GB1371123A – Electric switches
– Google Patents
GB1371123A – Electric switches
– Google Patents
Electric switches
Info
Publication number
GB1371123A
GB1371123A
GB3011672A
GB3011672A
GB1371123A
GB 1371123 A
GB1371123 A
GB 1371123A
GB 3011672 A
GB3011672 A
GB 3011672A
GB 3011672 A
GB3011672 A
GB 3011672A
GB 1371123 A
GB1371123 A
GB 1371123A
Authority
GB
United Kingdom
Prior art keywords
length
plug
casing
reduced
end portion
Prior art date
1971-07-16
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
GB3011672A
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.)
MICRO DEVICES CORP
Original Assignee
MICRO DEVICES CORP
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.)
1971-07-16
Filing date
1972-06-27
Publication date
1974-10-23
1972-06-27
Application filed by MICRO DEVICES CORP
filed
Critical
MICRO DEVICES CORP
1974-10-23
Publication of GB1371123A
publication
Critical
patent/GB1371123A/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
H01H37/00—Thermally-actuated switches
H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
H01H37/764—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet
H01H37/765—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet using a sliding contact between a metallic cylindrical housing and a central electrode
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
Abstract
1371123 Thermal switches MICRO DEVICES CORP 27 June 1972 [16 July 1971] 30116/72 Heading H1N A thermal cut-out is identical to the one described with reference to Figs. 1-5 of U.K. Specification 1,255,589, except that the identical reduced diameter end portions 36, 38 of the insulating plug 16 closing one end of the conductive casing 12 are at least as long as the enlarged diameter central portion 32. Because the plug 16 is symmetrical about a central axis transverse to its length probelms of incorrect orientation of the plug do not arise when it is automatically assembled in the casing 12. The greater axial length of end portion 36 ensures that the length of plug insulation between the casing end flange 44 and the exposed outer end of conductor 20 is greater than in U.K. Specification 1,255,589. As the overall length of the plug 16 is the same as that of the aforementioned U.K. Specification the length of the central portion 32 is reduced and hence the length of the counterbore 34 in casing 12 is reduced. Each end portion 36, 38 has two frusto-conical parts 35, 37 between which an annular seat 139 for biasing spring 54 is formed. In Figs. 8 and 9 (not shown) each end portion 36, 38 has a single smooth frustoconical surface.
GB3011672A
1971-07-16
1972-06-27
Electric switches
Expired
GB1371123A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US16317071A
1971-07-16
1971-07-16
US403539A
US3875546A
(en)
1971-07-16
1973-10-04
Electrical switch construction and end plug therefor or the like
Publications (1)
Publication Number
Publication Date
GB1371123A
true
GB1371123A
(en)
1974-10-23
Family
ID=26859405
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3011672A
Expired
GB1371123A
(en)
1971-07-16
1972-06-27
Electric switches
Country Status (5)
Country
Link
US
(2)
US3778742A
(en)
CA
(1)
CA960731A
(en)
DE
(1)
DE2233792A1
(en)
GB
(1)
GB1371123A
(en)
NL
(1)
NL7209079A
(en)
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3778742A
(en)
*
1971-07-16
1973-12-11
Micro Devices Corp
Electrical switch construction and end plug therefor or the like
DE2424385B2
(en)
*
1974-05-20
1976-07-08
OVERHEATING PROTECTION FOR ELECTRIC CIGAR LIGHTER
US3992771A
(en)
*
1974-05-22
1976-11-23
Emerson Electric Co.
Method of making thermal limiter construction
US4068204A
(en)
*
1975-12-26
1978-01-10
New Nippon Electric Company, Ltd.
Thermal fuse employing a slidable resilient contact member in a conductive housing
US4197634A
(en)
*
1976-08-23
1980-04-15
Emerson Electric Co.
Method of making a thermally actuatable electrical switch construction
IT1192642B
(en)
*
1978-03-28
1988-04-27
Littelfuse Inc
FUSE, OR SWITCH, ENABLED BY ENVIRONMENTAL HEAT AND MANUFACTURING METHOD
US4276532A
(en)
*
1978-07-08
1981-06-30
Murata Manufacturing Co., Ltd.
Thermal fuse
US4362388A
(en)
*
1980-11-17
1982-12-07
Bethlehem Steel Corp.
Remote measurement of concentration of a gas specie by resonance absorption
JP4583228B2
(en)
*
2005-04-18
2010-11-17
エヌイーシー ショット コンポーネンツ株式会社
Thermal pellet type thermal fuse
US7843307B2
(en)
*
2007-10-05
2010-11-30
Nec Schott Components Corporation
Thermal fuse employing thermosensitive pellet
US8070503B2
(en)
*
2009-05-26
2011-12-06
Spin Master Ltd.
Charging interface for rechargeable devices
GB2471869B
(en)
*
2009-07-15
2012-04-25
Vishay Resistors Belgium Bvba
Thermal switch
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3778742A
(en)
*
1971-07-16
1973-12-11
Micro Devices Corp
Electrical switch construction and end plug therefor or the like
1971
1971-07-16
US
US00163170A
patent/US3778742A/en
not_active
Expired – Lifetime
1972
1972-06-23
CA
CA145,582A
patent/CA960731A/en
not_active
Expired
1972-06-27
GB
GB3011672A
patent/GB1371123A/en
not_active
Expired
1972-06-29
NL
NL7209079A
patent/NL7209079A/xx
unknown
1972-07-10
DE
DE2233792A
patent/DE2233792A1/en
active
Pending
1973
1973-10-04
US
US403539A
patent/US3875546A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
US3778742A
(en)
1973-12-11
NL7209079A
(en)
1973-01-18
DE2233792A1
(en)
1973-01-25
CA960731A
(en)
1975-01-07
US3875546A
(en)
1975-04-01
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Legal Events
Date
Code
Title
Description
1975-03-05
PS
Patent sealed [section 19, patents act 1949]
1978-01-25
PLNP
Patent lapsed through nonpayment of renewal fees
