1
Paul Gauselmann: Slot machine. ADP Automaten, Oblon Fisher Spivak McClelland & Maier, April 15, 1980: US04198052 (303 worldwide citation)

A slot machine with at least three coaxially disposed wheels having a plurality of playing symbols on the peripheries thereof, wherein a plurality of columns of windows, one column for each window, are disposed in front of the wheels to enable viewing of a preselected number of symbols of each wheel ...


2
Alexander Beck, Jean Marcel Piffaretti, Dietmar Weinmann: Permanent magnet device for implantation. BBC Brown Boveri & Company, Oblon Fisher Spivak McClelland & Maier, April 15, 1980: US04197840 (258 worldwide citation)

A permanent magnet device for implantation in the eyelids including at least two magnet bodies enclosed in substantially shape-dependent manner by an enveloping body consisting of a ductile, tissue-compatible material, the enveloping body being substantially gastight and having at least one constric ...


3
Harish R Anada: Process for in situ coal gasification. Ramcor, James J Brown, April 15, 1980: US04197911 (226 worldwide citation)

In situ coal gasification to form a methane rich gas is carried out by injecting a lower aliphatic alcohol such as methanol into a coal seam, raising the temperature to cause dissociation of the alcohol and injecting water into the same. Nascent hydrogen is produced which reacts with the coal to for ...


4
Masanori Nagata: Money transaction system. Omron Tateisi Electronics Co, Sughrue Rothwell Mion Zinn and Macpeak, April 15, 1980: US04197986 (201 worldwide citation)

A transaction system comprising a card having a card balance recorded therein, at least one terminal transaction processor operable on the basis of on-line and off-line computer schemes, and a center operatively associated with the terminal transaction processor and having a file for recording there ...


5
David H Alexander, George H Hershman, Michael D Jack, N John Koda, Randahl B Lloyd: Monolithic imager for near-IR. Hughes Aircraft Company, Elliott N Kramsky, W H MacAllister, April 15, 1980: US04198646 (147 worldwide citation)

A monolithic imager utilizing a plurality of detector cells is formed on a common intrinsic substrate. Backside illumination in the near-IR region generates hole-electron pairs in the intrinsic material which may be depleted throughout its thickness by CCD-range voltages applied by the imager's read ...


6
James F Simko: Insulating jacket for bottles. Barnes Kisselle Raisch & Choate, April 15, 1980: US04197890 (144 worldwide citation)

An insulation jacket for beverage bottles which includes a cylindrical wrapper of thin flexible insulating material shaped to fit a bottle combined with one or more elastic elongate inserts to permit the wrapper to adjust to various diameters and also fit snugly around a bottle. Top and bottom closu ...


7
Bernard Jacquet, Gerard Lang: Treating hair with quaternized polymers. L Oreal, Cushman Darby & Cushman, April 15, 1980: US04197865 (142 worldwide citation)

A quaternized polymer having recurring units of the formula ##STR1## wherein X.sup..crclbar. represents an anion derived from an organic or mineral acid;


8
Louis Bucalo: Method for structure for situating in a living body agents for treating the body. Steinberg & Blake, April 15, 1980: US04197846 (124 worldwide citation)

By way of a suitable syringe, for example, there is injected into the tissue of a living being an absorbable viscous substance in which a plurality of solid bodies are suspended to an extent sufficient to be distributed throughout the viscous substance and in an amount sufficient to change the chara ...


9
Robert B Northrop: Ultrasonic respiration/convulsion monitoring apparatus and method for its use. April 15, 1980: US04197856 (120 worldwide citation)

Apparatus for monitoring respiratory and/or convulsive movements includes a closed loop phase lock system which measures changes in the air path length of continuous wave ultrasound transmitted to and reflected from (the chest/abdomen area of) a subject, and provides an output change signal proporti ...


10
Joseph H Schulman, Jozef I Kie Sioe Tan: Implantable human tissue stimulator with memory protect means. Pacesetter Systems, Freilich Hornbaker Wasserman Rosen & Fernandez, April 15, 1980: US04197850 (116 worldwide citation)

In an implantable human tissue stimulator with a volatile memory an arrangement is provided to protect against the stimulating circuitry producing pulses as a function of unknown parameters in the memory, as a result of inadequate power to the memory from a rechargeable power source, e.g. a recharge ...