RAIL LIGHT

• US 20100091494A1
• Filed: 12/24/2008
• Published: 04/15/2010
• Est. Priority Date: 10/10/2008
• Status: Active Grant

• Current Assignee: Korrus Incorporated (MKD Electric, Inc.)
• Original Assignee: Tempo Industries, LLC
• Inventors: Pearson, Dennis, Horwitz, Terry, Horvath, Richard
• Granted Patent: US 8,002,426 B2
• Time in Patent Office: Days
• US Class Current: 362/249.02
• CPC Class Codes: E04F 11/1834 with adjustable angle, e.g. pivotal connections
• CPC Class Codes: E04F 2011/1872 illuminated
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 19/0045 by tongue and groove connections, e.g. dovetail interlocking means fixed by sliding
• CPC Class Codes: F21V 21/22 telescopic
• CPC Class Codes: F21V 33/006 General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
• CPC Class Codes: F21W 2111/027 for indicating kerbs, steps or stairs
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A stair rail light attachable between first and second vertical stair rail posts and having an elongated central housing whose interior mounts an extrusion designed to hold and position a plurality of LED carrier members wherein the housing slidably engages respective mounting plugs pivotally attached to respective stair rail posts, thereby permitting the length of the rail light to be adjusted in the field.

Claims

1. A light fixture comprising:

a plurality of LED carrier members;

an elongated central housing having a plurality of axially-running projections on an inside surface thereof, said inside surface terminating in first and second lower edges, each first and second lower edge having a respective inwardly projecting lip;

first and second end plugs for insertion into the opposite ends of said housing, each end plug having an outer surface including a plurality of axially-running grooves each positioned to slidably receive and mate with a respective one of said axially-running projections, said outer surface further having first and second recesses formed respectively along first and second lower edges thereof, said first and second recesses each being sized and dimensioned to slidably receive and mate with a respective one of said inwardly projecting lips; and

an elongated extrusion positioned within a portion of the interior of said housing, said extrusion including a plurality of outer surfaces shaped and dimensioned such that said extrusion snap-fits into said housing, said extrusion further including a plurality of interior projections disposed to position and retain each of said plurality of LED carrier members.

2. The light fixture of claim 1 wherein said plurality of interior projections comprise:

a central depending projection having an end; and

first and second depending projections positioned on either side of said central depending projection, each of said first and second depending projections having an end shaped to retain an edge of one of said LED carrier members.

3. The light fixture apparatus of claim 2 wherein each of said LED carrier members comprises an LED mounting surface and a channel of Y-shaped cross-section.

4. The light fixture apparatus of claim 3 wherein each said channel of Y-shaped cross-section engages the end of said depending central projection.

5. The light fixture apparatus of claim 4 wherein each LED mounting surface is disposed at a selected angle to the vertical.

6. The light fixture apparatus of claim 5 wherein said angle is 20 degrees.

7. The light fixture apparatus of claim 5 wherein a first LED carrier member is positioned to direct light toward one side of said housing and a second LED carrier member is disposed to direct light toward the other side of said housing.

8. The light fixture apparatus of claim 1 wherein the slidable mating of said axially-running grooves with said axially-running projection and the slidable engagement of said first and second lower edges with said first and second recesses allows the length of the light fixture to be adjusted in the field to adapt to varying dimensional requirements.

9. The light fixture apparatus of claim 1 further comprising a pivot plate for mounting one of said end plugs to a stair rail, said pivot plate including a front surface having a plurality of mounting holes, a circular opening for passing an electrical cable, and first and second tabs projecting therefrom for receiving a pivot pin.

10. The light fixture apparatus of claim 9 wherein said pivot plate further comprises an inner adapter plate positioned behind said front surface to strengthen the structure.

11. The light fixture apparatus of claim 10 wherein said pivot plate and said adapter plate are molded as a single unitary part.

12. Radius of inner adapter plate and front plate.

13. A light fixture comprising:

a plurality of LED carrier members;

an elongated central housing having a plurality of axially-running projections on an inside surface thereof, said inside surface terminating in first and second lower ends;

first and second end plugs for insertion into the opposite ends of said housing, each end plug having an outer surface including a plurality of axially-running grooves each positioned to slidably receive a respective one of said axially-running projections, said outer surface having first and second lower ends, the first and second lower ends of said housing and first and second lower ends of said plugs being shaped to respectively slidably mate with one another; and

an elongated extrusion positioned within a portion of the interior of said housing, said extrusion being shaped and dimensioned such that said extrusion snap-fits into said housing, said extrusion further mounting each of said plurality of LED carrier members.

14. The light fixture of claim 13 wherein said plurality of interior projections comprise:

a central depending projection having an end; and

first and second depending projections positioned on either side of said central depending projection, each of said first and second depending projections having an end shaped to retain an edge of one of said LED carrier members.

15. The light fixture apparatus of claim 14 wherein each of said LED carrier members comprises an LED mounting surface and a channel of Y-shaped cross-section.