Electrical switch and dimmer control device

• US 6,005,308 A
• Filed: 03/31/1993
• Issued: 12/21/1999
• Est. Priority Date: 03/31/1993
• Status: Expired due to Term

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Electronics Company Incorporated (Lutron Electronics)
• Inventors: Swain, James Edgar, Bryde, Gary William, Woodman, John Roderick, Cieri, Mark Andrew
• Primary Examiner(s): PALADINI, ALBERT WILLIAM
• Application Number:
  US08/040,423
• Time in Patent Office: 2,456 Days
• Field of Search: 200/335, 200/339, 200/452, 200/454, 200/457, 200/458, 307/140, 307/141, 307/115, 307/157, 307/125, 307/139, 323/905
• US Class Current: 307/157
• CPC Class Codes: H01H 23/08 Bases; Stationary contacts mounted thereon
• CPC Class Codes: H01H 23/14 Tumblers
• CPC Class Codes: H01H 23/20 having snap action
• CPC Class Codes: H01H 3/0213 Combined operation of electric switch and variable impedance, e.g. resistor, capacitor H01H9/061 takes precedence
• CPC Class Codes: H05B 39/00 Circuit arrangements or apparatus for operating incandescent light sources structurally associated with the incandescent lamps H01K1/62
• CPC Class Codes: H05B 39/08 by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices in converters H02M5/00; with regulation G05F1/44
• CPC Class Codes: Y10S 323/905 Lamp dimmer structure

Abstract

An electrical switch and dimmer device for controlling current applied to a load comprises a bezel assembly (16) which includes a bezel housing (17), a switch actuator (18) and a dimmer actuator (19). The bezel housing supports both switch and dimmer actuators for respective movement between first and second positions, whereby the on/off state of an electrical switch adapted to apply power to an electrical load (e.g. an electric light or fan) is controllable, as is the level of power applied to the load by the switch. The bezel housing and the switch/dimmer actuators which it supports comprise a self-contained assembly which can be releasably connected to a yoke member (20) on which an electrical switch and dimmer circuitry are mounted. Preferably, the switch actuator comprises a paddle-type actuator (18) which is pivotally mounted between a pair of opposing side walls (48A, 48B) of the bezel housing, and the dimmer actuator comprises a slidably mounted member (21) which is guided by a rectilinear slot (23) formed in one of the bezel walls adjacent an edge of the paddle actuator.

Claims

1. A switch and dimmer device for controlling electrical power applied to a load, said device comprising:

(a) a yoke having at least one mounting opening therein for connecting the yoke to an electrical wall box;

(b) an electrical switch adapted to selectively apply power to the load from a power source, said electrical switch being supported by said yoke and having a switch actuator which is selectively operable to control the on/off state of said electrical switch;

(c) a dimmer adapted to control the level of power applied to the load, said dimmer being supported by said yoke and having a dimmer actuator which is selectively operable to control the level of power applied to the load by the switch;

(d) a backcover secured to said yoke, the backcover and yoke cooperating to form an enclosure to house said electrical switch and said dimmer; and

(e) a bezel assembly comprising;

(i) a bezel housing;

(ii) a first manually-manipulatable member movably mounted directly on and retained by said bezel housing and operatively coupled to said switch actuator when said bezel assembly is connected to said yoke, for selectively controlling the operation of said switch actuator; and

(iii) a second manually-manipulatable member movably mounted directly on and retained by said bezel housing and operatively coupled to said dimmer actuator when said bezel assembly is connected to said yoke, for selectively controlling the operation of said dimmer actuator, said bezel assembly being removable with respect to said yoke while said yoke remains secured to said backcover.

2. The apparatus as defined by claim 1 wherein said first manually-manipulatable member comprises a paddle pivotally mounted on said bezel housing and having a tab member which engages said switch actuator during pivotal movement of said manually-manipulatable member to actuate said electric switch.

3. The apparatus as defined by claim 1 wherein said second manually-manipulatable member is slidably mounted on said bezel housing.

4. The apparatus as defined by claim 1 wherein said dimmer device comprises a variable resistance device, and wherein said dimmer actuator comprises a slidable member, the position thereof controlling the resistance of said variable resistance device.

5. The apparatus as defined by claim 4 wherein said second manually manipulatable member is slidably mounted on said bezel housing and includes means for engaging said slidable member for controlling the position thereof.

6. The apparatus as defined by claim 1 wherein said bezel member comprises a wall which surrounds the perimeter of said first manually-manipulatable member.

7. The apparatus as defined by claim 6 wherein said wall defines a slot in which said second manually-manipulatable member is movable.

8. The apparatus as defined by claim 6 wherein said yoke supports an electric lamp for illuminating a clearance space between said wall and first manually-manipulatable member, whereby the location of the latter is visible in the dark.

9. The apparatus as defined by claim 8 wherein a surface of said first manually-manipulatable member and a surface of said bezel housing are adapted to diffusely reflect radiation energy emitted by said electric lamp to enhance the illumination of said clearance space.

10. In an apparatus for controlling the current applied to an electric lamp to control the on/off state and intensity of the lamp, said apparatus comprising:

(a) a yoke having at least one mounting opening therein for connecting the yoke to an electrical wall box;

(b) an electrical switch adapted to selectively apply current to the lamp from a power source, said switch being supported by said yoke and having a movable actuator for controlling the on/off state of said electrical switch;

(c) a dimmer mechanism adapted to control the intensity of the lamp, said dimmer mechanism being supported by said yoke and having a movable dimmer actuator for controlling the level of current applied to the lamp by the switch based on the position of said movable dimmer actuator;

the improvement comprising;

(d) a backcover secured to said yoke, the backcover and yoke cooperating to form an enclosure to house said electrical switch and said dimmer, and

(d) a bezel assembly comprising a bezel housing which directly movably supports and surrounds a first movable member for controlling the operation of said switch actuator when said bezel assembly is connected to said yoke, said bezel housing further directly movably supporting a second movable member for selectively controlling the position of said movable dimmer actuator when said bezel assembly is connected to said yoke, the first and second movably members being retained by the bezel housing, said bezel assemblys being removable from said yoke while said yoke remains secured to said back cover.

11. The apparatus as defined by claim 10 wherein said first movable member comprises a paddle pivotally mounted on said bezel housing.

12. The apparatus as defined by claim 10 wherein said second movable member is slidably mounted on said bezel housing.

13. The apparatus as defined by claim 10 wherein said first movable member comprises a paddle member pivotally mounted between opposing walls of said bezel housing.

14. The apparatus as defined by claim 10 wherein said electrical switch is a microswitch.

15. The apparatus as defined by claim 10 wherein said electrical switch comprises a leaf switch having a fixed contact, a movable contact, and a leaf spring for biasing the movable contact relative to the fixed contact, said movable actuator being operatively connected to the movable contact to control the position thereof.

16. The apparatus as defined by claim 10 wherein said bezel housing comprises a wall which surrounds the perimeter of said first movable member.

17. The apparatus as defined by claim 16 wherein said second movable member comprises a tab member slidably mounted in a slot defined by said wall of said bezel housing.