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.

Date of Patent:
Jun. 16, 1981

Filed:

Oct. 15, 1979
Applicant:
Inventor:

Charles W Conklin, Huntington Beach, CA (US);

Assignee:

C&D Enterprises, Huntington Beach, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ; H05B / ;
U.S. Cl.
CPC ...
315240 ; 3152 / ; 3152 / ; 315307 ; 3152 / ; 123653 ; 307246 ; 307264 ; 3072 / ;
Abstract

A glow plug driver adapted to be coupled to a power supply and a glow plug comprising first and second conductive leads for coupling the glow plug to the power supply and an electronic switch in the first lead having conductive and nonconductive states so that pulses of electrical energy can be supplied to the glow plug. A resistor and a capacitor are coupled between the leads in parallel with the glow plug so that the capacitor can charge when the electronic switch is in the conductive state and discharge when the electronic switch is in the nonconductive state. A timer is used to place the electronic switch in the conductive state for a predetermined amount of time. The timer is in turn controlled by a transistor having its base coupled to a junction between the resistor and the capacitor.


Find Patent Forward Citations

Conklin, Charles. (1981). Glow plug driver (U.S. Patent No. 4274034). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4274034

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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