Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Reexamination Certificate
2008-01-15
2008-01-15
Enad, Elvin (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
C335S290000, C269S008000
Reexamination Certificate
active
11004735
ABSTRACT:
An improve material holding device using magnetic force of variable strength comprising: an electromagnet mounted to a universal bracket adapted to mount to a vertical or horizontal surface, or a vise using the vise bar integrally attached to the underside of the magnet, a safety foot switch and timer, and control means to vary the force of said electromagnet. User can now safely free his hands from work pieces and speedily reposition said work piece.
REFERENCES:
patent: 2381458 (1945-08-01), Meister
patent: 2992580 (1961-07-01), Stolk et al.
patent: 3572680 (1971-03-01), Neff
patent: 4684112 (1987-08-01), Chernikov et al.
patent: 4777463 (1988-10-01), Cory et al.
patent: 2004/0145437 (2004-07-01), Lee
Enad Elvin
Rojas Bernard
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