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US5081568A Expired / Lapsed US ⏱️ 0.0 years remaining

Traffic police baton with means to indicate the direction in the night

Assignee: Individual
•
Filing: 1991-05-28
•
Granted: 1992-01-14
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Expires: 2011-05-28
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Abstract

Abstract A traffic police baton, comprising a light transmitting cylinder which has a corrugated inner wall covered with a layer of light dispersive film, a circuit board assembly fastened in said light transmitting cylinder which has a plurality of high light intensity of light emitting diodes connected together and longitudinally aligned, and a control circuit to control saidd high light intensity of light emitting diodes to flash in sequence according to predetermined setting.

Inventors

  • 👤 Lu J. Dong
  • 👤 Chen C. Wang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 02:51
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/02; F21L4/08; F21V; F21V23/00; F21V23/04; F21V23/0407; F21V23/0414; F21V23/003; F21V23/004; F21V23/006; F21W; F21W2111/00; F21W2111/10; F21Y; F21Y2103/00; F21Y2103/10; F21Y2113/00; F21Y2113/20; F21Y2115/00; F21Y2115/10; Y; Y10; Y10S; Y10S362/00; Y10S362/80

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 279 words
For conducting the traffic, a traffic police baton comprising: a light transmitting cylinder having two opening at two opposite ends and a corrugated surface portion over the inner wall thereof; a light dispersing film covering over said corrugated surface portion; a lamp set fastened in said light transmitting cylinder at one end by a rim; a handle comprised of two opposed shells connected into a cylindrical structure for holding said light transmitting cylinder, having a plurality of blocks raised from the outer wall surface thereof; a bottom cap attached to said handle at the end opposite to said light transmitting cylinder, having a plurality of projecting strips transversely projecting inwards from the top edge thereof defining therebetween a plurality of notches through which said blocks on said handle are inserted and rotated to respectively engage with said projecting strips; a circuit board assembly in an elongated shape having one end inserted inside said handle and an opposite end inserted in said light transmitting cylinder, a plurality of holes longitudinally aligned, a plurality of high light intensity of light emitting diodes respectively fastened in said holes at one end and longitudinally disposed in same direction, a plurality of reflectors respectively fastened in said holes at an opposite end to reflect the light from said high light intensity of light emitting diodes to said light dispersing film, a power supply unit fastened in said handle, a power switch for connecting said power supply unit to said lamp set and said high light intensity of light emitting diodes, a selector switch comprised of a spring and a key for controlling the flash mode of said high light intensity of light emitting diodes.
Claim 2
Dependent Claim 279 words
For conducting the traffic, a traffic police baton comprising: a light transmitting cylinder having two opening at two opposite ends and a corrugated surface portion over the inner wall thereof; a light dispersing film covering over said corrugated surface portion; a lamp set fastened in said light transmitting cylinder at one end by a rim; a handle comprised of two opposed shells connected into a cylindrical structure for holding said light transmitting cylinder, having a plurality of blocks raised from the outer wall surface thereof; a bottom cap attached to said handle at the end opposite to said light transmitting cylinder, having a plurality of projecting strips transversely projecting inwards from the top edge thereof defining therebetween a plurality of notches through which said blocks on said handle are inserted and rotated to respectively engage with said projecting strips; a circuit board assembly in an elongated shape having one end inserted inside said handle and an opposite end inserted in said light transmitting cylinder, a plurality of holes longitudinally aligned, a plurality of high light intensity of light emitting diodes respectively fastened in said holes at one end and longitudinally disposed in same direction, a plurality of reflectors respectively fastened in said holes at an opposite end to reflect the light from said high light intensity of light emitting diodes to said light dispersing film, a power supply unit fastened in said handle, a power switch for connecting said power supply unit to said lamp set and said high light intensity of light emitting diodes, a selector switch comprised of a spring and a key for controlling the flash mode of said high light intensity of light emitting diodes.
Claim 3
Dependent Claim 87 words
The traffic police baton of claim 1, wherein said power supply unit comprises a battery cartridge having two receptacle holes at the top and a plurality of batteries set therein and connected in series with the two opposite polar ends respectively connected to said two receptacle holes, a socket fastened in said circuit board assembly at a lower end, said socket having two spring terminals respectively fastened in said two receptacle holes, and a charger to connect outside AC or DC power supply to charge said batteries.

References Cited (Backward Citations)

US2549103A Cited
US2915744A Cited
US3114143A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-01-13 1995-07-15 1996-01-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-01-13 1999-07-15 2000-01-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-01-13 2003-07-15 2004-01-14 $7700.00 Window Closed / Lapsed

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