Electric lamp and discharge devices: systems – Plural series connected load devices – Christmas lights
Patent
1998-05-08
1999-11-30
Wong, Don
Electric lamp and discharge devices: systems
Plural series connected load devices
Christmas lights
315 56, 315185R, 315323, 363146, H05B 3703
Patent
active
059948450
ABSTRACT:
A light socket is disclosed that has a built-in integrated circuit for rectifying the alternating current received from an electrical outlet and limiting the direct current produced. The light socket is specifically suited for low-current, low-voltage applications such as supplying DC to a string of ornamental lights. The integrated circuit has a diode with a modified cathode that acts as a fuse as it is rectifying the alternating current. The cathode is formed of a plurality of electrically parallel conductors. Excessive current blows out at least some of these conductors in the same way a conventional fuse blows. Various embodiments add other current-limiting elements, elements for producing full wave or near full wave rectification, and for opening the circuit when they detect extraneous currents.
REFERENCES:
patent: D330179 (1992-10-01), Rihm
patent: D341331 (1993-11-01), Richards, Jr.
patent: 3789211 (1974-01-01), Bridges
patent: 3953782 (1976-04-01), Means
patent: 3968398 (1976-07-01), Lehmann et al.
patent: 4075614 (1978-02-01), White
patent: 4080039 (1978-03-01), Ahroni
patent: 4211955 (1980-07-01), Ray
patent: 4223248 (1980-09-01), Tong
patent: 4227228 (1980-10-01), Cheng
patent: 4350407 (1982-09-01), Tong
patent: 4418978 (1983-12-01), Shamir
patent: 4425605 (1984-01-01), Cheng
patent: 4592613 (1986-06-01), Tong
patent: 4623878 (1986-11-01), Schoenwetter
patent: 4675575 (1987-06-01), Smith et al.
patent: 4682079 (1987-07-01), Sanders et al.
patent: 4688135 (1987-08-01), Leopold
patent: 4799898 (1989-01-01), Schick
patent: 4997393 (1991-03-01), Armando
patent: 5111058 (1992-05-01), Martin
patent: 5111113 (1992-05-01), Chu
patent: 5139443 (1992-08-01), Armando
patent: 5160879 (1992-11-01), Tortola et al.
patent: 5320563 (1994-06-01), Liao
patent: 5345147 (1994-09-01), Wu
patent: 5384559 (1995-01-01), Shamir
patent: 5396221 (1995-03-01), Kramer
patent: 5419719 (1995-05-01), Chandler
patent: 5495147 (1996-02-01), Lanzisera
patent: 5581449 (1996-12-01), Sridharan
patent: 5670847 (1997-09-01), Lin
Mann Michael A.
Ventur Research & Development Inc.
Vo Tuyet
Wong Don
LandOfFree
Electrical light socket does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical light socket, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical light socket will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1676858