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US 2021/0234428 A1Published application
Electric motor power cord for portable electrical assembly
AssigneeHougen Manufacturing, Inc.
InventorJeffrey Steven Gill
Life of this patent
Estimating the term…
Abstract
A portable electrical assembly includes an electric motor, a power module, and an electric motor power cord. The electric motor power cord is placed within a cavity of a housing of the portable electrical assembly and is operatively connected to the electric motor at first end and to the power module at a second end. The electric motor power cord is configured to move in response to the movement of the electric motor without the creation of sharp bends along its length as the electric motor moves between all of its possible operating positions including an extended position and a resting position and a plurality of intermediate position between the extended and resting position.
Claims18
A portable electric assembly comprising:
- a housing comprising:
- an outer side enclosure wall,
- an inner side enclosure wall spaced from said outer side enclosure wall,
- a top enclosure wall, and
- a bottom enclosure wall spaced from said top enclosure wall with said top enclosure wall and said bottom enclosure wall defining a length along a central axis therebetween,
- wherein said outer side enclosure wall, said inner side enclosure wall, said top enclosure wall and said bottom enclosure wall define a cavity therebetween;
- a power module coupled to said housing;
- an electric motor coupled to said housing and moveable relative to said power module between a plurality of operating positions including a resting position, an extended position, and one or more intermediate positions between said resting position and said extended position;
- and
- an electric motor power cord contained within said cavity and operatively connected to said electric motor at a first end and to said power module at a second end opposite said first end, said electric motor power cord circularly wrapped about said central axis in a clockwise or counterclockwise direction so as to define a plurality of windings, and with said plurality of windings having a pitch defined by a distance measured along said central axis between an upper surface of an uppermost one of said plurality of windings and a lower surface of a lowermost one of said plurality of windings,
- wherein said plurality of windings are configured so that said pitch is a maximum pitch when said electric motor is in said resting position, and said pitch is a minimum pitch when said electric motor is in said extended position, said maximum pitch having a greater distance than said minimum pitch.
8 more elements
A drill assembly comprising:
- a housing comprising:
- an outer side enclosure wall,
- an inner side enclosure wall spaced from said outer side enclosure wall,
- a top enclosure wall, and
- a bottom enclosure wall spaced from said top enclosure wall with said top enclosure wall and said bottom enclosure wall defining a length along a central axis therebetween,
- wherein said outer side enclosure wall, said inner side enclosure wall, said top enclosure wall and said bottom enclosure wall define a cavity therebetween;
- a power module coupled to said housing;
- an electric motor coupled to said housing and moveable relative to said power module between a plurality of operating positions including a resting position, an extended position, and one or more intermediate positions between said resting position and said extended position;
- and
- an electric motor power cord contained within said cavity and operatively connected to said electric motor at a first end and to said power module at a second end opposite said first end, said electric motor power cord circularly wrapped about said central axis in a clockwise or counterclockwise direction so as to define a plurality of windings, and with said plurality of windings having a pitch defined by a distance measured along said central axis between an upper surface of an uppermost one of said plurality of windings and a lower surface of a lowermost one of said plurality of windings;
- a slide assembly coupled to said housing and said electric motor;
- a gear rotatably coupled to said housing and configured to engage said slide assembly to move said electric motor in said first direction or in said second direction;
- an arbor coupled to said electric motor and configured for rotation by said electric motor;
- a cutter coupled to said arbor;
- and
- a magnetic base mounted to said housing,
- wherein said plurality of windings are configured so that said pitch is a maximum pitch when said electric motor is in said resting position, and said pitch is a minimum pitch when said electric motor is in said extended position, said maximum pitch having a greater distance than said minimum pitch.
14 more elements
A method for manufacturing a portable electric assembly comprising:
- forming a housing comprising:
- an outer side enclosure wall,
- an inner side enclosure wall spaced from the outer side enclosure wall,
- a top enclosure wall, and
- a bottom enclosure wall spaced from the top enclosure wall with the top enclosure wall and the bottom enclosure wall defining a length along a central axis therebetween,
- wherein the outer side enclosure wall, the inner side enclosure wall, the top enclosure wall and the bottom enclosure wall define a cavity therebetween;
- coupling a power module coupled to the housing;
- coupling an electric motor to the housing with the electric motor configured to be moveable relative to the power module between a plurality of operating positions, the plurality of operating positions including a resting position, an extended position, and one or more intermediate positions between the resting position and the extended position;
- and
- introducing an electric motor power cord within the cavity of the housing with the electric motor power cord circularly wrapped about a central axis in a clockwise or counterclockwise direction so as to define a plurality of windings, with the plurality of windings having a pitch defined by a distance measured along the central axis between an upper surface of an uppermost one of the plurality of windings and a lower surface of a lowermost one of the plurality of windings, wherein the plurality of windings are configured so that the pitch is a maximum pitch when the electric motor is in the resting position, and the pitch is a minimum pitch when the electric motor is in the extended position, the maximum pitch having a greater distance than the minimum pitch;
- connecting a first end of the electric motor power cord to the electric motor;
- and
- connecting a second end of the electric motor opposite the first end to the power module.
10 more elements
Dependencies are inferred from the claim text.