Terry Ruel C, Stoddard Xerxes T: Method of extracting immobile hydrocarbons. Ruel C Terry, Xerxes T Stoddard, Polumbus Gary M, May 6, 1975: US3881551 (201 worldwide citation)

A method of extracting immobile hydrocarbons includes the steps of sinking spaced wells into the hydrocarbon formation, fracturing the formation near the bottom of the wells to establish subsurface communication between the wells, passing a heated fluid through the wells and the hydrocarbon formatio ...

Johnstone Richard: Diagnostic communication system for computer controlled machine tools. Kearney & Treaker Corporation, Hill Gross Simpson Van Santen Steadman Chiara & Simpson, May 6, 1975: US3882305 (141 worldwide citation)

A diagnostic communication system for machine tools interlinks a computer controlled machine tool with diagnostic and analysis equipment located at a location remote from the machine tool. The computer associated with the machine tool is connected with the diagnostic apparatus over a telephone line, ...

Whitehead Howard A, Braun Ralph V: Thin, flexible absorbent pads. Kimberly Clark Corporation, Hanlon Jr Daniel J, Herrick William D, Miller Raymond J, May 6, 1975: US3881490 (136 worldwide citation)

Thin, absorbent pads with soft, flexible edges. The pad structure comprises a fluid pervious non-woven cover sheet, a central absorbent batt of comminuted wood pulp fibers, and a fluid-impervious backing element. Each element is coextensive with the others. The integrity of the central absorbent bat ...

Hartwell Edward Wallace: Breathable, liquid inpervious backsheet for absorptive devices. The Procter & Gamble Company, Braun Frederick H, Gorman John V, Witte Monte D, May 6, 1975: US3881489 (134 worldwide citation)

A backing for a disposable diaper being a combination of two layers. The first layer is a low void volume perforated thermoplastic film. The second layer is a porous high void volume hydrophobic tissue which is adjacent the first layer.

Clayton Eugene Thomas, Johnston Ruth Elinor, Rector James M: Cleaner compositions. Union Carbide Corporation, Brown Robert C, May 6, 1975: US3882038 (126 worldwide citation)

A relatively non-toxic cleaner formulation comprised of a surfactant, water and at least one solvent having the formulaI. ro(c.sub.2 h.sub.4 o).sub.u H,Ii. r'o(c.sub.3 h.sub.6 o).sub.v H,Iii. r'o(c.sub.2 h.sub.4 o).sub.w (C.sub.3 H.sub.6 O).sub.x R',Iv. r''o(c.sub.2 h.sub.4 o).sub.y R'' (OC.sub.2 H. ...

Rate Jr Edward T, Heiting Robert F: Gridded X-ray tube gun. General Electric Company, Hohenfeldt Ralph G, Wiviott Fred, May 6, 1975: US3882339 (114 worldwide citation)

An X-ray generator has a Pierce type electron gun comprising an electron emissive cathode, field shaping electrodes connected thereto, a first accelerating anode spaced from the cathode and an X-ray target anode spaced from the accelerating anode for being impinged upon by a focused electron beam. C ...

Harney Ralph P: Hotel-motel pay TV system. Oak, Kinzer Plyer Dorn & McEachran, May 6, 1975: US3882392 (102 worldwide citation)

A subscription TV system includes a central station, various TV receivers and cable connections between the central station and receivers. There are means at each receiver for decoding TV signals received from the central station. Also at each receiver is a means for placing the decoder in operation ...

Walding Eugene C, Cummings John G: Binary coded rotary wafer type switch assembly. Oak, Kinzer Plyer Dorn & McEachran, May 6, 1975: US3882289 (96 worldwide citation)

A means for determining position of a rotary television channel selector switch having at least 26 finite positions includes rotary and stationary coding means, with the rotary means moving with the channel selector switch. The stationary means has a single input and five outputs, with the connectio ...

Kendall Don Leslie: Method of making a solid state inductor. Texas Instruments Incorporated, Levine Harold, Comfort James T, May 6, 1975: US3881244 (94 worldwide citation)

Disclosed is a solid state inductor which is formed in a monocrystalline semiconductor body. An electrically isolated helix comprised of conductive studs selectively interconnected by electrical contacts circumscribes an electrically isolated core material. Typically the studs are comprised of the s ...

Gordon Harry W, Storz Gunther: Intra-uterine contraceptive device. Schmid Laboratories, Darby & Darby, May 6, 1975: US3881475 (94 worldwide citation)

An intra-uterine contraceptive device having a pair of loops extending in opposite directions from a common stem. Each loop has a free end. The character and thickness of the material forming the loops and the shape of the loops are such as to permit the loops to more readily conform to the walls of ...