Abstract: Aneroid bellows assembly utilized in the emergency oxygen supply systems of aircraft includes a leaf spring mounted at its center to an adjustably positioned end fitting located on the axis of an evacuated bellows spring. The outer edges of the leaf spring are engaged with an adjustable ring threadedly mounted on the outer rim of a tubular housing member in which the bellows spring is mounted. The adjustable end fitting and ring permit elements having a substantial size tolerance to be assembled together and readily adjusted to achieve precise calibration.

Abstract: Vibration absorbing connector for use in high pressure fluid piping systems such as the refrigerant lines in an automotive air conditioning system incorporates a thin bellows member whose ends are restrained against axial movement by a restraining means such as a plurality of axially extending flexible cables or a braided metal sleeve which surrounds the bellows member. A molded-in-place elastomeric layer fills in the external bellows corrugations to prevent their deformation under load and encapsulates the restraining means. The design permits a 3 inch long bellows having a 0.005" wall thickness to perform as well as a 7 inch long bellows having a 0.020" wall which has a conventional configuration under internal fluid pressures that would collapse the thin wall bellows corrugations in the absence of the elastomeric layer.