Abstract: Improved EMI/RFI shielding is provided for situations which require heavy duty wiping insertions, such as occurring when a relatively heavy electronic assembly is to be removably inserted in a cabinet. In accordance with the invention, inexpensive integral EMI/RFI strips of conductive spring material are riveted to opposite cabinet walls so as to be adjacent the wiping sides of the inserted electronic assembly. Each EMI/RFI strip contains integral longitudinally spaced projecting fingers formed to provide durable and highly reliable EMI/RFI shielding capable of withstanding many insertions and removals.

Abstract: A tire pressure gage for integral mounting on the wheel of an aircraft tire is provided with failsafe features to reduce the likelihood of sudden tire pressure loss through catastrophic failure of the gage. A pressure relief valve vents the case when the threshold pressure is sensed to thereby preclude long-term pressurization of the case should a slow leak develop in the bourdon tube of the gage. A flow-actuated valve in the port leading from the tire to the bourdon tube, seals the tire against pressure loss through the gage when a fast leak is detected such as might occur upon rupture of the tube. The pressure relief valve includes an ejectable plug normally visible externally of the gage case, the presence or absence of the plug providing a positive indication of whether or not the gage case has been pressurized.