FR2429603A1 - Ski stick with device to measure speed - has open transparent graduated tube with ball balanced by pressure in tube set up by air entering upper and lower orifices - Google Patents

Ski stick with device to measure speed - has open transparent graduated tube with ball balanced by pressure in tube set up by air entering upper and lower orifices

Info

Publication number
FR2429603A1
FR2429603A1 FR7819077A FR7819077A FR2429603A1 FR 2429603 A1 FR2429603 A1 FR 2429603A1 FR 7819077 A FR7819077 A FR 7819077A FR 7819077 A FR7819077 A FR 7819077A FR 2429603 A1 FR2429603 A1 FR 2429603A1
Authority
FR
France
Prior art keywords
tube
pressure
air entering
ski stick
transparent graduated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7819077A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARDY LUC
Original Assignee
HARDY LUC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HARDY LUC filed Critical HARDY LUC
Priority to FR7819077A priority Critical patent/FR2429603A1/en
Publication of FR2429603A1 publication Critical patent/FR2429603A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
    • G01P5/04—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using deflection of baffle-plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The ski stick has a device to measure the air speed relative to the skier's, allowing the speed of a descent and the maximum speed attained to be read. It consists of a transparent graduated tube (1) with conical interior walls. At the base of the tube there is an opening (2) and at the top there is an opening (3) open to the wind. A ball in the tube is held in a position balanced by the two air pressures and its position indicates the speed. The tube can be fixed to the handle of the stick and can be slid into it when not in use.
FR7819077A 1978-06-27 1978-06-27 Ski stick with device to measure speed - has open transparent graduated tube with ball balanced by pressure in tube set up by air entering upper and lower orifices Withdrawn FR2429603A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7819077A FR2429603A1 (en) 1978-06-27 1978-06-27 Ski stick with device to measure speed - has open transparent graduated tube with ball balanced by pressure in tube set up by air entering upper and lower orifices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7819077A FR2429603A1 (en) 1978-06-27 1978-06-27 Ski stick with device to measure speed - has open transparent graduated tube with ball balanced by pressure in tube set up by air entering upper and lower orifices

Publications (1)

Publication Number Publication Date
FR2429603A1 true FR2429603A1 (en) 1980-01-25

Family

ID=9210007

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819077A Withdrawn FR2429603A1 (en) 1978-06-27 1978-06-27 Ski stick with device to measure speed - has open transparent graduated tube with ball balanced by pressure in tube set up by air entering upper and lower orifices

Country Status (1)

Country Link
FR (1) FR2429603A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600423A1 (en) * 1986-06-23 1987-12-24 Laforge Eric Device for measuring and displaying the speed of a moving object
WO1990009597A1 (en) * 1989-02-20 1990-08-23 Janusz Kazimierz Buczkowski Personal speed measuring equipment
ITMI20101839A1 (en) * 2010-10-08 2012-04-09 Fulvio Milani PORTABLE DIGITAL DEVICE FOR SPEED MEASUREMENT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600423A1 (en) * 1986-06-23 1987-12-24 Laforge Eric Device for measuring and displaying the speed of a moving object
WO1990009597A1 (en) * 1989-02-20 1990-08-23 Janusz Kazimierz Buczkowski Personal speed measuring equipment
ITMI20101839A1 (en) * 2010-10-08 2012-04-09 Fulvio Milani PORTABLE DIGITAL DEVICE FOR SPEED MEASUREMENT

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Legal Events

Date Code Title Description
ST Notification of lapse