FI770122A - - Google Patents

Info

Publication number
FI770122A
FI770122A FI770122A FI770122A FI770122A FI 770122 A FI770122 A FI 770122A FI 770122 A FI770122 A FI 770122A FI 770122 A FI770122 A FI 770122A FI 770122 A FI770122 A FI 770122A
Authority
FI
Finland
Application number
FI770122A
Other languages
Finnish (fi)
Inventor
Josef Huda
Albert Beier
Wolfgang Herrmann
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
Application filed by Balcke Duerr Ag filed Critical Balcke Duerr Ag
Publication of FI770122A publication Critical patent/FI770122A/fi

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • 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
FI770122A 1976-03-25 1977-01-17 FI770122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2612661A DE2612661C2 (en) 1976-03-25 1976-03-25 Branch for welding pipes to a collector

Publications (1)

Publication Number Publication Date
FI770122A true FI770122A (en) 1977-09-26

Family

ID=5973392

Family Applications (1)

Application Number Title Priority Date Filing Date
FI770122A FI770122A (en) 1976-03-25 1977-01-17

Country Status (6)

Country Link
AT (1) AT353066B (en)
DE (1) DE2612661C2 (en)
ES (1) ES238786Y (en)
FI (1) FI770122A (en)
NL (1) NL7700476A (en)
ZA (1) ZA77392B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144762A1 (en) * 1981-11-11 1983-05-19 Albrecht Ing.(grad.) 5090 Leverkusen Hesseler Method of producing the tube nest of heat exchangers or the like and heat-exchanger tube nest produced according to this method
DE3522643A1 (en) * 1985-06-25 1987-01-08 Kloeckner Wilhelmsburger Gmbh Method and apparatus for welding a connection piece to a container or to part of a container
DE3715521C1 (en) * 1987-05-09 1988-08-25 Balcke-Duerr Ag, 4030 Ratingen, De Metal-active gas welding method for pipe branches - using ceramic support ring around inside wall of hole in container to which pipe branch is to be welded

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE803906C (en) * 1949-11-22 1951-04-12 Duerrwerke Akt Ges Attachment of high pressure nipples to collectors
DE802676C (en) * 1950-01-21 1951-02-19 Walter & Cie Akt Ges Process for welding pipe nipples
DE1627627U (en) 1951-07-21 1951-08-30 Wilhelm Paffrath ELECTROCHEMICALLY TREATED REFLECTORS FOR CONTINUOUS FLASHING DEVICES.
DE1627627B2 (en) * 1967-01-19 1973-09-27 L. & C. Steinmueller Gmbh, 5270 Gummersbach Process for welding pipe nipples to steam collectors

Also Published As

Publication number Publication date
ATA978576A (en) 1979-03-15
DE2612661A1 (en) 1976-12-02
DE2612661C2 (en) 1985-04-25
AT353066B (en) 1979-10-25
ZA77392B (en) 1977-12-28
ES238786Y (en) 1980-04-16
ES238786U (en) 1979-05-01
NL7700476A (en) 1977-09-27
DE2612661B1 (en) 1976-12-02

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Legal Events

Date Code Title Description
FC Application refused

Owner name: BALCKE-DUERR AG