GB405493A - Improvements in or relating to hearing-aid devices - Google Patents

Improvements in or relating to hearing-aid devices

Info

Publication number: GB405493A
Authority: GB; United Kingdom
Prior art keywords: armature; vibrator; core; plate; strap
Prior art date: 1932-06-01
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

GB12445/33A

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.)

Sonotone Corp

Original Assignee

Sonotone Corp

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.)

1932-06-01

Filing date

1933-04-28

Publication date

1934-02-08

1933-04-28 Application filed by Sonotone Corp filed Critical Sonotone Corp

1934-02-08 Publication of GB405493A publication Critical patent/GB405493A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Percussion Or Vibration Massage (AREA)

GB12445/33A 1932-06-01 1933-04-28 Improvements in or relating to hearing-aid devices Expired GB405493A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US614674A US1940553A (en)	1932-06-01	1932-06-01	Hearing-aid device

Publications (1)

Publication Number	Publication Date
GB405493A true GB405493A (en)	1934-02-08

Family

ID=24462267

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB12445/33A Expired GB405493A (en)	1932-06-01	1933-04-28	Improvements in or relating to hearing-aid devices

Country Status (4)

Country	Link
US (1)	US1940553A (fr)
FR (1)	FR754838A (fr)
GB (1)	GB405493A (fr)
NL (1)	NL39329C (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2979691A (en) *	1943-03-25	1961-04-11	Joseph F Keithley	Microphone for the measurement of transient pressures in a body of water
US2459325A (en) *	1944-10-27	1949-01-18	Zenith Radio Corp	Bone conduction unit
US2479308A (en) *	1945-03-17	1949-08-16	Armour Res Found	Magnetic recorder head
DE1061371B (de) *	1955-05-28	1959-07-16	Wendton Werner Wendt K G	Schwerhoerigengeraet in Brillenform
US2806246A (en) *	1956-03-02	1957-09-17	Reflectone Corp	Food tenderizer
US9456282B2 (en) *	2014-07-15	2016-09-27	Larry Tang	Bone-conduction speaker
US9924265B2 (en) *	2015-09-15	2018-03-20	Intel Corporation	System for voice capture via nasal vibration sensing
US10324494B2 (en)	2015-11-25	2019-06-18	Intel Corporation	Apparatus for detecting electromagnetic field change in response to gesture
US10104482B2 (en) *	2016-05-27	2018-10-16	Cochlear Limited	Magnet positioning in an external device
US10298282B2 (en)	2016-06-16	2019-05-21	Intel Corporation	Multi-modal sensing wearable device for physiological context measurement
US10241583B2 (en)	2016-08-30	2019-03-26	Intel Corporation	User command determination based on a vibration pattern

1932
- 1932-06-01 US US614674A patent/US1940553A/en not_active Expired - Lifetime
1933
- 1933-04-27 FR FR754838D patent/FR754838A/fr not_active Expired
- 1933-04-28 GB GB12445/33A patent/GB405493A/en not_active Expired
- 1933-05-26 NL NL65450A patent/NL39329C/xx active

Also Published As

Publication number	Publication date
FR754838A (fr)	1933-11-14
NL39329C (fr)	1936-11-16
US1940553A (en)	1933-12-19

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