US864909A - Sound-producing device. - Google Patents

Sound-producing device. Download PDF

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Publication number
US864909A
US864909A US32543006A US1906325430A US864909A US 864909 A US864909 A US 864909A US 32543006 A US32543006 A US 32543006A US 1906325430 A US1906325430 A US 1906325430A US 864909 A US864909 A US 864909A
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US
United States
Prior art keywords
sound
producing device
producing
northey
inventor
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 - Lifetime
Application number
US32543006A
Inventor
John Pell Northey
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US32543006A priority Critical patent/US864909A/en
Application granted granted Critical
Publication of US864909A publication Critical patent/US864909A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Description

No. 864,909. PATENTED SEPT. 3, 1907. J. P. NORTHEY.
SOUND PRODUCING DEVICE.
APPLICATION FILED JULYQ. 1906.
WI 77V 6 SE5. INVENTOR.
US32543006A 1906-07-09 1906-07-09 Sound-producing device. Expired - Lifetime US864909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US32543006A US864909A (en) 1906-07-09 1906-07-09 Sound-producing device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32543006A US864909A (en) 1906-07-09 1906-07-09 Sound-producing device.

Publications (1)

Publication Number Publication Date
US864909A true US864909A (en) 1907-09-03

Family

ID=2933359

Family Applications (1)

Application Number Title Priority Date Filing Date
US32543006A Expired - Lifetime US864909A (en) 1906-07-09 1906-07-09 Sound-producing device.

Country Status (1)

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US (1) US864909A (en)

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