Patent BE-1916-275652

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“Cet indicateur de montée et de descente consiste en une chambre close par une membrane élastique dont les déplacements correspondants à la pression atmosphérique, sont transmis à un index qui se meut devant un cadran gradué.”

“This indicator of ascent and descent consists of a chamber closed by an elastic membrane of which displacements corresponding to atmospheric pressure are transmitted to an index which moves before a graduated dial.”

  • Inventor location: rue du Commerce, 17, Seraing, Liège, Belgium
  • Source: RdBdI 1916

(Note casual use of “aéro” in the original title, as we use “aero”, designating our entire field of study.)


Year filed 1916
Year granted 1916
Office BE
Patent number 275652
Inventors N. Thiry
Inventor country BE
Inventor location
Applicant person N. Thiry
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Indicateur de montée et de descente pour aéro
English title Indicator of ascent and descent for aero
Tech fields instrument
Filing date April 27, 1916
Full specification filed date
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Grant date
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Supplementary to patent
Related to aircraft? -1
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National tech categories BE K
IPCs
CPCs
Family year 1916
First filing?
Cites these patents
Citations from after 1930
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