1
Alfidi Ralph J, Cross William B: Vessel implantable appliance and method of implanting it. Watts Hoffmann Fisher & Heinke, March 4, 1975: US3868956 (766 worldwide citation)

An expansible appliance and methods of making and implanting it in a vessel of an animal. The expansible appliance comprises a nickel-titanium alloy which is initially formed in an expanded configuration and is then deformed to a straight-line configuration for implantation. Once placed in a desired ...


2
Blades Herbert: High strength polyamide fibers and films. E I du Pont de Nemours and Company, Schwartz Sol, March 4, 1975: US3869429 (199 worldwide citation)

Fibers and films of extremely high strength, i.e. at least about 18 gpd. consist essentially of certain polyamides. These products have filament and film elongations of at least 3.5% and possess a novel crystalline structure with crystalline regions having a primary apparent crystallite size of less ...


3
Lybarger James H, Scheuerman Ronald F, Karnes George Thomas: Self-acidifying treating fluid positioning process. Shell Oil Company, March 4, 1975: US3868998 (153 worldwide citation)

The positioning of a treating fluid such as an acidifying or particle-carrying fluid, in a subterranean location is improved by injecting a viscous aqueous solution that contains a cellulose ether, a fluoride salt and a relatively slowly reactive acid-yielding material, and subsequently becomes a su ...


4
Blades Herbert: High modulus, high tenacity poly(p-phenylene terephthalamide) fiber. E I du Pont de Nemours and Company, March 4, 1975: US3869430 (147 worldwide citation)

High strength, high modulus fibers having a density of at least 1.4o g./cm..sup.3 and consisting essentially of poly(p-phenylene terephthalamide) of inherent viscosity of at least 4.0 are provided. These fibers have a lateral birefringence of at least 0.022, a novel crystalline structure with crysta ...


5
Marion Charles P, Schlinger Warren G, Brent Albert, Muenger James R: Gas turbine process utilizing purified fuel gas. Texaco, Whaley T H, Ries C G, March 4, 1975: US3868817 (103 worldwide citation)

Gas turbines for producing mechanical and electrical power without polluting the atmosphere are fueled by an improved clean fuel gas having a heat of combustion in the range of about 75-350 BTU/SCF and a mole ratio (CO/H.sub.2) of at least 0.30. The fuel-gas is produced by partial oxidation of a hyd ...


6
Peters Martinus T J: Light-sensitive compositions and light-sensitive materials such as printing plates. Oce van der Grinten, Johnston Albert C, March 4, 1975: US3869292 (88 worldwide citation)

Mixtures of light-sensitive compounds with vinylphenol resins constitute new light-sensitive compositions which are especially valuable for use as light-sensitive coatings of materials such as printing plates. The resin advantageously is a polymer or copolymer of ortho-vinylphenol, and the light-sen ...


7
Fletcher James Administrator of the National Aeronautics and Space, N A, Kuhn Jr Ralph F: Internally supported flexible duct joint. Wofford Jr L D, Wofford Jr L D, Manning John R, March 4, 1975: US3869151 (84 worldwide citation)

An internally supported, flexible duct joint for use in conducting fluids under relatively high pressures in systems where relatively large deflection angles must be accommodated. The joint includes a flexible tubular bellows and an elongated base disposed within the bellows. The base is connected t ...


8
Flavell Evan R: Proportioned resistance exercise servo system. Owen Wickersham & Erickson, March 4, 1975: US3869121 (82 worldwide citation)

A proportional resistance exercise servo device. User interfacing means is connected to a drive shaft so that the user applies force to said drive shaft and vice versa. The device applies braking force to the drive shaft as it is rotated in a first direction by user-exerted force on the interfacing ...


9
Tejeda Alvaro R: System for demineralizing water by electrodialysis. Kirschstein Kirschstein Ottinger & Frank, March 4, 1975: US3869376 (74 worldwide citation)

This disclosure relates to the electrodialytic demineralization of water by passing soft water through a treating chamber defined by a pair of permselective membranes of which the one closer to the cathode of the cell is cationic permselective and the one closer to the anode is anionic permselective ...


10
Kaufer Herbert, Matthews Larry S, Sonstegard David A, Murray Ian P: Knee or elbow prosthesis. Howmedica, Connolly and Hutz, March 4, 1975: US3868730 (72 worldwide citation)

The femoral and tibial components of a knee joint prosthesis are rotatably coupled by a ball and socket connection in which a ball on a connecting rod extending upwardly from the tibial component is engaged up into a high density polyethylene socket insert in the bottom of the femoral component. A p ...



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