NL74171C - - Google Patents

Info

Publication number
NL74171C
NL74171C NL74171DA NL74171C NL 74171 C NL74171 C NL 74171C NL 74171D A NL74171D A NL 74171DA NL 74171 C NL74171 C NL 74171C
Authority
NL
Netherlands
Application number
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.)
Publication of NL74171C publication Critical patent/NL74171C/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/36—Time-delay networks with non-adjustable delay time

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
NL74171D 1946-03-09 NL74171C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US653255A US2505364A (en) 1946-03-09 1946-03-09 Compression wave transmission

Publications (1)

Publication Number Publication Date
NL74171C true NL74171C (fr)

Family

ID=24620102

Family Applications (1)

Application Number Title Priority Date Filing Date
NL74171D NL74171C (fr) 1946-03-09

Country Status (3)

Country Link
US (1) US2505364A (fr)
GB (1) GB658177A (fr)
NL (1) NL74171C (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590405A (en) * 1946-08-13 1952-03-25 Rca Corp Signal to noise ratio of radar systems
US2685067A (en) * 1948-03-12 1954-07-27 Raytheon Mfg Co Means for delaying electrical signals
US2753528A (en) * 1948-09-21 1956-07-03 Robert M Ashby Ultrasonic delay lines
US2626992A (en) * 1949-02-26 1953-01-27 Bell Telephone Labor Inc Signal delay device
US2727214A (en) * 1949-11-02 1955-12-13 Bell Telephone Labor Inc Acoustic delay line using solid rods
US2664547A (en) * 1950-02-17 1953-12-29 Raytheon Mfg Co Delay line device
US2823355A (en) * 1950-05-17 1958-02-11 David L Arenberg Ultrasonic delay line
US2746019A (en) * 1951-09-19 1956-05-15 Lab For Electronics Inc Delay line
US2728868A (en) * 1951-09-24 1955-12-27 Northrop Aircraft Inc Liquid filled accelerometer
US2984800A (en) * 1951-10-26 1961-05-16 Irving H Page Delay line for wave signals
US2777997A (en) * 1951-11-06 1957-01-15 David L Arenberg Ultrasonic delay lines
US2748369A (en) * 1951-12-07 1956-05-29 Birmingham Small Arms Co Ltd Transducer
US2781494A (en) * 1953-03-18 1957-02-12 Lab For Electronics Inc Ultrasonic delay lines
GB748438A (en) * 1953-11-30 1956-05-02 Marconi Wireless Telegraph Co Improvements in or relating to ultrasonic delay devices
US3137836A (en) * 1955-08-25 1964-06-16 Clyde P Glover Support for electro-acoustic transducer
US2826745A (en) * 1956-08-05 1958-03-11 Irving H Page Grid-type liquid delay line
US2945984A (en) * 1959-07-17 1960-07-19 Sylvania Electric Prod Piezoelectric device
US3794937A (en) * 1972-04-20 1974-02-26 Westinghouse Electric Corp Folded path acoustic delay line and optical processor
US4196406A (en) * 1978-06-12 1980-04-01 General Electric Company Ultrasonic control device
US4193049A (en) * 1978-06-12 1980-03-11 Deere & Company Ultrasonic touch control panel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954238A (en) * 1925-10-29 1934-04-10 Rca Corp Mounting of piezo-electric resonators
US1775775A (en) * 1926-08-07 1930-09-16 American Telephone & Telegraph Method of and means for wave retardation
US1783014A (en) * 1927-01-21 1930-11-25 Rca Corp Semirigid crystal mounting
FR711667A (fr) * 1930-05-26 1931-09-15 Appareil retardateur électro-acoustique
US2015836A (en) * 1933-01-26 1935-10-01 Telefunken Gmbh Quartz crystal oscillator
US2263902A (en) * 1938-02-08 1941-11-25 Emi Ltd Delay device for use in transmission of oscillations
US2202220A (en) * 1939-04-10 1940-05-28 Power Patents Co Movable core spark plug
US2423306A (en) * 1945-08-01 1947-07-01 Forbes Gordon Donald Transmission line

Also Published As

Publication number Publication date
GB658177A (en) 1951-10-03
US2505364A (en) 1950-04-25

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