Full color parapet lamp for road or bridge

• US 6,234,647 B1
• Filed: 07/28/1999
• Issued: 05/22/2001
• Est. Priority Date: 08/14/1998
• Status: Expired due to Fees

• Current Assignee: Limin Liu
• Original Assignee: Limin Liu
• Inventors: Liu, Limin
• Primary Examiner(s): O'Shea, Sandra
• Assistant Examiner(s): Zeade, Bertrand
• Application Number:
  US09/362,977
• Time in Patent Office: 664 Days
• Field of Search: 362/145, 362/153, 362/240, 362/225, 362/219, 362/252, 362/245, 362/246, 362/231, 362/800, 362/153.1, 313/570, 313/487, 313/17, 313/110, 313/25, 313/112, 313/26, 313/111, 313/113, 313/315, 313/169.1, 313/169.3, 313/493, 313/634, 313/318.02, 313/318.04, 313/635, 313/573
• US Class Current: 362/235
• CPC Class Codes: E01D 19/103 Parapets, railings E01D19/005 takes precedence; balustrades in general E04F11/18; Guard barriers or road-bridges in general E01F15/00
• CPC Class Codes: F21S 10/06 flashing, e.g. with rotating reflector or light source signalling lighting devices mounted on vehicles B60Q1/26
• CPC Class Codes: F21S 4/20 with light sources held by or within elongate supports
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 23/0435 activated by remote control means
• 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 2111/02 for roads, paths or the like
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

The invention relates to a tubular lamp, particularly relates to a high-intensity parapet lamp for road or bridge, which can display various colors and is controlled by computer program. The cavity of the lamp is sealed with soldered illuminants and light-reflecting circuit board; the power supply wires pass through the inner tube and the ends of the power supply wires are connected to multi-contact connector assemblies. The lamp is lit up at night and is controlled by computer program to produce a flowing effect which can indicate the direction.

Claims

1. A multicolor parapet lamp, comprising:

an outer light-transmissive tube having first and second ends;

an inner tube disposed within the outer tube and having first and second ends;

sealing brackets respectively engaging the first and second ends of the outer and inner tubes so as to define an airtight sealed cavity between the outer and inner tubes;

plural illuminants disposed in the cavity on circuit boards supported on the inner tube;

electrical leads operatively connected to the illuminants and extending within the inner tube and through a sealing bracket so as not to interfere with the airtight seal; and

the inner tube being light-reflective so as to direct illumination from the illuminants outwardly toward the outer tube.

2. The full color parapet lamp in accordance with claim 1, characterized in that the outer tube is made of red light-transmissive material with red illuminants inside or of white light-transmissive material with white illuminants inside.

3. The full color parapet lamp in accordance with claim 1, characterized in that said illuminants are of homochromatic or tricolor bulbs, light-emitting diodes (LED), other light sources, or their combination.