Inertia switch and flashing light system

• US 7,170,019 B2
• Filed: 07/14/2003
• Issued: 01/30/2007
• Est. Priority Date: 07/14/2003
• Status: Expired due to Fees

• Current Assignee: Cheerine Development Limited
• Original Assignee: Cheerine Development Limited
• Inventors: Mak, Lai Cheong, Wong, Wai Kai
• Primary Examiner(s): LEE, KYUNG S
• Application Number:
  US10/620,001
• Publication Number:
  US 20050011737A1
• Time in Patent Office: 1,296 Days
• Field of Search: 200/61.45 M, 200/61.45 R, 200/61.52, 200/61.53, 335205-207, 335/302, 362/103, 362/200, 362/203, 362/276
• US Class Current: 200/61.45M
• CPC Class Codes: A43B 3/36 with light sources
• CPC Class Codes: H01H 35/142 Damping means to avoid unwanted response

Abstract

Inertia switches in insulating housings are used to make or break electrical contact. The switches may be small in size, and may be used with flashing light systems in footwear or other articles. One embodiment is a directional switch sensitive to the orientation of the switch and the motion of the switch due to outside forces. Footwear with flashing light systems that use these inertia switches may make the wearer or user more visible at night, adding a measure of safety as well as fun. Flashing light systems using these inertia switches may also be used to illuminate personal accessories and articles of clothing.

Claims

1. A flashing light system and an inertia switch, comprising:

a flashing light system mounted in footwear, an article of clothing, or a personal accessory worn by a user;

an inertia switch connected to the flashing light system, the inertia switch comprising an insulating housing;

a first and a second contact mounted side by side in the housing; and

a first magnet mounted to the housing and a second magnet disposed within the housing, the first magnet and the second magnet opposed by a repulsive force between the magnets, wherein the switch is normally open and motion of the user causes the second magnet to move, contacting both contacts and closing the switch.

2. The flashing light system and inertia switch of claim 1, further comprising a mass connected to the second magnet.

3. The flashing light system and inertia switch of claim 1, further comprising a controller having a memory for storing patterns of flashing.

4. The flashing light system and inertia switch of claim 1, wherein the magnet is electrically conductive.

5. The flashing light system and inertia switch of claim 4, wherein the flashing light system farther comprises a plurality of LEDs, a controller, and a power source.

6. The flashing light system and inertia switch of claim 4, wherein the flashing light system further comprises at least two voltage sources and at least one LED connected to the at least two voltage sources, wherein the flashing light system applies at least two voltages sequentially to the at least one LED.

7. A method of controlling a flashing light system, the method comprising:

assembling a flashing light system comprising an inertia switch according to claim 1; and

mounting the flashing light system in an item selected from the group consisting of footwear, an article of clothing, and a personal accessory, wherein the flashing light system may be activated by causing motion of the inertia switch.

8. A method of making a flashing light system, the method comprising:

making an inertia switch according to claim 1;

assembling the inertia switch into a flashing light system; and

installing the flashing light system into an item selected from the group consisting of footwear, an article of clothing, and a personal accessory.

9. The method of claim 8, further comprising controlling flashing of the system using a controller and patterns of flashing stored in a memory of the system.

10. The flashing light system and inertia switch of claim 1, further comprising a touch switch or a toggle switch.

11. The flashing light system and inertia switch of claim 1, further comprising a RC control circuit.

12. A method of controlling a flashing light system, the method comprising:

mounting two conductors side by side in an insulating housing;

placing a first magnet and a second magnet in the housing, the first magnet and the second magnet opposed by a repulsive force between the magnets to form an inertia switch for a flashing light system; and

closing the inertia switch through motion of the switch, causing the first magnet to contact both contacts simultaneously and activate the flashing light system.