61
Franz Sutter, Fritz Straumann: Universal joint prosthesis with cap. Institut Straumann, McGlew and Tuttle, June 1, 1982: US04332036 (47 worldwide citation)

A prosthesis for forming the spherical part of a hip joint with a calotte-shaped cap is disclosed. The inner surface of the prosthesis is provided with grooves and ribs which are evenly distributed over the circumference of the inner surface and extend along planes which, in turn, extend through the ...


62
Hiroshi Mano: Porous structure of polytetrafluoroethylene and process for production thereof. Sumitomo Electric, Sughrue Mion Zinn Macpeak and Seas, June 1, 1982: US04332035 (47 worldwide citation)

A porous polytetrafluoroethylene material is disclosed having a molecular microfibrous structure having, at one surface, a strong orientation in a given direction and, at another opposite surface, a strong orientation and a direction at right angles to the first, in which the orientation of the micr ...


63
James M Van Auwelaer, Eugene B Hutchinson, Jerome A Braet: Automatic height control for a harvester header. Deere & Company, June 1, 1982: US04332126 (46 worldwide citation)

A self-propelled combine harvester is equipped with a grain cutting platform having a floating, flexible cutter bar. The operating height of the grain platform is controlled conventionally by hydraulic cylinders. An automatic operating mode may be chosen in which the hydraulic cylinders are responsi ...


64
Bruce E Johnson: Disc head arm position controller using digital velocity sensing. Magnetic Peripherals, Edward L Schwarz, Joseph A Genovese, June 1, 1982: US04333117 (46 worldwide citation)

Electronic circuitry for improving the speed and accuracy of shifting the magnetic heads of a disk memory from one to another track cylinder. Head velocity is measured with great accuracy by measuring the servo head transit time between adjacent tracks of the servo disk. A microprocessor controller ...


65
Isao Ota, Haruhiro Shirazawa, Toshio Tatsumichi, Hiroshi Kawarada, Tetsuro Ohtsuka: Method of producing thin film transistor array. Matsushita Electric Industrial, Wenderoth Lind & Ponack, June 1, 1982: US04332075 (46 worldwide citation)

A method of producing thin film transistor arrays and having at least 7 steps including: a first step of forming a first electrode layer uniformly over an insulating substrate; a second step of forming electrodes, such as drain and source electrodes and bus bars with a desired pattern by photoetchin ...


66
Tore B Muller: Process for continuous crystallization. Watson Cole Grindle & Watson, June 1, 1982: US04332592 (46 worldwide citation)

A process for the continuous crystallization of at least one crystallizable material from a solution wherein a series of crystallization stages are utilized, with partial crystallization taking place in each stage. The process includes the classification of partially crystallized suspension between ...


67
R Clark DuBois, John C Hamma: Compact sorter. Gradco Dendoki, Newton H Lee Jr, June 1, 1982: US04332377 (45 worldwide citation)

A sorting machine is provided for attachment to a copying machine to receive successive sheets from an outlet from the copying machine. The sorting machine has plural trays mounted to move progressively past the sheet outlet in opposite directions, the trays being relatively close together when posi ...


68
Alvin M Goodman: Method and apparatus for determining minority carrier diffusion length in semiconductors. RCA Corporation, Birgit E Morris, Donald S Cohen, Joseph D Lazar, June 1, 1982: US04333051 (44 worldwide citation)

Method and apparatus are provided for determining the diffusion length of minority carriers in semiconductors using the constant-magnitude surface-photovoltage (SPV) method. A servo system maintains a constant predetermined value of the SPV. A novel capacitance-pickup electrode couples the SPV to a ...


69
Toshio Yoshida, Shigetomo Matsui: Method of producing multiple-wall composite pipes. Kawasaki Jukogyo Kabushiki Kaisha, Martin Smolowitz, June 1, 1982: US04332073 (44 worldwide citation)

An outer pipe is diametrically expanded by heating and an inner pipe is diametrically contracted by cooling with a coolant introduced into the inner pipe to produce between the pipes a clearance just sufficient for insertion of the inner pipe into the outer pipe, and then the coolant is pressurized ...


70
Marvin C Cheney Jr: Matched stiffness rotor flexbeam and blade system. United Technologies Corporation, Harry J Gwinnell, June 1, 1982: US04332525 (44 worldwide citation)

A flexbeam having matched in-plane and out-of-plane stiffness is described extending at least partway between the tips of a pair of rotor blades bonded thereto. The flexbeam so constituted produces a blade system with a primary in-plane frequency less than the primary forcing frequency. The matched ...