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:
Apr. 23, 1985

Filed:

Jan. 10, 1983
Applicant:
Inventors:

William M Labadini, Salisbury, MA (US);

John A Scholz, Danvers, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ; H05B / ;
U.S. Cl.
CPC ...
315290 ; 315D / ; 315101 ; 315289 ;
Abstract

Apparatus for starting and operating a high intensity discharge lamp includes a pair of terminals connectible to an AC service voltage source and coupled by a ballast to an HID lamp with a series connected gated switch and a non-linear dielectric element shunting the HID lamp, a series connected resistor and capacitor shunting the HID lamp and a bidirectional switch coupling the junction of the resistor and capacitor to the gate electrode of the gated switch whereby a delayed pulse of increased magnitude is applied to an HID lamp.


Find Patent Forward Citations

Labadini, William. (1985). High intensity discharge (hid) lamp starting apparatus (U.S. Patent No. 4513227). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4513227

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

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