AU474202B2 – Proximity alarm
– Google Patents
AU474202B2 – Proximity alarm
– Google Patents
Proximity alarm
Info
Publication number
AU474202B2
AU474202B2
AU31359/71A
AU3135971A
AU474202B2
AU 474202 B2
AU474202 B2
AU 474202B2
AU 31359/71 A
AU31359/71 A
AU 31359/71A
AU 3135971 A
AU3135971 A
AU 3135971A
AU 474202 B2
AU474202 B2
AU 474202B2
Authority
AU
Australia
Prior art keywords
proximity alarm
alarm
proximity
Prior art date
1971-04-19
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
AU31359/71A
Other versions
AU3135971A
(en
Inventor
MELVIN JEPPERSON and CHARLES WARREN SIMMONDS RICHARD
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.)
BOWER INDUSTRIES Inc
Original Assignee
BOWER INDUSTRIES Inc
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.)
1971-04-19
Filing date
1971-07-19
Publication date
1976-07-15
1971-07-19
Application filed by BOWER INDUSTRIES Inc
filed
Critical
BOWER INDUSTRIES Inc
1973-01-25
Publication of AU3135971A
publication
Critical
patent/AU3135971A/en
1976-07-15
Application granted
granted
Critical
1976-07-15
Publication of AU474202B2
publication
Critical
patent/AU474202B2/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G08—SIGNALLING
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B13/00—Burglar, theft or intruder alarms
G08B13/22—Electrical actuation
G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
G—PHYSICS
G08—SIGNALLING
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
G08B21/02—Alarms for ensuring the safety of persons
G—PHYSICS
G08—SIGNALLING
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
G08B21/18—Status alarms
G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
AU31359/71A
1971-04-19
1971-07-19
Proximity alarm
Expired
AU474202B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
USUS135,347
1962-08-31
US13534771A
1971-04-19
1971-04-19
Related Parent Applications (1)
Application Number
Title
Priority Date
Filing Date
AU15703/76A
Division
AU502946B2
(en)
1976-07-08
1976-07-08
Proximity alarm
Publications (2)
Publication Number
Publication Date
AU3135971A
AU3135971A
(en)
1973-01-25
AU474202B2
true
AU474202B2
(en)
1976-07-15
Family
ID=22467692
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU31359/71A
Expired
AU474202B2
(en)
1971-04-19
1971-07-19
Proximity alarm
Country Status (8)
Country
Link
US
(1)
US3745549A
(en)
JP
(1)
JPS53152587U
(en)
AU
(1)
AU474202B2
(en)
CA
(1)
CA963553A
(en)
DE
(1)
DE2137893C3
(en)
FR
(1)
FR2134977A5
(en)
GB
(2)
GB1367642A
(en)
NL
(1)
NL7111829A
(en)
Families Citing this family (16)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4362992A
(en)
*
1978-01-30
1982-12-07
Sperry Limited
System and method of detecting the proximity of an alternating magnetic field
US4727447A
(en)
*
1982-12-20
1988-02-23
Texaco Inc.
Safety system and method
US4683464A
(en)
*
1983-06-30
1987-07-28
Texaco Inc.
Safety monitor means and method
US4649375A
(en)
*
1985-10-31
1987-03-10
Fmc Corporation
Apparatus for detecting power lines
FR2608781B1
(en)
*
1986-12-17
1989-03-03
Thomas Jean
PROXIMITY DETECTOR BETWEEN A METAL GROUND AND AN ELECTRICALLY VOLTAGE ELEMENT
EP0596878A1
(en)
*
1991-08-01
1994-05-18
FORTIN, Gabriel
Method and device for electrostatically investigating surface and sub-surface structures
USD383076S
(en)
*
1995-07-24
1997-09-02
Cripe Rodney J
Emergency vehicle proximity alarm system
US5910775A
(en)
*
1996-08-29
1999-06-08
S&C Electric Company
Phasing and indicator arrangements for switchgear or the like
US6002348A
(en)
*
1998-05-13
1999-12-14
Safe Flight Instrument Corporation
Pilot’s aid for detecting power lines
US6124798A
(en)
*
1998-12-09
2000-09-26
Institute Of Occupational Safety And Health, Council Of Labor Affairs, Executive Yuan
Alarm device designed to warn of danger of hitting high voltage power line by crane in motion
US6600426B1
(en)
1999-10-04
2003-07-29
The United States Of America As Represented By The Department Of Health And Human Services
Alarm system for detecting hazards due to power transmission lines
US6853307B2
(en)
*
2002-03-14
2005-02-08
Irvin H. Nickerson
High voltage proximity warning system and method
US20070018841A1
(en)
*
2004-11-22
2007-01-25
Nickerson Irvin H
High voltage proximity warning system utilizing wireless sensors and method
US8477027B2
(en)
*
2007-10-24
2013-07-02
Gerald E. Givens
Wireless sensor system
US20090108840A1
(en)
*
2007-10-24
2009-04-30
Givens Gerald E
Power Line Sensor
US8786447B1
(en)
2012-02-26
2014-07-22
Bryan C. Wise
High voltage detection assembly
1971
1971-04-19
US
US00135347A
patent/US3745549A/en
not_active
Expired – Lifetime
1971-07-01
GB
GB1220174A
patent/GB1367642A/en
not_active
Expired
1971-07-01
GB
GB3083471A
patent/GB1367641A/en
not_active
Expired
1971-07-19
AU
AU31359/71A
patent/AU474202B2/en
not_active
Expired
1971-07-29
DE
DE2137893A
patent/DE2137893C3/en
not_active
Expired
1971-08-20
CA
CA120,967A
patent/CA963553A/en
not_active
Expired
1971-08-27
NL
NL7111829A
patent/NL7111829A/xx
not_active
Application Discontinuation
1971-12-27
FR
FR7146757A
patent/FR2134977A5/fr
not_active
Expired
1977
1977-12-19
JP
JP1977171015U
patent/JPS53152587U/ja
active
Pending
Also Published As
Publication number
Publication date
NL7111829A
(en)
1972-10-23
JPS53152587U
(en)
1978-12-01
CA963553A
(en)
1975-02-25
DE2137893B2
(en)
1979-04-19
AU3135971A
(en)
1973-01-25
GB1367642A
(en)
1974-09-18
US3745549A
(en)
1973-07-10
GB1367641A
(en)
1974-09-18
FR2134977A5
(en)
1972-12-08
DE2137893A1
(en)
1972-11-09
DE2137893C3
(en)
1979-12-06
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