A blow-molded plastic structure, such as a table top, may include an undercut. For example, the table top may include a frame receiving portion and a frame connecting structure with an undercut may be disposed in the frame receiving portion. A first portion of the frame may contact or engage the frame connecting structure when the frame is connected to the table top. In an exemplary embodiment, a first side of the frame receiving portion may include a first frame connecting portion with an undercut and a second side of the frame receiving portion may include a second frame connecting portion with an undercut. The first frame connecting portion with an undercut may be disposed on an opposing surface from the second frame connecting portion with an undercut.

A plastic suction table board has a table top and a bottom board, wherein the edge of the table top is disposed with a side edge extending downwardly, and the edge of the bottom board is disposed with a hem extending upwardly, the hem is an arc structure protruding out of the plastic suction table board, the top end of the hem is disposed with a lip extending upwardly, the side edge covers the lip, the bottom end of the side edge is disposed above the hem. The edge of the bottom board is disposed with the hem of arc structure.

A foldable table and table legs comprises a tabletop comprising a plurality of tabletop sections each of which are interconnected by a hinge mechanism allowing the tabletop fold into a small, compact package. Detachable and foldable legs are configured for coupling to a table skirt comprising four segments which fold down from a storage pocket on the underside of the tabletop. The foldable legs interconnect with the table skirt once it is folded down from its storage position. The tabletop and foldable legs may all be folded into a compact, portable and packable configuration.

A flexible hinge created by a section of fabric material disposed between upper and lower retention pieces, for creating a hinge from a fabric member.

A T-link hinge for hingeably connecting first and second members comprises a link portion having a T-shaped cross-section including a top region and a bottom region, wherein the top region has a width greater than a width of the bottom region. The link portion comprises first and second thru holes formed in the bottom region of the link portion adjacent each the respective first and second ends of the link portion. Each of the first and second members to which the link portion is to be mounted includes thru holes. In an assembled configuration of the link portion and the first and second members, the thru holes formed on the first and second members axially align with the pair of thru holes in the link portion and are connected by first and second pins.

An inflatable sleeping pad or air mattress comprises an inflatable pad having a top layer and a bottom layer. At least one middle layer is disposed parallel to the top and bottom layers, and supported between the top layer and the bottom layer by a plurality of support baffles, wherein a first plurality of support baffles is disposed between the at least one middle layer and the top layer, and a second plurality of support baffles disposed between the at least middle one layer and the bottom layer. The sleeping pad further comprises an air inlet/outlet valve disposed on at least one of the inflatable pad top or bottom layers.

An inner support panel includes a first partial panel, a second partial panel, a first layer, a second layer a first panel portion, a second panel portion, a first layer, a second layer, and at least one support structure. The first layer is stacked on the second layer. The first partial panel includes one or two combinations consisting of at least part of the first layer and at least part of the second layer. The second partial panel includes one or two combinations consisting of at least the other part of the first layer and at least the other part of the second layer. The first partial panel and the second partial panel are connected to each other and form a hollow structure by defining a cavity. At least part of the second partial panel extends towards the cavity to form the support structure. The first partial panel can be supported by the support structure.

A two-piece table includes a one-piece tabletop portion and a one piece table leg portion. The tabletop portion is made of four or more distinct independent, hinged segments which allow the tabletop fold, origami style, into a small package. The tabletop further includes four corners having various chamfered ends or corners which allows for the creation of a handle in the longer ends or corners of the tabletop. The table leg portion is a foldable, unitary structure including four legs and a top portion on which the table top rests without any attachment. The top portion of the table leg portion fits into a slot or groove on the underside of the tabletop. The table leg portion is hinged and folds into a square.

A structure constructed using a blow-molding process comprising a tabletop, a lip, a pair of blow points, and a continuous tack-off. The tabletop includes an upper surface, a lower surface, and a hollow interior portion disposed between the upper and lower surfaces. The lip extends downwardly relative to the lower surface. The lip includes an outer and an inner surface. The blow points are configured to receive a blow pin. The blow points include a first portion connected to the lower surface, a second portion connected to the inner surface, and a hollow interior portion in fluid communication with the hollow interior portion. The continuous tack-off is disposed between the tabletop and the lip and extends between the blow points. The continuous tack-off prevents fluid flow between the tabletop and the lip along the section of the lip.

A foldable table and table legs comprises a tabletop comprising a plurality of tabletop sections each of which are interconnected by a hinge mechanism allowing the tabletop fold into a small, compact package. Detachable and foldable legs are configured for coupling to a table skirt comprising four segments which fold down from a storage pocket on the underside of the tabletop. The foldable legs interconnect with the table skirt once it is folded down from its storage position. The tabletop and foldable legs may all be folded into a compact, portable and packable configuration.