the frame;
- and
- a screening material secured to one side of the screen deck adapted to sort material by size.
4 more elements
Dependencies are inferred from the claim text.