Resistance heating system

• US 7,141,766 B2
• Filed: 03/08/2005
• Issued: 11/28/2006
• Est. Priority Date: 03/08/2005
• Status: Expired

• Current Assignee: Power House Tool Incorporated
• Original Assignee: JNT Technical Services Incorporated, Power House Tool Incorporated
• Inventors: Kelly, Michael W., Patterson, Laura, Jorgensen, Glenn F.
• Primary Examiner(s): PASCHALL, MARK H
• Application Number:
  US11/074,507
• Publication Number:
  US 20060201929A1
• Time in Patent Office: 630 Days
• Field of Search: 219/490, 219/494, 219483-486, 219/202, 219/205, 219/497, 219/505, 219/492, 219/506, 219/533, 219/535
• US Class Current: 219/497
• CPC Class Codes: B23P 19/068 by using heating means
• CPC Class Codes: H05B 3/0014 Devices wherein the heating current flows through particular resistances

Abstract

A resistance heating system is provided which includes a resistance heater, a source of alternating current electricity connected by conductors to the resistance heater, and a controller comprising a timer arranged to connect the source of alternating current electricity to the resistance heater for a selected time period and to disconnect the source from the resistance following the selected time period. In an embodiment, the resistance heating system is provided with a controller configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles arranged to receive electricity. An electricity conducting cable having a cable plug at one end is configured to be received in the receptacles and has a resistance heater provided at an opposite end. A master timer may be connected with a communication arrangement to the controller. The master timer is arranged to control an electric output of a plurality of the receptacles.

Claims

1. A resistance heating system comprising:

a controller configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles arranged to receive electricity,

a plurality of electricity conducting cables, each having a cable plug at one end configured to be received in one of said receptacles and having a resistance heater provided at an opposite end,

an individual timer associated with each receptacle arranged to selectively provide such receptacle with electricity during a time interval,

a master timer connected with a communication arrangement to said controller,

said master timer arranged to selectively provide a plurality of said receptacles with electricity during a time interval, and

a switch to permit a user to select a master timer or an individual timer control for each receptacle.

2. A resistance heating system according to claim 1, wherein said individual timers and said master timer include an input arrangement for a user to input a selected time into said timers.

3. A resistance heating system according to claim 1, wherein said resistance heater comprises a bolt heater.

4. A resistance heating system according to claim 3, wherein said bolt heater includes a visual indicator to indicate when electrical current is being supplied to said bolt heater.

5. A resistance heating system according to claim 3, further including an adapter sheath arranged to effectively increase a diameter of said bolt heater.

6. A resistance heating system according to claim 1, wherein said source of alternating current electricity provides 480 volt electricity.

7. A resistance heating system according to claim 1, wherein said controller includes a visual indicator for displaying a status of each of said timers.

8. A resistance heating system according to claim 1, wherein said controller is mounted on a portable frame.

9. A resistance heating system comprising:

a controller configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles arranged to receive electricity,

a plurality of electricity conducting cables each having a cable plug at one end configured to be received in said receptacles and having a resistance heater provided at an opposite end,

a master timer connected with a communication arrangement to said controller,

said master timer arranged to control an electric output of a plurality of said receptacles, and

an illumination display indicator associated with each receptacle to provide an indication of a status of each receptacle.

10. A resistance heating system according to claim 9, wherein said controller is mounted on a portable frame.

11. A resistance heating system according to claim 10, wherein said frame is provided with wheels.

12. A resistance heating system according to claim 9, wherein said master timer is provided remote from said controller.

13. A resistance heating system according to claim 9, wherein said master timer controls electricity flow to each of said receptacles.

14. A resistance heating system according to claim 9, wherein said controller includes a user operable selection switch to enable said master timer to control said electric output of said plurality of receptacles.

15. A resistance heating system according to claim 9, wherein said master timer includes an input arrangement for a user to input a selected time into said timer.

16. A resistance heating system comprising:

a controller configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles,

a plurality of electricity conducting cables each having a cable plug at one end configured to be received in said receptacles and having a resistance heater provided at an opposite end,

a timer associated with each receptacle,

an input arrangement for a user to input a selected time into said timers, and

a visual indicator arranged to display a status of each of said receptacles.

17. A resistance heating system according to claim 16, wherein said controller is mounted on a portable frame.

18. A resistance heating system according to claim 16, further including a remote controller arranged to provide timer control for each of said receptacles simultaneously.

19. A resistance heating system according to claim 16, wherein said source of alternating current electricity comprises 480 volt, 3 phase alternating current electricity.

20. A resistance heating system according to claim 16, wherein said resistance heater comprises a bolt heater.

21. A resistance heating system according to claim 20, wherein said bolt heater includes a visual indicator to indicate when electrical current is being supplied to said bolt heater.

22. A resistance heating system according to claim 20, further including an adapter sheath arranged to effectively increase a diameter of said bolt heater.

23. A multiple receptacle controller comprising:

a portable frame configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles arranged to receive electricity from said source,

an individual timer associated with each receptacle and arranged to selectively control an electric output of the associated receptacle, including an input arrangement for a user to input a selected time into said individual timer,

a master timer arranged to selectively control an electric output of a plurality of said receptacles, including an input arrangement for a user to input a selected time into said master timer,

said input arrangement for said master timer being located on a pendant separate and remote from said portable frame of said controller, said pendant being connected to said controller frame via an electricity conducting cable,

a switch associated with each receptacle to permit a user to select a master timer control or an individual timer control for each receptacle.

24. A multiple receptacle controller according to claim 23, wherein said frame is wheeled.

25. A multiple receptacle controller according to claim 23, wherein said switch further permits a user to energize each associated receptacle regardless of the status of any timer associated with said receptacle.

26. A multiple receptacle controller according to claim 23, further including a timing circuit to measure a period of time following the termination of energization of the receptacle by the selected timer and an illumination display energized following the termination of said period of time.