US 11,807,433 B2
Pressure containing/relieving cap for a liquified natural gas receptacle
Benjamin D. Kaminski, Golden Valley, MN (US); Jason Mikulski, Bloomington, MN (US); Paul E. LeMay, Shoreview, MN (US); and Daniel T. Nicolino, Uniontown, OH (US)
Assigned to Parker-Hannifin Corporation, Cleveland, OH (US)
Filed by Parker-Hannifin Corporation, Cleveland, OH (US)
Filed on May 21, 2021, as Appl. No. 17/326,413.
Claims priority of provisional application 63/031,123, filed on May 28, 2020.
Prior Publication US 2021/0371174 A1, Dec. 2, 2021
Int. Cl. B65D 51/16 (2006.01); F16K 17/168 (2006.01); F17C 13/06 (2006.01); B60K 15/04 (2006.01)
CPC B65D 51/1688 (2013.01) [F16K 17/168 (2013.01); F17C 13/06 (2013.01); B60K 15/0409 (2013.01); B60K 2015/0432 (2013.01); F17C 2205/0311 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cap for forming a closure in a receptacle of a container, the cap comprising:
a valve configured to relieve trapped gas in the receptacle; and
a catch configured to control movement of the cap during removal of the cap from the receptacle;
the cap being configured such that:
(i) in a first stage of removal of the cap from the receptacle, the valve is activatable to permit the trapped gas to vent from the receptacle while the cap remains secured to the receptacle; and
(ii) in a second stage of removal of the cap from the receptacle, the cap is movable to an intermediate removal position in which the catch intercepts part of the receptacle to control movement of the cap before further removal of the cap from the receptacle; and
further comprising a lock that is operative in at least (i) a locked state to secure the cap to the receptacle, and (ii) a release state to enable the cap to be removed from the receptacle;
wherein the cap is configured such that in the locked state: (i) the valve is activatable to vent trapped gas, and (ii) the lock prevents transition to the second stage of removal without first achieving the release state of the lock;
wherein the cap is configured such that axial movement of the cap by a predetermined axial amount and rotational movement by a predetermined rotational amount permits transition of the lock from the lock state to the release state at a release position;
wherein the lock interacts with part of the receptacle via a stop at a lock position to provide the lock state, and the part of the receptacle releases from the stop at a release position to provide the release state; and
wherein the catch is at the intermediate removal position which is circumferentially and axially offset from the lock position and axially offset from the release position, the cap being configured to freely move axially from the release position to the catch at the intermediate removal position without rotation of the cap, and wherein the catch is configured to hold the cap at the intermediate removal position; and
wherein the cap is configured such that at least rotational movement of the cap from the intermediate removal position by a predetermined amount enables removal of the cap from the receptacle.