US Patent: 4,919,020
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| Spring-Loaded Magnetic Driver and Method of Assembly Thereof
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Patentee:
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| David A. Huebschen (exact or similar names) - Kenosha, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 23, 1989 |
| Granted: |
Apr. 24, 1990 |
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Stan Schulz
Snap-On Tools Company History
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Description: |
| Emrich & Dithmar - patent attorneys
Abstract
A tool for rotatably driving a fastening member includes a hollow tubular shank closed at one end by a handle fixed thereto and having coupled to the other end thereof in communication therewith a socket for receiving an associated rotatable fastening member. A helical compression spring is disposed coaxially within the shank, having the inner end thereof embedded in a body of adhesive material and having the outer end thereof fixed to the keeper of a magnet disposed for magnetic engagement with a fastening member received in the socket. In assembly, the adhesive material is inserted in the shank in a fluid state, the inner end of the spring is immersed in the fluid, and the adhesive is then cured to a solid state.
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