1
Rowland William P: Retroreflective material. Rowland Development Corporation, August 15, 1972: US3684348 (250 worldwide citation)

Retroreflective material is provided by a composite synthetic plastic structure having a body portion with one smooth surface and another surface from which project a multiplicity of separately formed, minute cube corner formations having a side edge dimension of less than 0.025 inch. The cube corne ...


2
Anderson Robert K: Electrosurgery safety circuit. Valleylab, August 15, 1972: US3683923 (200 worldwide citation)

A safety circuit suitable for use in electrosurgery apparatus to prevent electrical burns is described herein. A current sensing transformer having a pair of primary windings and a single secondary or sense winding is provided. The primary windings are connected so as to compare the input current ap ...


3
Suzuki Jiro: Tube for connecting blood vessels. Dainippon Pharmaceutical, August 15, 1972: US3683926 (171 worldwide citation)

A tube readily soluble into blood and useful as the support for connecting blood vessels, which is made of a composition comprising 70 to 90 percent by weight of sucrose, 6 to 25 percent by weight of a crystallization inhibitor therefor and 2 to 10 percent by weight of an elasticizer, shaped in a cy ...


4
Christie John B, Robison Glenn W, Runquist Jr Raymond C: Color bar code tag reader with light-emitting diodes. The National Cash Register Company, August 15, 1972: US3684868 (125 worldwide citation)

A color bar code reader used for detecting and reading recorded indicia having different and distinct light reflective characteristics; i.e., being manifested in the form of colored bars. The reader utilizes a photosensor and two light-emitting diodes, each having a particular output wavelength. The ...


5
McVoy David S: Television communications system. Coaxial Scientific Corporation, August 15, 1972: US3684823 (112 worldwide citation)

A cable television communications system has signal processing headend equipment that emits a low frequency control signal that modulates the audio carrier. The control signal is transmitted over the cable along with the video and audio information. The control signal actuates control circuitry in a ...


6
Stemmer August L, Kahn Paul, Stubstad James A: Bone prosthesis. Cutter Laboratories, August 15, 1972: US3683422 (106 worldwide citation)

A prosthetic device with sub-periosteal, periosteal, or bone surface attachment for stress support, comprising a rigid reinforcing member and an elastomer-impregnated fibrous or woven fabric covering such member and firmly fixed to it. In one embodiment, a fibrous reinforced elastomer condyle-like m ...


7
Wallshein Melvin: Orthodontic systems. August 15, 1972: US3683502 (100 worldwide citation)

A rigid arch wire is fixed in position on bracket-holding tooth bands on selected teeth. Every tooth whose root is to be shifted, has one of such bands thereon, and the bracket associated therewith is rotatably mounted on the arch wire. Any tooth to be swung in, about its root tip as an axis, needs ...


8
Helmrich William F: Aerating fuel nozzle. Ex Cell O Corporation, August 15, 1972: US3684186 (98 worldwide citation)

An aerating fuel nozzle for a gas turbine engine combustion chamber. The nozzle has an annular fuel swirl chamber from which the fuel issues in a spray cone, blending with inner and outer layers of swirling air. Air from the engine compressor is mixed with the fuel to obtain a high degree of air-fue ...


9
McCormick James B: Protective seal for catheter. Pelam, August 15, 1972: US3683911 (81 worldwide citation)

A device for providing a protective seal at an incision provided incident to the insertion of a catheter beneath the skin includes a shield having an adhesive coating on one surface so that the shield adheres to the skin in the area of the incision to prevent bacteria from passing beneath the shield ...


10
Lessard Donald E: Ranger-finder in a telescopic sight. August 15, 1972: US3684376 (78 worldwide citation)

This invention relates to a range-indicating, variable-power telescopic sight; based on the principle of comparing adjustable spaced reference elements, with known target dimensions, reading said comparison on a scale of distance. More specifically, non-magnifying reference elements positioned withi ...



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