Blade fuse tester having lamp

• US 7,394,343 B2
• Filed: 11/14/2005
• Issued: 07/01/2008
• Est. Priority Date: 11/14/2005
• Status: Active Grant

• Current Assignee: Wen-Ho Cheng, Wen-Tsung Cheng
• Original Assignee: Wen-Ho Cheng, Wen-Tsung Cheng
• Inventors: Cheng, Wen-Ho, Cheng, Wen-Tsung
• Primary Examiner(s): Vortman; Anatoly
• Application Number:
  US11/271,908
• Publication Number:
  US 20070109090A1
• Time in Patent Office: 960 Days
• Field of Search: 337/265, 337/266, 324/507, 324/550
• US Class Current: 337/265
• CPC Class Codes: H01H 2085/0216 Tools for controlling fuses or the line associated with the fuses
• CPC Class Codes: H01H 85/0208 Tools for inserting and removing fuses

Abstract

A handheld device having a lamp for testing and clipping a blade fuse includes a handle having two probes extended therefrom, a clamp formed on one end of the handle, and an indicator for indicating the condition of the fuse. One of the probes is movably disposed on the handle, thereby allowing the adjustment of separation between two probes. Finally, one side of the handle includes a first lamp, which is disposed parallel to the probes and is electrically connected to the circuit board for illuminating the fuse to be tested. The other side of the handle includes a second lamp, which is disposed parallel to the clamp and is electrically connected to the circuit board for illuminating the fuse to be pulled out.

Claims

1. A handheld device for testing a blade fuse, comprising a handle having a clamp formed on one end thereof, the handle comprising two probes extended out from the handle, and an indication unit exposed outside of the handle for indicating whether the tested fuse is damaged;

wherein

one side of the handle comprises a first lamp, which is disposed parallel to the probes for illuminating the fuse to be tested;

another side of the handle comprises a second lamp, which is disposed parallel to the parallel to the clamp for illuminating the fuse to be pulled out;

a linear sliding groove is formed on the handle;

a plurality of wider notches formed on the sliding groove; and

an adjustment knob is formed on the handle, the adjustment knob can linearly slide in the linear sliding groove to move one of the probes together therewith and can be temporarily locked in each of the wider notches and thereby allowing the adjustment of separation between the two probes.

2. The device as recited in claim 1, further comprising a switch being an electronic switch to turn on and off of the first and second lamps.

3. The device as recited in claim 1, further comprising a switch being a mechanical switch to turn on and off of the first and second lamps.

4. The device as recited in claim 1, wherein the first and second lamps are light emitting diodes.