Abstract: A shaft seal (and method for making the same) of the type having an annular elastomeric body, a molded lip, and the molded lip having a liner of sintered polytetrafluoroethylene bonded thereto. The elastomer is molded simultaneously with the polytetrafluoroethylene liner being formed and bonded to the elastomer. The method for making the seal employs the same mold used to make common, molded lip elastomeric seals.

Abstract: A seal assembly for sealing the slot formed between the aft end of an extended leading edge flap and the leading edge of a wing includes a flexible, blade-type seal extending spanwise between the leading edge flap and the wing. The upper end of the seal is attached to the underside of the leading edge flap adjacent its aft end and extends downwardly therefrom. The bottom portion of the seal is normally spaced from the leading edge of the wing. The seal is flexible so that when air is flowing over the leading edge flap and the wing, airflow from the underside of the flap causes the lower end of the seal to move toward the leading edge of the wing and intimately engage the leading edge of the wing in sealing contact. After the bottom edge of the seal engages the leading edge of the wing, the differential pressure between the upper surface of the flap and the wing and the region below the leading edge flap maintains the seal in contact with the leading edge.

Abstract: A carbon ring seal for a shaft rotating at high speed is capable of preventing high temperature, high pressure gas from entering the oil system. The carbon seal is constructed so that at ambient temperature it works as a controlled gap seal, but when the seal runner reaches its full thermal growth the seal then functions as a positive contact seal. The carbon seal ring is retained by an anti-rotation pin extending through a slot in the ring. The carbon ring has a single fracture at the slot. The seal housing is provided with a plurality of calibrated holes for predetermined internal pressurization and cooling.