Electromagnetic pulse rotary seal
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorClarence W. Neher
Life of this patent
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Abstract
An rotary seal for protection against electromagnetic interference and electromagnetic pulses is disclosed. An electrically conductive resilient bellows surrounds a shaft extending through an opening in an enclosure. The bellows is attached at one end to the shaft and biased against the enclosure at the other end. The attachment of the bellows to the shaft includes a static electromagnetic seal.
Claims2
An electromagnetic pulse rotary seal for a shaft extending through an opening in an enclosure, comprising an electromagnetically conductive resilient bellows surrounding the shaft outside the enclosure opening, the bellows having a first open end attached to the shaft, a second open end biased against the enclosure around the enclosure opening, and wherein the bellows has a passivated surface area in contact with the enclosure for reducing electromagnetic leakage past said surface area.
An electromagnetic pulse rotary seal for a shaft extending through an opening in an enclosure, comprising an electromagnetically conductive resilient bellows surrounding the shaft outside the enclosure opening, the bellows having a first open end attached to the shaft, a second open end biased against the enclosure around the enclosure opening, and wherein the enclosure has a passivated surface area in contact with the bellows for reducing electromagnetic leakage past said surface area.
Dependencies are inferred from the claim text.