Abstract A cutter blade is mounted in a cutter block such that the cutting edge of the blade intersects a series of transverse grooves in the block, the grooves being of various depths and widths to accommodate electrical wiring covered with insulation of differing thicknesses. A spring loaded arm maintains pressure on the wiring as the block is rotated around the conductor of the wiring to form an annular cut in the insulation of the wiring. The cut around the conductor ceases when the wiring bottoms out in the selected groove before the cutting edge can engage the conductor. The pressure arm is a part of a single length of rod material which also includes a coil to spring load the arm and a pair of hand grips to control the arm, one of the grips serving as a finger-receiving ring used to rotate the block.
A tool for cutting insulation surrounding metallic conductors of electrical wiring, said tool comprising: a cutter block having a groove of predetermined width and depth; a spring loaded arm carried by the block for pressing the wiring toward said groove; and a cutter blade carried by the block and having a cutting edge disposed to cut the insulation as the tool is rotated about the wiring, said block having a coil spring at one end thereof having a pair of lengths extending therefrom along the block, said arm being one of said lengths and having a grip extending laterally therefrom in one direction, the other length having another grip extending laterally therefrom in the opposite direction, said grips being at the opposite end of the block and squeezable toward each other to spring the arm away from the groove.
Claim 2
Dependent Claim
139 words
A tool for cutting insulation surrounding metallic conductors of electrical wiring, said tool comprising: a cutter block having a groove of predetermined width and depth; a spring loaded arm carried by the block for pressing the wiring toward said groove; and a cutter blade carried by the block and having a cutting edge disposed to cut the insulation as the tool is rotated about the wiring, said block having a coil spring at one end thereof having a pair of lengths extending therefrom along the block, said arm being one of said lengths and having a grip extending laterally therefrom in one direction, the other length having another grip extending laterally therefrom in the opposite direction, said grips being at the opposite end of the block and squeezable toward each other to spring the arm away from the groove.
Claim 3
Dependent Claim
25 words
A tool as claimed in claim 1, wherein the block is provided with a series of grooves of predetermined widths and depths underlying said arm.
Claim 4
Dependent Claim
31 words
A tool as claimed in claim 2, wherein said blade traverses the grooves intermediate the ends of the latter, said edge of the blade being in aligned parallelism with said arm.
Claim 5
Dependent Claim
30 words
A tool as claimed in claim 1, wherein said grip on the arm is a finger ring essentially coplanar with said coil and about which the tool may be rotated.