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. 01, 1998
Filed:
May. 16, 1997
Emerson G Todd, III, Hurlock, MD (US);
George D Baker, Cambridge, MD (US);
James F Kampmeyer, Salisbury, MD (US);
Air Liquide America Corporation, Houston, TX (US);
Abstract
Compressed gas cylinder valve removal tools and a kit are disclosed. A body portion of the tools mate with a corresponding portion on a compressed gas cylinder valve assembly. A stem portion of the tools is advanced through the body portion and into the valve assembly of the compressed gas cylinder. A punch portion of the stem impinges against the valve of the valve assembly and punches out the valve into the compressed gas cylinder. A gas vent path is provided through the valve removal tool to allow residual gas within the compressed gas cylinder to escape through the tool to atmosphere while the valve is being punched out. In an alternative embodiment, the valve removal tool includes portions which mate with corresponding portions on a compressed gas cylinder valve, to unscrew the valve from the valve assembly. Once punched out or unscrewed, the valve will drop harmlessly into the compressed gas cylinder, ensuring that the compressed gas cylinder is fully vented to atmosphere and does not contain any residual gas therein.