1
Robert E Pennington, Michael A Gibson, George T Arnold: Recovery of hydrocarbons from coal. Exxon Research and Engineering Company, James E Reed, December 28, 1976: US03999607 (315 worldwide citation)

Coal liquids and gases are recovered from a thick underground coal seam by drilling one or more boreholes from the earth's surface into the lower part of the seam, burning out the coal over a limited area near the bottom of the seam, collapsing the overlying coal to form a rubblized zone extending v ...


2
Gordhanbhai N Patel, Anthony F Preziosi, Ray H Baughman: Time-temperature history indicators. Allied Chemical Corporation, David W Collins, Ernest A Polin, December 28, 1976: US03999946 (144 worldwide citation)

Compositions containing at least two conjugated acetylene groups (-C.tbd.C-C.tbd.C-) are suitable as integral time-temperature history indicators. These compositions exhibit sequences of irreversible color changes at combinations of times and temperatures specific to each composition. Thus, when sup ...


3
Isao Hamana, Yoshio Fuziwara, Shiro Kumakawa: Process for spinning naphthalate polyester fibers. Teijin, Sherman & Shalloway, December 28, 1976: US04000239 (117 worldwide citation)

A filament, fiber or yarn consisting of a naphthalate polyester containing at least 85 mol % of ethylene-2,6-naphthalate units and having an intrinsic viscosity of 0.45 to 1.0, said filament, fiber or yarn having a diffrection intensity ratio (R) between a bragg refection angle 2.theta. = 187.7.degr ...


4
Josef Berger: Deep channel MOS transistor. Hewlett Packard Company, Ronald E Grubman, December 28, 1976: US04000504 (104 worldwide citation)

A semiconductor charge storage and detection device is provided in which an ion implanted conductive channel is buried between source and drain regions in the bulk of a semiconductor substrate. A charge storage region extends between the channel and the surface of the semiconductor device. The charg ...


5
Raymond T Hebert, John P Ekstrand: Signal processor method and apparatus. Spectra Physics, Flehr Hohbach Test Albritton & Herbert, December 28, 1976: US04000397 (99 worldwide citation)

Method and apparatus for processing input binary encoded analog signals to precisely determine the time occurrence of positive-going and negative-going transitions. Such digital signals result, for example, when bar codes (e.g. Universal Product Codes) are optically scanned. Transitions are determin ...


6
Curtis D Johnson, Lonnie D Antwiler, Larry C McFarland, Arthur R Meyer, Fred J Skahill, Doyle L White, Keith L Witwer, Richard L Wulff: Modular lightweight squad automatic weapon system. The United States of America represented by the Secretary of the Army, Nathan Edelberg, Harold H Card Jr, Robert O Richardson, December 28, 1976: US03999461 (86 worldwide citation)

A lightweight one man portable automatic gas-operated weapon system for intry use having symmetrical forces applied to recoiling parts by use of two parallel gas pressure actuated rods acting in unison. An integral sprocket feed system is actuated by the recoiling parts and avoids gross asymmetrical ...


7
Terry Patrick Bowen, Leon Thomas Ritchie, Homer Ernst Henschen: Light transmitting fiber bundle connector. AMP Incorporated, Russell J Egan, December 28, 1976: US03999837 (80 worldwide citation)

An improved connector is disclosed for interconnecting and terminating bundles of light transmitting fibers in such a manner as to have low light loss at the points of connection. The subject connector is suitable for use in either splicing or terminating individual bundles of light transmitting fib ...


8
Keith M Lang: Shower head water flow reducing device. Leo Gregory, December 28, 1976: US03999714 (76 worldwide citation)

This invention relates to an improvement in a device which reduces the flow of water through a shower head. The invention consists of a unitary cylindrical member being inserted into the delivery end of a water supply line adjacent a shower head connected thereto, the cylindrical member having a res ...


9
Gerald C Person: Atrial pinch on lead and insertion tool. Medtronic, Joseph F Breimayer, Irving S Rappaport, December 28, 1976: US03999555 (74 worldwide citation)

A body implantable lead and insertion tool for attaching the lead to an internal body organ. The lead carries an electrode having first and second spaced organ engaging pincers. The insertion tool comprises jaws for firmly grasping the first and second spaced organ engaging pincers for facilitating ...


10
Britt O Braddick: Well tool for setting and supporting liners. Texas Iron Works, Jack W Hayden, December 28, 1976: US03999605 (72 worldwide citation)

A tubular member or mandrel is provided with an outer housing and a cone shaped enlargement. Segmented cone means is slidably supported on the mandrel between the mandrel and the outer housing and the mandrel includes a portion spaced radially therefrom to define an annular cylinder with the outer h ...



Click the thumbnails below to visualize the patent trend.