Patent ID: 11947011
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A sensor apparatus comprising:
a cylindrical sensor window defining an axis; and
a ring fixed relative to the sensor window and centered around the axis;
wherein the ring includes a liquid chamber, at least one nozzle, and an air chamber;
the liquid chamber is elongated circumferentially around the axis;
the at least one nozzle is fluidly connected to the liquid chamber and has a direction of discharge aimed at the sensor window;
the air chamber is elongated circumferentially around the axis alongside the liquid chamber;
the air chamber lacks defined flow paths for forcing air into or out of the air chamber;
the ring includes a wall elongated circumferentially; and
the wall partially forms the liquid chamber and partially forms the air chamber.