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:
Apr. 02, 1985
Filed:
Mar. 30, 1983
Applicant:
Inventors:
Henry H Kolm, Wayland, MA (US);
Eric A Kolm, Brookline, MA (US);
Assignee:
Piezo Electric Products, Inc., Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
3152 / ; 315 71 ; 315205 ; 315309 ; 338219 ;
Abstract
A heat-sensitive variable-resistance insert device for use with a light bulb and socket including: a thin, heat-sensitive variable-resistance wafer and a perimetrical insulation member surrounding the edge of the wafer and electrically insulating it from the wall of the socket. The wafer has a contact area on one side for engaging the central contact of the socket and on the other side thereof for engaging the central contact of the light bulb, and an adhesive paste on that other side within the perimetrical member for adhering the device to the base of a light bulb.