JPS5441096A - Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type - Google Patents

Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type

Info

Publication number
JPS5441096A
JPS5441096A JP10818577A JP10818577A JPS5441096A JP S5441096 A JPS5441096 A JP S5441096A JP 10818577 A JP10818577 A JP 10818577A JP 10818577 A JP10818577 A JP 10818577A JP S5441096 A JPS5441096 A JP S5441096A
Authority
JP
Japan
Prior art keywords
atmospheric pressure
defference
miniature electromagnetic
electromagnetic buzzer
countermeasure type
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.)
Pending
Application number
JP10818577A
Other languages
Japanese (ja)
Inventor
Shigeru Kogure
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP10818577A priority Critical patent/JPS5441096A/en
Publication of JPS5441096A publication Critical patent/JPS5441096A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable the reduction in sound volume owing to atmospheric pressure differences to be eliminated by providing a waterproofing plate composed of a non-magnetic material on the inner side of a diaphragm, and providing holes communicating with the outside between the diaphragm and waterproofing plate thereby eliminating the distortions of the diaphragm owing to atmospheric pressure differences.
COPYRIGHT: (C)1979,JPO&Japio
JP10818577A 1977-09-08 1977-09-08 Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type Pending JPS5441096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10818577A JPS5441096A (en) 1977-09-08 1977-09-08 Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10818577A JPS5441096A (en) 1977-09-08 1977-09-08 Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type

Publications (1)

Publication Number Publication Date
JPS5441096A true JPS5441096A (en) 1979-03-31

Family

ID=14478144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10818577A Pending JPS5441096A (en) 1977-09-08 1977-09-08 Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type

Country Status (1)

Country Link
JP (1) JPS5441096A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194513A (en) * 1981-05-26 1982-11-30 Sumida Denki Kk Coil winding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194513A (en) * 1981-05-26 1982-11-30 Sumida Denki Kk Coil winding method

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