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  • 1
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    Unknown
    Bidirectional torque filter eliminates backlash (1965)
    In:  CASI
    Details
    Publication Date: 2019-05-23
    Description: Two elastic springs connecting a hub and two spur gears absorb bidirectional step torque differentials and provide antibacklash characteristics between input and output shafts. This device is used in precise control systems.
    Keywords: MECHANICS
    Type: GSC-335
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Combustion chamber inlet manifold separates vapor from liquid (1966)
    In:  CASI
    Details
    Publication Date: 2019-05-29
    Description: Circular manifold with tangential orifices at the inner circumference provides for the vapor constituent of a vaporized cryogenic propellant to enter a rocket combustion chamber before the liquid constituent. The vapor is separated from the liquid by centrifugal action and precedes it into the chamber through carefully positioned orifices.
    Keywords: MECHANICS
    Type: MFS-531
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Stationary device produces homogeneous mixture of fluids (1966)
    In:  CASI
    Details
    Publication Date: 2019-05-29
    Description: Stationary device produces a homogeneous mixture of two or more one-phase or two-phase fluids. The device contains two concentric flow guides with helical passageways through which the fluids are forced into turbulent flow by the system pressure differential.
    Keywords: MECHANICS
    Type: MFS-525
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    Unknown
    Ultrasonics permits brazing complex stainless steel assembly without flux (1967)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Ultrasonic vibration of an assembly of stainless steel instrumentation tubes ensures brazing without flux. Vibration with an ultrasonic transducer permits the brazing material to flow down each tube in contact with a seal plug installed in a pressure vessel wall.
    Keywords: MECHANICS
    Type: NU-0115
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 5
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    Knee Brace Would Lock And Unlock Automatically (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Proposed knee brace designed to aid rehabilitation of person who suffered some muscle damage in leg. Not limited to locking in straight-leg position and, instead, locks at any bend angle. Does not prevent knee from bearing weight. Instead, knee brace allows knee to bear weight and locks only when foot and lower leg bear weight. Thus, brace prevents flexion that wearer desired to prevent but could not prevent because of weakened muscles. Knee bends freely to exercise knee-related muscles. Knee brace strapped at upper end to leg above knee, and anchored at lower end by stirrup under foot. Joint mechanism (identical mechanisms used in left and right assemblies) allows knee joint to flex freely except when weight applied to heel.
    Keywords: MECHANICS
    Type: MFS-28991 , NASA Tech Briefs (ISSN 0145-319X); 19; 12; P. 28
    Format: text
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    NASA TECHNICAL REPORTS
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