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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0860267 (1977-12-13) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 27 인용 특허 : 1 |
The preparation of beehives from a synthetic resinous material which is acceptable to the bees, which is not attacked by vermin, and which exhibits the requisite physical properties to provide a desirable beehive is accomplished by assembling the hives from molded urethane foam panels, the urethane
A beehive constructed of panels molded with wall thicknesses of between about one-half inch and two inches, of closed cell polyurethane foam having a density of between 4 and 50 pounds per cubic foot, namely: a molded bottom, a molded cover and molded wall panels, and means for securing said panels
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