GB1354501A – Electrical switch devices
– Google Patents
GB1354501A – Electrical switch devices
– Google Patents
Electrical switch devices
Info
Publication number
GB1354501A
GB1354501A
GB4153870A
GB1354501DA
GB1354501A
GB 1354501 A
GB1354501 A
GB 1354501A
GB 4153870 A
GB4153870 A
GB 4153870A
GB 1354501D A
GB1354501D A
GB 1354501DA
GB 1354501 A
GB1354501 A
GB 1354501A
Authority
GB
United Kingdom
Prior art keywords
contact unit
magnetic
reed contact
actuation
aug
Prior art date
1970-08-28
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
GB4153870A
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.)
Communications Patents Ltd
Original Assignee
Communications Patents Ltd
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.)
1970-08-28
Filing date
1970-08-28
Publication date
1974-06-05
1970-08-28
Application filed by Communications Patents Ltd
filed
Critical
Communications Patents Ltd
1974-06-05
Publication of GB1354501A
publication
Critical
patent/GB1354501A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
H01H36/0006—Permanent magnet actuating reed switches
H01H36/006—Permanent magnet actuating reed switches comprising a plurality of reed switches, e.g. selectors or joystick-operated
Abstract
1354501 Magnetic switches COMMUNICATIONS PATENTS Ltd 13 Aug 1971 [28 Aug 1970] 41538/70 Addition to 1285351 Heading H1N The switch of the parent Specification 1,285,351 is modified by the provision of means associated with at least one magnetic reed contact unit 1 which prevents magnetic actuation thereof or renders such actuation ineffective. As shown actuation of one reed contact unit by permanent magnet 6 is prevented by a magnetic shield 8 releasably engaged in a channel defined between a pair of ferromagnetic members. Alternatively (Fig. 2 not shown) each reed contact unit may be connected in series with a normally closed magnetic reed contact unit whose contacts may be biased open by a permanent magnet or electromagnet. Thus closure of a magnetic reed contact unit by movable magnet 6 is rendered ineffective by the magnetically biased contact unit in series therewith.
GB4153870A
1970-08-28
1970-08-28
Electrical switch devices
Expired
GB1354501A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4153870
1970-08-28
Publications (1)
Publication Number
Publication Date
GB1354501A
true
GB1354501A
(en)
1974-06-05
Family
ID=10420158
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4153870A
Expired
GB1354501A
(en)
1970-08-28
1970-08-28
Electrical switch devices
Country Status (14)
Country
Link
US
(1)
US3721929A
(en)
AU
(1)
AU463747B2
(en)
BE
(1)
BE771854A
(en)
CA
(1)
CA950012A
(en)
CH
(1)
CH532834A
(en)
DE
(1)
DE2142340A1
(en)
ES
(1)
ES200696Y
(en)
FR
(1)
FR2112204B1
(en)
GB
(1)
GB1354501A
(en)
IL
(1)
IL37571A
(en)
MT
(1)
MTP703B
(en)
NL
(1)
NL7111747A
(en)
SE
(1)
SE388500B
(en)
ZA
(1)
ZA715663B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2128027A
(en)
*
1982-10-01
1984-04-18
Electronic Components Ltd
Gearbox indicator switch
GB2129218A
(en)
*
1982-09-29
1984-05-10
Electronic Components Ltd
Direction indicator cancellation device
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4213854A
(en)
*
1978-02-27
1980-07-22
Stekly Zdenek J J
Magnetic separating apparatus with magnetic shielding means
JPS54131969U
(en)
*
1979-02-01
1979-09-12
US4408101A
(en)
*
1980-10-30
1983-10-04
Marcamor, Inc.
Automatic telephone dialing apparatus with magnetic switch assembly
DE3361723D1
(en)
*
1982-09-29
1986-02-13
Electronic Components Ltd
Gearbox indicator switch
DE3345822A1
(en)
*
1983-12-17
1985-06-27
Josef Heinrichs Meßgeräte, 5000 Köln
Electrical switching device for use in explosion-endangered areas
US5811892A
(en)
*
1996-10-22
1998-09-22
Kcs Industries, Inc.
Power supply system including mechanical output switches for use with a plurality of display tubes
US6262647B1
(en)
*
2000-10-23
2001-07-17
William P. Rogers
Magnetic reed switching array
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3337825A
(en)
*
1966-03-14
1967-08-22
Brooks William
Repeat-cycle switch having an electric motor driving a reciprocating actuator for a plurality of electrical switches
US3505869A
(en)
*
1968-04-17
1970-04-14
Us Air Force
Apparatus for measuring fluid level in a container
FR1583237A
(en)
*
1968-06-20
1969-10-24
1970
1970-08-28
GB
GB4153870A
patent/GB1354501A/en
not_active
Expired
1971
1971-08-23
MT
MT703A
patent/MTP703B/en
unknown
1971-08-24
CA
CA121,258A
patent/CA950012A/en
not_active
Expired
1971-08-24
ZA
ZA715663A
patent/ZA715663B/en
unknown
1971-08-24
DE
DE19712142340
patent/DE2142340A1/en
active
Pending
1971-08-24
IL
IL37571A
patent/IL37571A/en
unknown
1971-08-25
FR
FR717132038A
patent/FR2112204B1/fr
not_active
Expired
1971-08-25
CH
CH1247171A
patent/CH532834A/en
not_active
IP Right Cessation
1971-08-25
AU
AU32700/71A
patent/AU463747B2/en
not_active
Expired
1971-08-26
SE
SE7110799A
patent/SE388500B/en
unknown
1971-08-26
NL
NL7111747A
patent/NL7111747A/xx
not_active
Application Discontinuation
1971-08-26
US
US00017507A
patent/US3721929A/en
not_active
Expired – Lifetime
1971-08-27
ES
ES1971200696U
patent/ES200696Y/en
not_active
Expired
1971-08-27
BE
BE771854A
patent/BE771854A/en
unknown
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2129218A
(en)
*
1982-09-29
1984-05-10
Electronic Components Ltd
Direction indicator cancellation device
GB2128027A
(en)
*
1982-10-01
1984-04-18
Electronic Components Ltd
Gearbox indicator switch
Also Published As
Publication number
Publication date
SE388500B
(en)
1976-10-04
CH532834A
(en)
1973-01-15
IL37571A
(en)
1974-09-10
AU463747B2
(en)
1975-08-07
MTP703B
(en)
1972-02-23
ZA715663B
(en)
1972-04-26
ES200696U
(en)
1975-09-01
AU3270071A
(en)
1973-03-01
BE771854A
(en)
1971-12-31
DE2142340A1
(en)
1972-03-02
IL37571A0
(en)
1971-11-29
US3721929A
(en)
1973-03-20
FR2112204A1
(en)
1972-06-16
NL7111747A
(en)
1972-03-01
FR2112204B1
(en)
1973-06-29
ES200696Y
(en)
1976-01-16
CA950012A
(en)
1974-06-25
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Legal Events
Date
Code
Title
Description
1974-10-09
PS
Patent sealed [section 19, patents act 1949]
1982-10-06
PCNP
Patent ceased through non-payment of renewal fee
