Screw driver with a flashlight

• US 5,550,719 A
• Filed: 04/11/1995
• Issued: 08/27/1996
• Est. Priority Date: 04/11/1995
• Status: Expired due to Fees

• Current Assignee: Shang-Tai Kuo
• Original Assignee: Shang-Tai Kuo
• Inventors: Kuo, Shang-Tai
• Primary Examiner(s): Gromada, Denise L.
• Assistant Examiner(s): Cariaso, Alan B.
• Application Number:
  US08/419,883
• Time in Patent Office: 504 Days
• Field of Search: 362/109, 362/119, 362/120, 362/202, 362/204, 362/205, 362/206
• US Class Current: 362/120
• CPC Class Codes: B25B 23/18 Devices for illuminating the head of the screw or the nut

Abstract

A screw driver with a flashlight comprising a grip having a driver hole for fixing a driver rod, a lamp base with a negative pole connected with a short wire with a spring to contact the negative pole of a battery and a positive pole connected with a bar, a lamp fixed in the top of the lamp base beside the driver rod, the lamp base fitted in a conducting groove provided lengthwise near a battery chamber in the grip, a button switch fixed in a male threaded end portion of a bottom cap, the male threaded portion engaging a female thread in a rear end of the grip to grip to assemble the bottom cap with the grip, and confining the lamp and its related components in the grip, and the button switch located in the bottom cap and able to be touched manually to turn on or off the lamp.

Claims

1. A screw driver with a flashlight comprising:

a grip having a female thread in a bottom end, a battery chamber extending inward from an inner end of said female thread for placing a battery therein, a conducting groove bored lengthwise beside the battery chamber and extending to near a front end of said grip, but not protruding out of the front end, a driver rod tube beside the conducting groove with an opening on the front end of said grip, and a hook hole near a bottom end of the conducting groove;

a lamp base contained in said conducting groove of said grip, having a negative pole and a positive pole in a bottom end, said negative pole and said positive pole separated from each other, a short wire connected with the negative pole and extending rearward and having its rear end connected with a helical spring, and a conductive elongate bar connected to the positive pole and extending rearward in parallel to the short wire of the negative pole and having a hook at a rear end;

a button switch contained in a switch hole in a bottom cap, having a conducting disc at a top end thereof to contact with the rear end of the elongate bar and a positive pole of a battery;

an inner cap provided to cover a rear end of said button switch;

said bottom cap having a male-threaded inner end portion to engage said female thread of said grip, a center sloped hole provided in a rear end of the cap, said switch hole provided in the male-threaded portion, a through hole communicating with said switch hole and said sloped hole, said through hole fitting with said inner cap firmly, a hangar and a gasket provided to fit around said male-threaded portion and sandwiched between said bottom cap and said rear end of said grip after said bottom cap is combined with said grip; and

said lamp base together with said short wire, said helical spring and said elongate conducting bar being placed in said conducting groove of said grip, said helical spring being located in the top end of said battery chamber, said hook of said conducting bar hooking said hook hole, a lamp fixed on top of said lamp base near the front end of said grip, a battery being placed in said battery chamber with a negative bottom in contact with the top of said helical spring, said inner cap and said button switch being placed in the switch hole of said bottom cap, and said male-threaded portion being screwed tightly into the female thread of said grip.