Back to results
US 5,433,334 AGranted
Closure member for pressure vessel
OwnerRaymond P. Reneauinventor
Life of this patent
Estimating the term…
Abstract
A closure member for a pressure vessel, the closure member including a flange member secured with the pressure vessel, a pressure vessel door supported by the pressure vessel, a ring assembly mounted with the flange member for engaging the pressure vessel door as a result of selective rotational movement of the ring assembly from an unlocked position to a locked position by the radially contracting cooperative movement of engaging members into engagement with the pressure vessel door as a result of such rotational movement.
Claims23
A closure member for a pressure vessel having an interior chamber, comprising:
- a flange member having an inner annular surface and an outer annular surface;
- mounting means with said flange member for mounting said flange member with the pressure vessel;
- a pressure vessel door supported by said mounting means for movement of said pressure vessel door between an open position permitting access to the interior chamber of the pressure vessel and a closed position proximate said inner annular surface of said flange member where access to the interior chamber of the pressure vessel is not permitted;
- a ring assembly mounted with said flange member for selective rotational movement between a locked position wherein said pressure vessel door is lockably engaged in said closed position and an unlocked position wherein said pressure vessel door is not lockably engaged in said closed position;
- and,
- said ring assembly including engaging means movably mounted therewith for radially contracting into engagement with said pressure vessel door upon rotational movement of said ring assembly from said unlocked position to said locked position.
3 more elements
Dependencies are inferred from the claim text.