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:
Nov. 22, 1994
Filed:
Nov. 05, 1993
Applicant:
Inventor:
Philip A Mann, Pontefract, GB;
Assignee:
Emhart Glass Machinery Investments Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 251 ; 65362 ; 65 68 ; 651822 ; 65319 ;
Abstract
A plunger assembly for a glassware forming machine for use in forming parisons comprises a metal plunger with a small chamber at the nose portion of the plunger into which water is supplied when the plunger is in use, the water passing out through a pattern of small holes in the nose portion to provide a vapour barrier between the plunger and the hot glass. The plunger has an internal recess and is cooled by air supplied into the recess.