Stainless steel bimetallic coupling
AssigneeCalpipe Industries, LLC
InventorRobert Matthew Westerfield
Life of this patent
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Abstract
A conduit coupling assembly for joining together two metal conduits includes a first fitting having a first end opposite a second end, wherein the first end is threadably attached to the conduit, and a first washer attached to the second end of the first fitting, wherein the first washer is non-metallic. The coupling may further include a second fitting in abutment with the first washer, a nut surrounding the first fitting and the second fitting, and a second washer disposed between the nut and the second fitting, wherein the second washer is non-metallic.
Claims19
A conduit assembly, comprising:
- a conduit;
- and
- a coupling attached to the conduit, the coupling comprising:
- a first fitting comprising a first end opposite a second end, wherein the first end is threadably attached to the conduit;
- a first washer attached to the second end of the first fitting, wherein the first washer is non-metallic;
- an electrically conductive element within the first washer;
- a second fitting in abutment with the first washer;
- a nut surrounding the first fitting and the second fitting;
- and
- a second washer disposed between the nut and the second fitting, wherein the second washer is non-metallic.
A coupling for connecting two conduits, the coupling comprising:
- a first fitting comprising a first end opposite a second end, wherein the first end is threadably attachable to a first conduit of the two conduits;
- a first washer attached to the second end of the first fitting, wherein the first washer is non-metallic;
- an electrically conductive element within the first washer:
- a second fitting in abutment with the first washer;
- a nut surrounding the first fitting and the second fitting;
- and
- a second washer disposed between the nut and the second fitting, wherein the second washer is non-metallic.
A method of attaching a first conduit with a second conduit, the method comprising:
- attaching a first fitting and a first washer of a coupling to the first conduit, wherein the first washer is non-metallic, and wherein the first washer comprises an electrically conductive element;
- inserting the second conduit through a second washer and a nut of the coupling, wherein the second washer is non-metallic;
- attaching the second conduit to a second fitting;
- and
- securing the nut around the first fitting and the second fitting, wherein the second washer is disposed between the nut and the second fitting, and wherein the electrically conductive element is in direct physical and electrical contact with the first fitting and the second fitting.
Dependencies are inferred from the claim text.