Systems and methods for conveying gas and connection assemblies for the same
A fitting includes a fitting body having a connection axis. The fitting includes a fitting first end having a fitting first opening. The fitting includes a fitting second end having a fitting second opening. The fitting includes a fitting cam-lock proximate the fitting first end. The fitting includes a fitting twist-lock proximate the fitting second end. The fitting cam-lock is configured to engage a manifold cam-lock of a manifold of a gas conveyance system. The fitting twist-lock is configured to engage a connector twist-lock of a connector by rotating the connector about the connection axis relative to the fitting.
1 . A fitting comprising:
a fitting body comprising a connection axis;
a fitting first end having a fitting first opening;
a fitting second end having a fitting second opening;
a fitting cam-lock proximate the fitting first end and comprising:
a first cam-lock protrusion projecting from a fitting outer surface of the fitting body;
a second cam-lock protrusion projecting from the fitting outer surface and spaced away from the first cam-lock protrusion along the connection axis; and
a cam-lock groove formed between the first cam-lock protrusion and the second cam-lock protrusion;
a first cam-lock gasket coupled to the first cam-lock protrusion;
a second cam-lock gasket coupled to the second cam-lock protrusion;
a fitting twist-lock proximate the fitting second end,
wherein:
the fitting cam-lock is configured to engage a manifold cam-lock of a manifold of a gas conveyance system; and
the fitting twist-lock is configured to engage a connector twist-lock of a connector by rotating the connector about the connection axis relative to the fitting.
2 . The fitting of claim 1 , further comprising a flange projecting from the fitting outer surface of the fitting body between the fitting cam-lock and the fitting second end.
3 . The fitting of claim 1 , wherein:
the fitting body comprises:
a first inner dimension at the fitting first end; and
a second inner dimension at the fitting second end; and
the first inner dimension and the second inner dimension are the same.
4 . The fitting of claim 1 , wherein:
the fitting body comprises:
a first inner dimension at the fitting first end; and
a second inner dimension at the fitting second end; and
the first inner dimension and the second inner dimension are different.
5 . The fitting of claim 4 , wherein the second inner dimension is less that than the first inner dimension.
6 . The fitting of claim 1 , wherein:
the fitting twist-lock comprises a twist-lock groove formed in a fitting inner surface of the fitting body proximate the fitting second end;
the twist-lock groove is configured to receive a twist-lock protrusion projecting from a connector outer surface of the connector; and
the twist-lock protrusion is moved to a secured position in the twist-lock groove by rotating the connector about the connection axis relative to the fitting.
7 . The fitting of claim 6 , further comprising a stop disposed along the twist-lock groove that limits rotation of the connector about the connection axis relative to the fitting.
8 . The fitting of claim 6 , wherein:
the fitting twist-lock further comprises a second twist-lock groove formed in the fitting inner surface of the fitting body proximate the fitting second end;
the twist-lock groove is configured to receive a second twist-lock protrusion projecting from the connector outer surface of the connector; and
the second twist-lock protrusion is moved to a secured position in the second twist-lock groove by rotating the connector about the connection axis relative to the fitting.
9 . The fitting of claim 8 , further comprising a stop disposed between the twist-lock groove and the second twist-lock groove that limits rotation of the connector about the connection axis relative to the fitting.
10 . The fitting of claim 1 , wherein:
the fitting twist-lock comprises a twist-lock protrusion projecting from a fitting inner surface proximate the fitting second end;
the twist-lock protrusion is configured to fit in a twist-lock groove formed in a connector outer surface of the connector; and
the twist-lock protrusion is moved to a secured position in the twist-lock groove by rotating the connector about the connection axis relative to the fitting.
11 . The fitting of claim 10 , wherein:
the fitting twist-lock comprises a second twist-lock protrusion projecting from the fitting inner surface proximate the fitting second end;
the second twist-lock protrusion is configured to fit in a second twist-lock groove formed in the connector outer surface of the connector; and
the second twist-lock protrusion is moved to a secured position in the second twist-lock groove by rotating the connector about the connection axis relative to the fitting.
12 . The fitting of claim 1 , further comprising a fitting lug projecting from the fitting outer surface of the fitting body,
wherein the fitting lug is configured to connect to a connector lug projecting from a connector outer surface of the connector.
13 . The fitting of claim 1 , further comprising a fitting gasket located on a fitting inner surface of the fitting body proximate the fitting second end.
14 . The fitting of claim 1 , further comprising a fitting cap,
wherein:
the fitting cap comprises a cap twist-lock; and
the fitting twist-lock is configured to engage the cap twist-lock by rotating the fitting cap about the connection axis relative to the fitting.
15 . The fitting of claim 1 , wherein the cam-lock groove is annular.
16 . A connection assembly for coupling a hose and a manifold of a gas conveyance system, the connection assembly comprising:
a fitting configured connect to the manifold and comprising a fitting body, a fitting cam-lock, and a fitting twist-lock; and
a connector configured to connect to the hose and comprising a connector twist-lock,
wherein:
the fitting cam-lock of the fitting is configured to engage a manifold cam-lock of the manifold and comprises:
a first cam-lock protrusion projecting from a fitting outer surface of the fitting body;
a second cam-lock protrusion projecting from the fitting outer surface and spaced away from the first cam-lock protrusion along a connection axis; and
a cam-lock groove formed between the first cam-lock protrusion and the second cam-lock protrusion;
a first cam-lock gasket coupled to the first cam-lock protrusion; and
a second cam-lock gasket coupled to the second cam-lock protrusion; and
the fitting twist-lock of the fitting is configured to engage the connector twist-lock of the connector by rotating the connector about a connection axis relative to the fitting.
17 . The connection assembly of claim 16 , wherein:
the fitting further comprises:
a fitting first end having a fitting first opening; and
a fitting second end having a fitting second opening;
the connector comprises:
a connector body;
a connector first end having a connector first opening; and
a connector second end having a connector second opening;
the fitting cam-lock is located proximate the fitting first end;
the fitting twist-lock is located proximate the fitting second end; and
the connector twist-lock is located proximate the connector first end.
18 . The connection assembly of claim 17 , wherein the fitting further comprises a flange projecting from a fitting outer surface of the fitting body between the fitting cam-lock and the fitting second end.
19 . The connection assembly of claim 16 , wherein the cam-lock groove is annular.
20 . A method for conveying a gas, the method comprising:
coupling an intake hose to an air handler;
coupling the intake hose to a manifold using an intake connection assembly;
coupling an output hose to the manifold using an output connection assembly; and
running the output hose to a confined space,
wherein:
each one of the intake connection assembly and the output connection assembly comprises:
a fitting connected to the manifold and comprising a fitting cam-lock and a fitting twist-lock; and
a connector connected to the intake hose or the output hose and comprising a connector twist-lock,
the fitting cam-lock of the fitting is configured to engage a manifold cam-lock of the manifold and comprises:
a first cam-lock protrusion projecting from a fitting outer surface of a fitting body;
a second cam-lock protrusion projecting from the fitting outer surface and spaced away from the first cam-lock protrusion along a connection axis; and
a cam-lock groove formed between the first cam-lock protrusion and the second cam-lock protrusion;
a first cam-lock gasket coupled to the first cam-lock protrusion;
a second cam-lock gasket coupled to the second cam-lock protrusion; and
the fitting twist-lock of the fitting is configured to engage the connector twist-lock of the connector by rotating the connector about the connection axis relative to the fitting.