Patent ID: 8695121

Claim:
A helmet system for removing condensation from a user's field of vision, comprising: a helmet shell having an anterior section, a posterior section, and a venting passage, wherein the helmet shell defines an internal cavity that is in fluid communication with a front portion of the venting passage, and wherein the internal cavity is configured to receive the user's head; a visor coupled with the helmet shell, wherein at least part of the visor defines part of the internal cavity; a humidity sensor positioned within the internal cavity of the helmet shell; and a ventilation system comprising: a base coupled with the helmet shell, wherein the base has a first venting aperture in fluid communication with a rear portion of the venting passage, a base cover coupled with the base, wherein the base cover has a second venting aperture, an air movement assembly disposed between the base and the base cover, wherein the air movement assembly provides fluid communication between the first venting aperture and the second venting aperture, a switch, a power source, and a circuit card comprising: a first input configured to receive a signal from the humidity sensor, a second input configured to receive a second signal from the switch, a first module configured to determine a first instruction for the air movement assembly based on the signal received from the humidity sensor, a second module configured to determine a second instruction for the air movement assembly based on the second signal received from the switch, a first output configured to transmit the first instruction to the air movement assembly, wherein activation of the air movement assembly based on the first instruction operates to remove condensation from the user's field of vision by moving a volume of air of the internal cavity of the helmet shell through the venting passage and moving the volume of air through the second venting aperture of the base cover between the anterior section and the posterior section, and a second output configured to transmit the second instruction to the air movement assembly, wherein the second instruction controls whether power is delivered to the air movement assembly and controls whether the air movement assembly directs air flow from the first venting aperture toward the second venting aperture or from the second venting aperture toward the first venting aperture.