Search and warning light system

• US 4,353,110 A
• Filed: 09/12/1980
• Issued: 10/05/1982
• Est. Priority Date: 09/12/1980
• Status: Expired due to Term

• Current Assignee: Richard D. Ellis
• Original Assignee: Richard D. Ellis
• Inventors: Ellis, Richard D.
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Application Number:
  US06/186,828
• Time in Patent Office: 753 Days
• Field of Search: 362/35, 362/66, 362/230, 362/231, 362/233, 362/240, 362/241, 362/252, 362/272
• US Class Current: 362/35
• CPC Class Codes: B60Q 1/245 Searchlights, e.g. adjustable from within the vehicle adjustable headlights B60Q1/06
• CPC Class Codes: B60Q 1/2611 Indicating devices mounted on the roof of the vehicle
• CPC Class Codes: F21S 41/00 Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps reversing lights F21S43/00
• CPC Class Codes: F21S 41/28 Cover glass
• CPC Class Codes: F21S 41/321 the reflector being a surface of revolution or a planar surface, e.g. truncated
• CPC Class Codes: F21S 41/43 characterised by the shape thereof
• CPC Class Codes: F21S 41/675 by moving reflectors
• CPC Class Codes: F21S 43/26 Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
• CPC Class Codes: F21S 43/31 Optical layout thereof
• CPC Class Codes: F21S 43/40 characterised by the combination of reflectors and refractors
• CPC Class Codes: F21V 21/30 Pivoted housings or frames

Abstract

A search and warning light system is disclosed, in its preferred forms, as including a light assembly having first and second lamp assemblies. The light assembly is mounted about a vertical axis for rotation in either a clockwise or counterclockwise direction and the lamp assemblies are mounted to the light assembly about a horizontal axis for rotation in either an upward or downward direction. A control module located in a remote location provides appropriate electrical input to the motors controlling the rotation of the light assembly and the lamp assemblies, and to the lightbulbs included within the lamp assemblies. The motor for rotating the light assembly is located exteriorly of the light assembly in a first embodiment and is located interiorly of the light assembly in a second embodiment. The lamp assemblies can be independently rotated by providing separate motors and drive mechanisms or can be rotated together by rotatably relating the lamp assemblies.

Claims

1. A search and warning light system comprising, in combination:

at least a first lamp assembly for emitting a beam of light;

first means for rotating the first lamp assembly about a horizontal axis;

second means for rotating the first lamp assembly about a vertical axis; and

third means for providing electric connection to the lamp assembly and the first and second means allowing the lamp assembly to be used as a search light with the direction of the beam of light being changeable by slow rotation of the lamp assembly about its vertical and/or horizontal axis by the first and second means and allowing the lamp assembly to be used as a warning light by rotating the lamp assembly about its vertical and/or horizontal axis by the first and second means.

2. The search and warning light system of claim 1 further comprising, in combination:

a second lamp assembly for emitting a beam of light, wherein the first means also rotates the second lamp assembly about the horizontal axis, and wherein the second means also rotates the second lamp assembly about the vertical axis.

3. The search and warning light system of claim 2 wherein the first means allows the independent rotation of the first and second lamp assemblies about the horizontal axis allowing the first lamp assembly to be used as a search light with the direction of the beam of light being changable by slow rotation of the first lamp assembly about its vertical and/or horizontal axis by the first and second means and allowing the second lamp assembly to be simultaneously used as a warning light by rotating the lamp assembly about the horizontal axis by the first means.

4. The search and warning light system of claim 3 wherein the first means comprises, in combination:

a first drive wheel formed on the first lamp assembly;

means for rotating the first drive wheel comprising a first motor having a drive shaft, with the drive shaft of the first motor being in driving engagement with the first drive wheel;

a second drive wheel formed on the second lamp assembly; and

means for rotating the second drive wheel comprising a second motor having a drive shaft, with the drive shaft of the second motor being in driving engagement with the second drive wheel.

5. The search and warning light system of claim 3 wherein the first means comprises, in combination:

a first drive wheel formed on the first lamp assembly and having gear teeth;

means for rotating the first drive wheel comprising a first motor having a drive shaft with a drive gear in gearing engagement with the gear teeth of the first drive wheel;

a second drive wheel formed on the second lamp assembly and having gear teeth; and

means for rotating the second drive wheel comprising a second motor having a drive shaft with a drive gear in gearing engagement with the gear teeth of the second drive wheel.

6. The search and warning light system of claim 2 wherein the first means comprises, in combination:

a first drive wheel formed on the first lamp assembly and having gear teeth;

a second drive wheel formed on the second lamp assembly and having gear teeth;

means for rotatably relating the first and second drive wheels comprising a rotatable shaft having a first sprocket located on its first end and a second sprocket located on its second end, with the first sprocket being in gearing engagement with the gear teeth of the first drive wheel and with the second sprocket of the shaft being in gearing engagement with the gear teeth of the second drive wheel; and

means for rotating the first drive wheel comprising a first motor having a sprocket in gearing engagement with the gear teeth of the first drive wheel.

7. The search and warning light system of claim 2 wherein the first means comprises, in combination:

a first drive wheel formed on the first lamp assembly and having gear teeth;

a second drive wheel formed on the second lamp assembly and having gear teeth;

means for rotatably relating the first and second drive wheels comprising a shaft having a first sprocket located on its first end and a second sprocket located on its second end, with the first sprocket being in gearing engagement with the gear teeth of the first drive wheel and with the second sprocket being in gearing engagement with the gear teeth of the second drive wheel; and

means for rotating the shaft including a motor having a drive shaft with a sprocket in gearing engagement with the shaft.

8. The search and warning light system of claim 1 wherein the second means comprises, in combination:

a vertical shaft, with the lamp assembly being in a nonrotatable relation with the shaft; and

means for rotating the shaft.

9. The search and warning light system of claim 8 further comprising, in combination:

a vertical post; and

a light assembly rotatably mounted on the post, with the lamp assembly being mounted in the light assembly, and with the shaft passing through a bore formed in the post and being in a nonrotatable relation with the light assembly.

10. The search and warning light system of claim 1 wherein the second means comprises, in combination:

a vertical, stationary shaft, with the lamp assembly being in a rotatable relation with the shaft.

11. The search and warning light system of claim 10 further comprising, in combination:

a light assembly being rotatably mounted about the shaft, with the lamp assembly being mounted in the light assembly; and

a motor mounted to the light assembly, with the motor being in gearing engagement with the shaft.

12. The search and warning light system of claim 11 further comprising, in combination:

a vertical post, with the light assembly being rotatably mounted on the post and with the shaft passing through a bore formed in the post.

13. The search and warning light system of claim 9 or 12 wherein the third means includes a commutator assembly comprising, in combination:

contact rings encircling the vertical post; and

brush assemblies mounted to the light assembly in sliding engagement with the contact rings.