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:
May. 11, 1982
Filed:
Dec. 15, 1980
Nikolaos Barakitis, Haverhill, MA (US);
Sheppard Cohen, Danvers, MA (US);
GTE Products Corporation, Stamford, CT (US);
Abstract
A glow bottle starter having three lead-in wires and containing two bimetals connected together at one end and a rigid tungsten rod. The bimetals make normally closed contact with the tungsten rod in the quiescent state of the starter, and upon electrical current flow through one or both of the bimetals to cause elevation to a predetermined temperature, the bimetals are operative to separate from the tungsten rod. In a circuit including the glow-bottle starter for starting a discharge lamp, one of the bimetals and the rigid tungsten rod are connected across the output of a ballast circuit, and the tungsten rod and other bimetal are connected across the lamp. Upon initial energization of the ballast, short circuit current through the bimetal connected thereto is operative to separate the bimetals from the tungsten rod to provide an open starter circuit and a switching transient across the lamp; upon starting of the lamp, the resulting current flow through both bimetals maintains the bimetals separated from the rod.