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:
Mar. 30, 1976
Filed:
Dec. 07, 1973
Applicant:
Inventor:
Robert Albert Melcher, Wenden, DT;
Assignee:
Siemag Siegener Maschinenbau GmbH, Hilchenbach-Dahlbruch, DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
425130 ; 4252 / ; 425248 ; 4258 / ; 425D / ; 2221445 ; 222525 ;
Abstract
Injection molding apparatus for discontinuous fabrication of molded bodies consisting of a plurality of layers with a foaming core and an outer skin of non-foaming thermoplastic material, the apparatus consisting of an injection head connected to two extruders and equipped with a centrally-located jet surrounded by a ring jet.
Melcher, Robert. (1976). Apparatus for injection molding of bodies with a core and skin of (U.S. Patent No. 3947175). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3947175
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile