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558 records (took 0.018 seconds)

    Inlet duct
    61.
    发明授权
    Inlet duct 失效
    入口管

    公开(公告)号：US3589379A

    公开(公告)日：1971-06-29

    申请号：US3589379D

    申请日：1969-02-17

    Applicant: MC DONNELL DOUGLAS CORP

    Inventor： DAUES JAMES J ,  HARGRAVES DAVID P

    IPC: F02C7/042 ,  F02B27/02

    CPC classification number: F02C7/042 ,  Y10T137/0536

    Abstract: A jet engine inlet duct resembling a duct of the internal compression variety, but having a vent opening in one of its sidewalls for allowing spillage of a sufficient amount of air to permit the establishment of a shock wave system in the duct as the aircraft accelerates to supersonic speeds. The shock wave system includes a normal shock wave which passes downstream in the duct to a throat area therein, and the vent further extends across the region of the normal shock to afford spillage of a limited amount of air from the subsonic region behind the normal shock wave. The duct also includes a rocking ramp pivoted intermediate its ends about an axis transverse to the channel through the duct. The leading edge of the ramp is located forwardly of the channel while its trailing end is in the channel, and accordingly the capture area and throat area of the duct are changed as the inclination of the ramp changes. A sideplate extends downwardly from the ramp so that the inlet functions similar to an internal compression inlet.

    High energy density silver oxide-hydrogen battery
    65.
    发明授权
    High energy density silver oxide-hydrogen battery 失效
    高能量密度银氧化氢电池

    公开(公告)号：US3565691A

    公开(公告)日：1971-02-23

    申请号：US3565691D

    申请日：1968-11-12

    Applicant: MC DONNELL DOUGLAS CORP

    Inventor： STRIER MURRAY P ,  FRANK HARVEY A

    IPC: H01M2/16 ,  H01M35/02

    CPC classification number: H01M2/1646

    Abstract: A SOLID-FLUID CELL OR BATTERY HAVING A SILVER OXIDE CATHODE, A HYDROGEN CATALYST ANODE, A SEPARATOR COMPRISING AN INORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) A SOLID SOLUTION CONSISTING ESSENTIALLY OF MAGNESIUM SILICATE AND IRON SILICATE, (B) ZIRCONIA AND (C) ALUMINA, POSITIONED BETWEEN THE ELECTRODES, AND ELECTROLYTE MATERIAL, E.G., A 30% AQUEOUS SOLUTION OF KOH, RETAINED IN SAID SEPARATOR, TO PROVIDE AN IMPROVED HIGH ENERGY DENSITY BATTERY OF THIS TYPE.

    Modified cellulose ester semipermeable membrane and its method of manufacture
    66.
    发明授权
    Modified cellulose ester semipermeable membrane and its method of manufacture 失效
    改性纤维素ESTER可切割膜及其制备方法

    公开(公告)号：US3560232A

    公开(公告)日：1971-02-02

    申请号：US3560232D

    申请日：1967-12-29

    Applicant: MC DONNELL DOUGLAS CORP

    Inventor： LITTMAN FRED E

    IPC: C08B3/00 ,  B29D27/04

    CPC classification number: B01D71/14 ,  B01D67/0009 ,  B01D71/82

    Abstract: CELLULOSE ESTER, ESPECIALLY CELLULOSE ACETATE, SEMIPERMEABLE MEMBRANES HAVING SUPERIOR PERMEATION PROPERTIES OF FLUX AND SOLUTE REJECTION WHICH ARE PARTICULARLY SUITED FOR DESALINATION OF AQUEOUS SALT SOLUTIONS BY REVERSE OSMOSIS PRODUCED BY A METHOD WHICH INCLUDES PRETREATMENT OF THE CELLULOSE ESTER MATERIAL IN THE FORM OF AN INERT SOLVENT SOLUTION WITH CATALYTIC AMOUNTS OF A CONCENTRATED STRONG ACID PRIOR TO CASTING THE CELLULOSE ESTER MATERIAL INTO A FILM. METHOD FOR PRODUCING THE ABOVE DESCRIBED MEMBRANE, AND METHOD FOR DESALINATION OF SALT WATER EMPLOYING THE ABOVE DESCRIBED MEMBRANE.

    Powered hoist-baggage container handling system
    67.
    发明授权
    Powered hoist-baggage container handling system 失效
    动力套管集装箱搬运系统

    公开(公告)号：US3552587A

    公开(公告)日：1971-01-05

    申请号：US3552587D

    申请日：1968-04-16

    Applicant: MC DONNELL DOUGLAS CORP

    Inventor： WARREN ROBERT A

    IPC: B64C1/22 ,  B66C7/00 ,  B60P1/54

    CPC classification number: B64C1/22 ,  B66C7/00 ,  B66C2700/012

    Abstract: A cargo handling system to place cargo load supporting elements in the fuselage of a vehicle comprising a hoist mechanism supported by the vehicle which automatically places within the vehicle or removes therefrom the load supporting elements. The hoist mechanism includes a two position latching system which in the first position affects automatic securing to the load supporting element and in the second position is not secured to the load supporting element.

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