GB350286A - - Google Patents

Info

Publication number
GB350286A
GB350286A GB21078/30A GB2107830A GB350286A GB 350286 A GB350286 A GB 350286A GB 21078/30 A GB21078/30 A GB 21078/30A GB 2107830 A GB2107830 A GB 2107830A GB 350286 A GB350286 A GB 350286A
Authority
GB
United Kingdom
Prior art keywords
pointer
echo
interval
sound
july
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
GB21078/30A
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
Application filed by Submarine Signal Co filed Critical Submarine Signal Co
Publication of GB350286A publication Critical patent/GB350286A/en
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 Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Details Of Measuring And Other Instruments (AREA)
GB21078/30A 1929-07-29 1930-07-11 Expired GB350286A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US381971A US2028174A (en) 1929-07-29 1929-07-29 Distance and depth finding

Publications (1)

Publication Number Publication Date
GB350286A true GB350286A (enrdf_load_stackoverflow) 1931-06-11

Family

ID=23507046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21078/30A Expired GB350286A (enrdf_load_stackoverflow) 1929-07-29 1930-07-11

Country Status (4)

Country Link
US (1) US2028174A (enrdf_load_stackoverflow)
DE (1) DE558234C (enrdf_load_stackoverflow)
FR (1) FR698604A (enrdf_load_stackoverflow)
GB (1) GB350286A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755455A (en) * 1953-01-27 1956-07-17 Gen Precision Lab Inc Depth sounder
US6705459B1 (en) * 1998-02-17 2004-03-16 General Kinematics Corporation Two-way vibratory feeder

Also Published As

Publication number Publication date
FR698604A (fr) 1931-02-02
DE558234C (de) 1932-09-20
US2028174A (en) 1936-01-21

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