A blow-molded unitary structure includes a panel having first and second panel walls and a generally hollow interior between the first and second panel walls. The structure also includes one or more different types of strengthening elements monolithically formed with the panel and across a substantial portion of the panel to enhance the strength of the structure. A strengthening element can be a depression recessing from the second panel wall toward an interior of the panel, a protrusion protruding from the second panel wall toward an exterior of the panel, a rib protruding outwardly toward the exterior of the panel and a trench formed by side walls of adjacent protrusions.

A hollow fusion panel and usage. The hollow fusion panel comprises a first layer, a second layer, a first partial panel and a second partial panel; the first partial panel and the second partial panel form an integrally formed structure in an enclosed manner, the first layer overlaps with at least part of the second layer, multiple portions of the second partial panel are all recessed towards a direction of the first partial panel to form a predetermined number of support structures which are a distributed in a preset manner, each of the support structures forms a recessed cavity, the support structures and at least part of the first partial panel are fused and the occupied area of the first partial panel fused by a single support structure is s, and the thickness of the portion where the first partial panel is provided opposite the second partial panel is t, s/t2 being greater than 01.

A hollow fusion panel and usage. The hollow fusion panel comprises a first layer, a second layer, a first partial panel and a second partial panel; the first partial panel and the second partial panel form an integrally formed structure in an enclosed manner, the first layer overlaps with at least part of the second layer, multiple portions of the second partial panel are all recessed towards a direction of the first partial panel to form a predetermined number of support structures which are a distributed in a preset manner, each of the support structures forms a recessed cavity, the support structures and at least part of the first partial panel are fused and the occupied area of the first partial panel fused by a single support structure is s, and the thickness of the portion where the first partial panel is provided opposite the second partial panel is t, s/t2 being greater than 01.

A tool for supporting tiles on a wall being applied to the wall while drying between two countertops. The tile support device includes an elongated body and two longer side pieces that can balance on each countertop. The tile support device includes a ledge or ridge that couples to an angled surface or sloped surface. The tile support device can be positioned beneath a last level or row of drying tiles without having to fasten the tool to a wall surface or other surface therefore preventing damage to the wall surface or other surface from fasteners. The tile support device can be easily positioned and removed from beneath the last level or row of drying tiles that are drying on the wall.

A tool for supporting tiles on a wall being applied to the wall while drying between two countertops. The tile support device includes an elongated body and two longer side pieces that can balance on each countertop. The tile support device includes a ledge or ridge that couples to an angled surface or sloped surface. The tile support device can be positioned beneath a last level or row of drying tiles without having to fasten the tool to a wall surface or other surface therefore preventing damage to the wall surface or other surface from fasteners. The tile support device can be easily positioned and removed from beneath the last level or row of drying tiles that are drying on the wall.

In a virtual sound image control system according to the present invention, a signal processor generates the acoustic signal and outputs the acoustic signal to the two-channel loudspeakers so as to create a virtual sound image to be perceived by a user as a stereophonic sound image. The two-channel loudspeakers are arranged such that a first listening area and a second listening area for the user are symmetric to each other with respect to a virtual plane including a virtual line segment connecting the two-channel loudspeakers together.

A heat resistant countertop or a heat resistant three dimensional shape product comprising a composition comprising at least one aggregate, at least one cement, at least one fine material, at least one dispersant, and at least one viscosity modifier, and optionally at least one set retarder, and optionally at least one set accelerator. A heat resistant countertop or a heat resistant three dimensional shape product comprising a calcium aluminate cement hydraulic binder and matrix is provided.

A hollow fusion panel and usage. The hollow fusion panel comprises a first layer, a second layer, a first partial panel and a second partial panel; the first partial panel and the second partial panel form an integrally formed structure in an enclosed manner, the first layer overlaps with at least part of the second layer, multiple portions of the second partial panel arc all recessed towards a direction of the first partial panel to form a predetermined number of support structures which arc a distributed in a preset manner, each of the support structures forms a recessed cavity, the support structures and at least part of the first partial panel are fused and the occupied area of the first partial panel fused by a single support structure is s, and the thickness of the portion where the first A hollow fusion panel and application thereof is disclosed, wherein the hollow fusion panel includes a first layer, a second layer, a first panel member and a second panel member, wherein the first panel member and the second panel member are constructed to form a hollow integral structure. The first layer and the second layer are at least partially overlapped and composited such that a plurality portions of the second panel member are recessed in a direction toward the first panel member to form a predetermined number of supporting structures distributed in a predetermined manner, wherein each of the supporting structures forms a recessed cavity therein and is at least partially fused with the first panel member in such a manner that an area of the first panel member being fused and occupied by the corresponding supporting structure is s, and a thickness of a position where the first panel member fused with the second panel member is t, where s/t.sup.2 is greater than 0.1.

A hollow fusion panel and usage. The hollow fusion panel comprises a first layer, a second layer, a first partial panel and a second partial panel; the first partial panel and the second partial panel form an integrally formed structure in an enclosed manner, the first layer overlaps with at least part of the second layer, multiple portions of the second partial panel arc all recessed towards a direction of the first partial panel to form a predetermined number of support structures which arc a distributed in a preset manner, each of the support structures forms a recessed cavity, the support structures and at least part of the first partial panel are fused and the occupied area of the first partial panel fused by a single support structure is s, and the thickness of the portion where the first A hollow fusion panel and application thereof is disclosed, wherein the hollow fusion panel includes a first layer, a second layer, a first panel member and a second panel member, wherein the first panel member and the second panel member are constructed to form a hollow integral structure. The first layer and the second layer are at least partially overlapped and composited such that a plurality portions of the second panel member are recessed in a direction toward the first panel member to form a predetermined number of supporting structures distributed in a predetermined manner, wherein each of the supporting structures forms a recessed cavity therein and is at least partially fused with the first panel member in such a manner that an area of the first panel member being fused and occupied by the corresponding supporting structure is s, and a thickness of a position where the first panel member fused with the second panel member is t, where s/t.sup.2 is greater than 0.1.

A laundry appliance includes a cabinet including a top edge. A structural panel is attached to the top edge of the cabinet. An adapter panel is attached to the structural panel. The adapter panel extends over at least a portion of an upper surface of the structural panel. A decorative panel is removably coupled to the adapter panel. The decorative panel is disposed over a top surface of the adapter panel. The decorative panel is free of attachment with the cabinet.