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:
Apr. 12, 1988
Filed:
Apr. 27, 1987
Applicant:
Inventor:
Darryl R Whitford, Angaston, AU;
Assignee:
S. Smith & Son Pty. Ltd., Angaston, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220209 ;
Abstract
A tank lid having flexible polymeric material forming an annular torus surrounding a discoid portion, pins retaining the torus seated on the upper edge of the tank. A proximity sensor which senses bulging of the discoid portion, the proximity sensor actuating a valve which will stop entry of gas such as nitrogen upon the disclosed portion bulging upwardly but allow entry of the gas when it deflects downwardly.
Whitford, Darryl. (1988). Tank lid (U.S. Patent No. 4736864). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4736864
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile