Abstract: A security seal includes a first seal member having a first locking portion and a first detection circuit portion. A second seal member has a second locking portion and a second detection circuit portion. The first locking portion is engageable to the second locking portion to engage and irretrievably lock together the first seal member to the second seal member. Engagement of the first seal member to the second seal member operatively connects the first detection circuit portion to the second detection circuit portion to provide a combined detection circuit throughout the security seal. The first seal member preferably includes a spear having the first locking portion, and the second seal member includes a sleeve having the second locking portion. The spear is insertible into the sleeve to engage the first locking portion to the second locking portion, and to thereby engage the first seal member and the first detection circuit portion to the second seal member and the second detection circuit portion.

Abstract: A tap assembly for a container of liquid comprises a delivery spout molded of a gas impermeable plastic and a unitary dispenser closure molded of an elastomeric material having the required resiliency for valve operation. The spout has a neck which opens outwardly into a hemispherical bowl terminating in a rim and having an opening providing a dispensing port. The closure has a bowl-shaped diaphragmic wall which snaps onto the rim and seat in the bowl of the spout in a closed-valve position as a seal across the neck and port openings. An integral toggle projects axially forwardly from the bottom of the bowl-shaped wall for finger manipulation to distort the latter from the closed-valve position to an open valve-position of partially unseated configuration for dispensing liquid from the container. A plug, molded of a gas impermeable plastic, forms a temporary gas barrier and comprises a stopper portion sized to fit the neck of the spout and a forward extension which projects into a hollow formed in the toggle.

Abstract: A two piece dispenser closure, comprising a housing and an interior valve member, is molded of elastomeric plastic material for snap-on mounting on the delivery end of a tubular spout of the flexible plastic container of a liquid in bag-in-a-box packaging. The housing has a valve seat formed with an opening and a forward extension formed as a hollow compressible push button. The interior valve member has a valve body with a forward portion extending into the push button. The valve body is mounted on a normally forwardly convex annular diaphragm which retains the valve body in a seated, closed position in the housing valve seat. The diaphragm is formed with openings and is resiliently deformable to an invaginated configuration when an inward force is applied to the valve body forward portion through the push button to unseat the valve body whereby liquid flows from the tubular spout through the diaphragm openings, between the valve body and valve seat and is dispensed through the valve seat opening.