Ben Tsou Carnahan

US Patent:

60421835, Mar 28, 2000

Filed:

Sep 4, 1998

Appl. No.:

9/148626

Inventors:

Garnett Hugh Carnahan - Nixa MO
Ben Tsou Carnahan - Nixa MO

International Classification:

A47C 300

US Classification:

297310

Abstract:

A chair with a strong, but detachable at will, magnetic force stand which preferably includes a swivel chair seat, a vertical spindle, a spindle seat, support legs and a plurality of permanent magnet assemblies provided at the free ends of legs extending out from a thickened hub section supporting the spindle seat. The legs are preferably in an equiangular arrangement with respect to the spindle seat, and the permanent magnet assembly is mounted at a fee end of each of the preferably 3-6 legs. The permanent magnet assemblies include a housing to which a permanent magnet is releasably set and can also be provided with a magnet release device, although for many chair arrangements a release facilitator is not required for achieving detachment, and yet the magnets have sufficient holding strength. When a swivel chair is fixed, the attraction to the underlying support such as the steel deck of a ship, provides sufficient holding power to avoid inadvertent release. When the chair is to be moved away, an operator applies a moving force to the upper extremity of the chair (i. e.