Fluorescent bike lamp

• US 4,088,882 A
• Filed: 08/12/1975
• Issued: 05/09/1978
• Est. Priority Date: 08/12/1975
• Status: Expired due to Term

• Current Assignee: Donald J. Lewis
• Original Assignee: Donald J. Lewis
• Inventors: Lewis, Donald J.
• Primary Examiner(s): O'Connor, Edna M.
• Application Number:
  US05/604,036
• Time in Patent Office: 1,001 Days
• Field of Search: 240/7.55, 240/7.6, 240/51.11 R, 240/51.11 A, 240/58
• US Class Current: 362/217.08
• CPC Class Codes: B62J 6/01 Electric circuits
• CPC Class Codes: B62J 6/26 warning or informing other road users, e.g. police flash lights
• CPC Class Codes: F21L 14/026 having a linear light source
• CPC Class Codes: F21S 41/00 Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps reversing lights F21S43/00

Abstract

A fluorescent light device for bicycles and other recreational uses comprising a standard fluorescent bulb disposed within a plastic tube and maintained in spaced relationship with the interior walls of said tube by resilient spacers. End caps are adhesively bonded to the tube ends to maintain the assembly in an integral condition. The fluorescent bulb is fired by an ac voltage derived from either an alternator or a battery/inverter combination. A step-up transformer is connected between the alternator and the bulb to achieve firing potential. A tuning capacitor is connected between the transformer secondary winding and the bulb to maximize electrical energy transmission. A short bulb/tube device is adapted for use in combination with a flag having an integral sleeve which fits over the bulb.

Claims

1. A recreational light device comprising:

an elongate cylindrical fluorescent bulb having end terminals;

an elongate cylindrical tube of breakage-resistant light transmitting material having a length and diameter greater than those of bulb, spacer means disposed in each end of said cylindrical tube, each of said spacer means receiving a respective end of said bulb and maintaining the bulb in substantially coaxial disposition within and spaced from said tube, said spacer means being axially and radially flexible to thereby protect said bulb from impacts on said cylindrical tube and power means electrically exciting said bulb, said means including at each end of the bulb a flexible spacer having a cup-shaped body and a peripheral flange at the open end thereof, the flange being in contact with the inner surface of the tube.

2. Apparatus as defined in claim 1 further including end caps secured over and bonded to the ends of said tube.

3. Apparatus as defined in claim 2 wherein said power means includes conductor means extending through one of said end caps to said end terminals and being coiled around said bulb over the length thereof.

4. Apparatus as defined in claim 1 wherein said tube is constructed of a substantially clear plastic material.

5. Apparatus as defined in claim 1 wherein said power means includes a transformer having primary and secondary windings, means for connecting the primary winding to a source of electrical potential and capacitor means connecting the secondary winding across the end terminals of said bulb for direct excitation of said bulb by the voltage appearing across said secondary winding.

6. Apparatus as defined in claim 5 including package means separate from said tube for containing said transformer.

7. Apparatus as defined in claim 6 wherein said package means, comprises a short cylindrical tube of substantially rigid plastic material, a pair of spacers disposed in the ends of said tubes and a pair of end caps disposed over and secured to the ends of said tube.

8. Apparatus as defined in claim 1 wherein said power means includes a transformer, and also includes inverter circuit means, and means electrically connecting the inverter circuit mens between a dc energy source and the primary winding of said transformer.

9. Apparatus as defined in claim 8 further including a battery case for providing a dc energization to said inverter circuit.

10. Apparatus as defined in claim 1 including means for securing said light device to a framebar of a bicycle.

11. Apparatus as defined in claim 1 wherein said bulb is of a length of approximately 5 inches thus to be securable to the free end of a bicycle flag stick.

12. Apparatus as defined in claim 10 further including a transformer package separate from said light device and interconnected therewith by conductor means of sufficient length as to permit the light device to be mounted on the free end of a bicycle end flag stick and the transformer device to be mounted on the bicycle frame.

13. Apparatus as defined in claim 11 further including a flag having a sleeve portion adapted to be wrapped around said tube.

14. Apparatus as defined in claim 1 wherein said bulb is green.

15. The light device according to claim 1 wherein said spacer means further includes another flexible spacer at each end having a cupped body receiving a respective one of said one flexible spacer, each of said another spacer having a dished flange formed thereon being in contact with the inner surface of said tube.

16. The light device according to claim 15 further including a pair of end caps disposed on either end of said cylindrical tube and engaging a respective end wall of each of said cupped body of each of said another flexible spacers.