Abstract: A polyurethane injection gun assembly includes a frame, a handle coupled to the frame, a wheel coupled to the frame, and a mixing assembly coupled to the frame, wherein the mixing assembly includes a mixer manifold, a first inlet for connection to a source of pressurized air, a second inlet for connection to a source of a first polyurethane foam component, and a third inlet for connection to a source of a second polyurethane foam component.

Abstract: A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

Abstract: A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

Abstract: An injection port for a spray gun includes a first end and a second end disposed opposite the first end along a longitudinal axis. The injection port also includes an interior passage extending between the first end and the second end along the longitudinal axis, and a plurality of blind bores disposed at the first end, each blind bore extending perpendicular to the longitudinal axis.

Abstract: A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

Abstract: A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

Abstract: An injection port for a spray gun includes a first end and a second end disposed opposite the first end along a longitudinal axis. The injection port also includes an interior passage extending between the first end and the second end along the longitudinal axis, and a plurality of blind bores disposed at the first end, each blind bore extending perpendicular to the longitudinal axis.

Abstract: A fluid housing for a spray gun includes a main body with a first inlet for connection to a source of pressurized air, a second inlet for connection to a source of a first polyurethane foam component, and a third inlet for connection to a source of a second polyurethane foam component. The main body also includes a valve block having a center gear, a first valve gear coupled to and driven by the center gear, a second valve gear coupled to and driven by the center gear, and a third valve gear coupled to and driven by the center gear.

Abstract: A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

Abstract: A fluid housing for a spray gun. The fluid housing includes a body, a pair of inlet passages formed in the body, a pair of side ports formed through the housing body, and a side seal cartridge removably coupled to each side port. Each side port is in fluid communication with a respective inlet passage. Each side seal cartridge includes an internal passage formed therein and a plurality of openings extending from the internal passage at an offset angle. Each side seal cartridge defines a respective longitudinal axis. The fluid housing further includes a seal that is configured to be in compression along the longitudinal axis when a side seal cartridge and engages one of the side ports.