Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent
1997-02-05
1999-12-07
Gellner, Michael L.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
294 655, B25J 1506, H01F 720
Patent
active
059990740
ABSTRACT:
A magnetic head for a magnetic pick-up tool includes a magnet having a pick-up surface and a sleeve member having an open end and being slidably positioned over the magnet, the sleeve member being made of a material acted upon by the magnet such that the magnet exerts a force upon the sleeve for maintaining the sleeve in a rest position wherein the open end extends beyond the pick-up surface, wherein the sleeve is slidable in a direction away from the pick-up surface and against the force to a withdrawn with respect to the magnet. A magnetic pick-up tool including a magnet head is also disclosed.
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Coleman, Jr. Edward S.
Stromski Stanley
Barrera Raymond
Gellner Michael L.
Ullman Devices Corporation
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