Frederick P Schultz

US Patent:

40529134, Oct 11, 1977

Filed:

Dec 23, 1975

Appl. No.:

5/643906

Inventors:

Frederick E. Schultz - Devon PA
Albert M. Garber - Wynnewood PA

Assignee:

General Electric Company

International Classification:

G05G 100
G05G 300

US Classification:

74572

Abstract:

A polar weave (i. e. , three-dimensional, reinforced, composite material) flywheel, assembly comprises an outer polar weave portion and an integral metal hub. The hub includes a plurality of recessions and projections to provide an interface between the outer portion and the hub. The outer portion has a cylindrical configuration and is composed of woven and bonded unidirectional high-strength elements aligned and positioned in directions parallel to the polar coordinate axes. The elements so aligned are mechanically imbedded and locked into woven engagement with the recessions and projections, through which the woven outer portion becomes an integral part of the hub, and the interface is inherently strong enough to withstand failure caused by internal and external forces associated with operation of the assembly. The elements aligned and woven within the woven outer portion and onto the hub reinforces the assembly by providing the desired degree of strength and stiffness in directions of the polar coordinate axes, and prevents delamination from occurring in directions along the polar coordinate axes and in directions of the above acting forces. Reinforcement of the assembly also allows internal stresses to be controlled and optimized throughout the assembly when the assembly is subjected to the internal and external forces.

US Patent:

39938174, Nov 23, 1976

Filed:

Jan 4, 1974

Appl. No.:

5/430758

Inventors:

Frederick E. Schultz - Devon PA

Assignee:

General Electric Company - Philadelphia PA

International Classification:

B32B 512
D03D 300
D03D 2500

US Classification:

428 64

Abstract:

A woven structure comprising at least a continuous band around an internal axis, suitable for impregnation with resin or for internal deposition of graphite from a reactive vapor, comprises axial threads, circumferential threads, and radial threads. The device employed to produce the structure comprises principally a series of flat rings or disks, aligned and slightly spaced from each other axially, having small apertures located around their circumference or one or more helical worms, with central openings, whose successive turns are similarly provided with apertures. Radial threads are passed through homologous apertures in successive disks, or successive turns of the helical worm, and are then drawn toward the central axis by wrapping of circumferential threads around them in the axial space between adjacent disks. Axial threads are then passed between the radial threads, and are drawn by further wraps of circumferential threads. The tightness of weave may be controlled by the tightness of wrap, permitting high porosity; or larger pores may be created by sacrificial insertions; and the process is particularly adapted to relatively stiff fibers, such as are desirable for reinforced structures.

US Patent:

44640978, Aug 7, 1984

Filed:

Apr 1, 1982

Appl. No.:

6/364211

Inventors:

Frederick E. Schultz - Devon PA

Assignee:

General Electric Company - Philadelphia PA

International Classification:

F01D 528

US Classification:

416230

Abstract:

A composite, single material, one-piece turbomachinery rotor constructed of fibers bonded in a matrix is disclosed together with a method of manufacture thereof.

US Patent:

41238320, Nov 7, 1978

Filed:

Jan 19, 1978

Appl. No.:

5/870965

Inventors:

Frederick E. Schultz - Devon PA

Assignee:

General Electric Company - Philadelphia PA

International Classification:

B32B 512
D06M 1700
B65H 8100

US Classification:

28143

Abstract:

A woven structure comprising at least a continuous band around an internal axis, suitable for impregnation with resin or for internal deposition of graphite from a reactive vapor, comprises axial threads, circumferential threads, and radial threads. The device employed to produce the structure comprises principally a series of flat rings or disks, aligned and slightly spaced from each other axially, having small apertures located around their circumference or one or more helical worms, with central openings, whose successive turns are similarly provided with apertures. Radial threads are passed through homologous apertures in successive disks, or successive turns of the helical worm, and are then drawn toward the central axis by wrapping of circumferential threads around them in the axial space between adjacent disks. Axial threads are then passed between the radial threads, and are drawn by further wraps of circumferential threads. The tightness of weave may be controlled by the tightness of wrap, permitting high porosity; or larger pores may be created by sacrificial insertions; and the process is particularly adapted to relatively stiff fibers, such as are desirable for reinforced structures.