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Class Information
Number: 73/861.65
Name: Measuring and testing > Volume or rate of flow > Using differential pressure > Pitot
Description: Subject matter comprising a device that consists of a tube which is placed in a moving body of fluid and is used to measure a kinetic head.

Sub-classes under this class:

Class Number Class Name Patents
73/861.67 Adjustable 12
73/861.66 Sensing at plural transverse locations 86
73/861.68 With heating element 16

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8683875 Beta ratio changer for flow measurement devices Apr. 1, 2014
8636240 Aircraft ground maintenance tether assembly Jan. 28, 2014
8601883 Acoustic sensor for averaging pitot tube installation Dec. 10, 2013
8578790 Apparatus for measurement of ducted air Nov. 12, 2013
8517301 Aircraft ground maintenance tether assembly Aug. 27, 2013
8448515 Differential pressure measuring probe with bottoming indicator May. 28, 2013
8434373 Cone type venturi integrated valve device May. 7, 2013
8397565 High response air angle probe Mar. 19, 2013
8342036 Differential pressure anemometer Jan. 1, 2013
8286506 Air flow sensor with low-pressure drop Oct. 16, 2012
8234935 Anti-rotation mechanism for pitot tube Aug. 7, 2012
8132471 Fail-safe pitot cover for a variety of pitot designs Mar. 13, 2012
8100022 Device for measuring the total pressure of a flow and method implementing the device Jan. 24, 2012
8065925 Sensor unit having a measuring probe and a housing part with sensors and a computing unit integrated in the housing part Nov. 29, 2011
8028588 Flow measurement using near field microwaves Oct. 4, 2011
7984612 Exhaust-gas turbocharger for an internal combustion engine Jul. 26, 2011
7798018 Measuring arrangement for flow measurement in a channel Sep. 21, 2010
7798017 Ram pressure probe having two ducts and a differential pressure increasing element Sep. 21, 2010
7654157 Airflow sensor with pitot tube for pressure drop reduction Feb. 2, 2010
7637172 Electronic device with speed measurement and output generation Dec. 29, 2009
7617023 Process and device for monitoring the validity of a speed cue of an aircraft and system for generating a speed cue comprising such a device Nov. 10, 2009
7478565 Method & apparatus for fluid flow rate and density measurement Jan. 20, 2009
7480548 High-altitude capable wide velocity range flight velocity vector measurement probe and measurement system Jan. 20, 2009
7406880 Averaging orifice primary flow element Aug. 5, 2008
7343823 Ultra low pressure drop flow sensor Mar. 18, 2008
7293471 Flow meter for measuring fluid mixtures Nov. 13, 2007
7255013 Method and apparatus for measuring cryogenic flow Aug. 14, 2007
7243556 Airflow sensor Jul. 17, 2007
7228750 Apparatus and method for measuring fluid flow Jun. 12, 2007
7201067 System and method for determining flow characteristics Apr. 10, 2007
7194920 Sensor probe and pipeline construction and method Mar. 27, 2007
7186951 Sensor structure and sensor arrangement for measuring flow data on a flow body Mar. 6, 2007
7159473 Internal tube support for flow elements providing for tube expansion within the flow element shell Jan. 9, 2007
7089805 Average bidirectional flow tube Aug. 15, 2006
7056085 Methods and apparatus for sensing parameters of air flows Jun. 6, 2006
7010970 Embedded-sensor multi-hole probes Mar. 14, 2006
6959610 Manual purge system for instrumentation flow element tubing Nov. 1, 2005
6957586 System to measure density, specific gravity, and flow rate of fluids, meter, and related methods Oct. 25, 2005
6928884 Method and apparatus for measurement of flow rate Aug. 16, 2005
6901814 Fuselage pitot-static tube Jun. 7, 2005
6892584 Fabricated pitot probe assembly May. 17, 2005
6883390 Instrument for measuring water-spray blast force Apr. 26, 2005
6883389 Flow averaging tube and method of using same Apr. 26, 2005
6868741 Device and method enabling fluid characteristic measurement utilizing fluid acceleration Mar. 22, 2005
6725714 Water pressure probe speedometer Apr. 27, 2004
6711959 Air velocity measurement instrument Mar. 30, 2004
6651515 Sensor for measuring at least one physical parameter of a fluid flow, and in particular a de-iced sensor of air total temperature Nov. 25, 2003
6634242 Apparatus for measuring respiratory gas flow by means of a disposable respiratory tube Oct. 21, 2003
6591696 Integral electric pressure probe for aircraft Jul. 15, 2003
6588285 Fuselage pitot-static tube and the aerodynamic profile of its strut Jul. 8, 2003

1 2 3

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