PULL SEAL WITH TWO-WAY LOCK Russian patent published in 2009 - IPC B65D63/10 

FIELD: mechanics.

SUBSTANCE: locking seal represents a two-way lock that receives and locks eye ring furnished with at least one locking element with locking shoulders. Note that aforesaid eye ring comes engages aforesaid lock that comprises a casing, the latter lengthwise axis defining lengthwise direction. Note here that aforesaid casing features a top face that defines top hole communicating with the chamber in longitudinal direction and bottom face defining the bottom hole to communicate with the said chamber in longitudinal direction. Mind that the chamber accommodates multiple flexible pins arranged lengthwise, each allowing at least one eye ring locking element to pass lengthwise, in opposite directions of insertion through the top or bottom hole. At least one of the pints serves to lock at least one locking element shoulder with eye ring forced in direction opposite to that of insertion for the latter to be locked and at least one pin to be engaged in opposite direction. Note that the pins are arranged to allow at least one locking element can pass through the chamber and both afore mentioned holes in one direction of insertion.

EFFECT: higher strength of seals.

30 cl, 25 dwg