Victor S Nelson

US Patent:

6518685, Feb 11, 2003

Filed:

Jan 12, 2001

Appl. No.:

09/759052

Inventors:

Victor Nelson - East Northport NY 11731

International Classification:

A41F 1900

US Classification:

310191, 310 37, 310103, 31015601

Abstract:

A multi-position actuator with three electromagnetic poles where the airgap of selected pole(s) is made different from the remaining pole(s). The multi-position actuator comprises a housing, an armature rotatably mounted in the housing, and three poles journaled around the armature. There is also a stop arm attached to the armature which stops the rotation of the armature when the stop arm hits an adjacent stop. These stops are positioned within the housing to limit the rotation of the armature. This multi-position actuator is designed to form either a fail safe actuator or a latching actuator by adjusting the spacing of the air gap between the poles and the armature. When used with continuous rotation without the stop mechanism, the air gap(s) of the pole(s) can be adjusted in a repetitive manner to produce a useful magnetic torque.

US Patent:

59695889, Oct 19, 1999

Filed:

Sep 15, 1998

Appl. No.:

9/153195

Inventors:

Victor H Nelson - East Northport NY

International Classification:

H01F 700

US Classification:

335229

Abstract:

A ratchet and ball magnetic index device having a drive motor plate with a top surface and a bottom surface. The drive motor plate contains at least one ball receiving recess on the periphery of the bottom surface of the drive motor plate. A permanent magnet armature is secured to the top surface of the drive motor plate and rotates freely around a rotor shaft. A sector motor rotates the armature and drive plate when turned on. A ratchet plate, attached to the rotor shaft, has a bottom surface and a top surface with a plurality of contours displaced in a circular direction around the circumference of the ratchet plate. Each of the contours has a flat plane connected to an incline plane which is connected to a vertical plane. At least one magnetically attractable drive ball is positioned between the top surface of the ratchet plate and the bottom surface of the drive motor plate, wherein the drive ball moves freely within the ball receiving recess. A plurality of permanent magnets are positioned between the top surface and the bottom surface of the ratchet plate and located beneath each of the flat planes.

US Patent:

52066100, Apr 27, 1993

Filed:

Jun 3, 1991

Appl. No.:

7/709311

Inventors:

Victor Nelson - East Northport NY

International Classification:

H01P 110

US Classification:

333106

Abstract:

A transfer device for selectively combining and switching microwave signals between selective ports in a housing in which is a cylindrical rotor. In a lower portion of the rotor is a first passage having three arms each of which terminates at one of the ports when the rotor is one position so that microwave signals entering the passage via two of the arms are combined and leave the rotor and housing via the third arm. In an upper portion of the rotor are second and third passages which are blocked when the rotor is in the first position to prevent switching of signals therein When the rotor is in the second and third positions the second and third passages pass microwave signals between selected pairs of ports, while the arms of the first passage are blocked to prevent combining of signals therein.

US Patent:

48916137, Jan 2, 1990

Filed:

Jan 9, 1989

Appl. No.:

7/294829

Inventors:

Victor Nelson - East Northport NY

International Classification:

H01P 112

US Classification:

333108

Abstract:

This microwave transfer device is a hollow body having an internal cavity and lateral input and output openings communicating with the cavity. A post in the cavity divides it into passages extending between input and output openings for passing microwave signals therebetween. Axially reciprocatable shorting pins are supported on the body and are selectively insertable in the passages to close off the passages, and retractable from the passages to open the same. By proper selective insertion and retraction of the pins, microwave signals applied at the input openings can be combined, divided, or switched, respectively, to the output openings.

US Patent:

56420862, Jun 24, 1997

Filed:

Aug 28, 1995

Appl. No.:

8/519691

Inventors:

Victor H. Nelson - East Northport NY

International Classification:

H01H 5300

US Classification:

335 4

Abstract:

A switch includes switching elements which are mounted within a sealed radio frequency cavity. The switching elements provide electrical contact paths between contact portions of connectors which project into the cavity. The switching elements are urged against the contacts by magnetic forces. During operation, unselected paths have their switching elements grounded out by the action of external magnets which attract the unselected switching elements to a ground plate with a magnetic force which overcomes the magnetic forces urging the switching elements against the contacts.

US Patent:

49655426, Oct 23, 1990

Filed:

Feb 28, 1989

Appl. No.:

7/316659

Inventors:

Victor Nelson - East Northport NY

International Classification:

H01H 5300

US Classification:

335 5

Abstract:

This invention concerns a magnetic switch assembly used for switching input and output signals between coaxial transmission lines connected to a body having a closed cavity in which terminals of the lines are exposed. One or more conductive contact members, which are the only moving parts in the cavity, bridge one or more pairs of line terminals in closed circuit portion. The contact members are moved magnetically from open to closed position, and are latched or held failsafe by stationary permanent magnets or pulsed electromagnets. The contact members are moved to open position by pulsed electromagnets or rotatable permanent magnets. The contact members comprise magnetized strips, magnetic strips, or nonmagnetic strips carrying magnets or magnetic members. The assembly can be arranged for single or multiple pole, single or multiple throw switching.