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:
May. 04, 1982
Filed:
Feb. 06, 1980
Applicant:
Inventors:
Ralph C Muller, Hopewell Junction, NY (US);
Thomas R Decker, Wallkill, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137587 ; 137433 ;
Abstract
A combination of elements for use with an underground tank that has a fill tube which is below ground level and subject to rainwater immersion. It has special application to a fill tube closure that has a small diameter passageway to maintain atmospheric pressure in the fill tube. It includes a float valve to close the passageway if the rainwater rises above a given level adjacent to the top of the fill tube.