1
Scholl Hans K: Automatic battery tester with recording means for battery performance. July 13, 1971: US3593099 (152 worldwide citation)

An automatic battery discharger and tester for recording the performance of a battery being discharged under a selected resistance load wherein the battery's current and voltage are continuously monitored and compared against preselected current and voltage values, and includes means for maintaining ...


2
Geusic Joseph E, Scovil Henry E D: Electro-luminescent device. Bell Telephone Laboratories Incorporated, July 13, 1971: US3593055 (106 worldwide citation)

Increased light output results from certain design modifications in a GaAs infrared emitting diode coated with a phosphor for converting this emission to visible light. These design modifications include shape and dimensional considerations for minimizing internal reflection and absorption of infrar ...


3
Aysta James E, Tacke William H P: Freestanding acoustical space divider. Conwed Corporation, July 13, 1971: US3592289 (102 worldwide citation)

This invention relates to a freestanding acoustical space divider in which an acoustically absorptive panel is supported around its periphery by a metal frame assembled without the use of the usual fasteners such as screws or bolts and in which adjacent sections are flexibly connected by means of a ...


4
Watkins David H, Klink Erwin J: Heart assist method and catheter. July 13, 1971: US3592184 (92 worldwide citation)

Method and device for augmenting the action of an ailing heart having an incompetent aortic valve, wherein blood is sucked up from the aorta, while blocking flow to the arterial tree, and then, upon reverse, a major portion of the blood is forced into the arterial tree and a minor portion forced int ...


5
Oster Claude: Cytologic scraper. July 13, 1971: US3592186 (83 worldwide citation)

An apparatus adapted to be self-administered for obtaining surface cells from a human being, particularly from the vaginal and cervical areas of a female, for use in diagnosing cancer, the apparatus having a spatulalike scraper of heartlike configuration with two dissimilarly shaped lobes for taking ...


6
Driscoll Jr Graham C, Mullery Alvin P: Arrangement for automatically selecting units for task executions in data processing systems. International Business Machines Corporation, July 13, 1971: US3593300 (76 worldwide citation)

An arrangement in a data processing system which comprises a multiplicity of active components, or entities, such as processors, I/O devices, channels, etc., that have overlapping but not necessarily identical capabilities wherein there is enabled an automatic selection of an active entity for the e ...


7
Ostensen Ralph G: Autoclavable surgical instrument illumination. Medical Products, July 13, 1971: US3592199 (72 worldwide citation)

An autoclavable surgical instrument for directly illuminating interior portions of a human body having a distal end for insertion into a body cavity and a proximal end including a handle portion, a fiber optics device extending from a point adjacent the distal end to a proximal end adjacent the hand ...


8
Dodson Michael, Gomez Raymond J: Apparatus and method for exhaust analysis. Beckman Instruments, July 13, 1971: US3593023 (69 worldwide citation)

An apparatus and method for determining the content of certain constituents in hot gases, such as the exhaust of motor vehicles or the like. The exhaust gas is conveyed by a pump to an air cooled condenser to lower the temperature of the gas to essentially ambient temperature and thus condense water ...


9
Parsons Billie D: Revolving step exerciser with adjustable slope. July 13, 1971: US3592466 (67 worldwide citation)

An upwardly and rearwardly sloping treadmill, having steps thereon, mounted in a supporting structure for adjustment of the slope of the treadmill. Fluid pressure means includes a control valve and a pump operatively connected to the treadmill and operated thereby to generate resistance of the tread ...


10
Shill Karl E: Memory-disc cartridge with loading mechanism. The Singer Company, July 13, 1971: US3593327 (64 worldwide citation)

A magnetic disc cartridge is insertable through a slot into a drive housing. Such insertion opens a shutter in the cartridge and unlocks a lowering mechanism. Closing of a door to the slot lowers the cartridge to set the memory disc onto a drive spindle where it is held magnetically. Operation of th ...



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