1
Robert E Alvarez, Albert Macovski: X-ray spectral decomposition imaging system. The Board of Trustees of Leland Stanford Junior University, June 14, 1977: US04029963 (184 worldwide citation)

Projection measurements are made of the transmitted x-ray beam in low and high energy regions. These are combined in a non-linear processor to produce atomic-number-dependent and density-dependent projection information. This information is used to provide cross-sectional images which are free of sp ...


2
Shin Ojima: Miniaturized calculator keyboard switch assembly having universally pivoted key actuators. Hoshidenkoseizo Kabushiki Kaisha, Pollock Vande Sande & Priddy, June 14, 1977: US04029915 (184 worldwide citation)

A portable electronic calculator comprises a calculator body which supports a keyboard consisting of a single elongated row of keys each of which is adapted to be tilted in any one of four directions by the finger tip of a user to input a selected one of four different information signals from said ...


3
Gordon B French: Method of recovering oil and water from in situ oil shale retort flue gas. Occidental Oil Shale, Christie Parker & Hale, June 14, 1977: US04029360 (158 worldwide citation)

A technique is described for reducing the content of oil and water in the flue gas recovered from the bottom of an underground in situ oil shale retort. In such a retort air is passed downwardly to sustain a combustion zone for retorting oil which is recovered at the bottom. Flue gas recovered from ...


4
John F Dye, Charles R Memhardt: Extremity compression device. The Kendall Company, Powell L Sprunger, June 14, 1977: US04029087 (153 worldwide citation)

A device for applying compressive pressures against a patient's limb from a source of pressurized fluid comprising, an elongated pressure sleeve for enclosing a length of the patient's limb. The sleeve has a plurality of separate fluid pressure chambers progressively arranged longitudinally along th ...


5
Peter Foldes: Multimode coupling system including a funnel-shaped multimode coupler. RCA Corporation, Edward J Norton, Robert L Troike, Leonard Weiss, June 14, 1977: US04030048 (129 worldwide citation)

A multimode coupling system for coupling symmetrical waveguide mode signals and two or more tracking asymmetrical waveguide mode signals includes a funnel-shaped coupler with a plurality of coupling apertures located in the side wall thereof. A first four of these side wall apertures lie in a first ...


6
Klaus Bibl, Bodo W Reinisch: Method and apparatus for transmitting messages to and from remote locations. Lowell Technological Institute Research Foundation, Pearson & Pearson, June 14, 1977: US04030033 (103 worldwide citation)

A method and apparatus for transmitting a message, in digital form, to or from a remote location. In a transmitter, a sequence of predetermined multiple-bit phase codes corresponding to the individual characters in the message phase modulate a carrier wave which also shifts frequency. At a receiving ...


7
Charles W Kerber: Calibrated leak balloon micro-catheter. Lee R Schermerhorn, June 14, 1977: US04029104 (99 worldwide citation)

This is an extremely small and flexible flow guided balloon catheter for use in small and tortuous blood vessels in body organs such as the brain or kidney, for diagnostic angiography. In order to attain such small size and extreme flexibility, a single lumen in the catheter tube serves the dual pur ...


8
Forrest S Wright: Exercising device. Cullen Settle Sloman & Cantor, June 14, 1977: US04029312 (93 worldwide citation)

A weight-lifting or exercising device wherein the spacing of the weights along the length of the bar and the masses of the individual weights may be selectively varied to accommodate people of different sizes and capabilities. Each of the weights is substantially hollow and includes a generally ovoi ...


9
Joseph E Kerwin, Paul M Erlandson: Convenience opening of containers for liquid products. The Continental Group, John J Kowalik, Joseph E Kerwin, William A Dittmann, June 14, 1977: US04029033 (88 worldwide citation)

An easy opening closure for pressurized fluids and a method of making the same. The container has an end panel with multiple small openings and a tape strip of plastic or plastic coated metal foil is secured to the panel by a heat activated adhesive in a way by which the plastic is extruded into the ...


10
Shung Ho Chang, Frederick E Regnier: Chromatographic supports and methods and apparatus for preparing the same. Purdue Research Foundation, John R Nesbitt, June 14, 1977: US04029583 (84 worldwide citation)

Chromatographic supports are disclosed as are methods and apparatus for preparing the same. The support includes an inorganic support matrix that is capable of reacting with silanols, a stationary phase, and an intermediate silane coupling agent having a silicon functional group capable of bonding t ...



Click the thumbnails below to visualize the patent trend.