Mat for removing dirts or dusts
AssigneeShinon Denkisangyo Kabushiki-Kaisha
InventorsHisashi Nemoto, Kiyoyuki Takesako
Life of this patent
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Abstract
A mat for removing dirts or dusts comprises a cushioning material made of a plurality of curled elastomeric filaments and a collector sheet of electret laying under the cushioning material. The filaments are formed of a compound of synthetic resinous material and a powdered electrical conductive material, and entangled with each other to provide a plurality of through holes or voids extending vertically through the cushioning material.
Claims8
A mat for removing dirt from footgear soles or dust comprising:
- a cushioning material made of a plurality of elastomeric filaments comprising a mixture of synthetic resinous material and a powdered electrically conductive material, said filaments entangled with each other to provide a plurality of through holes or voids extending vertically therethrough from a top surface to a bottom surface thereof, and
- a collector sheet of electret laying under the cushioning material.
A mat for removing dirt from footgear soles or dust comprising:
- a cushioning material made of a plurality of elastomeric filaments comprising a mixture of vinyl chloride and a powdered carbon, said filaments being entangled with each other to provide a plurality of through holes or voids extending vertically through said cushioning material from a top surface thereof to a bottom surface thereof, and
- a collector sheet of electret laying under the cushioning material, wherein said sheet comprises an electrostatically chargeable upper sheet and a lower sheet of synthetic resin bonded to the upper sheet.
A mat for removing dirt or dust comprising:
- a cushioning material made of a plurality of elastomeric filaments comprising a mixture of synthetic resinous material and a powdered electrically conductive material, said filaments being entangled with each other to provide a plurality of through holes or voids extending vertically through said cushioning material from a top surface thereof to a bottom surface thereof, and
- a collector sheet of electret laying under the cushioning material, said collector sheet being disposed on a base of a material having flexibility and surface frictional resistance sufficiently high to prevent a slip on a floor.
Dependencies are inferred from the claim text.