Switching device

• US 5,811,896 A
• Filed: 12/06/1996
• Issued: 09/22/1998
• Est. Priority Date: 12/06/1996
• Status: Expired due to Fees

• Current Assignee: Boris Grad
• Original Assignee: Boris Grad
• Inventors: Grad, Boris
• Primary Examiner(s): Leja, Ronald W.
• Assistant Examiner(s): PALADINI, ALBERT WILLIAM
• Application Number:
  US08/759,728
• Time in Patent Office: 655 Days
• Field of Search: 307/125, 307/116, 335/205, 335/151, 335/153, 324/419, 362/123
• US Class Current: 307/125
• CPC Class Codes: H01H 36/0026 comprising a biasing, helping or polarising magnet

Abstract

A switching device (10) for an electrical load, particularly for an electrical toy compraising a normally open reed switch (14) and a fixed biasing magnet (15) located at a distance from the glass tube (17) of the reed switch such that the magnetic strength of the biasing magnet in the area of the reed switch has value less than required for switching on of the reed switch and greater than required for switching off of the same switch.

The switch can be actuated--closed by applying to this switch an additional magnetic field the same orientation as the biasing magnetic field; the reed switch is closed and remains closed after removing the magnetic field.

This switch can be deactuated--opened by applying to the switch a magnetic field with orientation opposite to the orientation of the biasing magnetic field; the reed switch is opened and remains opened after removing the magnetic field.

Claims

1. A switching means comprising:

a reed switch with soft magnetic material of the blades turned on and off by an external magnetic field of the direct current line;

a fixed biasing magnet located in the hysteresis area of said reed switch such that the magnetic field is slightly less than that required to close said reed switch.

2. The switching means of claim 1, wherein said reed switch is a center-gap-type reed switch with soft magnetic material of the blades.

3. The switching means of claim 1, wherein said reed switch is an offset-type-reed switch with soft magnetic material of the blades.

4. The switching means of claim 1, wherein between said reed switch and said direct current line installed chopper.

10. The switching means of claims 1 or 5, wherein said biasing magnet has a bar shape.

11. The switching means of claim 1 or 5, wherein said biasing magnet has a rod shape.

5. A switching means comprising:

a reed switch with soft magnetic material of the blades turned on and off by an external magnetic field of a coil or a permanent magnet;

a fixed biasing magnet located in the hysteresis area of said reed switch such that the magnetic field is slightly less than that required to close said reed switch.

6. The switching means of claim 5, wherein said reed switch is a center-gap-type reed switch with soft magnetic material of the blades.

7. The switching means of claim 5, wherein said reed switch is an offset-type reed switch with soft magnetic material of the blades.

8. The switching means of claim 5, wherein said biasing magnet is a ring type magnet.

9. The switching means of claim 8, wherein said biasing magnet fixed on the blades of more than one said reed switches;

said reed switches installed inside a control coil.

12. A switching means for electrically connecting an electrical toy including Christmas tree lights to a power source comprising:

an normally open reed switch turned on and off by a magnetic field,

a biasing magnet, fixed on the lead of said reed switch;

said biasing magnet located at a distance from the glass tube of said reed switch such that its magnetic strength at the area of said reed switch has a value less than required for switching on of said reed switch and greater than switching off value of said switch,

a magnetic wand means used for control of switching on and off of said reed switch by placement of said magnetic wand close to said reed switch;

said wand comprising;

a manually graspable handle and a magnet connected to said handle.

13. The switching means of claim 12, further including the housing where said reed switch and said biasing magnet are enclosed.

14. The switching means of claim 12 further including an amplifying means for electrically connecting an electrical load to main power source;

a control terminal of said amplifying means is connected to a control power supply by said reed switch.

15. The switching means of claim 13, further including an amplifying means for electrically connecting an electrical load to a main power source;

control terminal of said amplifying means is connected to a control power supply by said reed switch.

16. The switching means of claim 14, wherein one power source is used as said main power source and said control power supply.

17. The switching means of claim 15, wherein one power source is used as said main power source and said control power supply.