Illumination – Self powered lamp – Having plural lamp bulbs or lamp sockets
Reexamination Certificate
2000-09-07
2001-09-25
Sember, Thomas M. (Department: 2875)
Illumination
Self powered lamp
Having plural lamp bulbs or lamp sockets
C362S185000, C362S186000, C362S102000, C362S202000, C362S205000, C362S206000, C362S267000, C362S577000, C362S249070, C200S060000
Reexamination Certificate
active
06293684
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to hand-held lights having cylindrical or rod-shaped transmitters of light used mostly for wand-like signaling and warning.
There are numerous known types and descriptions of signaling rods and lights. A major use is for directing traffic. Particularly in parts of the world with much automobile traffic but inadequate traffic lights and low-cost labor, they are used extensively for human direction of automobile and pedestrian traffic. A predominant use worldwide is at airports for ground crews to direct positioning of aircraft. A wide range of uses is for various warning signals and for broad illumination.
Most early signaling lights were adaptations of flashlights. Later, light emitting diodes (LEDs) became widely used. Then there was a revival of flashlights that were specially designed and structured for signaling rods or wands.
Examples of most-closely related known but yet different wand-like lights are described in the following patent documents. U.S. Pat. No. 5,697,695, issued to Lin, et al. on Dec. 16, 1997, described a “signal stick” with red, yellow and green LEDs that were timed automatically like a traffic light or manually with current from flashlight batteries. U.S. Pat. No. 5,622,423, issued to Lee on Apr. 22, 1997, described a hand-carried traffic-control light having a printed circuit board with a plurality of openings where LEDs were positioned in a transparent tube on an end of a flashlight and having a flashlight bulb at an end of the transparent tube with push-switch control. U.S. Pat. No. 5,392,203, issued to Harris, Jr. on Feb. 21, 1995, described a signal-light assembly with an elongate translucent, brightly colored and watertight tube in which batteries were positioned in a daytime-signal portion for powering a bulb to light a nighttime-signal portion internally. U.S. Pat. No. 5,081,568, issued to Dong, et al. on Jan. 14, 1992, described a police baton with automated or optionally manual switching between red, yellow and green LEDs in a transparent tube on an end of a flashlight for directing traffic. U.S. Pat. No. 5,079,679, issued to Chin-Fa on Jan. 7, 1992, described a multi-purpose directing stick having a battery-operated whistle in an elongate light tube on an end of a flashlight handle. U.S. Pat. No. 5,060,123, issued to Arnold on Oct. 22, 1991, described a flashlight in a policeman's billy club. U.S. Pat. No. 5,036,442, issued to Brown on Jul. 30, 1991, described an illuminated wand with optional hooks on ends for attachment to objects like wheels.
SUMMARY OF THE INVENTION
Objects of patentable novelty and utility taught by this invention are to provide a wand light which:
can have heavy-duty construction for rigorous use;
can be waterproofed for use in rain, floods and slushy environments;
has protected switching that cannot be activated unintentionally or accidentally;
has a handle portion that is optionally bright-colored for daylight signaling;
has a light tube that is optionally clear for lighting with selectively colored LEDs or brightly colored for a selected fixed-color lighting;
is resilience-cushioned against impact damage to electrical components and circuitry;
has optional selectivity of predetermined LED-color lighting; and
can be sized adaptively for a plurality of select uses.
This invention accomplishes these and other objectives with a wand light having a base tube with a light-tube end in which a base end of a light tube is pivotal concentrically with pivotal-light-switch attachment of the light tube to the base tube. The base tube contains stored electrical energy, electrical conveyances, pivot-switch electrical contacts and a tubular light-tube attachment. The light tube contains a plurality of LEDs on a circuit board that is predeterminedly transparent and shockproof resilient or, optionally, a flashlight bulb. The light tube is twisted in the base tube for selective switching of current for the LEDs. Waterproof pivotal attachment of the light tube to the base tube, waterproof construction of the light tube and waterproof construction of the base tube render the entire wand light waterproof. Predetermined ruggedness, diameter, length, diameter per length and length of the light tube per length of the base tube render it adaptable to a wide variety of uses. Accidental and unintentional switching are prevented with the twist switching. Daytime signaling is provided by appropriate coloring and brightness of coloring of the base tube while being handheld with the light tube. Nighttime signaling is provided by appropriate coloring and brightness of coloring of the light tube and the LEDs while being handheld with the base tube.
The above and other objects, features and advantages of the present invention should become even more readily apparent to those skilled in the art upon a reading of the following detailed description in conjunction with the drawings wherein there is shown and described illustrative embodiments of the invention.
REFERENCES:
patent: 4600974 (1986-07-01), Lew et al.
patent: 5036442 (1991-07-01), Brown
patent: 5060123 (1991-10-01), Arnold
patent: 5079679 (1992-01-01), Chin-Fa
patent: 5081568 (1992-01-01), Dong et al.
patent: 5309337 (1994-05-01), Groben
patent: 5392203 (1995-02-01), Harris, Jr.
patent: 5622423 (1997-04-01), Lee
patent: 5697695 (1997-12-01), Lin et al.
Alavi Ali
Livingston, Esq. Edward M.
Sember Thomas M.
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