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:
May. 15, 1984
Filed:
Dec. 30, 1982
Applicant:
Inventor:
David E Johnson, Canandaigua, NY (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29C / ; B29H / ;
U.S. Cl.
CPC ...
264 53 ; 264 37 ; 264140 ; 264151 ; 264321 ; 264D / ; 264D / ; 425202 ; 425205 ; 425289 ; 4258 / ;
Abstract
A system and a method for the production of thermoformable plastic foam material from a mix of plastic foam selvage and a foamable virgin plastic resin. Accordingly, the present invention provides for a selvage formed during the production of thermoformed foam material articles from a plastic foam sheet stock is recycled and admixed with the virgin foamable plastic resin, in that the material components are admixed in a feed hopper and then conducted from the feed hopper into a twin-screw compressor which will impart a positive forward feed to the compressible plastic materials conveyed therethrough.