Touch sensitive switching apparatus

• US 5,291,068 A
• Filed: 09/01/1992
• Issued: 03/01/1994
• Est. Priority Date: 09/01/1992
• Status: Expired due to Term

• Current Assignee: Hubbell, Inc.
• Original Assignee: Sterner Lighting Systems, Inc. (Hubbell, Inc.)
• Inventors: Arbouw, Terrence R., Rammel, Thomas W.
• Primary Examiner(s): Gaffin, Jeffrey A.
• Application Number:
  US07/938,955
• Time in Patent Office: 546 Days
• Field of Search: 307/11, 307/31, 307/112, 307/113, 307/116, 307/125, 307/132 R, 307/139, 200/512, 200/600, 200/17 R, 200/52 R
• US Class Current: 307/116
• CPC Class Codes: H03K 17/9505 Constructional details
• CPC Class Codes: H03K 17/9645 Resistive touch switches

Abstract

A touch sensitive switching apparatus for controlling the operation of an electrical load is disclosed. The apparatus includes a programmable controller and a touch sensor assembly. The controller is connected to the electrical load and is programmable to provide a repeatable sequence to operate the load wherein each step of the sequence is initiated by touching two contact surfaces of the touch sensor assembly. The controller can also be configured to duplicate a momentary switch wherein the load is energized as long as the contact surfaces of the touch sensor assembly are connected. The touch sensor assembly can be mounted in a wall panel. The assembly includes a conductive housing with a conductive rod positioned therein. A first fastener secures the rod within the housing, while a second fastener secures the assembly to the wall panel.

Claims

1. A touch responsive apparatus for use in controlling an electrical load, the apparatus comprising:

conductive housing means having a first housing end and a second housing end, wherein the first housing end includes a first touch contact surface and stop means;

a conductive longitudinal member having a longitudinal axis disposed within the conductive housing means and a first member end having a second touch contact surface and a stop surface;

insulation means for substantially electrically insulating the conductive longitudinal member from the conductive housing means, the insulation means interposed between and engaging the stop surface and the stop means;

fastening means connected to the conductive longitudinal member to secure the first member end against the insulation means; and

circuit means electrically connected to the conductive housing means and the conductive longitudinal member, the circuit means responsive to substantially non-infinite resistance connected between the first contact surface and the second contact surface to selectively control operation of the electrical load.

2. The touch responsive apparatus as specified in claim 1 wherein the stop means is disposed within the conductive housing means.

3. The touch responsive apparatus as specified in claim 2 wherein the stop means comprises an inner flange.

4. The touch responsive apparatus as specified in claim 1 wherein the first touch contact surface is curved.

5. The touch responsive apparatus as specified in claim 4 wherein the first touch contact surface is curved outwardly from the first housing end.

6. The touch responsive apparatus as specified in claim 1 wherein the first housing end includes a detachable end cap.

7. The touch responsive apparatus as specified in claim 1 wherein the conductive longitudinal member includes a threaded portion, and the fastening means comprises a threaded member mating with the threaded portion.

8. The touch responsive apparatus as specified in claim 7 wherein the conductive longitudinal member comprises a rod having outwardly facing threads, and the threaded member comprises a nut having inwardly facing threads that mate with the outwardly facing threads.

9. The touch responsive apparatus as specified in claim 1 wherein the conductive housing means is disposed in an aperture of a panel, the first housing end having a flange portion to engage an outer surface of the panel substantially adjacent the aperture, and a second fastening means connected to the second housing end to engage a second outer surface of the panel.

10. The touch responsive apparatus as specified in claim 9 wherein the second housing end extends beyond the second outer surface of the panel and includes a threaded portion, and wherein the second fastening means comprises a second threaded member threadably mating with the threaded portion of the second housing end.

11. The touch responsive apparatus as specified in claim 10 wherein the second housing end includes outwardly facing threads and the second threaded member comprises a second nut.

12. The touch responsive apparatus as specified in claim 1 wherein the circuit means includes program means providing a sequence of repeatable steps to control operation of the electrical load, wherein each step represents a function of operation of the electrical load.

13. The touch responsive apparatus as specified in claim 12 wherein each step of the sequence of repeatable steps is sequenced from a previous step by substantially non-infinite resistance connected between the first contact surface and the second contact surface.

14. The touch responsive apparatus as specified in claim 12 wherein the electrical load comprises a plurality of electrical loads and each function of operation comprises a combination of the electrical loads to be energized, and wherein the circuit means includes means for selecting combinations of electrical loads for each step of the sequence of repeatable steps.

15. The touch responsive apparatus as specified in claim 12 wherein the circuit means includes means for selecting the number of steps in the sequence of repeatable steps is selectable.

16. The touch responsive apparatus as specified in claim 1 wherein the circuit means includes time delay means to operate the electrical load for a desired time period.

17. The touch responsive apparatus as specified in claim 1 wherein the circuit means includes disable means to selectively prevent operation of the electrical load.

18. A touch responsive apparatus for use in controlling an electrical load, the apparatus mounted within an aperture of a panel, the apparatus comprising:

a conductive housing having a first end portion and a second end portion, the first end portion having an inner flange, an outer flange and a first touch contact surface, the conductive housing disposed within the aperture wherein the outer flange engages an outer surface of the panel;

a conductive threaded rod disposed within the conductive housing, the threaded rod having a second touch contact surface and a stop surface;

insulation means for substantially electrically insulating the conductive threaded rod from the conductive housing, the insulation means interposed between the inner flange and the stop surface;

a fastening nut connected to the threaded rod to secure the stop surface against the insulation means;

fastening means connected to the second housing end to secure the outer flange against the outer surface of the panel; and

circuit means electrically connected to the conductive housing and the threaded rod, the circuit means responsive to substantially non-infinite resistance connected between the first contact surface and the second contact surface to selectively control operation of the electrical load.

19. The touch responsive apparatus as specified in claim 18 wherein the first end portion comprises a detachable end cap.

20. The touch responsive apparatus as specified in claim 19 wherein the second housing end portion extends beyond an outer surface of the panel and includes a threaded portion, and wherein the fastening means comprises a threaded member threadably mating with the threaded portion of the second housing end portion.

21. The touch responsive apparatus as specified in claim 20 wherein the second housing end portion includes outwardly facing threads and the threaded member comprises a second fastening nut.