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US 4,392,951 AGranted
Screen filter
AssigneeKao Soap Co., Ltd.
InventorsToshiyuki Omori, Kunihiro Abe
Life of this patent
Estimating the term…
Abstract
A screen filter comprising a plurality of rollers arranged in parallel, spaced relationship with a plurality of carriers positioned between the rollers with the axes of the carriers parallel to the axes of the rollers. An endless wire is wound spirally over the rollers and engages the surfaces of the carriers so as to form a screen. A driving means engages at least one of the rollers for driving the endless wire. The raw material to be screened is deposited onto the screen.
Claims12
A screen filter comprising:
- a plurality of rollers arranged in parallel, spaced relationship;
- carriers positioned between said rollers with the axes of said carriers parallel to the axes of said rollers;
- a wire extending past and wound spirally over said rollers and engaging the surfaces of said carriers;
- and
- driving means for engaging at least one of said rollers for driving said wire, including means for periodically alternating, in a predetermined time cycle, the direction of driving of said wire to effectively prevent clogging thereof.
2 more elements
Dependencies are inferred from the claim text.