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| Color video projecting apparatus using acousto-optical deflector |
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Disposable flashlight
| Details |
Inventors: Hohenstein, Matthaus T.;
Assignee: Tecmavest Maschinen AG (Zug, CH)
Primary Examiner: Husar; Stephen F.
Assistant Examiner:
Attorney, Agent or Firm: Brumbaugh, Graves, Donohue & Raymond
A disposable flashlight uses a cylindrical battery as the flashlight body. A bulb fixture is affixed directly to one end of the battery and provides electrical contact between one terminal of the bulb and one terminal of the battery, and between the other terminal of the bulb and a conducting portion of the bulb fixture. A normally open switch affixed to the sidewall of the battery has one terminal connected to the conducting portion of the bulb fixture and another terminal connected to the other terminal of the battery, such that when the switch is closed by the application of pressure thereon, a circuit is completed to energize the bulb. A relatively thin, pliable, insulating material covers substantially the entire sidewall of the battery, including the connections to the switch. |
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DETAILED DESCRIPTION In accordance with the invention there is provided an improved disposable flashlight comprising a battery which serves as the body of the flashlight.
A bulb fixture is affixed to the external surface of the battery for holding a bulb and for providing electrical contact between one terminal of the bulb with one terminal of the battery, the bulb fixture having a conducting portion for making electrical contact with the other terminal of the bulb.
An on/off switch is affixed to the external surface of the battery, the switch having two terminals of which one is connected through a first strip-like conductor to the other terminal of the battery and the other is connected through a second strip-like conductor to the conducting portion of the bulb fixture.
The strip-like conductors are both affixed to the external surface of the battery, and a relatively thin, pliable, insulating material covers substantially all of the exposed external surface of the battery and the strip-like conductors.
In an exemplary embodiment of the disposable flashlight, the battery has a substantially cylindrical shape with two opposing ends and a sidewall.
The two terminals of the battery are disposed at respective opposite ends thereof.
The bulb fixture, which has a generally cylindrical shape and a concave reflecting surface, is affixed to one end of the battery.
The bulb fixture has a threaded aperture at the center of the concave reflecting surface, which passes through the conducting portion of the bulb fixture and provides access to one of the terminals of the battery.
The threaded aperture mates with a threaded base of the bulb, which serves as one of the terminals of the bulb.
The other terminal of the bulb is positioned at the end of the threaded base, such that when the bulb is threaded into the aperture of the bulb fixture, one terminal of the bulb makes electrical contact with the conducting portion of the bulb fixture, while the other terminal of the bulb makes electrical contact with one terminal of the battery
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Light Fixtures 
