Fluid handling – Control by change of position or inertia of system – With second control
Reexamination Certificate
2005-10-11
2005-10-11
Hepperle, Stephen M. (Department: 3753)
Fluid handling
Control by change of position or inertia of system
With second control
C073S263000, C137S315010
Reexamination Certificate
active
06953046
ABSTRACT:
A microprocessor-based gas meter has fully electronic control, safety cutoff and data communication functions, while remains the same size of a conventional gas meter. The control circuit board in the microprocessor-based gas meter is mounted inside the main body of the gas meter through a mounting slot. The sensors, wires and battery are located in the rest space of the chamber so as to utilize the space of the chamber. When an abnormal situation is detected, the control circuit activates a cutoff valve and shuts off the gas intake. The data communication function is to transfer gas-metering data through telephone lines to the gas company so that the mistakes and cost of manual checking and recording can be eliminated.
REFERENCES:
patent: 4565090 (1986-01-01), Gotanda
patent: 5048552 (1991-09-01), Bourne
patent: 5960807 (1999-10-01), Reyman
patent: 6269829 (2001-08-01), Chen et al.
patent: 2000-9511 (2000-01-01), None
patent: 2000-65620 (2000-03-01), None
Chen Shiang-Fu
Chou Wen-Yang
Hung Chi-Fu
Kuo Shih-Chi
Lee Tzong-Sheng
Birch & Stewart Kolasch & Birch, LLP
Hepperle Stephen M.
Industrial Technology Research Institute
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