Conduit reamer
AssigneeMilwaukee Electric Tool Corporation
InventorsDevin W. Herritz, Ian L. Christianson, Steven W. Hyma
Life of this patent
Estimating the term…
Abstract
A conduit reamer with a lanyard receiver, inner and/or outer cutting blades is provided. The lanyard receiver is located along an axis of the handle near the tool's center of gravity. For example, the lanyard receiver is located between the handle and a bit retainer near the center of gravity. In this orientation, the lanyard receiver prevents tipping of the conduit reamer and retains the bit within the bit retainer when the conduit reamer is dropped. The inner and outer cutting blades include an acute angle that is between 45 and 90 degrees to deburr an end of a conduit.
Claims19
A conduit reamer, comprising:
- a handle extending along a longitudinal axis and defining a first end of the conduit reamer;
- a bit retainer coupled to the handle and defining a second end of the conduit reamer opposite the first end;
- a lanyard receiver coupled to the conduit reamer and located entirely between the handle and the bit retainer with respect to the longitudinal axis, wherein the lanyard receiver is located within 10% of a center of gravity of the conduit reamer along the longitudinal axis;
- and
- a first bit coupled to the bit retainer, the first bit comprising:
- an inner cutting blade;
- an outer cutting blade defining an acute angle with respect to the inner cutting blade, wherein the acute angle is greater than 50 degrees, the inner cutting blade extending radially inwards from the outer cutting blade with respect to the longitudinal axis and the outer cutting blade extending radially outwards from the inner cutting blade with respect to the longitudinal axis;
- and
- a recess between the inner cutting blade and the outer cutting blade, the inner cutting blade extending radially inwards from the recess with respect to the longitudinal axis and the outer cutting blade extending radially outwards from the recess with respect to the longitudinal axis.
A conduit reamer, comprising:
- a handle extending along a longitudinal axis and defining a first end of the conduit reamer;
- a bit retainer coupled to the handle and defining a second end of the conduit reamer opposite the first end;
- a first bit coupled to the bit retainer, the first bit comprising an inner cutting blade and an outer cutting blade, the inner cutting blade extending radially inwards from the outer cutting blade with respect to the longitudinal axis and the outer cutting blade extending radially outwards from the inner cutting blade with respect to the longitudinal axis;
- and
- a lanyard receiver coupled to the conduit reamer and located entirely between the handle and the bit retainer with respect to the longitudinal axis, wherein the lanyard receiver is located within 10% of a center of gravity of the conduit reamer along the longitudinal axis.
A conduit reamer, comprising:
- a handle extending along a longitudinal axis;
- a bit retainer coupled to the handle;
- and
- a first bit releasably coupled to the bit retainer such that the first bit is replaceable, the first bit comprising:
- an inner cutting blade;
- and
- an outer cutting blade extending radially outwards from the inner cutting blade with respect to the longitudinal axis, the inner cutting blade extending radially inwards from the outer cutting blade with respect to the longitudinal axis, the outer cutting blade defining an angle between 22.5 degrees and 45 degrees with respect to the longitudinal axis, wherein the lanyard receiver is located within 5% of a center of gravity of the conduit reamer along the longitudinal axis.
Dependencies are inferred from the claim text.