| 发明名称 | Dual purpose dimple for HVAC circular ductwork | ||
| 摘要 | Sealing HVAC ductwork along its joints to reduce air leakage is achieved by the combination of a gasket and mechanical locking mechanisms. | ||
| 申请公布号 | US8973954(B2) | 申请公布日期 | 2015.03.10 |
| 申请号 | US201313855223 | 申请日期 | 2013.04.02 |
| 申请人 | Ductmate Industries, Inc. | 发明人 | Coughenour Alvin;Bloom Vincent L.;Fetko Duane |
| 分类号 | F16L9/02;F16L25/00;F24F13/02;F16L21/08 | 主分类号 | F16L9/02 |
| 代理机构 | Beck & Thomas, P.C. | 代理人 | Beck & Thomas, P.C. |
| 主权项 | 1. A circular sheet metal duct comprising: (a) sheet metal formed into the shape of the circular duct having a female end, a male end, and a longitudinal snap locking mechanism to join the ends of the sheet metal to form the circular duct; (b) locks formed into the longitudinal snap locking mechanism, the locks having a frequency of greater than two inches; and (c) a notch formed at the female end of the circular duct by eliminating a portion of the longitudinal snap locking mechanism extending from the female end inwardly to a depth that the male end enters the female end. | ||
| 地址 | East Monongahela PA US | ||