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.

Date of Patent:
Dec. 17, 2002

Filed:

Apr. 06, 2001
Applicant:
Inventors:

Stefan Eppich, Arbing, AT;

Alfred Ellinger, Perg, AT;

Johannes Frechinger, Katsdorf, AT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/577 ;
U.S. Cl.
CPC ...
B29C 4/577 ;
Abstract

An injection moulding machine with a screw ( ) for metering plastics, which is mounted in a rotatable manner in a clamping plate ( ), which is longitudinally displaceable by way of at least two electrically driven spindles ( ), whereby the pressure exerted by the plastics upon the screw ( ) is determined by means of at least one sensor ( ) which measures the deformation of a connecting ring arranged between a stationary sleeve ( ) surrounding the pivot bearing ( ) of the screw ( ) and the clamping plate ( ); the connecting ring is configured as an annular disc ( ), the inner edge ( ) of which is connected to the sleeve ( ) and the outer edge ( ) of which is connected to the clamping plate ( ).


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