Lamp or flashlight having a multi-feature rotating switching assembly

• US 5,345,370 A
• Filed: 12/08/1992
• Issued: 09/06/1994
• Est. Priority Date: 12/08/1992
• Status: Expired due to Fees

• Current Assignee: Satelight Technologies, Inc.
• Original Assignee: Satelight Technologies, Inc.
• Inventors: Murray, Donald W., Story, Michael C.
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): LEE, Y MY QUACH
• Application Number:
  US07/986,989
• Time in Patent Office: 637 Days
• Field of Search: 362/118, 362/187, 362/194, 362/197, 362/203, 362/205, 362/202, 200/60
• US Class Current: 362/205
• CPC Class Codes: F21L 4/005 the device being a pocket lamp F21L4/022, F21L4/045, F21L4/085 take precedence
• CPC Class Codes: F21V 14/045 in portable lighting devices
• CPC Class Codes: F21V 19/047 by using spare light sources comprised in or attached to the lighting device and being intended to replace a defect light source by manual mounting
• CPC Class Codes: F21V 21/406 for portable lighting devices
• CPC Class Codes: F21V 23/0414 specially adapted to be used with portable lighting devices

Abstract

A lamp or flashlight having a multi-feature switching assembly is disclosed. The flashlight comprises a barrel, a head assembly, and a rotating switching assembly. The head assembly and switching assembly are rotated relative to the barrel and a tongue extending from the barrel to bring a conductor of the switching assembly into contact with, or remove the conductor from contact with, the tongue to close or open an electrical circuit for turning the light bulb on or off, respectively. The conductor may be adapted to nestingly engage the tongue in a locked on position, and a resilient member may be added to nestingly engage the tongue in a locked off position. Unlocked on and off positions of the switching assembly permit the light to be quickly flashed on and off. The head assembly includes a head and a head portion, and the head portion may be rotated relative to the head to adjust the focus of the light independently of the on/off function. Also independently of the on/off function, the head portion may be removed so that the light bulb provides a substantially spherical, unfocused source of light.

Claims

1. A flashlight comprising:

a barrel size to accommodate at least one battery, having a distal and proximal end, and having a tongue extending from a portion of said proximal end of said barrel, said tongue having an inner surface and an outer surface, said inner surface having a first groove;

a head assembly adapted to rotatably engage said proximal end of said barrel so that said head assembly is rotatable relative to said barrel without axial movement of said head assembly relative to said barrel; and

a switching assembly secured to said head assembly and disposed adjacent said proximal end of said barrel and comprising an insulator having a distal face and a proximal face, and an electrical conductor, at least a portion of said conductor being disposed within said insulator, and said insulator having at least one aperture disposed in said proximal face for receiving a light bulb so that said bulb contacts said conductor;

said insulator having a recess in said distal face for receiving said tongue and permitting rotation of said tongue relative to each insulator when said barrel is rotated relative to said switching assembly, said recess has an inner face and an outer face;

said tongue and said conductor being disposed so that rotation of said switching assembly relative to said barrel enables positioning of said tongue of said barrel in a first position in which said tongue is in contact with said conductor and a second position in which said tongue is removed from contact with said conductor; and

said conductor having a first portion that is exposed to said recess so that rotation of said barrel relative to said switching assembly enables rotation of said tongue between said first position in which said tongue is in contact with said first portion of said conductor and said second position in which said tongue is removed from contact with said first portion of said conductor within said recess of said insulator;

wherein, said conductor extends within said recess so that said conductor biases said tongue toward said outer face of said recess and said conductor nestingly engages said first groove when said tongue is placed in contact with said conductor.

2. The flashlight of claim 1 wherein said conductor extends from said inner face of said recess into said recess.

3. The flashlight of claim 1 wherein said recess of said insulator has a first end and a second end and said conductor extends within said recess near said first end of said recess to bias said tongue toward said outer face of said recess when said tongue is rotated near said first end of said recess;

and further comprising a resilient member extending from said insulator into said recess near said second end of said recess for biasing said tongue toward said outer face of said recess when said tongue is rotated near said second end of said recess.

4. The flashlight of claim 3 wherein said tongue has first and second ends, said first groove in said tongue being near said first end of said tongue, and said tongue having a second groove near said second end of said tongue so that said resilient member may nestingly engage said second groove of said tongue when said tongue is rotated near said second end of said recess.

5. The flashlight of claim 1 further comprising a second conductor disposed within said insulator so that a proximal end of said second conductor is exposed to said at least one aperture of said insulator for contacting said bulb and so that a distal end of said second conductor extends through said distal face of said insulator for contacting said at least one battery.

6. The flashlight of claim 1 wherein said insulator has a skirt portion which extends over said proximal end of said barrel and between said barrel and said head assembly so that said skirt portion provides for smooth rotation of said barrel relative to said head assembly.

7. The flashlight of claim 1 wherein said head assembly has a head and a head portion which is threadingly engaged with said head.

8. The flashlight of claim 7 wherein said head portion includes a lens and a reflector which are secured to said head portion and said switching assembly is secured to said head so that rotation of said head portion causes relative axial motion between said reflector and said bulb to provide for changing a dispersion of light during operation of said flashlight.

9. The flashlight of claim 8 wherein said head portion has a proximal end, a lip at said proximal end of said head portion, and a threaded inner end near said proximal surface of said head portion, and said reflector has a proximal end and a threaded, outer surface near said proximal end of said reflector, said reflector being threadably secured to said head portion, and said lens being held between said proximal end of said reflector and said lip of said head portion.

10. The flashlight of claim 8 wherein said head assembly and said proximal face of said insulator define a cavity having sufficient space to store a spare light bulb.

11. A lamp comprising:

a barrel having a proximal end;

a switching assembly disposed adjacent to and rotatably engaging said proximal end of said barrel, said switching assembly comprising an insulator, a conductor, a resilient member, means for receiving a light bulb within said insulator, and means for placing a first electrode of said light bulb into electrical contact with a first electrode of a power supply;

a first portion of said conductor extending out from said insulator and a second portion of said conductor being disposed within said insulator for contacting a second electrode of said light bulb, a first portion of said resilient member extending out from said insulator in a spaced relationship to said first portion of said conductor, and a second portion of said resilient member being disposed within said insulator; and

means for placing said barrel into electrical contact with a second electrode of said power supply;

wherein said switching assembly may be rotated relative to said barrel between a first position in which said first portion of said conductor contacts and nestingly engages a first portion of said proximal end of said barrel to place said lamp in a locked on position and a second portion in which said first portion of said resilient member contacts and nestingly engages a second portion of said proximal end of said barrel to place said lamp in a locked off position.

12. The lamp of claim 11 wherein said switching assembly is rotatably secured to said barrel so that said switching assembly may rotate relative to said barrel without axial movement of said switching assembly relative to said barrel.

13. The lamp of claim 12 further comprising a head assembly rigidly secured to said insulator and rotatably secured to said barrel so that switching assembly may be rotated relative to said barrel by rotating said head assembly relative to said barrel.

14. The lamp of claim 13 wherein said head assembly has an outer diameter substantially equal to an outer diameter of said barrel.