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:
Feb. 20, 2007
Filed:
May. 12, 2004
Applicants:
Gordon Frederick Smith, Warwick, CV34 6QA, GB;
David George Head, Caversham Heights, Reading, RG4 7ED, GB;
Helmut Echardt, D-58527 Meinerzhagen, DE;
Inventors:
Gordon Frederick Smith, Warwick, CV34 6QA, GB;
David George Head, Caversham Heights, Reading, RG4 7ED, GB;
Helmut Echardt, D-58527 Meinerzhagen, DE;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas venting needle for use in gas injection moulding the open end having a flow valve with no moving parts; the flow valve being provided by a plurality of individual flow channels sized such that in use gas may freely flow through these channels but liquid moulding material may not freely flow through.