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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0625696 (1984-06-28) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 24 인용 특허 : 5 |
A device for melting snow and ice from outdoor surfaces is disclosed in which a plurality of mats are provided. Each mat includes lengths of hose tubing in which flows a warmed mixture of water and antifreeze, which mixture is heated by a heating unit operatively connected with the mats through appr
A device for melting snow and ice on outdoor surfaces such as driveways, sidewalks, and walkways, comprising: a first mat defining an interior chamber, said mat being substantially closed off about the circumference thereof, and comprising a plurality of concentrically-arranged tubes spaced apart in
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