Electrical metallic tube, coupling, and connector apparatus and method
First Claim
1. A sleeve device comprising;
- a sleeve inner surface forming a sleeve cavity;
a sleeve outer surface;
a first sleeve end adapted to receive an end of a first length of EMT;
a second sleeve end which is a mirror image of the first sleeve end adapted to receive an end of a second length of EMT;
at least one barb on the sleeve inner surface at or near the first sleeve end, the barb adapted to engage a corresponding indentation on the first length of EMT; and
at least one barb on the sleeve inner surface at or near the second sleeve end, the barb adapted to engage a corresponding indentation on the second length of EMT;
the sleeve device functioning to couple the first length of EMT and the second length of EMT.
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Accused Products
Abstract
A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (“EMT”). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installation. In one aspect, the invention is an EMT having: an EMT inner surface forming an EMT cavity; an EMT outer surface; an EMT first end; and at least one indentation in the EMT outer surface at or near the EMT first end, the indentation adapted to receive a corresponding barb from a sleeve device. In another aspect, the invention is a sleeve device comprising; a sleeve inner surface forming a sleeve cavity adapted to receive an end of an EMT; a sleeve outer surface; a first sleeve end; at least one barb on the sleeve inner surface at or near the first sleeve end, the barb adapted to engage a corresponding indentation on the EMT.
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Citations
11 Claims
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1. A sleeve device comprising;
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a sleeve inner surface forming a sleeve cavity; a sleeve outer surface; a first sleeve end adapted to receive an end of a first length of EMT; a second sleeve end which is a mirror image of the first sleeve end adapted to receive an end of a second length of EMT; at least one barb on the sleeve inner surface at or near the first sleeve end, the barb adapted to engage a corresponding indentation on the first length of EMT; and at least one barb on the sleeve inner surface at or near the second sleeve end, the barb adapted to engage a corresponding indentation on the second length of EMT; the sleeve device functioning to couple the first length of EMT and the second length of EMT. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An EMT joint assembly comprising:
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an EMT having an EMT inner surface forming a cavity, an EMT outer surface;
an EMT first end, and one or more indentations in the EMT outer surface at or near the EMT first end, each of the one or more indentations engaging a corresponding barb from a sleeve device;the sleeve device having a sleeve inner surface forming a cavity adapted to receive the EMT first end, a sleeve outer surface;
a first sleeve end;
a set screw hole extending through the sleeve outer surface and the sleeve inner surface; and
the each of the one or more corresponding barbs on the sleeve inner surface at or near the first sleeve end.
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11. An EMT joint assembly comprising:
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an EMT having an EMT inner surface forming a cavity, an EMT outer surface;
an EMT first end, and one or more indentations in the EMT outer surface at or near the EMT first end, each of the one or more indentations engaging a corresponding barb from a sleeve device;the sleeve device having a sleeve inner surface forming a cavity adapted to receive the EMT first end, a sleeve outer surface;
a first sleeve end;
a middle stop on the sleeve inner surface at or near a center of the sleeve device, and the each of the one or more corresponding barbs on the sleeve inner surface at or near the first sleeve end.
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Specification