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:
Nov. 02, 1976
Filed:
May. 23, 1975
Applicant:
Inventor:
Hugh B Matthews, Acton, MA (US);
Assignee:
Sperry Rand Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03G / ;
U.S. Cl.
CPC ...
60641 ; 417367 ; 340 / ; 340 / ;
Abstract
The operation of a geothermal well power-generation system is monitored by sensor, communication, and performance monitoring equipment permanently associated with the operating power generation system. Sensors detect changes in well water temperature, in water pressure below and above the pump, and in pump rotating speed. This data is transmitted by multiplex communication to receiver and utilization means at the earth's surface. A novel permanent magnet generator system supplies the signal representative of pump rotation speed and also supplies electrical power for the multiplex communication of the sensor output signals.