GB810730A - Improvements in or relating to devices to be worn on the human body to reveal the wearer's position if he is accidentally buried - Google Patents

Improvements in or relating to devices to be worn on the human body to reveal the wearer's position if he is accidentally buried

Info

Publication number
GB810730A
GB810730A GB4881/56A GB488156A GB810730A GB 810730 A GB810730 A GB 810730A GB 4881/56 A GB4881/56 A GB 4881/56A GB 488156 A GB488156 A GB 488156A GB 810730 A GB810730 A GB 810730A
Authority
GB
United Kingdom
Prior art keywords
wendt
temperature
wearer
feb
buried
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
GB4881/56A
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.)
EDELGARD WENDT
HORST WENDT
Original Assignee
EDELGARD WENDT
HORST WENDT
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 EDELGARD WENDT, HORST WENDT filed Critical EDELGARD WENDT
Publication of GB810730A publication Critical patent/GB810730A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/009—Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0008—Temperature signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters
    • H04B1/0343—Portable transmitters to be carried on the body

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Business, Economics & Management (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Emergency Management (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

810,730. Radio signalling. WENDT, W., WENDT, E., and WENDT, H. Feb. 16, 1956 [Feb. 16, 1955], No. 4881/56. Class 40 (5). [Also in Group XXXVIII] A tell-tale portable radio transmitter identifying the position of the wearer should he be buried in a disaster, and used in conjunction with an appropriate search receiver, comprises a wristlet case (Fig. 3, not shown) from which projects a short aerial A (Fig. 1) energized by a parallel resonant circuit LC and a three-electrode transistor Tr supplied by a battery connected at B to generate detectable HF oscillations. A temperature-sensitive semi-conductor member T has a small resistance at normal body temperature and a high resistance at lower temperatures and is arranged to diminish or suppress radiation in response to body cooling after death. A microphone UE responsive to heat pulse or lung sounds may modulate the radiated signals in life. The temperature-sensitive semiconductor may be replaced by a linear resistance (Fig. 2, not shown) so that the device responds to body sounds alone.
GB4881/56A 1955-02-16 1956-02-16 Improvements in or relating to devices to be worn on the human body to reveal the wearer's position if he is accidentally buried Expired GB810730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW16014A DE1017917B (en) 1955-02-16 1955-02-16 Display device for the disaster service

Publications (1)

Publication Number Publication Date
GB810730A true GB810730A (en) 1959-03-25

Family

ID=7595655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4881/56A Expired GB810730A (en) 1955-02-16 1956-02-16 Improvements in or relating to devices to be worn on the human body to reveal the wearer's position if he is accidentally buried

Country Status (3)

Country Link
DE (1) DE1017917B (en)
GB (1) GB810730A (en)
NL (2) NL204592A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163856A (en) * 1961-11-14 1964-12-29 Frederick G Kirby Alarm device for indicating lack of motion
US3293549A (en) * 1963-09-23 1966-12-20 Gen Signal Corp Radio communication system for control of locomotives
GB2120048A (en) * 1982-02-26 1983-11-23 Mitsubishi Electric Corp Rescue transmitter apparatus
US4819860A (en) * 1986-01-09 1989-04-11 Lloyd D. Lillie Wrist-mounted vital functions monitor and emergency locator
US5228449A (en) * 1991-01-22 1993-07-20 Athanasios G. Christ System and method for detecting out-of-hospital cardiac emergencies and summoning emergency assistance
US5521582A (en) * 1990-04-21 1996-05-28 Kingston; John E. Alarm system
CN102871691A (en) * 2012-08-30 2013-01-16 樊荣 Portable emmenia and pregnancy monitoring device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451039A1 (en) * 1979-03-06 1980-10-03 Tamboise Maurice Radio location of moving sportsman - employs RF emission modulated by orientation or presence or absence of movement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT169051B (en) * 1948-02-09 1951-10-10 Gottfried Pfeifer Device for locating buried subjects using electric waves
DE843873C (en) * 1950-11-21 1952-07-14 Hans Rast Method for making skis detectable in avalanche snow

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163856A (en) * 1961-11-14 1964-12-29 Frederick G Kirby Alarm device for indicating lack of motion
US3293549A (en) * 1963-09-23 1966-12-20 Gen Signal Corp Radio communication system for control of locomotives
GB2120048A (en) * 1982-02-26 1983-11-23 Mitsubishi Electric Corp Rescue transmitter apparatus
US4819860A (en) * 1986-01-09 1989-04-11 Lloyd D. Lillie Wrist-mounted vital functions monitor and emergency locator
US5521582A (en) * 1990-04-21 1996-05-28 Kingston; John E. Alarm system
US5228449A (en) * 1991-01-22 1993-07-20 Athanasios G. Christ System and method for detecting out-of-hospital cardiac emergencies and summoning emergency assistance
CN102871691A (en) * 2012-08-30 2013-01-16 樊荣 Portable emmenia and pregnancy monitoring device

Also Published As

Publication number Publication date
NL95424C (en)
DE1017917B (en) 1957-10-17
NL204592A (en)

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