Back to results
US 11,421,810 B2Granted
Double vented transition elbow
AssigneeNIBCO Inc.
InventorsAndrew J. Terry, Christopher William Mason, Lisa Lyon
Life of this patent
Estimating the term…
Abstract
A double vented transition elbow can be used when venting a variety of applications, such as for baseboard heaters and hot water heating systems. The double vented elbow allows venting in one orientation or in a different orientation when the elbow is rotated. One end of the elbow couples to copper tubing, while the other end of the elbow couples to PEX tubing. Thus, the elbow not only allows for venting in two different orientations, it also allows for the transition from copper to PEX tubing within the same fitting.
Claims20
A double vented plumbing elbow, comprising:
- a single piece elbow body having a cylindrical first opening with a plurality of internal ridges, an O-ring groove, and an O-ring positioned within said groove, a cylindrical second opening, and an elbow formed at the intersection of the cylindrical first opening and the cylindrical second opening, said elbow having a convex outer surface and an elbow fluid passage;
- a first vent port in alignment with said cylindrical second opening, said first vent port having an opening with a threaded surface that extends to the exterior surface of the opening but not to the fluid passage in a raised boss located on the elbow body adjacent to said convex outer surface of said elbow, said first vent port in fluid communication with said elbow fluid passage;
- a second vent port in alignment with said cylindrical first opening, said second vent port, having an opening with a threaded surface that extends to the exterior surface of the opening but not to the fluid passage in a raised boss located on the elbow body adjacent to said convex outer surface of said elbow, said second vent port in fluid communication with said elbow fluid passage;
- wherein said second opening is at a 90° angle to said first opening;
- wherein said second vent port is at a 90° angle to said first vent port;
- wherein the convex outer surface is arched between the first and second vent ports;
- and
- wherein said first vent port and said second vent port have a smaller diameter than the diameter of the elbow fluid passage, and said O-ring has an internal diameter that is smaller than the diameter of the elbow fluid passage.
5 more elements
A double vented plumbing elbow, comprising:
- a single piece elbow body having a cylindrical first opening with a plurality of internal ridges, an O-ring groove, and an O-ring positioned within said groove, a cylindrical second opening with a barbed exterior surface for connecting to a PEX tube, a bent elbow portion located between said first opening and said second opening formed at the intersection of the cylindrical first opening and the cylindrical second opening, said elbow having a convex outer surface and an elbow fluid passage;
- a first vent port in alignment with said cylindrical second opening, said first vent port having an opening with a threaded surface that extends to the exterior surface of the opening but not to the fluid passage in a raised boss located on the elbow body adjacent to said convex outer surface of said elbow;
- a second vent port in alignment with said cylindrical first opening, said second vent port having an opening with a threaded surface that extends to the exterior surface of the opening but not to the fluid passage in a raised boss located on the elbow body adjacent to said convex outer surface of said elbow;
- wherein the convex outer surface is arched between the first and second vent ports;
- and
- wherein said first vent port and said second vent port have a smaller diameter than the diameter of the fluid passage, and said O-ring has an internal diameter that is smaller than the diameter of the fluid passage.
3 more elements
A transition plumbing elbow assembly, comprising:
- a single piece elbow body having a first end, a second end, and a curved elbow portion with a convex outer surface formed between a cylindrical portion of said first end and a cylindrical portion of said second end;
- wherein said first end includes a plurality of internal ridges, an O-ring, and an O-ring positioned within said O-ring groove, and said second end has a barbed PEX tube fitting;
- wherein said curved body is a 90° elbow;
- wherein said elbow body has a fluid passageway extending from said first end through said 90° elbow to said second end;
- wherein said elbow body has a first vent port in alignment with said second end, said first end port having an opening with a threaded surface that extends to the exterior surface of the opening but not to the fluid passageway in a raised boss located adjacent to said convex outer surface;
- wherein said elbow body has a second vent port in alignment with said first end, said second vent port having an opening with a threaded surface that extends to the exterior surface of the opening but not to the fluid passageway in a raised boss located adjacent to said convex outer surface between said 90° elbow and said barbed PEX tube fitting;
- a venting fitting attached to either of said first vent port or said second vent port;
- a vent port plug attached to the other vent port;
- wherein the convex outer surface is arched between the first and second vent ports;
- and
- wherein said first vent port and said second vent port have a diameter that is less than the diameter of said fluid passageway of said elbow body and the internal diameter of said O-ring is smaller than the diameter of said fluid passageway.
8 more elements
Dependencies are inferred from the claim text.