SE519107C2 - Anordning vid ljudalstrare innefattande en roterbar magnetkrans - Google Patents

Anordning vid ljudalstrare innefattande en roterbar magnetkrans

Info

Publication number
SE519107C2
SE519107C2 SE0001775A SE0001775A SE519107C2 SE 519107 C2 SE519107 C2 SE 519107C2 SE 0001775 A SE0001775 A SE 0001775A SE 0001775 A SE0001775 A SE 0001775A SE 519107 C2 SE519107 C2 SE 519107C2
Authority
SE
Sweden
Prior art keywords
ring
magnets
magnetic
zones
frequency
Prior art date
Application number
SE0001775A
Other languages
English (en)
Swedish (sv)
Other versions
SE0001775D0 (sv
SE0001775L (cs
Inventor
Bengt L Holm
Original Assignee
Bengt L Holm
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 Bengt L Holm filed Critical Bengt L Holm
Priority to SE0001775A priority Critical patent/SE519107C2/sv
Publication of SE0001775D0 publication Critical patent/SE0001775D0/xx
Publication of SE0001775L publication Critical patent/SE0001775L/xx
Publication of SE519107C2 publication Critical patent/SE519107C2/sv

Links

Classifications

    • 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
    • G10K9/18Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/20Sounding members
    • 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
    • G10K7/00Sirens
    • 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
    • G10K7/00Sirens
    • G10K7/02Sirens in which the sound-producing member is rotated manually or by a motor
    • 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
    • G10K9/12Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Magnetic Ceramics (AREA)
SE0001775A 2000-05-16 2000-05-16 Anordning vid ljudalstrare innefattande en roterbar magnetkrans SE519107C2 (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0001775A SE519107C2 (sv) 2000-05-16 2000-05-16 Anordning vid ljudalstrare innefattande en roterbar magnetkrans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0001775A SE519107C2 (sv) 2000-05-16 2000-05-16 Anordning vid ljudalstrare innefattande en roterbar magnetkrans

Publications (3)

Publication Number Publication Date
SE0001775D0 SE0001775D0 (sv) 2000-05-16
SE0001775L SE0001775L (cs) 2001-11-17
SE519107C2 true SE519107C2 (sv) 2003-01-14

Family

ID=20279661

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0001775A SE519107C2 (sv) 2000-05-16 2000-05-16 Anordning vid ljudalstrare innefattande en roterbar magnetkrans

Country Status (1)

Country Link
SE (1) SE519107C2 (cs)

Also Published As

Publication number Publication date
SE0001775D0 (sv) 2000-05-16
SE0001775L (cs) 2001-11-17

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Legal Events

Date Code Title Description
NUG Patent has lapsed