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. 02, 2008
Filed:
Dec. 30, 2006
Feng Zhang, Ninghai, CN;
Feng Zhang, Ninghai, CN;
Ningbo Wanan Co., Ltd., Zhejiang, CH;
Abstract
The invention relates to a manual gas valve for use with either LP gas or natural gas operation with the purpose of solving the technical dilemma that the existing gas valve cannot be converted conveniently for use with different gases having different heating values. The manual gas valve of the present invention comprises a nozzle, a 8×1.9 O-shaped ring, a nozzle holder, a valve body, a faucet, a regulating lever, a 1.78×1.78 O-shaped ring, a spring, a stop plate, a pair of bolts, a mounting cover, and a valve stem. By utilizing the manual gas valve of the present invention, LP gas and natural gas can be used interchangeably and the gas flow can be conveniently regulated to achieve a similar heating value with either LP gas or natural gas operation. In addition, the conversion is easy and convenient, without requiring the use of any special tools or relying on any additional testing apparatus. No special skill or training is needed so that it is particularly suitable for self regulating operation by customers. Moreover, the manual gas valve is safe and reliable.