Patent ID: 11892098
Assignee: GREENHECK FAN CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. An airflow valve comprising:
a housing defining an inlet, an outlet, and a conduit between the inlet and the outlet;
an adjustment plate located in the conduit, wherein the adjustment plate is rotatably coupled to the housing and configured to rotate about an adjustment plate axis;
a valve plate located in the conduit, wherein the valve plate is rotatably coupled to the housing and configured to rotate, separately from the adjustment plate, about a valve plate axis;
a spring biasing the valve plate toward the adjustment plate;
an actuator, fixed relative to the adjustment plate, comprising an actuator shaft that is rotatable in response to an input signal;
an actuator gear fixed relative to the actuator shaft; and
a conduit gear, fixed relative to the housing and located in the conduit, comprising one or more gear teeth in contact with one or more gear teeth of the actuator gear, wherein the airflow valve is configured to rotate the adjustment plate about the adjustment plate axis by rotating the actuator shaft while the actuator gear contacts the conduit gear.