Patent ID: 8727384
Filing Date: 2014-05-20
Classification: A62C,F16L

Abstract:
1. A coupler for coupling a first fluid delivery device to a second fluid delivery device, the first fluid delivery device having an inlet opening and a discharge opening, the second fluid delivery device having an inlet opening and a discharge opening, said coupler comprising: a base adapted for mounting at one of the openings of the first fluid delivery device, said base having: a locking member moveably coupled to said annular mounting surface of said base about said longitudinal axis, said locking member having a locking member shoulder facing said base shoulder to define a fluid chamber in fluid communication with said fluid flow passageway of said base, a connector member having a body adapted for releasably mounting at one of the openings of the second fluid delivery device, said body having a fluid flow passageway extending therethrough, and said locking member and said connector member lock together with a first locking force when a fluid flows through said coupler and into said chamber, the fluid biasing said locking member into engagement with said connector member; and a biasing element biasing said locking member toward said locking position, such that said locking member and said connector member lock together with a second locking force provided by said biasing member when there is no significant fluid flow through said coupler, said first locking force being greater than said second locking force.