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:
Aug. 15, 1978
Filed:
Dec. 20, 1976
Ronald J LaSpisa, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
In an extrusion system wherein a single source of molten extrudable material is utilized to provide feed to a plurality of extrusion lines, the rate of flow of extrudable material from the source thereof to the plurality of extrusion lines is controlled to provide a preselected total product output rate. The position of a flow control valve means associated with each extrusion line is controlled to maintain a preselected material supply pressure upstream of said plurality of extrusion lines and to provide a preselected relationship among the measured production rates of said plurality of extrusion lines. In a preferred embodiment, an extrusion system having two extrusion lines supplied by a single source of molten extrudable material is controlled to provide a preselected total production rate, a preselected molten material source pressure, and a preselected balance between the extrusion rates of the two extrusion lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile