Detection and warning system

• US 20050242935A1
• Filed: 05/04/2005
• Published: 11/03/2005
• Est. Priority Date: 05/04/2005
• Status: Active Grant

• Current Assignee: Eric Adel Kafrawy
• Original Assignee: Eric Adel Kafrawy
• Inventors: Kafrawy, Eric Adel
• Granted Patent: US 7,280,036 B2
• Time in Patent Office: Days
• US Class Current: 340/438
• CPC Class Codes: B60C 11/243 Tread wear sensors, e.g. electronic sensors
• CPC Class Codes: Y10T 152/10027 with wear indicating feature

Abstract

A detection and warning system is presented. The system comprises a logic element, a conductive element, and an indicator. The conductive element is connected to the logic element. The conductive element is embedded at a predetermined location in an object such as a tire tread. When the conductive element breaks after the tire tread wears to a predetermined level, the logic element signals the indicator to warn of an unsafe condition.

Claims

1. A tire tread warning system comprising:

a logic element;

a conductive element connected to the logic element, the conductive element embedded at a predetermined location in the tire tread;

a transmitter coupled to the logic element;

a receiver electrically coupled to the transmitter;

an indicator electrically coupled to the receiver,

wherein the conductive element breaks after the tire tread wears to a predetermined level, the logic element signals the transmitter, the transmitter signals the indicator to warn of an unsafe condition.

2. The tire tread warning system of claim 1 wherein the logic element is one of an inverter and a XOR gate.

3. The tire tread warning system of claim 1 wherein the conductive element is a filament.

4. The tire tread warning system of claim 1 wherein the conductive element is embedded at a depth of greater than or equal to 1/16 inches from a base of the tire tread.

5. The tire tread warning system of claim 1 wherein another conductive element is embedded into another predetermined location in the tire tread.

6. A tire tread warning system comprising:

a logic gate;

a conductive line connected to the logic gate, the conductive line embedded at a predetermined location in the tire tread;

an indicator coupled to the logic gate,

wherein the conductive line breaks after the tire tread wears to a predetermined level and the logic gate signals the indicator to warn of an unsafe condition.

7. The tire tread warning system of claim 6 wherein the conductive line is embedded at a depth in a range of about 3/32 inches to about 1/16 inches from the base of the tire tread.

8. A method for determining a worn tire tread comprising:

embedding a conductive line at a predetermined depth into the tire tread;

coupling a power source to the conductive line;

coupling a logic gate to the conductive line; and

detecting a worn tire tread when the conductive line breaks.

9. The method of claim 8, further comprising:

indicating a worn tire tread.

10. The method of claim 8, further comprising:

transmitting a first signal from the logic gate to a transmitter;

transmitting a second signal from the transmitter to a receiver through wireless communication; and

transmitting a third signal from the receiver to an indicator to warn of the worn tire tread.

11. The method of claim 8, further comprising:

embedding another conductive line into the tire tread.

12. The method of claim 8, wherein the conductive line is embedded within a range of about 3/32 inches to about 1/16 inches from the base of the tire tread.

13. A control module for indicating a worn tire tread comprising:

a logic gate;

a conductive line connected to the logic gate, the conductive line embedded at a predetermined location in the tire tread;

an indicator coupled to the logic gate, wherein the conductive line breaks after the tire tread wears to a predetermined level and the logic gate signals the indicator to warn of an unsafe condition.

14. The control module of claim 13, wherein the logic gate is one of an inverter and a XOR gate.

15. The control module of claim 13, wherein the conductive line is embedded in a range of about 1/16 inches to about 3/32 inches from the base of the tire tread.

16. A control module for indicating an unsafe vehicle condition comprising:

a logic element;

a conductive element connected to the logic element, the conductive element embedded at a predetermined location in the vehicle between a first object that contacts a second object;

an indicator coupled to the logic element,

wherein the conductive element disconnects from the logic element after the first object wears to a predetermined level and the logic element signals the indicator to warn of an unsafe condition.

17. The control module of claim 16, wherein the logic element is one of an inverter and a XOR element.

18. The control module of claim 16, wherein the conductive element is embedded in a range of about 3/32 inches to about 1/16 inches from the base of the tire tread.

19. The control module of claim 16 wherein the first object is one of a tire tread and a brake liner.

20. The control module of claim 16 wherein the unsafe condition relates to one of a worn tire tread, and a worn brake liner.