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:
Mar. 10, 1987
Filed:
Jun. 18, 1984
Applicant:
Inventors:
Harold L Hough, Beverly, MA (US);
Robert P Bonazoli, Hamilton, MA (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315100 ; 315 75 ; 315119 ;
Abstract
A circular fluorescent lamp assembly having the entire ballasting circuit, along with a thermal protector, contained within the assembly's lamp holder. The thermal protector serves the dual function of preventing permanent damage to the assembly's ballast means and for extending lamp starting switch means operating life under normal end of lamp life cycling conditions. The thermal protector is responsive to the coil temperature of the ballast means and is electrically coupled in series with the ballast means, starting switch, capacitor and the lamp. One example of the thermal protector is a bimetal bottle switch.