Patent ID: 9423076
Filing Date: 2016-08-23
CPC Classification: F15B,F17C

Claim Text:
1. A pressure vessel for receiving at least one fluid medium, comprising: a first shell having a collar section at least at a first end thereof, said collar section forming an opening, said opening receiving a pipe socket, said pipe socket forming a securing element for supply and discharge of a medium, said collar section being enclosed by a stiffening ring; a second shell partially encompassing said first shell and terminating at a second shell end at a distance from said collar section of said first shell, said stiffening ring being in a space between said second shell end and said collar section; a support element being a split ring surrounding said opening and located inside said first and second shells, said support element having a curved contact surface conforming to a curved inside surface of said first shell connected to said collar section and having an inner end surface defining a radial plane, said end surface and said contact surface meeting to form an acute angle therebetween at a peripheral edge on a radially outer end of said support element; a pressing device pressing said contact surface onto said first shell; and a retaining ring projecting axially into an interior of said first and second shells from an inner end surface of said support element, said retaining ring having a bent edge forming a retaining hook interlocking an annular slot opening in a ring disk of elastomeric material seated on an inner edge of said pipe socket, a radially outer edge of said ring disk forming a continuation of said curved contact surface of said support element attached to said inside surface of said first shell.