1
Andres R Lucero, David E Williams, James L Nelson: Cash accounting and surveillance system for games. Summit Systems, Blakely Sokoloff Taylor & Zafman, August 11, 1981: US04283709 (439 worldwide citation)

A cash accounting and surveillance system for games, whereby operation of a number of player operated gaming devices may be monitored for purposes of detecting abnormal operation and/or cheating and for providing automatic accounting information for record keeping and pilferage detection purposes. T ...


2
Manfred Franetzki, Klaus Gagneur, Karl Prestele: Device for the pre-programmable infusion of liquids. Siemens Aktiengesellschaft, Hill Van Santen Steadman Chiara & Simpson, August 11, 1981: US04282872 (270 worldwide citation)

Particularly for diabetes therapy, it is desirable to continuously infuse insulin in different rates into the body of the patient, because the insulin requirements of the diabetic are subject to great fluctuations. Therefore, a control device serves as the program transmitter for a microdosing unit. ...


3
John P Chambers: Cyclic redundancy data check encoding method and apparatus. British Broadcasting Corporation, Robert F O Connell, August 11, 1981: US04283787 (191 worldwide citation)

A cyclic redundancy check word is customarily placed at the end of a data block, occupying one or more of the last bytes of the block. This can impose an undesirable restraint upon the person composing the data block, e.g. the editor of a teletext page. The invention allows the check word effectivel ...


4
Larry F Lee: Paper currency acceptor. Rowe International, Shenier & O Connor, August 11, 1981: US04283708 (187 worldwide citation)

Apparatus for accepting a U.S. bill or other paper currency having a portrait area printed with magnetic ink with spaced parallel lines in the background portions thereof. A pair of zones of predetermined length normally containing said portions and disposed a predetermined distance from an edge of ...


5
Anthony J Antonious: Heel restraint with an adjustable and flexible closure assembly for shoes. Nicholas J Aquilino, August 11, 1981: US04282657 (139 worldwide citation)

A shoe having a heel restraint secured by an adjustable and flexible closure assembly utilizing separable fastening members having coacting, flexible gripping elements, such as hook and loop fastening means and operating separately from the fastening means to fasten the shoe. The closure assembly in ...


6
William C Winters, Hsien Hsin Chang, George R Anderson, Ross A Easter, Jeffrey J Sholl: Microwave heating package, method and susceptor composition. The Pillsbury Company, Robert J Lewis, Michael D Ellwein, August 11, 1981: US04283427 (139 worldwide citation)

A microwave heating package, and a method of microwave heating. Both the package and the method employ a lossy chemical susceptor which upon continued exposure to microwave radiation becomes substantially microwave transparent, thus building into the system a unique maximum temperature shut off at t ...


7
Manfred Boebel: Device for obtaining tissue samples. Richard Wolf, Kinzer Plyer Dorn & McEachran, August 11, 1981: US04282884 (137 worldwide citation)

A device for obtaining tissue samples of the kind having tong-like handle members and in which a punch assembly provided with a distal recess and a cutting edge is axially extensible from a shaft and insertable in a tube provided with a counter cutting edge. According to the invention the punch asse ...


8
Harald Philipp: Waveform acquisition circuit. Tektronix, George T Noe, August 11, 1981: US04283713 (128 worldwide citation)

A waveform acquisition circuit for both real-time and equivalent-time acquisition modes with a smooth transition between modes. The circuit includes a control circuit which causes an analog-to-digital converter to take samples of an analog waveform in precise time relationship with preselected data ...


9
Robert E McCaslin: Electronic wand. John L McGannon, August 11, 1981: US04282681 (115 worldwide citation)

A wand adapted to be held in the hand and provided with a rod-like body provided with a handle having a base at one end and a visual indicator at the opposite end. The base defines a handle for grasping the wand and the base is hollow to house an electronic circuit and a battery for operating the ci ...


10
Donald A Rosenwinkel, Harry Disko: Novelty eyeglasses. Marvin Glass & Associates, Mason Kolehmainen Rathburn & Wyss, August 11, 1981: US04283127 (107 worldwide citation)

A pair of novelty eyeglasses includes a frame for supporting them on the wearer's head and a pair of transparent lenses. The frame includes a pair of support earpieces connected by hinges to the frames. Two light emitting diodes or LEDs are secured to the frame, one adjacent each lense and connected ...