Charles J Watson

US Patent:

7233087, Jun 19, 2007

Filed:

Jan 31, 2005

Appl. No.:

11/047391

Inventors:

Charles S. Watson - New Port Richey FL, US

International Classification:

H02K 7/06

US Classification:

310 80, 310 75 A, 310113, 310103

Abstract:

Electric energy from a battery is employed to shift the permanent magnetic field located in a generator. A spring housing is located distal from the generator. An outer magnet housing enclosing an inner rotating magnetic housing is positioned between the generator and the spring housing. A shaft is integral with and turns with the inner magnetic housing. An end of the shaft distal from the inner magnetic housing passes through the generator and is actuated by a sensor mounted over the shaft end.

US Patent:

43534538, Oct 12, 1982

Filed:

Apr 10, 1980

Appl. No.:

6/138996

Inventors:

Norman D. Partin - Henderson NV
Charles L. Watson - Phoenix AZ

Assignee:

ATN Research & Development Corporation - Henderson NV

International Classification:

G07F 302

US Classification:

194100A

Abstract:

An improved coin acceptor mechanism employing an oscillator and a resonant circuit for detecting the electromagnetic effect of valid and invalid coins passing through a coil of the tuned circuit. A particular linear coil configuration provides a unique signature for each coin including at least one maximum and one minimum amplitude level of resonant circuit current. A comparator establishes at least two electrical signal amplitude windows representative of each valid coin signature. A logic circuit responds only to the coin falling within the two electrical signal amplitude windows for actuation. A novel coil design and assembly are enclosed.