Static structures (e.g. – buildings) – Animal blocking lateral projection – trap – or scarer
Reexamination Certificate
1998-12-16
2001-07-10
Chilcot, Richard (Department: 3635)
Static structures (e.g., buildings)
Animal blocking lateral projection, trap, or scarer
C047S050000, C047S050000, C047S050000
Reexamination Certificate
active
06256937
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates generally to resisting attack of cellulose materials by termites. More particularly, the present invention relates to a method of constructing a wall such as a continuous footing for constructing a building thereon or a concrete wall for a reinforced concrete building. The present invention is also directed to a composite panel useful as a building material and to a modular wall form structure.
Because of good heat insulation properties, polystyrene foam and polyolefin foam have been utilized as foundation insulation. However, such a plastic foam gives rise to a problem of damage of wooden pillars and walls by termites, since the plastic foam provides ideal nesting and tunneling conditions for termites and permits undetected access to wood materials of buildings.
While termite damage may be reduced by incorporating a termiticide in the foam, the termiticide adversely affects the human body. The use of termiticides also causes a difficulty in reuse of the foam.
SUMMARY OF THE INVENTION
It is, therefore, an object of the present invention to provide a method of preventing damage of wooden construction materials of a building by termites.
Another object of the present invention is to provide a method of constructing a wall extending from the ground.
It is a further object of the present invention to provide a continuous footing or a concrete wall.
It is a yet a further object of the present invention to provide a composite panel which is useful as a building material and which has resistance to termite damage.
It is a further object of the present invention to provide a modular concrete form structure for forming a rigid concrete wall.
To accomplish the foregoing objects, there is provided in accordance with one aspect of the present invention a method of preventing damage of a construction material of a building by termites, comprising laying one or more panels, each having a polycarbonate foam layer, on the ground below said building.
In another aspect, the present invention provides a method of constructing a wall, comprising the steps of:
providing a pair of opposing molds having generally vertical inside surfaces between which a space is defined, at least a portion of said molds including one or more panels each having a polycarbonate foam layer,
filling said space with concrete, and
setting said concrete to form said wall with said panels constituting at least part of said wall.
The present invention also provides a wall structure for a building, comprising a vertical concrete wall upwardly extending from the surface of the ground, and one or more panels each having a polycarbonate foam layer and attached to at least part of said wall.
The present invention further provides a composite panel comprising a first, polycarbonate resin foam layer and a second layer laminated on at least one side of said polycarbonate resin foam layer and formed of a material other than a polycarbonate resin, said polycarbonate resin foam layer having an average cell wall thickness of at least 5 &mgr;m, an apparent density of 30-600 kg/m
3
and a thickness of at least 2 mm.
The present invention further provides a modular concrete form structure comprising a pair of opposing side panels defining therebetween a gap adapted to be filled with concrete and each having a polycarbonate foam layer.
REFERENCES:
patent: 5097641 (1992-03-01), Hand et al.
patent: 5623793 (1997-04-01), Kyomen et al.
patent: 5706620 (1998-01-01), De Zen
patent: 5735090 (1998-04-01), Papke
patent: 5854294 (1998-12-01), Hirosawa et al.
Gokuraku Hiroyuki
Kitahama Takashi
Kogure Naochika
Nanama Kiyotaka
Chilcot Richard
JSP Corporation
Lorusso & Loud
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