Mandel Louis, Ong Algernon M, Singer Paul: Ambulatory patient monitoring system. The United States of America represented by the Secretary of the Navy, Sciascia R S, Rubens G J, Phillips T M, August 12, 1975: US3898984 (404 worldwide citation)

An apparatus for automatically monitoring critical body functions of one or ore patients by means of telemetry restricted to the use of a single assigned RF carrier frequency. A logic circuit provides for generating a synchronized coded word for interrogating a transponder. The transponder has sensi ...

Sorenson Keith S, Lewis David E: Subscription television system. Columbia Pictures, Kenyon & Kenyon Reilly Carr & Chapin, August 12, 1975: US3899633 (133 worldwide citation)

A subscription television system, in which secure television signals modulated on carriers not directly receivable by a standard television set are impressed upon a master cable system extending to subscriber stations having converter means to receive selected secure channels. Each subscriber statio ...

Cleveley John B, Laubman Kenneth C: System and method for reading remotely located meters. The City of Edmonton, Wymore Max L, August 12, 1975: US3899639 (116 worldwide citation)

A telephone number calling unit is programmed by a computer to dial data calls to selected telephone numbers by operating telephone line switching circuitry to connect a selected set of telephone lines to the computer through centrally located telephone test trunk circuitry and a meter reading trans ...

Morris Harold D, Sigworth Frederick J: Angular position sensing and control system, apparatus and method. Systron Donner Corporation, Flehr Hohbach Test Albritton & Herbert, August 12, 1975: US3899028 (106 worldwide citation)

A structural body is monitored in angular position about at least one axis by utilizing a level sensor and a sensor responsive to angular motion of the body about the axis being monitored. An output indicative of long term angular variations of the body about the axis is provided by the level sensor ...

Samhammer Clair A, Lederman Steven N: Bean-bag chair. Lederman s Incorporated, Spensley Horn & Lubitz, August 12, 1975: US3899210 (105 worldwide citation)

A chair comprised of a fully enclosed, large, flexible bag which is partially filled with a plurality of resilient polystyrene pellets, commonly referred to as a 'bean-bag' and a supporting structure adapted to maintain the bean-bag above the floor at a level which is normal for sitting, thereby enh ...

Hoehn Harvey Herbert, Richter John W: Aromatic polyimide, polyester and polyamide separation membranes. E I du Pont de Nemours & Co, August 12, 1975: US3899309 (90 worldwide citation)

Gas separation membranes are made from aromatic polyimides, polyesters and polyamides in which the repeating unit of the main polymer chainA. has at least one rigid divalent subunit, the two main chain single bonds extending from which are not colinear,B. is sterically unable to rotate 360.degree. a ...

Halpern Donald F: Integrity indicator. Bio Medical Sciences, Lagani Jr Anthony, August 12, 1975: US3899295 (87 worldwide citation)

A system for indicating the integrity of a normally sealed package utilizes a sensor containing a pH sensitive dye which displays a first color at normal atmospheric pH and a second color above normal atmospheric pH. An artificial atmosphere containing a basic gaseous material, which maintains the d ...

Petrovich John P, Taylor David L: Treating compositions. Monsanto Company, Willis N E, Maurer J E, Shearin F D, August 12, 1975: US3899388 (75 worldwide citation)

Compositions comprising (I) reaction products of (A) adducts of certain dihaloalkanes and polyalkylenepolyamines and (B) certain epihalohydrins, (II) polyanionic phosphorus compounds and (III) water. Such compositions may be added to cellulosic substrates to increase wet and dry strength.

Jones Paul W: Optical label scanning. Identicon Corporation, Hieken Charles, Cohen Jerry, August 12, 1975: US3899687 (72 worldwide citation)

A scanning optical reader illuminates and reads data from labels of items on a conveyor. The optical reader is aligned within the extended vertical envelope of the conveyor. The reader comprises a polarized light source for illuminating the label and a detector which is cross-polarized with respect ...

Stover Harris A: Communication systems. Hill Gross Simpson Van Santen Steadman Chiara & Simpson, August 12, 1975: US3899671 (68 worldwide citation)

An automobile communication system which provides for transmitting stations located along highways and facilities located in vehicles such that the vehicle can receive information as to stop signs, whether the vehicle should turn left or right or proceed straight forward, distances to particular lan ...