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:
Feb. 01, 1983
Filed:
Mar. 27, 1981
Neal Zarrelli, New York, NY (US);
Joseph V Bocassi, Garnerville, NY (US);
Robert S Miller, Garnerville, NY (US);
Other;
Abstract
A propane gas feed device and system are provided wherein controlled, measured quantities of propane gas are controllably pre-mixed with air and this pre-mixture of air-propane is fed as a carburetor mixture for combustion in the engine. An air cut-off screen is controllably operated to adjust the air-fuel ratio relative to a changeover in the propane and gasoline demands. The propane feed system may be retro-fitted to an automobile employing conventional propane feed and provides for more efficient use of the propane with reduced unburned fraction in the engine exhaust. The propane air-feed device is also useful as wherein propane is the sole fuel.