(19)
(11) EP 1 335 162 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.03.2006 Bulletin 2006/11

(43) Date of publication A2:
13.08.2003 Bulletin 2003/33

(21) Application number: 03001643.0

(22) Date of filing: 24.01.2003
(51) International Patent Classification (IPC): 
F17C 1/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 06.02.2002 US 354819 P

(71) Applicant: Essef Corporation d.b.a. Pentair Water Treatment
Chardon, Ohio 44024 (US)

(72) Inventors:
  • Ellis, Goerge S.
    Chardon, Ohio 44024 (US)
  • Kothera, Kenneth R.
    Mentor, Ohio 44060 (US)
  • Gargiulo, Christian
    Mentor, Ohio 44060 (US)

(74) Representative: P&TS Patents & Technology Surveys SA 
Terreaux 7 P.O.Box 2848
2001 Neuchâtel
2001 Neuchâtel (CH)

   


(54) Pressure vessel


(57) A pressure vessel having a relief area onto which a flange of a side port can be attached. The relief area includes a planar mating surface raised from the cylindrical sidewall of the vessel. A method for forming the pressure vessel includes providing a cylindrical mandrel provided with a side port spacer. Fiberglass is wrapped onto the mandrel and space. The fiberglass is impregnated with resin and the resin is cured. A metallic insert ring is embedded in a full bore open end of the pressure vessel. The ring has a cross-section having a height to width ratio of less than 0.7.







Search report