GB1449083A - Switching device having contacts - Google Patents

Switching device having contacts

Info

Publication number
GB1449083A
GB1449083A GB1981874A GB1981874A GB1449083A GB 1449083 A GB1449083 A GB 1449083A GB 1981874 A GB1981874 A GB 1981874A GB 1981874 A GB1981874 A GB 1981874A GB 1449083 A GB1449083 A GB 1449083A
Authority
GB
United Kingdom
Prior art keywords
group
substituted
formula
protected amino
aralkyl
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
GB1981874A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1449083A publication Critical patent/GB1449083A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0201—Materials for reed contacts

Landscapes

  • Contacts (AREA)
  • Thyristors (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1449083 Active esters of amino acids SUMITOMO CHEMICAL CO Ltd 12 Dec 1973 [13 Dec 1972] 57669/73 Heading C2C Active esters of N-protected amino acids are prepared by reacting an N-protected amino acid of the formula where R<SP>1</SP> is a divalent straight- or branchedchain aliphatic or cycloaliphatic hydrocarbyl group or a substituted or unsubstituted aromatic hydrocarbyl group, or a group comprising two or more such aliphatic, cycloaliphatic or aromatic groups bonded together through -CONH- linkages and XYN is a protected amino group, with a compound of the formula where R<SP>2</SP> is an aryl group, the reaction being carried out in the presence of a tertiary amine and a phosphorous acid ester of the formula where R<SP>3</SP> is a hydrogen atom or a substituted or unsubstituted alkyl, aralkyl or aryl group and R<SP>4</SP> and R<SP>5</SP>, which may be the same or different, are substituted or unsubstituted alkyl, aralkyl or aryl.
GB1981874A 1973-05-09 1974-05-06 Switching device having contacts Expired GB1449083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7306445,A NL169530C (en) 1973-05-09 1973-05-09 SWITCHING DEVICE WITH TONGUE CONTACTS.

Publications (1)

Publication Number Publication Date
GB1449083A true GB1449083A (en) 1976-09-08

Family

ID=19818822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1981874A Expired GB1449083A (en) 1973-05-09 1974-05-06 Switching device having contacts

Country Status (12)

Country Link
US (1) US3889098A (en)
JP (1) JPS576765B2 (en)
AT (1) AT327311B (en)
BE (1) BE814679A (en)
CH (1) CH600523A5 (en)
DE (1) DE2419102C3 (en)
ES (1) ES426054A1 (en)
FR (1) FR2229128B1 (en)
GB (1) GB1449083A (en)
IT (1) IT1010437B (en)
NL (1) NL169530C (en)
SE (1) SE387770B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5892424A (en) * 1995-02-10 1999-04-06 The Furukawa Electric Co., Ltd. Encapsulated contact material and a manufacturing method therefor, and a manufacturing method and a using method for an encapsulated contact

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1517702A (en) * 1974-09-19 1978-07-12 Fujitsu Ltd Electrical contact
CH594973A5 (en) * 1975-05-28 1978-01-31 Bbc Brown Boveri & Cie
DE2638135A1 (en) * 1976-08-25 1978-03-02 Heraeus Gmbh W C ELECTRICAL SWITCHING CONTACT
US4117291A (en) * 1977-05-19 1978-09-26 Gte Automatic Electric Laboratories Incorporated Reed switch
US4607148A (en) * 1985-08-08 1986-08-19 General Electric Company Change of state contact material for electric circuit interrupters
JPS6419214A (en) * 1987-07-13 1989-01-23 Satoru Yoshinaka Disposal at sea of combustible industrial waste
JPH0730900B2 (en) * 1989-09-26 1995-04-10 川崎汽船株式会社 Living waste incineration plant
US5325079A (en) * 1993-01-21 1994-06-28 Kaloust P. Sogoian Electromagnetic relay with integral contacts
DE19930449A1 (en) * 1999-07-02 2001-01-18 Heraeus Gmbh W C Palladium-free composition consists of a silver, silver alloy and/or silver oxide substrate coated with a layer of rhenium and/or rhodium
US7564330B2 (en) * 2007-04-18 2009-07-21 Key Safety Systems, Inc. Reed switch contact coating

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2038929B2 (en) * 1969-08-29 1978-03-16 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Contact for a switching device in communications engineering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5892424A (en) * 1995-02-10 1999-04-06 The Furukawa Electric Co., Ltd. Encapsulated contact material and a manufacturing method therefor, and a manufacturing method and a using method for an encapsulated contact
GB2297867B (en) * 1995-02-10 1999-06-16 Furukawa Electric Co Ltd An encapsulated contact material and a manufacturing method therefor

Also Published As

Publication number Publication date
NL169530B (en) 1982-02-16
FR2229128A1 (en) 1974-12-06
ATA371574A (en) 1975-04-15
IT1010437B (en) 1977-01-10
JPS5031359A (en) 1975-03-27
US3889098A (en) 1975-06-10
DE2419102A1 (en) 1974-11-28
BE814679A (en) 1974-11-07
FR2229128B1 (en) 1977-06-24
SE387770B (en) 1976-09-13
NL169530C (en) 1982-07-16
AT327311B (en) 1976-01-26
JPS576765B2 (en) 1982-02-06
DE2419102B2 (en) 1980-03-27
CH600523A5 (en) 1978-06-15
AU6864974A (en) 1975-11-06
DE2419102C3 (en) 1981-01-22
NL7306445A (en) 1974-11-12
ES426054A1 (en) 1976-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee