Adjustable electrical tell tale modular unit and external monitor

• US 20040005811A1
• Filed: 06/27/2003
• Published: 01/08/2004
• Est. Priority Date: 05/13/2002
• Status: Active Grant

• Current Assignee: Dennis Ronald Gravolin
• Original Assignee: Dennis Ronald Gravolin
• Inventors: Gravolin, Dennis Ronald
• Granted Patent: US 7,052,031 B2
• Time in Patent Office: Days
• US Class Current: 439/503
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/6691 with built-in signalling means H01R13/717 takes precedence

Abstract

An electrical tell tale system comprises a main control unit forming part of a trailer connector. The main control unit is a moulded module or cut printed circuit board, which fits into the connector. The main control unit has aligned pin connections to connect to and monitor all of the existing connections in the connector. The main control unit module includes screw type connections for the wiring from the vehicle harness and a tell tale monitor. The main control unit module is housed in the connector and by its connections changes the normal operation of the trailer connector to monitor all of its housed circuit connection in one complete unit.

Claims

1. An electrical tell tale system, comprising:

a main control unit forming part of a trailer connector;

said main control unit is a moulded module or cut printed circuit board, which fits into said connector;

said main control unit has aligned pin connections to connect to and monitor all of the existing connections in the connector;

said main control unit module including screw type connections for the wiring from the vehicle harness and a tell tale monitor;

said main control unit module being housed in the connector and by its connections changes the normal operation of said trailer connector to monitor all of its housed circuit connection in one complete unit.

2. An electrical tell tale system as in claim 1, wherein an external tell tale monitor connected to said main control unit and mounted on a caravan or trailer.

3. An electrical tell tale system as in claim 1, wherein said main control unit includes a variable or fixed resistors to accommodate for differing trailer circuit current loads.

4. An electrical tell tale system as in claim 2, wherein said main control unit and said tell tale monitor incorporate additional resistors for circuit protection.

5. An electrical tell tale system as in claim 1, wherein said trailer connector can be any existing trailer plug, socket or adapter.