1
Seaborn Jr George C: Emergency communication system. Richards Harris & Medlock, October 21, 1975: US3914692 (146 worldwide citation)

The specification discloses an emergency communication system which includes a portable unit for being carried by a wearer. The portable unit includes a radio transmitter and receiver and is operable to selectively transmit and receive coded radio signals. A console is operable to receive the coded ...


2
Muehlberger Erich: Coating heat softened particles by projection in a plasma stream of Mach 1 to Mach 3 velocity. Geotel, Gausewitz Carr & Rothenberg, October 21, 1975: US3914573 (141 worldwide citation)

An electric arc plasma spray gun provides optimum coating of substrates by projecting a stream of plasma at a velocity at or about Mach two, at ambient pressure, and entraining therein particles of material to be coated upon said substrate. Power, pressures and temperatures are employed together wit ...


3
Bross William T: Control circuit for electrosurgical units. Sybron Corporation, Roessel Theodore B, Yeo J Stephen, October 21, 1975: US3913583 (138 worldwide citation)

A control circuit for electrosurgical units which controls power levels to patient electrode in response to load conditions thereof. A saturable reactor is connected in series between the output of the electrosurgical unit and the patient electrodes. The saturable reactor is biased by a control coil ...


4
Okuda Seizi: Squeeze-action clamp. Nifco, Beart Robert W, Halvorsen Jack R, October 21, 1975: US3913187 (131 worldwide citation)

Disclosed is an improved squeeze-action clamp which is molded from thermoplastic synthetic resin as two semicircular halves resiliently hinged together at one end and having joint portions at each of the other ends thereof and which is characterized in that the inner surfaces of the halves have ther ...


5
Ritson Carl, Thomas Ernest Hilton: Cryogenic apparatus. Spembly, Shapiro and Shapiro, October 21, 1975: US3913581 (127 worldwide citation)

The invention relates to cryosurgical instruments in which gas cooling by Joule-Thomson expansion is employed in an applicator adapted to contact and thermally cool human tissue, the gas in the cooling mode being carried to an orifice, for expansion therethrough, by a first duct and led away to atmo ...


6
Lichtblau George Jay: Planar circuit fabrication process. Weingarten Maxham & Schurgin, October 21, 1975: US3913219 (110 worldwide citation)

A process for the high volume fabrication of planar electrical circuits having precision electrical characteristics and especially adapted for use in electronic security systems employing resonant circuits. A multiplicity of circuits are formed by high speed printing techniques on opposite surfaces ...


7
Adams James S, Stevens William M: Electronic controls for a hospital bed. Hill Rom Company, Haight Hofeldt Davis & Jambor, October 21, 1975: US3913153 (107 worldwide citation)

Improved electronic controls for an adjustable hospital bed incorporating various logic devices. These devices result in the concurrent operation of several motors in response to the activation of a single switch to produce a desired bed configuration. The motors may operate simultaneously or sequen ...


8
Forbes F Douglas: Methods and apparatus for scrambling and unscrambling premium television channels. The Magnavox Company, Barbee Joe E, Briody Thomas A, Streeter William J, October 21, 1975: US3914534 (107 worldwide citation)

A subscriber television system is disclosed having a central unit coupled by way of a plurality of video channels and a plurality of intermediate processors to individual subscriber locations. The central unit includes means for generating a scrambling code and for sequentially transmitting one or m ...


9
Klensch Richard Joseph: Electronic identification system. RCA Corporation, Norton Edward J, Lazar Joseph D, Lechter Michael A, October 21, 1975: US3914762 (99 worldwide citation)

An electronic detection and identification system operating with correlated microwave frequencies wherein a transmitter continuously transmits a beam of electromagnetic energy, in a predetermined direction, so as to impinge on an identification tag suitably attached on a passing object. The identifi ...


10
Forsman Arnold H: Continuous wave surfing facility. Phillips Moore Weissenberger Lempio & Strabala, October 21, 1975: US3913332 (98 worldwide citation)

A facility is provided having a body of water and wave generator for producing a continuous wave suitable for surfing. A plurality of generators provides serial waves on opposite sides of a tunnel structure having screen grills for preventing surfers from colliding with the wave generators. Both dou ...



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