FR1116237A - Perfectionnements aux dispositifs de retard d'ultra-sons - Google Patents

Perfectionnements aux dispositifs de retard d'ultra-sons

Info

Publication number: FR1116237A
Authority: FR; France
Prior art keywords: delay devices; ultrasonic delay; ultrasonic; devices; delay
Prior art date: 1953-11-30
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

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.)

Marconis Wireless Telegraph Co Ltd

BAE Systems Electronics Ltd

Original Assignee

Marconis Wireless Telegraph Co Ltd

Marconi Co Ltd

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.)

1953-11-30

Filing date

1954-11-30

Publication date

1956-05-04

1954-11-30 Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd

1956-05-04 Application granted granted Critical

1956-05-04 Publication of FR1116237A publication Critical patent/FR1116237A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/36—Time-delay networks with non-adjustable delay time

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Transducers For Ultrasonic Waves (AREA)
Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

FR1116237D 1953-11-30 1954-11-30 Perfectionnements aux dispositifs de retard d'ultra-sons Expired FR1116237A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB33277/53A GB748438A (en)	1953-11-30	1953-11-30	Improvements in or relating to ultrasonic delay devices

Publications (1)

Publication Number	Publication Date
FR1116237A true FR1116237A (fr)	1956-05-04

Family

ID=10350834

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1116237D Expired FR1116237A (fr)	1953-11-30	1954-11-30	Perfectionnements aux dispositifs de retard d'ultra-sons

Country Status (4)

Country	Link
US (1)	US2922966A (fr)
DE (1)	DE1139218B (fr)
FR (1)	FR1116237A (fr)
GB (1)	GB748438A (fr)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB988102A (en) *	1962-08-03	1965-04-07	Marconi Co Ltd	Improvements in or relating to wave-energy delay cells
GB1113314A (en) *	1964-11-14	1968-05-15	Sony Corp	Delay circuit using an ultrasonic delay line
DE1273085B (de) *	1965-12-16	1968-07-18	Telefunken Patent	Elektromechanische Verzoegerungsanordnung
NL153046B (nl) *	1968-11-09	1977-04-15	Philips Nv	Ultrasone vertragingslijn.
JPS5145217B1 (fr) *	1969-12-06	1976-12-02
JPS4731125U (fr) *	1971-04-26	1972-12-08
JPS4890647A (fr) *	1971-05-14	1973-11-26	Matsushita Electric Ind Co Ltd
JPS4890648A (fr) *	1972-03-06	1973-11-26
JPS4890645A (fr) *	1972-03-06	1973-11-26
JPS5421963Y2 (fr) *	1972-04-07	1979-08-02
JPS48103148A (fr) *	1972-04-10	1973-12-25
JPS492463A (fr) *	1972-04-18	1974-01-10
JPS492459A (fr) *	1972-04-18	1974-01-10
JPS492461A (fr) *	1972-04-18	1974-01-10
JPS492458A (fr) *	1972-04-18	1974-01-10
JPS492462A (fr) *	1972-04-18	1974-01-10
JPS492457A (fr) *	1972-04-18	1974-01-10
JPS492465A (fr) *	1972-04-18	1974-01-10
JPS493545A (fr) *	1972-04-21	1974-01-12
JPS493546A (fr) *	1972-04-21	1974-01-12
JPS496857A (fr) *	1972-05-08	1974-01-22
JPS499953A (fr) *	1972-05-22	1974-01-29
JPS4917947A (fr) *	1972-06-07	1974-02-16
JPS4917946A (fr) *	1972-06-07	1974-02-16
JPS4918246A (fr) *	1972-06-08	1974-02-18
JPS4918247A (fr) *	1972-06-08	1974-02-18
JPS4918243A (fr) *	1972-06-08	1974-02-18
JPS4918242A (fr) *	1972-06-08	1974-02-18
JPS4918244A (fr) *	1972-06-08	1974-02-18
JPS4918241A (fr) *	1972-06-08	1974-02-18
JPS4918449A (fr) *	1972-06-09	1974-02-18
JPS4918448A (fr) *	1972-06-09	1974-02-18
JPS4969252A (fr) *	1972-11-09	1974-07-04
JPS4983348A (fr) *	1972-12-15	1974-08-10
JPS53117Y2 (fr) *	1973-05-19	1978-01-06
JPS51105252A (en) *	1975-03-13	1976-09-17	Asahi Glass Co Ltd	Choonpakotaichensen oyobi sonoseizoho

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2263902A (en) *	1938-02-08	1941-11-25	Emi Ltd	Delay device for use in transmission of oscillations
DE893059C (de) *	1940-11-27	1953-10-12	Telefunken Gmbh	Anordnung zur zeitlichen Verzoegerung von sehr kurzen elektrischen Impulsen
NL74171C (fr) *	1946-03-09
US2624804A (en) *	1946-04-02	1953-01-06	David L Arenberg	Solid delay line
US2565725A (en) *	1946-05-21	1951-08-28	Sperry Prod Inc	Supersonic inspection for flaws lying near the surface of a part
US2685067A (en) *	1948-03-12	1954-07-27	Raytheon Mfg Co	Means for delaying electrical signals
US2826745A (en) *	1956-08-05	1958-03-11	Irving H Page	Grid-type liquid delay line

1953
- 1953-11-30 GB GB33277/53A patent/GB748438A/en not_active Expired
1954
- 1954-11-12 US US468517A patent/US2922966A/en not_active Expired - Lifetime
- 1954-11-27 DE DEM25296A patent/DE1139218B/de active Pending
- 1954-11-30 FR FR1116237D patent/FR1116237A/fr not_active Expired

Also Published As

Publication number	Publication date
GB748438A (en)	1956-05-02
US2922966A (en)	1960-01-26
DE1139218B (de)	1962-11-08

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