Actuator alternating indicator light

• US 10,475,605 B2
• Filed: 03/26/2019
• Issued: 11/12/2019
• Est. Priority Date: 11/02/2016
• Status: Active Grant

• Current Assignee: Leviton Manufacturing Company Incorporated
• Original Assignee: Leviton Manufacturing Company Incorporated
• Inventors: Jansen, Ronald, Lombardi, Alfred, Kevelos, Adam
• Primary Examiner(s): Saeed, Ahmed M
• Assistant Examiner(s): Caroc, Lheiren Mae A
• Application Number:
  US16/365,199
• Publication Number:
  US 20190221386A1
• Time in Patent Office: 231 Days
• Field of Search: 200310-313, 200315
• CPC Class Codes: H01H 2071/042 with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
• CPC Class Codes: H01H 2219/062 Light conductor
• CPC Class Codes: H01H 23/003 with more than one electrically distinguishable condition in one or both positions
• CPC Class Codes: H01H 23/025 Light-emitting indicators
• CPC Class Codes: H01H 23/145 the actuating surface having two slightly inclined areas extending from the middle outward
• CPC Class Codes: H01H 23/162 incorporating links interconnecting tumbler and contact arm
• CPC Class Codes: H01H 9/161 comprising light emitting elements
• CPC Class Codes: H01H 9/182 Illumination of the symbols or distinguishing marks H01H9/181 takes precedence
• CPC Class Codes: H05B 47/10 Controlling the light source

Abstract

An exemplary embodiment of a load control device with a light indicator is disclosed. The load control device may include an actuator assembly and a light source. The actuator assembly may include a frame, a light pipe, and an actuator having two surfaces. The light pipe may be arranged within the actuator and include first and second legs. The first leg may extend towards the first surface, and the second leg may extend towards the second surface. When the actuator is in a first position, the light source may be optically aligned with one of the first and second legs; and, when the actuator is in a second position, the light source may be optically aligned with the other of the first and second legs. When the light source is illuminated, the light pipe may direct the light towards the respective surface of the actuator.

Claims

1. An electrical load control device comprising:

a. an actuator assembly comprising;

i. a frame;

ii. an actuator pivotally coupled to the frame and moveable between a first position and a second position, the first and second positions alternately corresponding to ON and OFF states of an electrical load, and the actuator including first and second surfaces;

iii. a light pipe arranged at least partially within the actuator, the light pipe including;

a body having a first light entry surface and a second light entry surface, the first and second light entry surfaces arranged at an angle with respect to one another, the angle being less than 180 degrees;

a first leg having a proximal end and a distal end, the proximal end originating from the first light entry surface and extending towards the first surface of the actuator;

a second leg having a proximal end and a distal end, the proximal end originating from the second light entry surface and extending towards the second surface of the actuator; and

b. a single light source configured to illuminate when the electrical load is in at least one of the ON and the OFF state, wherein when the actuator is in the first position, the single light source is optically aligned with one of the first and second entry surfaces, and wherein when the actuator is in the second position, the single light source is optically aligned with the other of the first and second entry surfaces;

wherein when the single light source is illuminated, the respective leg of the first and second legs of the light pipe directs a substantial portion of the light emitted from the single light source to the respective first and second surfaces of the actuator.

2. The electrical load control device of claim 1, wherein the actuator is a toggle switch, and the first and second surfaces are first and second toggle shoulders, respectively.

3. The electrical load control device of claim 2, wherein the first and second toggle shoulders each include a recess.

4. The electrical load control device of claim 1, wherein the actuator is a rocker, and the first and second surfaces are first and second ends of the rocker, respectively.

5. The electrical load control device of claim 1, wherein the actuator assembly further comprises a resilient member, wherein the resilient member is at least partially aligned with the single light source.

6. The electrical load control device of claim 1, wherein the electrical load control device is one of a single pole switch device, a three-way switch device, and a four-way switch device.

