Architectural lighting apparatus

• US 4,600,975 A
• Filed: 01/25/1984
• Issued: 07/15/1986
• Est. Priority Date: 01/25/1984
• Status: Expired due to Fees

• Current Assignee: James R. Roberts
• Original Assignee: James R. Roberts
• Inventors: Roberts, James R.
• Primary Examiner(s): Nelson, Peter A.
• Application Number:
  US06/573,639
• Time in Patent Office: 902 Days
• Field of Search: 362/145, 362/147, 362/240, 362/223, 362/225, 362/310, 362/306, 362/368, 362/151, 362/249, 362/311, 362/374, 362/375
• US Class Current: 362/147
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 21/08 Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
• 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: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes

Abstract

An indirect lighting assembly consisting of a housing structure and low voltage light tubing for retention therein, said housing structure being a unitarily extruded body having an anchor tab portion extending perpendicularly into a spacer portion and terminating in a light tube housing portion having an open area directing light generally perpendicular to the plane of said spacer portion.

Claims

1. An indirect lighting fixture comprising:

an elongated tubular light source having uniform cross-section;

a unitarily formed light housing structure having an anchor tab portion for flat affixure to associated planar structure, a spacer portion extending generally perpendicularly from one edge of said anchor tab portion, and a uniform elongated housing portion extending from said spacer portion distal from said anchor tab portion and receiving said light source securely therein, said housing portion defining an elongated volume open at generally one-quarter of the circumphery with said open portion directed perpendicular to said spacer portion.

3. A fixture as set forth in claim 1 wherein:

said housing portion defines a volume having round cross-section.

4. A fixture as set forth in claim 1 wherein said light source comprises:

uniform elongated tubing formed of transparent thermoplastic tubing; and

a string of low-voltage responsive lamps having a selected number of lamps per unit length disposed through said elongated tubing.

5. A fixture as set forth in claim 4 wherein:

said housing portion defines a volume having square cross-section.

6. A fixture as set forth in claim 4 wherein:

said housing portion defines a volume having round cross-section.

7. A fixture as set forth in claim 1 wherein said light housing structure comprises:

an extrusion of unitarily formed, light reflective thermoplastic material.

2. A fixture as set forth in claim 2 wherein:

said housing portion defines a volume having square cross-section.

8. An indirect lighting mounting structure for receiving elongate, low-voltage light tubing, comprising:

a unitarily formed structure having an anchor tab portion for flat affixure to associated planar structure, a spacer portion extending generally perpendicularly from one edge of said anchor tab portion, and a uniform elongated housing portion extending from said spacer portion distal from said anchor tab portion for receiving said light tubing securely therein, said housing portion defining an elongated volume open at approximately one-quarter of the circumphery with said open portion directed perpendicular to said spacer portion.

9. A fixture as set forth in claim 8 wherein:

said housing portion defines a volume having square cross-section.

10. A fixture as set forth in claim 8 wherein:

said housing porion defines a volume having round cross-section.

11. An elongate indirect lighting mounting structure comprising:

a unitarily formed, partially reflective elongate opaque housing structure having an extrusion of unitarily formed, light reflective thermoplastic material, an anchor tab portion for flat affixure to associated types of ceiling, cove and base molding and a spacer portion extending generally perpendicularly from one edge of said anchor tab portion a distance sufficient to eliminate uneven brightness and glare;

a uniform elongated housing portion distal from said anchor tab portion for receiving said light tubing securely therein, said housing portion defining an elongated volume having square cross-section open at approximately one-quarter of the circumphery with said open portion directed perpendicular to said spacer portion; and

an elongated low voltage tubular light source formed of transparent thermoplastic tubing, having uniform cross-section, having a string of low voltage responsive lamps with a selected number of lamps per unit length disposed through said elongated tubing, said tubing being coactively secured within said housing structure to prevent direct viewing.

12. A fixture as set forth in claim 11 wherein:

said housing portion defines a volume having round cross-section.