Rechargeable battery-operated illuminating device

• US 3,885,211 A
• Filed: 09/16/1974
• Issued: 05/20/1975
• Est. Priority Date: 09/16/1974
• Status: Expired due to Term

• Current Assignee: Astralite Inc.
• Original Assignee: Jeno B. Gutai
• Inventors: Gutai, Jeno B.
• Primary Examiner(s): Miller, J. D.
• Assistant Examiner(s): Hickey, Robert J.
• Application Number:
  US05/506,104
• Time in Patent Office: 246 Days
• Field of Search: 320/2 200/60,61.46 240/10.6,1.6CH 338/200,215 336/115,118
• US Class Current: 320/108
• CPC Class Codes: F21L 2/00 Systems of electric lighting devices systems employing both electric and non-electric light sources or exchangeable light sources F21L27/00
• CPC Class Codes: F21L 4/08 characterised by means for in situ recharging of the batteries or cells
• CPC Class Codes: Y10S 336/02 Separable

Abstract

This invention relates to a rechargeable battery device including an inductively coupled power source.

Claims

1. A rechargeable battery-operated device, comprising a tubular housing, a secondary electromagnetic coil including a metallic core, a first terminal and a second terminal connected to said coil, a coil spring positioned in said tubular housing adjacent to said secondary coil, an electrical connection between said spring and the first terminal, a first electrical conduit connected to said first terminal and to said spring and extending along the interior of said housing, a rectifier positioned adjacent to said secondary and connected to the said second terminal, a second electrical conduit connected to said rectifier and extending along the said housing, a third electrical conduit electrically connected to said second electrical conduit, a power takeoff comprising a first power takeoff terminal and a second power takeoff terminal, said takeoff including an insulating tubular member, a first plunger and a second plunger in said tubular member, a second coil spring in said tubular member positioned between said first and second plungers, said first plunger extending through one end of said insulating tubular member and the second plunger extending through the other end of said tubular member, an insulating cap mounted on the extending end of said second plunger, the first plunger constituting one terminal of a power takeoff, a coil rheostat mounted on the exterior of said last-named tubular member, one end of said rheostat coil extending through said last-named tubular member and electrically connected to said second plunger, a rheostat wheel rotatably mounted in said housing adjacent to said rheostat, an electrical contact on said wheel, said first conduit making electrical contact with said contact on said wheel, a rheostat wiper mounted on said wheel and making electrical contact with said contact on said wheel and said rheostat coil, said third electrical conduit electrically connected to said second electrical conduit and positioned adjacent to said cap, said second electrical conduit connected to a second power takeoff terminal.

2. In the device of claim 1, said power takeoff being a lamp socket, said second plunger centrally positioned in said socket, the said second conduit connected to the said socket.

3. In the device of claim 1, rechargeable battery positioned in said tubular housing, the base of the battery mounted on and making electrical contact with said coil spring, the other terminal of the battery positioned adjacent said cap and said other terminal making electrical contact with said third electrical conduit.

4. In the device of claim 3, said power takeoff being a lamp socket, said second plunger centrally positioned in said socket, the said second conduit connected to the said socket.

5. In combination with the device of claim 1, a tubular housing, a primary housing member, a primary electromagnetic coil mounted in the base of said primary housing member, said primary housing member being of size to receive the device of claim 1, with the secondary coil of said device mounted in inductive relation with said primary electrical coil.

6. In the device of claim 1, a tubular housing, a base for said housing, a primary housing member, a primary electromagnetic coil are mounted in the base of said housing, an air core for said coil, said primary housing member being of size to receive the device of claim 1, with the secondary coil of said device mounted in inductive relation with said primary.

7. In the device of claim 1, said primary housing member including a base member, the said primary coil wound on a spool to provide an air core, a cup-shaped metallic member, one end of said spool positioned on said cup-shaped member and an annular cup-shaped metallic member extending over the other end of said spool.