Lighting equipment for a key ring

• US 5,008,784 A
• Filed: 05/17/1990
• Issued: 04/16/1991
• Est. Priority Date: 05/17/1990
• Status: Expired due to Fees

• Current Assignee: Howard Wang
• Original Assignee: Howard Wang
• Inventors: Wang, Howard
• Primary Examiner(s): Husar, Stephen F.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/524,573
• Time in Patent Office: 334 Days
• Field of Search: 302/109, 302/116, 302/202, 302/203, 302/205, 302/206, 200/60
• US Class Current: 362/116
• CPC Class Codes: F21L 2/00 Systems of electric lighting devices systems employing both electric and non-electric light sources or exchangeable light sources F21L27/00

Abstract

A lighting equipment includes a cylindrical tube having a profile formed in a bottom. The profile has a pair of lower grooves and a pair of higher grooves. A barrel, a spring, a cell and a braket are received in the cylindrical tube. A rod is coupled to the bracket. A pin is laterally provided on the rod. The pin is actuated to follow the profile so that the pin is laid in either the upper grooves or the lower grooves. A center electrode of the cell is actuated either to contact or to be separated from a prong of a light bulb in order to turn on or turn off the light bulb.

Claims

1. A lighting equipment for a key ring comprising a cylindrical tube having a profile formed in a bottom thereof, said profile having a pair of lower grooves and a pair of higher grooves;

a barrel being substantially received in said cylindrical tube with an upper end extending beyond said cylindrical tube, a notch being vertically formed in said upper end of said barrel;

a ring element being provided around said upper end of said barrel and contacting an upper end of said cylindrical tube, a tongue being integrally formed on said ring element and extends toward a center thereof, said tongue extending through said notch toward a center of said barrel;

a light bulb which has two prongs being received in said upper end of said barrel, one of said prongs being integrally fixed to said tongue so that said one prong is electrically connected to said tongue, a resilient leg being coupled to an other prong;

a spring and at least one cell being received in a lower end of said barrel;

a bracket being provided between said barrel and said cylindrical tube, said bracket and said cell being biased downward by said spring;

a rod extending through a center of said bottom of said cylindrical tube and being coupled to said bracket;

a pin being laterally provided on said rod; and

said key ring being strung on a lower end of said rod; and

said pin being actuated to follow said profile so that both ends of said pin are laid in either said upper grooves or said lower grooves and so that a center electrode of an uppermost cell is actuated either to contact or to be separated from said resilient leg in order to turn on or turn off said light bulb.

2. A lighting equipment for a key ring comprising a cylindrical tube having a profile formed in a bottom thereof, said profile having a pair of lower grooves and a pair of higher grooves;

a barrel being substantially received in said cylindrical tube with an upper end extending beyond said cylindrical tube, an annular recess being formed on a lower end of said barrel;

a ring element being provided around said upper end of said barrel and contacting an upper end of said cylindrical tube;

a light bulb which has two prongs being received in said upper end of said barrel, one of said prongs being connected to said ring element, a resilient leg being coupled to an other prong;

a spring and at least one cell being received in a lower end of said barrel;

a bracket being provided between said barrel and said cylindrical tube, said bracket and said cell being biased downward by said spring, said bracket having four equally spaced lugs vertically provided on a peripheral edge thereof, a protrusion being formed on an upper and outer end of each said lug, said lugs holding said annular recess of said barrel, said protrusions electrically contacting an inner surface of said cylindrical tube;

a rod extending through a center of said bottom of said cylindrical tube and being coupled to said bracket;

a pin being laterally provided on said rod; and

said key ring being strung on a lower end of said rod; and

said pin being actuated to follow said profile so that both ends of said pin are laid in either said upper grooves or said lower grooves and so that a center electrode of an uppermost cell is actuated either to contact or to be separated from said resilient leg in order to turn on or turn off said light bulb.