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. 05, 2014
Filed:
Oct. 24, 2012
Applicant:
Ralph Peter Hegler, Bad Kissingen, DE;
Inventor:
Ralph Peter Hegler, Bad Kissingen, DE;
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 47/90 (2006.01); B29C 47/08 (2006.01); B29C 47/92 (2006.01); B29C 47/12 (2006.01); B29C 49/00 (2006.01); B29C 47/70 (2006.01); B29C 47/00 (2006.01); B29C 47/06 (2006.01); B29C 47/56 (2006.01); B29L 23/18 (2006.01); B29L 16/00 (2006.01);
U.S. Cl.
CPC ...
B29C 47/126 (2013.01); B29C 49/0021 (2013.01); B29C 47/70 (2013.01); B29C 47/0023 (2013.01); B29C 47/065 (2013.01); B29C 47/0811 (2013.01); B29C 47/005 (2013.01); B29C 47/0033 (2013.01); B29C 47/92 (2013.01); B29C 47/56 (2013.01); B29L 2023/18 (2013.01); B29L 2016/00 (2013.01); B29C 47/902 (2013.01);
Abstract
An apparatus for the continuous production of a twin wall pipe has mold block halves supplied in pairs to form a mold, and a pipe head, which has an external nozzle for the extrusion of an external hose and an internal nozzle for the extrusion of an internal hose. A support air and venting channel which is annular-cylindrical and concentric with respect to the center longitudinal axis of the pipe head opens out between the external nozzle and internal nozzle.