FR703120A - Indicateur à balancier - Google Patents

Indicateur à balancier

Info

Publication number
FR703120A
FR703120A FR703120DA FR703120A FR 703120 A FR703120 A FR 703120A FR 703120D A FR703120D A FR 703120DA FR 703120 A FR703120 A FR 703120A
Authority
FR
France
Prior art keywords
pendulum indicator
pendulum
indicator
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.)
Expired
Application number
Other languages
English (en)
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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
Priority claimed from US413917A external-priority patent/US2015702A/en
Application filed by Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR703120A publication Critical patent/FR703120A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR703120D 1929-12-13 1930-10-02 Indicateur à balancier Expired FR703120A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US413917A US2015702A (en) 1929-12-13 1929-12-13 Method and apparatus for measuring distances and depths
US730891A US2054109A (en) 1929-12-13 1934-06-16 Indicating device

Publications (1)

Publication Number Publication Date
FR703120A true FR703120A (fr) 1931-04-25

Family

ID=27022337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR703120D Expired FR703120A (fr) 1929-12-13 1930-10-02 Indicateur à balancier

Country Status (3)

Country Link
US (1) US2054109A (fr)
FR (1) FR703120A (fr)
GB (1) GB361075A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474842A (en) * 1940-12-31 1949-07-05 Harvey C Hayes Indicator
US2424981A (en) * 1943-02-27 1947-08-05 Submarine Signal Co Signaling system
US3218887A (en) * 1962-11-13 1965-11-23 Raytheon Co Echo-ranging devices

Also Published As

Publication number Publication date
GB361075A (en) 1931-11-19
US2054109A (en) 1936-09-15

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