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:
Mar. 31, 2015
Filed:
Oct. 28, 2012
Changming Jiang, Chengdu, CN;
Yong Feng, Chengdu, CN;
Sugang Jiang, Chengdu, CN;
Chih-chang Chen, Cupertino, CA (US);
Liji Huang, San Jose, CA (US);
Changming Jiang, Chengdu, CN;
Yong Feng, Chengdu, CN;
Sugang Jiang, Chengdu, CN;
Chih-Chang Chen, Cupertino, CA (US);
Liji Huang, San Jose, CA (US);
M-tech Instrument Corporation (Holding) Limited, Hong Kong, HK;
Abstract
An all-electronic utility gas meter using with micromachined (a.k.a. MEMS Micro Electro Mechanical Systems) silicon sensor to measure gas metrology data for custody transfer or tariff in city gas metering application is disclosed in the present invention. The meter has two separate metrology units. One of the units is located in the main flow channel with the insertion probing configuration while the other is configured as a bypass unit assembly with the main metrology unit. The bypass metrology unit can perform independent metrology tasks and can be exchanged onsite during service, maintenance or repair without dismantle the meter from the service pipeline. The bypass metrology unit also can be used to compare the measured data from time to time and performance self-diagnosis that shall help the performance and data authentication during the meter field service. Both of the units can be powered by battery or external sources. The units can be connected to network as well as provide internal plural storages for data transmission and safety.