Abstract: A bi-directional locking socket for use with a seal device which includes a shackle having a plurality of locking elements on a surface thereof. The socket comprises a locking insert forming a locking arrangement including a body defining a chamber therein. The locking insert further includes opposing top and bottom ends where the top end defines a top opening communicating with the chamber, and the bottom end defines a bottom opening communicating with the chamber. A plurality of mirror image spaced fingers define a passageway extending through the chamber. The plurality of fingers allow passage of the locking elements as a free end of the shackle is pulled through the passageway via either the top or the bottom openings in opposite insertion directions, and lock with a locking element of the shackle when the shackle movement is in an opposite direction to the insertion direction. In the alternative, the socket has a chamber with the locking arrangement formed one piece therewith.

Abstract: A metal reverse buckling sanitary rupture disc is provided having a central bulged section in which the convex surface of the bulged section is relatively smooth and of substantially uninterrupted configuration. A small segment region of the central bulged section is strain hardened by plastic deformation causing the segment region to have greater residual stress than the remainder of the central bulged section. When the disc is subjected to an overpressure condition against the convex surface of the bulged section sufficient to effect reversal of the bulged section, such reversal commences at the higher residual stress segment region of the bulged section.

Abstract: A metal reverse buckling sanitary rupture disc is provided having a central bulged section in which the convex surface of the bulged section is relatively smooth and of substantially uninterrupted configuration. A small segment region of the central bulged section is strain hardened by plastic deformation causing the segment region to have greater residual stress than the remainder of the central bulged section. When the disc is subjected to an overpressure condition against the convex surface of the bulged section sufficient to effect reversal of the bulged section, such reversal commences at the higher residual stress segment region of the bulged section.

Abstract: A known type of contractible sealing ring for an electric watt-hour meter has improved lock assemblies on the ends of the ring. The lock assemblies are designed to receive many different types of known security locking devices, such as snap lock fasteners, barrel lock fasteners and threaded fasteners with wire seals or plastic padlocks, using a universal multiple lock assembly.

Abstract: The present invention provides an apparatus and method whereby the reliability and tamper-resistance of tamper indicators can be improved. A flexible connector may be routed through a latch for an enclosure such as a door or container, and the free ends of the flexible connector may be passed through a first locking member and firmly attached to an insert through the use of one or more attachment members such as set screws. A second locking member may then be assembled in interlocking relation with the first locking member to form an interlocked assembly around the insert. The insert may have one or more sharp projections extending toward the first or second locking member so that any compressive force applied in an attempt to disassemble the interlocked assembly results in permanent, visible damage to the first or second locking member.

Abstract: A tamperproof security seal for a container which includes an outer cover member having a closed end wall with a plurality of through-holes therein. A locking member is adapted to be accommodated in the outer cover member with the locking member being formed of a sheet steel and having a plurality of rows of openings extending across a width of the locking member. The openings in each row are spaced from each other in a longitudinal direction of the locking member and are in axial alignment with each other and to the respective rows are in axial alignment with the respective openings of the end wall of the cover member. A drawstring is threaded through the openings in the locking member and the outer cover member so as to form a loop portion adapted to be placed over an opening of the container.

Abstract: A tamperproof security seal for a container and a method of manufacturing the same wherein a seal member is provided with a plurality of partition walls disposed in parallel to one another and in parallel to the end wall sections so as to define a plurality of channels extending across a width of the seal mamber. A plurality of holes are provided in each of the partition walls and in the end walls sections, with the holes extending through the partition walls and the end walls sections in a direction perpendicular to a longitudinal center axis of the respective channels. The holes in the partition walls and the end walls sections are disposed in alignment so as to enable a drawstring to be threaded therethrough. Upon a crimping of the seal member, the partition walls and the end walls sections are deformed so that the openings form individual anchoring or fixing points on the drawstring so as to prevent a withdraw of the drawstring from the seal member and prevent unauthorized access to the container.

Abstract: This invention provides a device for closing a flexible container which comprises a body portion having first and second opposed gripping arms extending therefrom. The arms are each adapted to be folded about a fold line relative to the body portion so that the arms, with the body, are capable of at least partially encircling the flexible container for closure thereof. Each of the arms has at least one gripping and engaging means extending inwardly therefrom, and the body has a first gripping and engaging means adapted to fixedly engage the flexible container in one direction and a second gripping and engaging means adapted to fixedly engage the flexible container in a second opposed direction. Means are provided in at least one of the body or arm members for passage of a tie member operatively associated therewith. The device provides a tamperproof closure for a flexible container when used in combination with a tie and deformable sealing element.