GB1234592A - - Google Patents

Info

Publication number
GB1234592A
GB1234592A GB1234592DA GB1234592A GB 1234592 A GB1234592 A GB 1234592A GB 1234592D A GB1234592D A GB 1234592DA GB 1234592 A GB1234592 A GB 1234592A
Authority
GB
United Kingdom
Prior art keywords
multivibrator
frequency
integrated
modulate
audio frequency
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
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1234592A publication Critical patent/GB1234592A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
    • A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B15/00—Teaching music

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Educational Administration (AREA)
  • Birds (AREA)
  • Business, Economics & Management (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Electrotherapy Devices (AREA)
  • Electromechanical Clocks (AREA)
  • Catching Or Destruction (AREA)
GB1234592D 1967-06-06 1969-06-05 Expired GB1234592A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES110195A DE1260855B (de) 1967-06-06 1967-06-06 Elektronisches Geraet zur Nachbildung von Tierlauten

Publications (1)

Publication Number Publication Date
GB1234592A true GB1234592A (enrdf_load_stackoverflow) 1971-06-03

Family

ID=7530050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234592D Expired GB1234592A (enrdf_load_stackoverflow) 1967-06-06 1969-06-05

Country Status (4)

Country Link
US (1) US3594786A (enrdf_load_stackoverflow)
DE (1) DE1260855B (enrdf_load_stackoverflow)
FR (1) FR1580942A (enrdf_load_stackoverflow)
GB (1) GB1234592A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132401A (en) * 1982-12-20 1984-07-04 Emhart Ind Multiple tone signalling device
GB2161974A (en) * 1984-07-18 1986-01-22 Saltney Engineering Limited Devices for scaring away birds or other pests or vermin
CN103069079A (zh) * 2010-08-16 2013-04-24 费希指导系统有限公司 用于将水下动物从水下区域驱离的系统

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412457A (en) * 1971-12-27 1975-11-05 Sumitomo Electric Industries Sound generator comprising a piezoelectric acoustic device
US3763326A (en) * 1972-05-22 1973-10-02 Bell Canada Northern Electric Telephone audio signalling arrangement
US3838418A (en) * 1972-06-26 1974-09-24 Mildred Miller Pest control apparatus and method
US4034185A (en) * 1975-09-02 1977-07-05 Northern Electric Company Electric blanket control circuit
US4173755A (en) * 1977-05-02 1979-11-06 Butler George N Battery-operated body capacitance intrusion alarm apparatus
US4258358A (en) * 1978-08-16 1981-03-24 International Quartz Ltd. Door opening sensing and alarm producing device
FR2453603A1 (fr) * 1979-04-13 1980-11-07 Mini Agriculture Fisheries Perfectionnements aux pieges et procedes de piegeage
US4314423A (en) * 1979-07-09 1982-02-09 Lipsitz Barry R Sound producing toy
US4337460A (en) * 1980-01-25 1982-06-29 Smith Engineering Hand-held sound effects device
US4338593A (en) * 1980-08-18 1982-07-06 Sound Control, Inc. Rodent control apparatus and method
US4554411A (en) * 1983-01-24 1985-11-19 Scovill Inc. Intercom system
WO1985002319A1 (en) * 1983-11-29 1985-06-06 Hess, Petra Apparatus for frightening noxious animals by means of acoustic signals
DE3504272C2 (de) * 1985-02-08 1987-01-22 Battelle-Institut E.V., 6000 Frankfurt Vorrichtung zur Vogelvergrämung
DE8905067U1 (de) * 1989-04-21 1989-07-27 Friedel VOGT electronic Entwicklung und Vertrieb, 6570 Hochstetten-Dhaun Gerät zur akustischen Wildschadensabwehr
US5515026A (en) * 1994-01-28 1996-05-07 Ewert; Roger D. Total alert driver safety system
FR2982737B1 (fr) * 2011-11-18 2014-09-12 Airbus Operations Sas Procede et dispositif d'effarouchement acoustique d'especes aviaires, en particulier pour un aeronef.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137846A (en) * 1958-12-10 1964-06-16 Kenneth Tower Electronic sirens
FR1281370A (fr) * 1960-11-29 1962-01-12 Charbonnages De France Dispositif hurleur
US3284796A (en) * 1961-10-30 1966-11-08 Vincent S Borsattino Sound producer
US3325578A (en) * 1964-06-26 1967-06-13 Seeburg Corp Cow bell instrument

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132401A (en) * 1982-12-20 1984-07-04 Emhart Ind Multiple tone signalling device
GB2161974A (en) * 1984-07-18 1986-01-22 Saltney Engineering Limited Devices for scaring away birds or other pests or vermin
CN103069079A (zh) * 2010-08-16 2013-04-24 费希指导系统有限公司 用于将水下动物从水下区域驱离的系统

Also Published As

Publication number Publication date
DE1260855B (de) 1968-02-08
US3594786A (en) 1971-07-20
FR1580942A (enrdf_load_stackoverflow) 1969-09-12

Similar Documents

Publication Publication Date Title
GB1234592A (enrdf_load_stackoverflow)
CA941469A (en) Modulator compensated for varying modulating signal level
CH523493A (de) Vorrichtung zur Erzeugung elektrischer, von den Koordinaten in einer Ebene abhängiger Signale
NL189329C (nl) Versterker voor pulsbreedte-gemoduleerde signalen.
NL189330B (nl) Versterker voor pulsbreedte-gemoduleerde signalen.
NL7514887A (nl) Versterker voor impulsbreedtegemoduleerde signa- len.
FR2081692A1 (enrdf_load_stackoverflow)
NO148867C (no) Anordning for aa frembringe amplitudemodulerte ultralydsendepulser
GB1228405A (enrdf_load_stackoverflow)
NL7514886A (nl) Versterker voor impulsbreedtegemoduleerde signa- len.
GB1341765A (en) Amplitude modulated laser
GB1031104A (en) Improvements in or relating to disposable bed pans
CA508283A (en) Farm and roadside sprayer
GB1293362A (en) Diode modulator
CA966560A (en) Electronical amplitude modulator, in particular for modulating signals intended for navigation purpose
CA850757A (en) Power amplifier for amplitude modulated transmitter
CA561861A (en) Arrangement for generating amplitude modulated pulse trains
NL154078B (nl) Ontvanger voor frequentiegemoduleerde signalen.
AU614266A (en) Active amplitude modulator
CA770242A (en) Transmitting arrangements for the transmission of amplitude modulated oscillations
CA747051A (en) Amplitude modulation system
CA770294A (en) Amplitude modulation system
CA978089A (en) Diesel pile driver for impact atomization
CA974612A (en) Fail-safe constant amplitude signal generator
JPS5236916A (en) Vertical deflection unit

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees