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:
Jul. 07, 1998
Filed:
May. 24, 1995
Applicant:
Inventor:
Paul J Kovacik, Ford City, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ; B65B / ; B67C / ;
U.S. Cl.
CPC ...
141383 ; 141-4 ; 141 59 ; 141 66 ;
Abstract
An injector for moving an insulating gas into the sealed air space of a multi-sheet insulating unit includes a tube e.g. inner tube mounted within an outer tube and spaced from the inner walls of the outer tube to provide an exhaust passage. The outer tube is mounted on the middle leg by a C-clamp. Insulating air is moved through the inner tube into the sealed air space to displace the gas therein which displaced gas moves through the exhaust passageway.