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. 14, 1976
Filed:
Nov. 17, 1975
Erwin W Parr, Des Moines, IA (US);
Timothy B Brandt, Des Moines, IA (US);
Parr Manufacturing Inc., Des Moines, IA (US);
Abstract
A valve of a type used for preventing fuel line leaks which occur when automobiles or trucks roll over. The valve is used in conjunction with a vehicle fuel system, preferably in a vapor vent line which vents fuel vapors from the fuel tank, so that if the vehicle rolls over or tilts in one direction by more than a predetermined amount, the valve will close. A ball disposed in a conical recess within the valve body serves as a gravity actuator for a reciprocating valve member. A novel structure of a valve member of a particular configuration in combination with the novel configuration of the interior of the valve housing allows the valve member to be self-cleaning due to vibrations caused by vehicular travel; and yet, the valve provides a positive sealing function upon tipping or tilting thereof by a predetermined amount or more.