GB1537957A - Welding of pipes - Google Patents

Welding of pipes

Info

Publication number
GB1537957A
GB1537957A GB226777A GB226777A GB1537957A GB 1537957 A GB1537957 A GB 1537957A GB 226777 A GB226777 A GB 226777A GB 226777 A GB226777 A GB 226777A GB 1537957 A GB1537957 A GB 1537957A
Authority
GB
United Kingdom
Prior art keywords
pipes
welding
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
GB226777A
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.)
Balcke Duerr AG
Original Assignee
Balcke Duerr AG
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
Priority claimed from DE2612661A external-priority patent/DE2612661C2/en
Priority claimed from JP12604476A external-priority patent/JPS5351987A/en
Application filed by Balcke Duerr AG filed Critical Balcke Duerr AG
Priority claimed from JP2920577A external-priority patent/JPS53115188A/en
Publication of GB1537957A publication Critical patent/GB1537957A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • H01S5/227—Buried mesa structure ; Striped active layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • H01S5/227—Buried mesa structure ; Striped active layer
    • H01S5/2275—Buried mesa structure ; Striped active layer mesa created by etching

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
GB226777A 1976-03-25 1977-01-20 Welding of pipes Expired GB1537957A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2612661A DE2612661C2 (en) 1976-03-25 1976-03-25 Branch for welding pipes to a collector
JP12604476A JPS5351987A (en) 1976-10-22 1976-10-22 Semiconductor laser
JP2920577A JPS53115188A (en) 1977-03-18 1977-03-18 Semiconductor laser

Publications (1)

Publication Number Publication Date
GB1537957A true GB1537957A (en) 1979-01-10

Family

ID=27186798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB226777A Expired GB1537957A (en) 1976-03-25 1977-01-20 Welding of pipes

Country Status (1)

Country Link
GB (1) GB1537957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244021A (en) * 1990-03-20 1991-11-20 Bicc Plc Jointing tubular electric busbars
EP1317988A2 (en) * 2001-12-10 2003-06-11 Sachsenring Fahrzeugtechnik GmbH Component in vehicle parts with a joint achieved by pressure welding

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244021A (en) * 1990-03-20 1991-11-20 Bicc Plc Jointing tubular electric busbars
GB2244021B (en) * 1990-03-20 1993-12-22 Bicc Plc Jointing tubular electric busbars
EP1317988A2 (en) * 2001-12-10 2003-06-11 Sachsenring Fahrzeugtechnik GmbH Component in vehicle parts with a joint achieved by pressure welding
EP1317988A3 (en) * 2001-12-10 2004-01-21 Sachsenring Fahrzeugtechnik GmbH Component in vehicle parts with a joint achieved by pressure welding

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930120