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:
Feb. 28, 1989
Filed:
Dec. 09, 1987
Glenn T Darilek, San Antonio, TX (US);
Southwest Research Institute, San Antonio, TX (US);
Gas Research Institute, Chicago, IL (US);
Abstract
A compact, low electrical noise power supply for fluorescent lights used in conjunction with a borehole television system. The outputs of first and second power sources are combined to initiate operation of the fluorescent light. After the operation of the light has been initiated, the second power source is disabled and the light is maintained in operation by the first source of electric power. In the preferred embodiment, the first source of electric power is a source of high voltage DC current and the second source of electric power is a high frequency oscillator. A transformer is provided to combine the outputs of the two sources of electric power. The operation of the oscillator is controlled by a momentary start switch which disables the oscillator after the light has been activated.