General purpose illuminator assembly

• US 5,058,900 A
• Filed: 10/31/1990
• Issued: 10/22/1991
• Est. Priority Date: 10/31/1990
• Status: Expired due to Fees

• Current Assignee: Mueller and Smith
• Original Assignee: Progenics Corporation
• Inventors: Denen, Dennis J.
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): HEYMAN, LEONARD
• Application Number:
  US07/606,119
• Time in Patent Office: 356 Days
• Field of Search: 200/60, 200/61.74, 200/61.76, 200/61.78, 200/276, 362/116, 362/118, 362/119, 362/120, 362/253, 362/205, 362/194, 362/195, 362/203, 362/800, 362/802, 273/416, 273/419, 273/420
• US Class Current: 473/570
• 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: F21V 33/008 Leisure, hobby or sport articles, e.g. toys, games or first-aid kits; Hand tools; Toolboxes
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F42B 12/362 Arrows or darts F42B12/38 takes precedence, having means for implantation, e.g. hypodermic projectiles F42B12/54; arrows or darts in general F42B6/00
• CPC Class Codes: Y10S 362/80 Light emitting diode
• CPC Class Codes: Y10S 362/802 Position or condition responsive switch

Abstract

An illuminator assembly is disclosed which is formed from a light emitting diode (LED) having two electrode pins extending therefrom which are cut to predetermined lengths. One lead then is formed to provide a circularly shaped spring support base and the other lead is bent to provide an attachment potion extending through the center of the opening formed by the spring support base. A capture spring of conical configuration then is attached to the centrally disposed lead which extends through the spring support base opening. A compressible coil switching spring then is attached to the spring support base. The assemblage thus formed is employed with a battery of a variety having a forward face which engages the free end of the switching spring and which includes a rod shaped electrode extending from the center portion thereof. Upon providing relative mutually approaching movement of a battery and illuminator assembly, the rod-like cathode is engaged by the capture spring and an electrical circuit is completed to illuminate the LED. Conversely, the releasing or reverse movement under the drive imparted by the switching spring switches the assemblage to an open circuit condition.

Claims

1. An illuminator assembly for use with a battery of given outer diameter and having a centrally disposed rod shaped electrode extending outwardly from the forward face thereof a predetermined length, comprising:

a light emitting diode having first and second metal electrode pins extending from a back surface thereof, said first pin extending rearwardly from said back surface to a base position and being configured thereat to define a spring support base disposed generally along a plane parallel with said back surface and having a base opening therein, said second electrode pin being configured to extend to and provide a mounting portion located at the center of said base opening;

a compressible coil switching spring of predetermined inner and outer diameter, having a base end fixed to said spring support base and extending outwardly therefrom to a switching end; and

a compressible coil capture spring of generally conical configuration having a constricted connecting end of first predetermined inner diameter connected to and extending from said diode second electrode pin mounting portion and extending within said switching spring to a wider capture end of second inner and outer diameter selected for receiving said battery rod shaped electrode.

2. The illuminator assembly of claim 1 in which said light emitting diode spring support base is circular, having an outside diameter corresponding with the said outer diameter of said switching spring.

3. The illuminator assembly of claim 1 in which said capture spring capture end is configured as a closed coil.

4. The illuminator assembly of claim 1 in which said switching spring has a spring rate selected between about 0.24 pounds per inch and 0.96 pounds per inch.

5. The illuminator assembly of claim 1 in which each said switching spring and said capture spring are symmetrically formed about a central axis and are mounted coaxially within said illuminator assembly.

6. The illuminator assembly of claim 1 in which said capture spring second outer diameter is less than said switching spring inner diameter by an amount effective to avoid shorting contact with said switching spring while capturing said battery electrode upon the compression of said switching spring.

7. The illuminator assembly of claim 1 in which said capture spring capture end second outer diameter is about 0.078 inch.

8. The illuminator assembly of claim 1 in which said switching spring is formed having a compliance of about 0.030 inch.

9. The illuminator assembly of claim 1 in which said capture spring connecting end and capture end are configured having closed coils.

10. The illuminator assembly of claim 1 in which said capture spring connecting end first predetermined inner diameter is about 0.025 inch.

11. The illuminator assembly of claim 1 in which:

said light emitting diode spring support base is circular, having an outside diameter corresponding with said outer diameter of said switching spring; and

said outer diameter of said switching spring corresponds with said battery given outer diameter.

12. An illuminated implement, comprising:

a body component having an internally disposed chamber extending along a given axis between an illuminating first end and oppositely disposed second end;

a battery having an electrode defining outer surface of given outer diameter and a centrally disposed rod shaped electrode extending outwardly from the forward face thereof, said battery having a rearward face and being located within said chamber in a manner wherein said electrode extends toward said illuminating first end and substantially along said axis;

a compressible coil switching spring located within said chamber, having a given inner diameter and an outer diameter selected for abuttable electrical engagement with said battery forward face and positioned over and in non-contacting relationship with said centrally disposed rod-shaped battery electrode and having a base end forming said chamber first end;

a light emitting diode located at said chamber illuminating first end, having first and second electrode pins extending from a back surface thereof, said first pin extending rearwardly from said back surface to a base position and being configured thereat to define a spring support base disposed along a plane generally parallel with said back surface and having a base opening therein, said base being in electrical contact with said switching spring base end, said second pin being configured to extend to said base opening and provide a mounting portion thereat substantially aligned with said axis;

a compressible coil capture spring of generally conical configuration having a connecting end electrically coupled and mounted to said second pin mounting portion and extensible in non-contacting relationship within said switching pin to a wider capture end of inner diameter selected for receiving said battery electrode in electrical contacting association; and

actuator means for selectively effecting the mechanical capture and electrical coupling of the end of said battery rod shaped electrode and said capture spring through relative movement between the diode and battery effecting the compression of said switching spring.

13. The implement of claim 12 in which said switching spring base end is fixed to said light emitting diode spring support base.

14. The implement of claim 12 in which said light emitting diode is a double heterojunction AlGaAs/GaAs device.

15. The implement of claim 12 in which:

said implement is a recreational dart; and

said body component is the body of said dart, said second end being configured to receive a dart point and said illuminating end being configured to removably receive a flight having a light transmissible portion.

16. The implement of claim 15 in which said body portion is formed of depleted uranium.

17. The implement of claim 15 in which said actuator means is comprised of said flight, said flight being threadably engageable with said body component first end in engaging abutment against said light emitting diode to compress said switching spring and move said diode and said capture spring along said axis to effect select engagement of said capture spring with said battery rod shaped electrode.

18. The implement of claim 15 in which:

said actuator means is comprised of said dart point, said dart point being threadably engageable with said body component second end in engaging abutment against said battery rearward face to compress said switching spring and move said battery and said switching spring along said axis to effect select engagement of said capture spring with said battery rod shaped electrode.