61
Charles G Clark, Jack D Clark: Variable resistance exercise apparatus. Burton Parker & Schramm, September 10, 1985: US04540171 (58 worldwide citation)

An apparatus for muscular exercise where the user conducts a repetitive motion under load. The apparatus is coupled to the user to exercise the desired muscle group. When muscle is undergoing a shortening motion it is subjected to a load. At the completion of the shortening motion the load is automa ...


62
John P Cannady: Hydrosilazane polymers from [R.sub.3 Si].sub.2 NH and HSiCl.sub.3. Dow Corning Corporation, Richard A Kaba, September 10, 1985: US04540803 (57 worldwide citation)

A process is disclosed for preparing R.sub.3 SiNH-containing hydrosilazane polymer by contacting and reacting trichlorosilane with a disilazane [R.sub.3 Si].sub.2 NH where R is vinyl, hydrogen, phenyl, or alkyl radicals containing 1 to 3 carbon atoms. These hydrosilazane polymers are useful, when fi ...


63
Jack J Stiffler, Michael J Budwey, James M Nolan Jr: Self-checking computer circuitry. Sequoia Systems, Wolf Greenfield & Sacks, September 10, 1985: US04541094 (56 worldwide citation)

Circuitry for a fault-tolerant computer is disclosed which circuitry is constructed in two identical halves. Each half, by itself, is not a functionally-complete circuit, however, the two identical halves can be connected together to provide a functionally-complete circuit. Each of the two circuit h ...


64
Richard V Landries, Robert A Ress Jr: Latch for terminal block. General Motors Corporation, Saul Schwartz, September 10, 1985: US04541036 (55 worldwide citation)

A latch for releasably maintaining a terminal block in an installed position in a panel aperture includes a U-shaped frame, guides on the terminal block at a leading edge thereof integral with the distal ends of the parallel arms of the frame supporting the latter on the terminal block in cantilever ...


65
Royal W Barnard: Compact water purifying device. Charles A Brown, Charles E Brown, September 10, 1985: US04540489 (55 worldwide citation)

A compact water purifier is described in which three filters are contained within a single container. The first filter in the sequence is a pre-filter designed to remove large particles from the flow stream, the second an activated carbon filter for the adsorption of toxic chemicals, and the third a ...


66
Friedrich Hornung, Fritz Schadlich: Rotary electrical tool with speed control, especially drill. Robert Bosch, Frishauf Holtz Goodman & Woodward, September 10, 1985: US04540318 (55 worldwide citation)

To provide for, selectively, control of the speed of a tool, such as a drill or boring tool coupled to an electric drill or boring machine motor, independently of the setting of a multi-speed transmission, speed of the tool is sensed by a contactless transducer (4, 7), one part of which is coupled t ...


67
Tommy G Clement: Power operated targets for shooting ranges. Browdy and Neimark, September 10, 1985: US04540182 (55 worldwide citation)

A target apparatus using heavy silhouette targets has a power operated resetting mechanism. Resetting may be activated by a falling target, after being hit, striking a switch. A reset spring can be fully loaded by the weight of the falling target to aid in resetting the target which may also be coun ...


68
Janos Kiszel, Laszlo Papp, Laszlo Nagy: Respirator device particularly for use in perinatal medicine. Vas es Moszeripari Szovetkezet, Handal & Morofsky, September 10, 1985: US04539984 (55 worldwide citation)

A respirator device especially for the respiratory treatment of new-born and inmate infants and for their adaptation to natural breathing. The device comprises oxygen and air ducts, means for adjusting the composition, temperature, humidity, and other parameters of the gas mixture, a patient junctio ...


69
Tsuyoshi Shiragasawa: Semiconductor memory device. Matsushita Electric Industrial, Cushman Darby & Cushman, September 10, 1985: US04541090 (55 worldwide citation)

A large capacity memory is improved so as to reduce its testing time length. Memory arrays are divided into a plural number of memory blocks having common address signal lines and common input/output lines, each memory block is provided with respective comparators thereby enabling testings of the pl ...


70
Curtis L Karl: Synergistic thickener mixtures of amps polymers with other thickeners. Henkel Corporation, Ernest G Szoke, Patrick J Span, J Daniel Wood, September 10, 1985: US04540510 (54 worldwide citation)

Synergistic thickener mixture comprising a mixture of a polymer of 2-acrylamido-2-methylpropane sulfonic acid and certain water soluble polymers such as the galactomannan gums, derivatives thereof, cellulose derivatives and polyoxyalkylene oxide polymers. The composition finds utility in earth forma ...