Non-battery powered portable lamp

• US 6,588,918 B1
• Filed: 08/18/2001
• Issued: 07/08/2003
• Est. Priority Date: 08/18/2001
• Status: Expired due to Fees

• Current Assignee: Hampton-Cadre, Inc.
• Original Assignee: Hampton-Cadre, Inc.
• Inventors: Millar, Mark A.
• Primary Examiner(s): LEE, Y MY QUACH
• Application Number:
  US09/931,999
• Time in Patent Office: 689 Days
• Field of Search: 362/157, 362/159, 362/171, 362/192, 362/193, 362/205, 362/208, 310/73
• US Class Current: 362/192
• CPC Class Codes: F21L 13/06 with mechanical drive, e.g. spring
• CPC Class Codes: F21Y 2101/00 Point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A portable non-battery operated lamp has a spring wound up by hand for operation. A releasable lever mounted on the lamp handle swings outwardly and can be rotated to wind up the spring. A rocker switch assembly is moved to an ON position to release the bias of the spring thereby moving a gear train operatively connected to a generator for energizing a LED assembly. The switch can be moved to an OFF position to conserve spring bias prior to full relief of the spring.

Claims

1. A portable hand-operated lamp comprising:

a housing, a handle having a lever member rotatably mounted on the housing, a spring, the lever member connected to means rotatable to wind the spring when the lever member is wound in a first direction, a gear train connected to the spring, a generator connected to the gear train, light emitting means connected to the generator, and means operable to selectively prevent release of spring bias whereby upon release of spring bias the gear train moves by which an electrical current is generated by the generator to energize the light emitting means, the means operable to selectively prevent release of spring bias including a center-pivoted lever moveable into engagement with the means rotatable to wind the spring.

2. The lamp of claim 1 wherein:

the means rotatable to wind the spring includes a vertical gear having ratchet teeth cooperating with teeth of a vertical gear mate.

6. The lamp of claim 1 wherein:

the light emitting means is a light-emitting diode.

3. A portable hand-operated lamp comprising:

a housing, a handle having a lever member rotatably mounted on the housing, a spring, the lever member connected to means rotatable to wind the spring when the lever member is wound in a first direction, a gear train connected to the spring, a generator connected to the gear train, light emitting means connected to the generator, and means operable to selectively prevent release of spring bias whereby upon release of spring bias the gear train moves by which an electrical current is generated by the generator to energize the light emitting means, the means rotatable to wind the spring including a vertical gear having ratchet teeth cooperating with teeth of a vertical gear mate, the vertical gear mate having at least one radially extending member engaging the means operable to selectively prevent release of spring bias to prevent rotation of the vertical gear mate.

4. A portable hand-operated lamp comprising:

a housing, a handle having a lever member rotatably mounted on the housing, a spring, the lever member connected to means rotatable to wind the spring when the lever member is wound in a first direction, a gear train connected to the spring, a generator connected to the gear train, light emitting means connected to the generator, and means operable to selectively prevent release of spring bias whereby upon release of spring bias the gear train moves by which an electrical current is generated by the generator to energize the light emitting means, the lever member being pivotally attached to the means rotatable to wind the spring allowing the lever member to pivot away from the handle to wind up the spring and pivot toward the handle to store the lever member when not used to wind up the spring.

5. A portable hand-operated lamp comprising:

a housing, a handle having a lever member rotatably mounted on the housing, a spring, the lever member connected to means rotatable to wind the spring when the lever member is wound in a first direction, a gear train connected to the spring, a generator connected to the gear train, light emitting means connected to the generator, and means operable to selectively prevent release of spring bias whereby upon release of spring bias the gear train moves by which an electrical current is generated by the generator to energize the light emitting means, the handle having a groove accommodating the lever member.

7. A portable hand-operated lamp comprising:

a generally rectangular housing having a forward end accommodating light emitting means, a top handle having lever means pivotally mounted on the housing and moveable from a first closed position to a second open position, spring means, the lever means connected to drive means rotatable to wind the spring means, the lever means rotatable to move the drive means and wind the spring means when the lever means is in the second open position, a gear train connected to the spring means, a generator connected to the gear train, the light emitting means connected to the generator whereby upon movement of the gear train the generator generates an electrical current causing the light emitting means to emit light, and switch means having a locking member moveable into engagement with the drive means to selectively prevent release of spring bias and prevent movement of the gear train prior to full relief of spring bias.

8. The lamp of claim 7 wherein:

the drive means rotatable to wind the spring includes a vertical gear having ratchet teeth cooperating with teeth of a vertical gear mate.

9. The lamp of claim 8 wherein:

the vertical gear mate has an upwardly projecting collar located adjacent the vertical gear to minimize lateral motion of the vertical gear relative to the vertical gear mate.

10. The lamp of claim 7 wherein:

the locking member has a first surface deflecting the drive means when the drive means is rotated in a first direction to wind the spring means, and a second surface engaging the drive means to prevent rotation of the drive means in a second direction opposite from the first direction.

11. The lamp of claim 10 wherein:

the drive means has at least one radially extending member engaging the second surface of the locking member to prevent rotation of the drive means in the second direction.

12. The lamp of claim 11 including:

means releasably holding the lever means on the handle.

13. The lamp of claim 7 wherein:

the lever means is pivotally attached to the housing allowing the lever means to pivot away from the handle to wind up the spring and pivot toward the handle to store the lever means when not used to wind up the spring.

14. The lamp of claim 7 wherein:

the light emitting means is a light-emitting diode.

15. A method of storing spring bias with a spring coupled to a driven gear, the driven gear being engageable with a locking member and cooperating with a drive gear connected to a lever member mounted on a housing for a gear train connected to a generator for generating an electrical current to energize a light-emitting assembly comprising:

pivoting the lever member away from the housing, rotating the lever member to rotate the drive gear and driven gear in a first direction to wind the spring, locating the locking member in engagement with the driven gear to prevent rotation of the driven gear in a second direction to selectively prevent release of spring bias, moving the locking member out of engagement with the driven gear to allow rotation of the driven gear in the second direction thereby selectively releasing spring bias to move gear train by which an electrical current is generated by the generator to energize the light emitting assembly.

16. The method of claim 15 including:

permitting rotation of the driven gear in the first direction and prevent rotation of the driven gear in the second direction when the locking member is located in engagement with the driven gear.

17. The method of claim 15 including:

deflecting the locking member upon rotation of the driven gear in the first direction.

18. The method of claim 15 including:

pivoting the lever member toward the housing to a stored position when the lever member is not used to wind up the spring.

19. The method of claim 18 including:

releasably holding the lever member on the housing when the lever member is in the stored position.