CHARLES A MEYER
Engineers in Delaware

4103905, Aug 1, 1978

Feb 7, 1977

5/766475

John W. Desmond - Media PA
Joseph F. Kmec - Aston PA
Charles A. Meyer - Media PA

Westinghouse Electric Corp. - Pittsburgh PA

F16J 1548, F01D 520

277 56

A variable radius labyrinth seal arrangement for use in a steam turbine apparatus is characterized by a flexible strip member having mounted substantially perpendicular thereto a series of corrugated uprights. The strip is received within a circumferential groove provided in the turbine casing and is flexible to conform to the curvature of the groove, thus permitting seal use in a variety of turbine sizes. The amplitude of the corrugations, or waviness, of the uprights varies in accordance to the magnitude of the flexure of the strip necessary for the strip to conform to the groove curvature. The strip is movably biased within the groove and responds to forces generated by contacts between the uprights and rotating turbine elements by displacing radially outward from that contact.

4046388, Sep 6, 1977

Mar 9, 1976

5/665347

Charles A. Meyer - Upper Providence PA

Westinghouse Electric Corporation - Pittsburgh PA

F16J 1550

277 53

A seal arrangement for preventing leakage of a fluid from a high pressure region to a lower pressure region through a radial gap defined between a stationary member and a member rotating relative thereto. A stationary seal member is provided which substantially closes the radial gap but which defines a narrow radial clearance therebetween. Deflector seals are mounted on the rotating member and exhibit predetermined axial alignment with the stationary seal, the deflector seals extending radially outward from the rotating member for a distance less than the clearance defined between the stationary seal and the rotating shaft.