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Generators or Motors

High-energy-magnetizer-demagnetizer-for-drill-housing

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High energy magnetizer/demagnetizer for drill housing

Details

Inventors: Anderson, Wayne;
Assignee:
Primary Examiner: LaBalle; Clayton
Assistant Examiner:
Attorney, Agent or Firm: Lackenbach Siegel Marzullo Aronson Greenspan, P.C.

A high energy magnetizer/demagnetizer on a nonoperative portion of a housing of a power driving tool includes a magnetizer/demagnetizer body on the nonoperative portion of the power driving tool and defining a mounting axis. At least one permanent magnet is formed of a magnetized material having North and South poles defining a magnetic axis and arranged on the body of the power driving tool to permit selective placement of a magnetizable element at at least one position along the magnetic axis at a predetermined distance from one of the poles to magnetize the element and placement of the magnetizable element at a selected distance from the other of the magnetic poles greater than the predetermined distance to demagnetize the element. In this way, a magnetizable element may be initially magnetized by the magnetizer on the housing of the power driving tool by positioning same adjacent to one of the poles mounted on the nonoperative portion of the driving tool and optionally subsequently demagnetized by positioning the magnetizable element a selected distance from the other of the poles.

DETAILED DESCRIPTION It is an object of the present invention to provide a high energy magnetizer/demagnetizer on a power driving tool or the like.
It is another object of the present invention to provide a magnetizer/demagnetizer as aforementioned which provides sufficiently strong magnetic fields to effectively and adequately magnetize/demagnetize a driver bit and/or a magnetizable component.
It is still another object of the present invention to provide a magnetizer/demagnetizer as in the previous objects in which the magnetizing and demagnetizing fields are created proximate to the surface of a nonoperative portion of a housing of a power driving tool.
It is yet another object of the present invention to provide a tool as in the previous objects in which the magnetizer/demagnetizer is provided with one or more openings in which the magnetizing and/or demagnetizing fields are formed for convenient and reliable magnetization and/or demagnetization.
It is a further object of the present invention to provide a magnetizer/demagnetizer as in the previous object that can be incorporated in original equipment (OEM) or can be an add-on to existing power driving tools.
It is still a further object of the present invention to provide a magnetizer/demagnetizer as in the previous object that is simple and convenient to mount or attach to an existing drill housing.
It is yet a further object of the present invention to provide a magnetizer/demagnetizer which uses a permanent magnetic material having an energy product equal to at least 7.
0.
times.
10.
sup.
6 gauss-oersteds.
In order to achieve the above objects, as well as others which will become apparent hereinafter, a high energy magnetizer/demagnetizer on a nonoperative portion of a housing of a power driving tool comprises a magnetizer/demagnetizer body on the nonoperative portion of the driving tool and defining a mounting axis.
At least one permanent magnet is formed of a magnetized material having North and South poles defining a magnetic axis is arranged on said body of the power driving tool to permit selective placement of a magnetizable element at at least one position along said magnetic axis at a predetermined distance from one of said poles to magnetize the element and placement of the magnetizable element at a selected distance from the other of said magnetic poles greater than said predetermined distance to demagnetize the element

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