Diode rectifier socketed electrical devices and diode rectifiers therefor

Abstract

Abstract This electrical device comprises an electrically operated article, such as a lamp, which has a base that fits into a socket. The electrical connection from the socket to the electrically operated article is made through a diode rectifier. The rectifier is a semi-conductor. The purpose of the rectifier is to change the voltage of the electrically operated article from A.C. to D.C. current with the top halves of the alternating waves cut off and at the same time to reduce the temperature and extend the life of the article. In case of a lamp, its life is lengthened because the filament will evaporate more slowly and retard darkening of the bulb, thereby reducing replacement costs. To get the same lumens as is normal for a lamp of a predetermined wattage and without the rectifier, the rectified lamp must be of a higher nominal wattage. The rectifier is a chip that comprises a semi-conductor between metal contacts or metalized contacts and with the edges of the semi-conductor protected by insulation material which integrates the parts of the rectifier into a unit. The rectifier is in the socket and between a terminal of the article and a terminal of the socket. Said unit is removable from at least one of them. The unit is in electrical contact with said terminals, and may be fixed either to the article terminal or to the socket terminal, but not to both. In any event, the unit is outside of the conductive systems of the electrically operated article and outside the conductive system of the socket, and serves to connect them in series circuit. In one form of the invention the rectifier unit is fixed to the central bottom contact of a lamp base or to a terminal of the lamp base. In another form of the invention, the rectifier unit is fixed to a pair of terminals of the lamp base connecting a pair of filaments in the lamp in parallel. In yet another form of the invention the unit is on an insulator flange centralized with respect to the socket and removable from the socket and lamp base, and may be dropped into the socket. In still another form of the invention, the rectifier unit is mounted on and fixed to a terminal of the socket, and the lamp base is removable from the socket and out of contact with said unit.

Inventors

• 👤 E Borneman
• 👤 J Galvagni

Bibliographic Details