Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 4186554 | Power producing constant speed turbine A power producing constant speed rotary turbine in which an elongate shaft is rotatably supported in longitudinally spaced, axially aligned first and second housings that have a housing assembly disposed thereinbetween. The first housing rotatably support... | 02/05/1980 |
| 4178667 | Method of controlling turbomachine blade flutter A method for controlling the first torsional node line position in a rotatable blade of a turbomachine to improve its flutter stability including the steps of forming a first monolithic blade having a desired airfoil shape with convex and concave side wal... | 12/18/1979 |
| 4102603 | Multiple section rotor disc A design technique, method and apparatus for containing failure of the rotors of axial flow fluid machines. A rotor disk is constructed of at least three disk sections. Each disk section is shaped such that the loading on that section will be distributed ... | 07/25/1978 |
| 4022540 | Frangible airfoil structure An inlet guide vane for a turbofan engine comprises a principal airfoil portion fabricated of metal and a radially outward and rearward corner portion fabricated of a frangible material which is attached to the metal portion and completes the airfoil stru... | 05/10/1977 |
| 4011295 | Ceramic rotor for gas turbine engine The subject rotor comprises a disklike body having hub and rim sections joined by a web section. The body is cast, molded or otherwise suitably formed of powdered silicon (and a binder, if necessary, to make it retain its shape until finally treated) whic... | 03/08/1977 |
| 4000956 | Impact resistant blade A blade fabricated of a plurality of bonded filament laminates, at least one of the laminates characterized by a plurality of continuous, collimated filaments embedded in a different matrix at the blade tip than at the blade root. The matrices are charact... | 01/04/1977 |
| 3997758 | Moisture control device for steam turbines An axial flow elastic fluid turbine apparatus includes a rotor having an annular array of circumferentially spaced blades. A casing encircles the rotor and an annular array of circumferentially spaced stationary nozzle blades is fastened the casing and ar... | 12/14/1976 |
| 3950114 | Turbine blade A turbine blade having a porous hollow sheet metal airfoil and a base defining a platform, stalk, and root. The airfoil portion is integral with an extension which lies within the blade stalk, the base being cast around this extension. The cast metal lies... | 04/13/1976 |
