1
Martin Robert B, Jones Carl T: Nationwide system for selectively distributing information. Gautney & Jones Communications, Rose & Edell, November 12, 1974: US3848193 (180 worldwide citation)

A national warning system utilizes three geographically spaced national warning centers (one primary, two alternates) for controlling and commanding 10 geographically spaced distribution centers which are responsible for transmitting radio signals throughout ten respective regions of the country. De ...


2
Hagenbach Robert J, Lenhard Myron J: Electrostatic imaging process using nodular carriers. Xerox Corporation, November 12, 1974: US3847604 (158 worldwide citation)

An electrostatographic developer mixture comprising nodular carrier beads, the nodular beads having a number average size distribution in the range of 50 to 1,000 microns, and between about 95 to 99.5 weight percent, based upon the developer mixture, of finely divided toner particles electrostatical ...


3
Summers George D: System for transmitting and utilizing supplemental data via television systems. Atlantic Research Corporation, November 12, 1974: US3848082 (145 worldwide citation)

A method and apparatus for transmitting and utilizing supplemental data via television signals. A portion of the field of a video signal is replaced with one or more supplemental data signals, and the modified television signal is transmitted by a television transmitter. The modified television sign ...


4
Weichselbaum Theodore E, Wilhelmson Jack L: Identification system. Sherwood Medical, Garber Stanley N, O Meara William R, November 12, 1974: US3848112 (126 worldwide citation)

An identification bracelet attached to the arm of each patient entering a hospital dispenses a plurality of magnetically coded tags having an adhesive backing for attachment to samples, prescriptions and the like to uniquely identify the source individual. Tag readers located throughout the hospital ...


5
Fischer Artur: Hip joint prosthesis. Striker Michael S, November 12, 1974: US3846846 (124 worldwide citation)

A ball-shaped portion is to form part of the hip joint and a second portion extends from this ball-shaped portion and is to be inserted into an opening in an human femur. The second portion is provided with a passage through which an elongated expander rod is extended which is also to be inserted in ...


6
Raymont William R: Golf club with unit-cell head construction. Holtrichter Jr John, November 12, 1974: US3847399 (122 worldwide citation)

A golf club having a head wherein there is disposed a relatively strong but lightweight unit-cell structure portion between the head's toe and heel portions and immediately behind its generally planar impact face so that the weight of the head is concentrated at the toe, the toe and heel, or the toe ...


7
Grossan Murray: Nasal irrigation system. Miketta Glenny Poms & Smith, November 12, 1974: US3847145 (110 worldwide citation)

A system for nasal irrigation consisting of the application to one nostril, while the patient's head, face down, is positioned in substantially horizontal orientation, of a flow of an isotonic saline water solution at a temperature of from 100.degree. to 105.degree.F and at a pressure pulsating betw ...


8
Shaw Robert F, Sidlauskas David P, Lobdell Donn D: Optical oximeter apparatus and method. Shaw Robert F, Smith A C, November 12, 1974: US3847483 (108 worldwide citation)

An improved oximeter operates at two radiation wavelengths, neither of which need be an isosbestic wavelength, to provide direct and accurate indications of oxygen saturation of blood substantially independently of variation in blood flow velocities, hematocrits and hemoglobin concentrations. Fiber ...


9
Locke Edward V: Apparatus for heat treating a surface. Avco Everett Research Laboratory, Hogan Esq Charles M, Frederick Esq Melvin E, November 12, 1974: US3848104 (106 worldwide citation)

Apparatus using a high power laser beam for heat treating a surface, such as a metal surface to harden the surface scans the metal surface which has been coated with radiation absorbing material such as carbon, so that the scanned areas of the metal surface are rapidly heated to above the critical t ...


10
Weinstock Clifford: Multi-section variable density mattress. Neurological Research and Development Group Incorporated, November 12, 1974: US3846857 (101 worldwide citation)

A mattress possessing particular utility in hospitals and nursing homes reduces the incidence and severity of bed sores, improves muscle tone and reduces back ache. The mattress features plural sections of foam whose densities and degrees of compressibility vary, so that regulated pressures will be ...