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:
Jan. 20, 2004
Filed:
Mar. 07, 2002
Applicant:
Inventor:
Peter Pokorny, Schwertberg, AT;
Assignee:
Engel Maschinenbau Gesellschaft m.b.H., Schwertberg, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/553 ; B29C 4/576 ;
U.S. Cl.
CPC ...
B29C 4/553 ; B29C 4/576 ;
Abstract
Injection moulding method in which plastic material contained under pressure in an antechamber is injected into a mould cavity and fills said mould cavity under pressure, by expansion of the plastic material. After closing of the entrance to the antechamber the position of the piston and the pressure in the antechamber are monitored, and the final position of the piston is determined by a calculation which takes account of at least one value of the measured pressure and of the position of the piston at which said pressure was measured.