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Air-tool-with-integrated-generator-and-light-ring-assembly

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Air tool with integrated generator and light ring assembly

Details

Inventors: Leininger, Jon J.;
Assignee: Volt-Aire Corporation (Houston, TX)
Primary Examiner: Stephan; Steven L.
Assistant Examiner: Cuneo; Christopher
Attorney, Agent or Firm: Foley & Lardner

An improved air tool includes an integrated air motor and electrical generator wherein the stator is positioned on a side of the rotor body opposite the working end of the tool to reduce vibrations transmitted to the stator. The stator is also positioned between the compressed air inlet and the rotor body such that compressed air flows across the stator to prevent overheating of the stator. The air tool includes an indicating circuit connected to the battery charging circuit for indicating a battery charge condition, a battery discharge condition, and a low lubrication condition of the air vanes. A light ring assembly is attached to the working end of the tool housing to provide light at the working end of the tool. Materials chosen for the magnets and the poles of the stator increase the power capability of the electrical generator. An illuminating apparatus for a conventional air tool includes a light ring with integral generator.

DETAILED DESCRIPTION It is an object of the present invention to provide an improved air tool wherein the integrated generator is subjected to less vibration.
It is another object of the present invention to provide an improved air tool Wherein the integrated generator operates in a cooler environment.
It is yet another object of the present invention to provide an improved air tool with an integrated lighting device which is light in weight, automatically directed towards the working area and is small in size.
It is a further object of the invention to provide an improved air tool which can be made smaller in size.
It is still another object of the present invention to provide an improved air tool with increased electrical power capability.
It is yet another object of the present invention to provide an improved air tool which can indicate whether or not the generator is charging.
It is yet a further object of the present invention to provide an improved air tool which indicates whether or not lubrication to the air vanes is sufficient.
Another object of the present invention is to provide an illuminating apparatus with an integrated electric generator for providing light to a conventional air powered tool.
These and other objects of the present invention are achieved by an air tool having a working end and comprising a tool housing; a compressed air inlet; and an integrated air motor and electrical generator, for powering the air tool and positioned within the housing, the integrated air motor and electrical generator including a shaft mounted on a-bearing, for rotation within the housing; a rotor body attached to the shaft; a plurality of vanes connected to the rotor body; a plurality of magnetic elements disposed in the rotor body; and a stator positioned within the housing axially aligned with the rotor body, on a side of the rotor body opposite the working end of the air tool and between the compressed air inlet and the rotor body such that compressed air flows across the stator, wherein the stator interacts with the magnetic elements to generate electricity when the rotor body is rotated by the compressed air

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