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. 10, 2020
Filed:
Oct. 06, 2016
Applicant:
Ralph Peter Hegler, Bad Kissingen, DE;
Inventor:
Ralph Peter Hegler, Bad Kissingen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 45/16 (2006.01); B29C 48/30 (2019.01); B29C 48/18 (2019.01); B29C 48/13 (2019.01); B29C 48/325 (2019.01); B29C 48/09 (2019.01); B29C 49/00 (2006.01); B29C 53/30 (2006.01); B29C 45/72 (2006.01); B29C 45/20 (2006.01); B29C 48/92 (2019.01); B29C 48/335 (2019.01); B29L 9/00 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 45/1603 (2013.01); B29C 45/20 (2013.01); B29C 45/7207 (2013.01); B29C 48/09 (2019.02); B29C 48/13 (2019.02); B29C 48/18 (2019.02); B29C 48/302 (2019.02); B29C 48/303 (2019.02); B29C 48/325 (2019.02); B29C 49/0021 (2013.01); B29C 53/30 (2013.01); B29C 48/30 (2019.02); B29C 48/336 (2019.02); B29C 48/92 (2019.02); B29C 2948/92647 (2019.02); B29L 2009/00 (2013.01); B29L 2023/22 (2013.01);
Abstract
An injection head for an apparatus for the production of twin-wall pipes has an external melt channel leading to an external nozzle and an internal melt channel leading to an internal nozzle. From the internal melt channel, a conically expanding internal nozzle channel leads to an internal nozzle outlet of the internal nozzle. In the region of the internal nozzle channel, an internal nozzle adjustment device is arranged by means of which the gap cross-section of the internal nozzle channel is displaceable and adjustable up to the internal nozzle outlet by radial displacement.