A collapsible intermodal shipping container is provided. The container includes door frame posts and sidewalls that are each segmented into long and short portions that enable the door frames and sidewalls to articulate. When collapsed, the long portions of the door frame posts lie folded at right angles to the short portions of the door frame posts and the long portions of the sidewalls lie folded at right angles to the short portions of the sidewalls.

A housing arrangement for floating on water is provided with a plurality of interconnected pontoonsThe pontoons have a polygon outline. A plurality of shipping containers are arranged on each of the pontoons. The shipping containers are habitable by providing at least one door and at least one window in the shipping containers and by insulating the walls of the shipping containers. A plurality of gangways interconnects the pontoons.

A vacuum system for use in excavation operations. The system uses a tank having an open end that is closed by a door. The door is opened and closed by a door lifting assembly made up of an upper linkage arm, a lower linkage arm and a hydraulic cylinder. A socket is formed in the upper linkage arm, and a shaft housing is formed in the lower linkage arm. The shaft housing engages with the socket to latch the door closed. The upper linkage arm is attached to the door at a first pivot axis and is attached to the lower linkage arm at a second pivot axis. The lower linkage arm is attached to a side of the tank at a third pivot axis. When the door is open, the second pivot axis extends below a reference plane that contains the first and third pivot axis.

An apparatus for sealing a vacuum tank door. The apparatus comprises a circular flange attached to a door panel of a vacuum tank, a horizontal crossbar connected to the center of the door panel and a lifting assembly. The lifting assembly comprises an upper linkage arm, a lower linkage arm, and a hydraulic cylinder. Activation of the hydraulic cylinder causes the linkage assembly to move downwards pulling on the horizontal crossbar and pulling the vacuum tank door towards the tank. Activation of the hydraulic cylinder also causes a connection point of the lower linkage arm and the upper linkage arm to move over-center of the connection between the lower linkage arm to the to the tank creating a tight seal between the vacuum tank door and the tank.

A temporary bulkhead locking member comprising a unitary length of rigid material that is formed into a predetermined profile extending longitudinally along the length thereof. The profile provides first and second channels into which the leading edges of first and second bulkhead doors may removably engage with the locking member located between the door leading edges. The bulkhead doors are oriented to form an obtuse angle with each other with the angle apex pointing inward of the container when in the engaged position with the locking member.

A transportable container assembly including a transportable container defining an enclosed interior space and having an opening member cooperatively engaging a mounting frame. The opening member has a closed position and an open position and access to the interior space is permitted in the open position. A localized device or system is attached to the transportable container and is coupled to an electrical power source. A reed switch apparatus coupled to the transportable container communicates the position of the opening member to the localized device or system. The localized device or system provides a localized function depending on the reported position of the opening member. The localized function includes at least one of a group consisting of a local lighting function, local locking mechanism action and local refrigeration system action/function. The localized device or system communicates the position of the opening member to a remote device or system at a location remote from the transportable container. The remote device or system is capable of providing remote monitoring and control functions or actions at the transportable container depending on the communicated position of the opening member.

An anti-reverse sealing lock includes a transparent housing having a passage with an opening in a top side of the transparent housing. A locking block is mounted in the passage and includes a locking ring and an anti-reverse member mounted in the passage. The locking ring includes a locking ring hole having an inclined groove receiving a C-shaped ring. The anti-reverse member includes a through-hole. A latch rod includes an insertion section having a first stepped groove and a second stepped groove. The latch rod extends through the opening, the locking ring hole, and the through-hole. The C-shaped ring is retained in the first stepped groove. A peripheral edge of the through-hole at an end of the anti-reverse member abuts against an end wall of the second stepped groove when the latch rod moves in a removal direction, preventing removal of the latch rod.

A container for holding product therein during shipment and being returned for reuse has guides containing generally L-shaped slotted tracks having horizontal and vertical portions. A plurality of dunnage supports extend between the tracks. Dunnage is suspended by the dunnage supports. The dunnage supports have narrowed portions engaged with the slotted tracks.

A shipping container includes walls, one or more doors, a locking device and a security device. At least one door is movable between an open position and a closed position. The locking device is configured to secure the at least one door in its closed positioned. The locking device defines an opening and includes a first fastener and a second fastener. At least one of the fasteners is attached to the door. The security device is insertable through the opening of the locking device. The security device includes a first wing substantially covering the first fastener and a second wing substantially covering the second fastener to substantially prevent access to the first fastener and the second fastener when the security device is inserted through the opening of the locking device. Other example shipping containers, security devices, etc. are also disclosed.

A foldable container adjustable between an unfolded condition and a folded condition comprises a roof panel and an opposing base panel, a front panel and an opposing door panel which are each hingedly connected to solely the roof panel, a right side panel and an opposing left side panel, a right side roof skirt and an opposing left side roof skirt, a left side compound beam and a right side compound beam extending from the base panel, and a left side hinge-beam structure and a right side hinge-beam structure each having a hinge point. The right side panel and the left side panel are hingedly coupled to their respective hinge-beam structures at the hinge points. The hinge points lie in different horizontal planes. The right side panel and the left side panel couple to their respective roof skirts at roof skirt interior points.