Pressure vessel cap
OwnerHeinz Bolli, Markus Wyssinventors
Life of this patent
Estimating the term…
Abstract
A closure for a pressure vessel having a collar connectable to the pressure vessel and to a cap, a seal disposed in an area where the collar and cap contact each other, and a plurality of clamping elements for generating the surface pressure between the collar and the cap. The collar comprises an integral sealing flange having an upper flat sealing surface and a lower circumferential annular bead at least partially circular in cross-section. A plurality of C-shaped clamps are displaceably, releasably and form-fittingly held on said lower circumferential annular bead. Each C-shaped clamp comprises one pressure screw and constitutes a clamping element. In the operational state of the closure, the C-shaped clamps press on the edge region of the cap resting on the sealing flange of the collar.
Claims10
In a closure for pressure vessels, the closure having a collar (1) connectable to the pressure vessel and to a cap (2), a seal (5) disposed in an area where the cap (2) and the collar (1) contact each other, and a plurality of clamping elements (3) for generating the surface pressure between the collar (1) and the cap (2), the improvement comprising:
- a sealing flange (12) formed as one piece on the collar (1), said sealing flange (12) having a flat sealing surface (13) on a top side and a circumferential annular bead (15) at least partially circular in cross section along a bottom side, a plurality of C-shaped clamps (30) displaceably, releasably and form-fittingly connected to said circumferential annular bead (15), each of said C-shaped clamps comprising one pressure screw (31) and constituting one of said clamping elements (3), said plurality of C-shaped clamps in the operational state pressing on an edge portion of the cap (2) resting on the sealing flange (12) of the collar (1), an upper leg (32) of each of the C-shaped clamps (30) of each of the clamping elements (3) forming a threaded opening, and a lower leg (33) of each of the C-shaped clamps (30) having a mouth (36) positioned away from an opening formed by the upper leg (32), the lower leg (33) and a connecting part (34) of each of the C-shaped clamps (30), the mouth (36) comprising a radially, inwardly opened groove enclosing the annular bead (15) and the center axis of the threaded opening centrally intersecting the mouth (36) in the lower leg (33).
Dependencies are inferred from the claim text.