Abstract: In one general aspect, the present disclosure provides a drainage system. The drainage system may include a container having an interior and a mouth, the mouth having an outer surface and an opening. A frangible seal may cover the opening. A cap may be secured to the mouth, and the cap may be in fluid communication with a drainage line. The cap may have an inner surface for engaging with the outer surface of the mouth. The drainage system may further include a retention ring with a collar having an inner surface configured to engage an outer surface of the cap, where the retention ring includes a bead for at least partially concentrating a restriction force provided by the retention ring on an adjacent area of the outer surface of the cap.

Abstract: In one general aspect, the present disclosure provides a drainage system. The drainage system may include a container having an interior and a mouth, the mouth having an outer surface and an opening. A frangible seal may cover the opening. A cap may be secured to the mouth, and the cap may be in fluid communication with a drainage line. The cap may have an inner surface for engaging with the outer surface of the mouth. The drainage system may further include a retention ring with a collar having an inner surface configured to engage an outer surface of the cap, where the retention ring includes a bead for at least partially concentrating a restriction force provided by the retention ring on an adjacent area of the outer surface of the cap.

Abstract: The actuator includes a shroud adapted to be situated on an aerosol container over the stem and an actuation member mounted on and moveable within the shroud to depress the stem by the application of an external force applied to the top surface of the actuation member. The actuation member includes a nozzle and a conduit for connecting the stem and the nozzle. A hood is normally positioned to block the actuation member from being moved to depress the stem. A locking member normally intersects the path of movement of the hood to lock the hood in its blocking position. The locking member has two sections both of which must be simultaneously moved to a position remote from the path of hood movement such that the hood may be moved from its blocking position, allowing the actuation member to be moved to depress the stem.

Abstract: The actuator includes a shroud adapted to be situated on an aerosol container over the stem and an actuation member mounted on and moveable within the shroud to depress the stem by the application of an external force applied to the top surface of the actuation member. The actuation member includes a nozzle and a conduit for connecting the stem and the nozzle. A hood is normally positioned to block the actuation member from being moved to depress the stem. A locking member normally intersects the path of movement of the hood to lock the hood in its blocking position. The locking member has two sections both of which must be simultaneously moved to a position remote from the path of hood movement such that the hood may be moved from its blocking position, allowing the actuation member to be moved to depress the stem.

Abstract: The actuator includes a shroud adapted to be situated on an aerosol container over the stem and an actuation member mounted on and moveable within the shroud to depress the stem by the application of an external force applied to the top surface of the actuation member. The actuation member includes a nozzle and a conduit for connecting the stem and the nozzle. A hood is normally positioned to block the actuation member from being moved to depress the stem. A locking member normally intersects the path of movement of the hood to lock the hood in its blocking position. The locking member has two sections both of which must be simultaneously moved to a position remote from the path of hood movement such that the hood may be moved from its blocking position, allowing the actuation member to be moved to depress the stem.

Abstract: In one general aspect, the present disclosure provides a drainage system. The drainage system may include a container having an interior and a mouth, the mouth having an outer surface and an opening. A frangible seal may cover the opening. A cap may be secured to the mouth, and the cap may be in fluid communication with a drainage line. The cap may have an inner surface for engaging with the outer surface of the mouth. The drainage system may further include a retention ring with a collar having an inner surface configured to engage an outer surface of the cap, where the retention ring includes a bead for at least partially concentrating a restriction force provided by the retention ring on an adjacent area of the outer surface of the cap.

Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frustoconical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket.

Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frustoconical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket. In an advantageous embodiment, the locking ring is assembled with a support disk to optimally orient the locking ring with respect to the fitting and the pipe end.

Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frustoconical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket. In an advantageous embodiment, the locking ring is assembled with a support disk to optimally orient the locking ring with respect to the fitting and the pipe end.

Abstract: A pier for a modular, portable, interlocking decking system, the pier having a generally planar plate with a bottom surface and a top surface and a plurality of receiver blocks extending from the top surface of the plate. Each receiver block has a generally dome-shaped load-bearing surface. A plurality of piers is used in a decking system along with at least one surface pad, the surface pad having a generally planar, horizontal upper surface, and a lower portion including a plurality of block receptacles. The bottom surface of the plate of each structural pier rests upon a supporting surface, and the block receptacles of the surface pad each engage the generally dome-shaped load-bearing surface of a corresponding structural pier.