FLASHING JEWEL PENDANT

• US 3,805,047 A
• Filed: 07/06/1972
• Issued: 04/16/1974
• Est. Priority Date: 07/06/1972
• Status: Expired due to Term

• Current Assignee: Robert J. Dockstader
• Original Assignee: Robert J. Dockstader
• Inventors: Dockstader, Robert J.
• Primary Examiner(s): Moses, Richard L.
• Application Number:
  US05/269,507
• Time in Patent Office: 649 Days
• Field of Search: 240/6.4W,6.4R,2R,10.6
• US Class Current: 362/104
• CPC Class Codes: A44C 15/0015 Illuminated or sound-producing jewellery
• 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

Abstract

This pendant includes a printed circuit board housed between front and back casing sections. The front, generally cup-shaped section is made of light-transmissive material, and has its open end releasably secured in an annular skirt that surrounds the opaque back section of the casing. The circuit board is discshaped, and has on one side a plane surface confronting the front casing section, and on its opposite side a plurality of circuit components which face the back casing section. One of these components is a manually operable switch having a slidable operating button that projects through a slot in the back casing section. Two hearing aid-type batteries are releasably mounted in openings in the circuit board and cause a light, which projects into a central opening in the board, to flash on and off when the switch is closed.

Claims

1. An article of jewelry, comprising a casing having a back section, and a translucent front section removably secured to the back section to form therebetween a chamber, a printed circuit board enclosed within said chamber and having therethrough a plurality of openings, a light bulb mounted in one of said openings to illuminate said front section when energized, a battery removably mounted in another of said openings and in use fixedly secured therein and enclosed completely within said chamber, a manually-operable switch mounted in one of said sections and projecting through an opening therein to be operated from tHe exterior of said casing, a resistor and a capacitor mounted within said casing in series circuit with said battery and with said bulb, thereby to charge said capacitor when said switch is closed, a solid state switch mounted within said casing in parallel with said capacitor between said resistor and said manually-operable switch and said bulb, and triggering means connecting said capacitor with said solid state switch for intermittently conducting a charge from said capacitor to said solid state switch when the charge on said capacitor reaches a predetermined value thereby to switch said solid state switch to its conductive state, thereby intermittently to energize said bulb and discharge said capacitor as long as said manually-operable switch is closed and said battery contains the required charge.

2. An article of jewelry as claimed in claim 1, wherein said solid state switch is a transistor, and said triggering means is a second transistor connected in series with said solid state switch.