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:
Apr. 04, 1978
Filed:
Mar. 28, 1977
Willard Emanuel Rapp, Franklin Township, Mercer County, NJ (US);
Western Electric Company, Inc., New York, NY (US);
Abstract
The disclosure concerns apparatus which automatically performs screen-changing functions associated with the use of screen devices for filtering extruded plastic materials. The apparatus includes a slide assembly with two apertured recesses for receiving screen devices, and mechanisms for aligning the recesses alternatingly with a direction of advance of the extruded plastic material. A screen device is replaced within one recess, as a screen device within the other recess filters the extruded plastic material. Such screen device replacement is provided through the automatic, sequential operations of screen device ejection, screen device carrier, screen device introducing and screen device reloading mechanisms.