Static structures (e.g. – buildings) – With synthetic resinous component – Foam
Reexamination Certificate
1999-09-02
2001-06-19
Lev, Bruce A. (Department: 3634)
Static structures (e.g., buildings)
With synthetic resinous component
Foam
C052S792100, C052S794100, C052S592400
Reexamination Certificate
active
06247281
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a wall plank structure, the thickness of which can be adjusted according to actual requirement. The wall plank structure can be continuously mass-produced.
A conventional wall plank used in an iron sheet house, factory or warehouse is generally formed by an upper panel, a lower panel and a PU foam layer sandwiched thererbetween. In order to avoid spilling of the PU foam agent during the foaming procedure, two sides of the upper panel or lower panel are formed with perpendicularly extending left and right walls. In addition, in order to easily connect the wall planks with each other, the left and right side walls are formed with projections and recesses for inserting with each other.
According to the above structure, the wall plank is manufactured to have unified size and thickness so as to quickly mass-produce the wall plank by a machine. However, in working site, the limitation of the fixed size and thickness often causes trouble and inconvenience in working and leads to low working efficiency. Also, in the case that the wall plank is directly modified in the working site, the progress of the working will be affected.
Furthermore, in the conventional wall plank, the lateral walls (lateral connecting sections) are improperly designed so that when interconnected, a great gap often exists between the wall planks and water may leak through the gap. Moreover, The conventional wall plank is manufactured with unified size and thickness. When co-used and assembled with a C-shaped or H-shaped steel beam, it is often that the dimension of the wall plank cannot meet the dimension of the beam and the assembly is too loose or even it is impossible to assemble the wall plank with the beam.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a wall plank structure in which the opposite left and right side walls of the upper and lower panels are disposed with adjoining layers formed of films, whereby in manufacturing procedure of the wall plank, the distance between the upper and lower panels can be adjusted as necessary so as to obtain various thickness of the wall plank.
It is a further object of the present invention to provide the above wall plank in which the left and right side walls of the upper and lower panels are respectively formed with a projection and a recess in the same direction for inserting with each other. The dimension of the recess of the side wall is slightly larger than the dimension of the projection of the side wall and a resilient pad member is disposed in the recess to reduce the possibility of leakage of water.
According to the above objects, the wall plank structure of the present invention is composed of an upper panel, a lower panel and an interconnecting layer made of PU foaming agent. The surfaces of the upper and lower panels are formed with channels. Two lateral sides of the upper and lower panels are formed with left and right side walls which are continuously bent and formed with a projection and a recess in the same direction for inserting with a mating recess and projection, respectively, of an adjacent panel. The inner sides of the opposite left and right side walls of the upper and lower panels are disposed with adjoining layers for adjusting the distance between the upper and lower panels in manufacturing procedure so as to obtain various thickness of the wall plank and achieve versatile application of the wall plank.
The present invention can be best understood through the following description and accompanying drawings wherein:
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Bacon & Thomas
Lev Bruce A.
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