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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0095021 (1993-07-22) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 33 인용 특허 : 0 |
A roof drain for draining rainwater from a roof. A bell-like strainer is supported by a compression/tension unit including resilient means, which unit is in turn mounted to a drainage sleeve that communicates with a leader. The strainer is secured to the drainage sleeve by a threaded bolt that passe
A roof drain for use with a leader, comprising: a strainer; a drainage sleeve; fastening means for securing the strainer to the drainage sleeve so that water can drain through the strainer and the drainage sleeve into the leader; and a compression/tension unit including resilient means for providing
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