Check valve with locking key and pull cord

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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F16K 15/18 (2006.01) F16K 15/02 (2006.01) F16K 15/20 (2006.01)

Patent

CA 2662243

A check valve for an inflatable device comprising a poppet urged by a conical spring to annularly seal uniformly around its entire periphery to assure more uniform cracking pressure about its entire periphery. In one embodiment the check valve comprises a locking key to lock the valve closed irrespective of the cracking pressure that may otherwise may have cracked the valve open. In another embodiment, the check valve comprises a manual dump feature that allows rapid dumping of air from the inflatable irrespective of low cracking pressure that may exist in the inflatable.

Soupape de contrôle pour un dispositif gonflable comprenant un clapet poussé par un ressort conique à se fermer de manière étanche annulairement et uniformément sur toute sa périphérie afin d'assurer une pression de déclenchement plus uniforme sur toute sa périphérie. Dans un mode de réalisation, la soupape de contrôle comprend une clé de verrouillage pour verrouiller la soupape fermée indépendamment de la pression de déclenchement qui aurait autrement pu déclencher l'ouverture de la soupape. Dans un autre mode de réalisation, la soupape de contrôle comprend une fonctionnalité de largage manuel qui permet un largage rapide d'air depuis le dispositif gonflable indépendamment de la faible pression de déclenchement qui peut exister dans le dispositif gonflable.

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