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:
Aug. 21, 1990
Filed:
Jul. 19, 1989
Applicant:
Inventors:
Dennis L Dundas, Dover, PA (US);
Eugene L Moore, York, PA (US);
Assignee:
Graham Engineering Corporation, York, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
425536 ; 264525 ; 264526 ;
Abstract
A blow molding machine having a mold cavity, a blow needle bore opening into the cavity with a blow needle in the bore, a vacuum source for drawing blow air from a molded article and an exhaust passage extending from the blow needle bore to the source for reducing pressure within the blown article.