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:
Apr. 30, 1991

Filed:

Apr. 02, 1990
Applicant:
Inventors:

John Cosman, Bolton, CA;

Victor Silaghi, Willowdale, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
425190 ; 366266 ; 366318 ; 425542 ; 4253761 ;
Abstract

An injection molding machine comprising a drive unit and a plasticizing unit and includes a quick disconnect coupling mechanism for connecting the feed screw of the plasticizing unit to and disconnecting it from the quill of the driving unit.


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