The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2018
Filed:
Jan. 10, 2012
George Alexander Burnett, Aberdeen, GB;
George Alexander Burnett, Aberdeen, GB;
National Oilwell Varco, L.P., Houston, TX (US);
Abstract
A screen assembly for a shale shaker, the screen assembly including a support structure and at least one layer of screening material thereon. The support structure includes structural members having a thermal expansion coefficient and the at least one layer of screening material has a thermal expansion coefficient. The thermal expansion coefficient of the structural members is substantially equal to the thermal expansion coefficient of the at least one layer of screening material. A method for making a support structure for a screen assembly is also provided. The method includes placing at least one support member in a mold whereupon a flowable plastics material is injected into the mold, whereupon the flowable plastics material hardens, at least a portion of the flowable plastics material forming a brace.