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:
Dec. 26, 1989
Filed:
Apr. 13, 1989
Applicant:
Inventors:
Albert J Trahan, Vernon, CT (US);
Robert J Douglas, North Granby, CT (US);
Assignee:
Emhart Industries, Inc., Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65314 ; 65318 ;
Abstract
An individual section of a glass forming machine has a cylinder for controlling the displacement of the plunger. The piston is tandem in nature so that pressure can be selectively reduced for the final portion of plunger advance and the inner diameter of the cylinder guides plunger advancement at all pressures.