发明名称 Chimney cap
摘要 In a chimney cap for providing coverage for the upper end of a chimney flue, the cap includes a cover, a band arranged there below, sufficient space in between the cover and the band to allow the development of a draft for removal of smoke and fumes, a foraminous screen arranged structurally between the cover and band, and retentioners, in the category of resiliently biasing appendages, removably connecting with the band and for use for tightening of the cap within and to the chimney flue.
申请公布号 US4535686(A) 申请公布日期 1985.08.20
申请号 US19840588746 申请日期 1984.03.12
申请人 HY-C COMPANY, INC. 发明人 HISEY, DURWARD A.
分类号 F23J13/08;(IPC1-7):F23L17/02 主分类号 F23J13/08
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