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:
Jul. 03, 1984

Filed:

Mar. 26, 1982
Applicant:
Inventors:

Richard C Bainbridge, Erie, PA (US);

Richard G Confer, Erie, PA (US);

Carl C Krihwan, Erie, PA (US);

William R Miller, Erie, PA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315 88 ; 315 65 ; 315291 ; 315313 ; 362804 ;
Abstract

A controller for controlling operation of a multi-filament lamp is provided that permits selection of the filament to be energized from a control box placed at a remote location from the lamp. Only two leads are required to electrically connect the control box to the lamp. The controller automatically switches energizing power from a burned out filament to an alternate filament. The controller can also include a source of alternate power for the controller in the event that primary power is lost. The controller can also include a lock out feature which prevents switching energizing power at the control box from an energized filament to a failed filament.


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