POLYVOLUME BELLOWS AND METHOD OF MANUFACTURING THE SAME Russian patent published in 2003 - IPC

Abstract RU 2215214 C2

FIELD: construction industry, in particular, construction and operation of various types of pipelines. SUBSTANCE: bellows have at least two corrugated enclosures inserted one into another. Enclosure corrugations have equal pitch and rest one upon another over axially aligned slots. Enclosures are welded to one another at their ends. Method involves creating excessive pressure in cavity defined between adjacent enclosures; installing separable mold outside pipe blank; pressurizing and supplying pressure of forming medium in mold and simultaneously applying axial force to pipeline blank; before pressurizing, inserting pipeline blank into single bellow; expanding single bellow to size defining volume of cavity between bellows; setting separable mold walls in single bellow slots; corrugating polyvolume bellows until corrugation pitch of predetermined size is set. EFFECT: enhanced reliability in operation and wider range of technical facilities. 3 cl, 7 dwg

Similar patents RU2215214C2

Title Year Author Number
NONRETURN-SHUTOFF OR SHUTOFF VALVE 2002
  • Zosimov V.A.
  • Chavshino Ju.B.
RU2219411C1
UNIVERSAL COMBINATION GATE 2001
  • Zosimov V.A.
  • Chavshino Ju.B.
RU2219413C2
UNIVERSAL CUT-OFF VALVE 2002
  • Gorbach V.D.
  • Zosimov V.A.
  • Chavshino Ju.B.
RU2238465C2
UNIVERSAL WEDGE VALVE 2002
  • Gorbach V.D.
  • Zosimov V.A.
  • Chavshino Ju.B.
RU2238464C2
BELLOW FORMING DIE 2007
  • Egorov Vladislav Gennad'Evich
  • Zakharchenko Nikolaj Dmitrievich
  • Tanskij Vladimir Alekseevich
  • Golub Valerij Vasil'Evich
  • Davydov Oleg Jur'Evich
RU2354481C1
SHOCK ABSORBER OF DRILLING STRING 1998
  • Kosjak A.Ju.
  • Korchagin Ju.I.
  • Kirillin V.I.
  • Kas'Jan Ju.F.
  • Larin A.G.
  • Pol'Shakov I.S.
  • Razuvaev V.D.
RU2149253C1
BELLOWS MANUFACTURING METHOD 2020
  • Logunov Leonid Petrovich
  • Nemsadze Revaz Archilovich
  • Turev Maksim Pavlovich
RU2732845C1
METHOD FOR MANUFACTURE OF SINGLE-CORRUGATION BELLOWS 2007
  • Mitin Anatolij Semenovich
  • Mitin Andrej Anatol'Evich
RU2341348C2
PROCESS OF FORMATION OF REGULAR HEXAGONAL FIBER STRUCTURE ( VARIANTS ) 2002
  • Kutasov V.A.
  • Bessonova Eh.Ju.
RU2210795C1
TECHNOLOGY FORMING REGULAR HEXAGONAL FIBER STRUCTURE 2000
  • Kutasov V.A.
  • Bessonova Eh.Ju.
RU2199140C2

RU 2 215 214 C2

Authors

Zosimov V.A.

Maljuta V.A.

Chavshino Ju.B.

Dates

2003-10-27Published

2001-11-26Filed