7. The electrical load control device of claim 1, wherein the first and second surfaces each include an inner surface and an outer surface, and wherein the respective leg of the light pipe is configured to direct the light from the single light source towards the respective inner surface, and wherein the light is transmitted through the respective inner surface and emitted from at least a portion of the respective outer surface.

8. The electrical load control device of claim 1, wherein the light pipe further includes first and second bearing surfaces, and the actuator includes first and second receiving surfaces, the first and second receiving surfaces being arranged and configured to receive the respective bearing surfaces.

9. The electrical load control device of claim 1, wherein the actuator assembly is releasably coupled to the electrical load control device.

10. The electrical load control device of claim 1 further comprising a printed circuit board mounted therein, wherein the single light source is electrically coupled to the printed circuit board.

11. The electrical load control device of claim 1 further comprising an electrical switch configured to selectively switch the electrical load between the ON state and the OFF state, and wherein the electrical switch is one of a microswitch, a tact switch, a push-push switch, a mechanical switch, and a relay switch.

12. A switch actuator assembly comprising:

a. a frame;

b. an actuator pivotally coupled to the frame and moveable between a first position and a second position, the first and second positions alternately corresponding to ON and OFF states of an electrical load, the actuator including first and second ends, the first and second ends each having an inner surface and an outer surface;

c. a single light source;

d. a light pipe including;

a body having a first light entry surface and a second light entry surface, the first and second light entry surfaces arranged at an angle with respect to one another, the angle being less than 180 degrees;

a first leg having a proximal end and a distal end, the proximal end originating from the first light entry surface and extending towards the first surface of the actuator;

a second leg having a proximal end and a distal end, the proximal end originating from the second light entry surface and extending towards the second surface of the actuator; and

wherein when light is emitted from the single light source, a substantial portion of the light is directed by one of the first and second legs of the light pipe onto at least a portion of the inner surface of the respective first and second ends of the actuator and emits from at least a portion of the respective outer surface of the respective end of the actuator.

13. The switch actuator assembly of claim 12, wherein the actuator is a toggle switch, and the first and second ends include first and second toggle shoulders, respectively.

14. The switch actuator assembly of claim 12, wherein the actuator is a rocker.

15. The switch actuator assembly of claim 12 further comprising a resilient member, wherein the resilient member is at least partially aligned with the light source and adjacent to the light pipe.

16. The switch actuator assembly of claim 12, wherein the switch is one of a single pole switch device, a three-way switch device, and a four-way switch device.

17. An electrical load control device comprising:

a. an actuator assembly comprising;

i. a frame;

ii. an actuator pivotally coupled to the frame and moveable between a first position and a second position, the first and second positions alternately corresponding to ON and OFF states of an electrical load;

iii. a light pipe arranged at least partially within the actuator, the light pipe including;

a body having a first light entry surface and a second light entry surface, the first and second light entry surfaces arranged at an angle with respect to one another, the angle being less than 180 degrees;

a first leg having a proximal end and a distal end, the proximal end originating from the first light entry surface and extending towards the first surface of the actuator;

a second leg having a proximal end and a distal end, the proximal end originating from the second light entry surface and extending towards the second surface of the actuator; and

b. a single light source configured to illuminate when the electrical load is in at least one of the ON and the OFF state, wherein when the actuator is in the first position, the single light source is optically aligned with one of the first and second light entry surfaces of the light pipe, and wherein when the actuator is in the second position, the single light source is optically aligned with the other of the first and second light entry surfaces of the light pipe.

18. The electrical load control device of claim 17, wherein the actuator is a toggle switch, and the first and second surfaces are first and second toggle shoulders, respectively.

19. The electrical load control device of claim 17, wherein the actuator is a rocker.

20. The electrical load control device of claim 17 further comprising a resilient member, wherein the resilient member is at least partially aligned with the light source and adjacent to the light pipe.