Disclosed is a perforated wall system, having a perforated wall which includes a front side and a rear side and multiple openings in the perforated wall and at least one fastening element for fastening to the perforated wall. The fastening element includes an element body and a locking element provided on the element body for the releasable connection of the fastening element to the perforated wall at an opening in the perforated wall. The locking element projects through the opening in the perforated wall for the fastening of the fastening element.

A self-sealing fastener for reducing leaks between the self-sealing fastener and a substrate. The self-sealing fastener includes a shank that extends longitudinally between a first end and a second end. The shank has an outer surface. The self-sealing fastener also includes a head that extends radially outwardly from the first end of the shank. The head has an underside surface that is adjacent to the first end of the shank and a topside surface opposite the underside surface. A mastic sealant is disposed on at least one of the outer surface of the shank and the underside surface of the head to provide a water-tight seal between the self-sealing fastener and the substrate after the self-sealing fastener is installed in the substrate.

A backsaving device having a main body sized and shaped to corresponding to the height of an under-sink cabinet, such that when the backsaving device is disposed adjacent the under-sink cabinet, a top surface of said main body is generally coplanar with a bottom interior of said under-sink cabinet. This allows a worker working under the sink to lay back on the device comfortably without the edge of the cabinet digging into the back or shoulders. A rotatably flip may be used to bridge the gap between the device and sink to prevent pinching.

A backsaving device having a main body sized and shaped to corresponding to the height of an under-sink cabinet, such that when the backsaving device is disposed adjacent the under-sink cabinet, a top surface of said main body is generally coplanar with a bottom interior of said under-sink cabinet. This allows a worker working under the sink to lay back on the device comfortably without the edge of the cabinet digging into the back or shoulders. A rotatably flip may be used to bridge the gap between the device and sink to prevent pinching.

A fastener assembly for a motor vehicle is provided. The fastener assembly comprises a fastener configured to couple a first component to a second component of the motor vehicle, the fastener comprising a shank configured to be received within a bore of the first component; and a retaining member, the retaining member being couplable to the fastener and the first component, the retaining member comprising an opening configured to receive the fastener shank and to provide a resistance against the removal of the fastener shank from the bore of the first component, wherein the retaining member comprises a deformable portion configured to deform from a first state to a second state by virtue of the operating environment of the first component such that the fastener may be removed from the bore when the deformable portion is in the second state following operation of the motor vehicle.

A block assembly for locking a toothed gear housed in a frame includes a body shaped to couple to a portion of the frame adjacent to the gear for translation in a first direction parallel to an axis of the gear, and a locking block coupled to the body that includes at least one locking tooth shaped complementary to at least one gear tooth of the gear. The block assembly further includes an adjustment mechanism operable, when the body is coupled to the frame, to move the locking block in a second direction that is substantially orthogonal the axis of the gear, such that at least one locking tooth is received between a circumferentially spaced pair of the gear teeth to prevent movement of the toothed gear.

A block assembly for locking a toothed gear housed in a frame includes a body shaped to couple to a portion of the frame adjacent to the gear for translation in a first direction parallel to an axis of the gear, and a locking block coupled to the body that includes at least one locking tooth shaped complementary to at least one gear tooth of the gear. The block assembly further includes an adjustment mechanism operable, when the body is coupled to the frame, to move the locking block in a second direction that is substantially orthogonal the axis of the gear, such that at least one locking tooth is received between a circumferentially spaced pair of the gear teeth to prevent movement of the toothed gear.

A structural component includes at least one wall surrounding a component interior space. The structural component also includes a first cellular structure positioned within the component interior space. The first cellular structure includes a plurality of cells each having a twelve-cornered cross section including twelve sides and twelve corners creating nine internal angles and three external angles.

A structural component includes at least one wall surrounding a component interior space. The structural component also includes a first cellular structure positioned within the component interior space. The first cellular structure includes a plurality of cells each having a twelve-cornered cross section including twelve sides and twelve corners creating nine internal angles and three external angles.

A disconnect assembly for disconnecting a payload from a delivery platform includes a disconnect device for providing a releasable connection between the payload and the delivery platform. The disconnect assembly also includes an actuation mechanism for actuating release of the releasable connection, and a trigger mechanism for triggering the actuation mechanism to release the releasable connection. The trigger mechanism is automated such that the trigger mechanism can trigger the actuation mechanism without requiring operator intervention at the trigger mechanism. Also provided is a kit of parts, a delivery apparatus and a method of disconnecting a payload from a delivery platform.