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:
Jul. 02, 2002
Filed:
Apr. 14, 1999
Applicant:
Inventors:
Assignee:
Battenfeld GmbH, Meinerzhagen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 4/502 ;
U.S. Cl.
CPC ...
B29C 4/502 ;
Abstract
An apparatus to actuate an injection element ( ) for injecting a defined quantity of plasticized plastic or the like into an injection molding tool. The injection element ( ) is designed as a piston or as a screw and is guided in a guide ( ) and moved by an actuation element. The actuation element ( ) has a tappet ( ), which is guided on a crank plate ( ), the crank plate ( ) being turned with positional accuracy by a controlled or regulated servomotor ( ). The invention provides that, for the return stroke of the injection element ( ), a second tappet ( ) is present, which is actuated by a second crank plate ( ).