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:
Aug. 21, 2018
Filed:
Oct. 13, 2016
Applicant:
Walbro Llc, Tucson, AZ (US);
Inventor:
Eric L. King, Caro, MI (US);
Assignee:
WALBRO LLC, Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 3/04 (2006.01); F02M 17/00 (2006.01); F02M 17/04 (2006.01);
U.S. Cl.
CPC ...
F02M 17/04 (2013.01); B01F 3/04 (2013.01);
Abstract
A carburetor with a fuel and air mixing passage and a fuel delivery system may include a valve actuated by a diaphragm with no penetrations through at least the portion of the diaphragm exposed to a fuel metering chamber. The diaphragm may include at least two convolutions increasing a surface area of the portion of the diaphragm exposed to the fuel metering chamber relative to the surface area of a plane exposed to and covering the fuel metering chamber. A diaphragm may be in the form of a bellows with at least two convolutions. The diaphragm may be made of a suitable polymer or one or more pieces of a thin metal sheet or foil.