| 发明名称 | Airflow indicator assembly and method for vacuum cleaner | ||
| 摘要 | A vacuum cleaner having an airflow outlet and an airflow indicator assembly removably disposed at the outlet. The airflow indicator assembly includes a pair of fins attached to a spine and a needle disposed between the pair of fins. During operation of the vacuum cleaner, exhaust air is directed through the outlet and towards the needle, pushing the needle thereby indicating whether service is needed. | ||
| 申请公布号 | US9532689(B2) | 申请公布日期 | 2017.01.03 |
| 申请号 | US201414253238 | 申请日期 | 2014.04.15 |
| 申请人 | SHOP VAC CORPORATION | 发明人 | Westbrook Kurt;Bartley Seth A.;Fry Kevin D. |
| 分类号 | A47L9/19 | 主分类号 | A47L9/19 |
| 代理机构 | Marshall, Gerstein & Borun LLP | 代理人 | Marshall, Gerstein & Borun LLP |
| 主权项 | 1. A vacuum cleaner comprising: an airflow outlet; an airflow indicator assembly removably disposed at the outlet and including a pair of fins attached to a spine, and a needle disposed between the pair of fins; wherein, during operation of the vacuum cleaner, exhaust air is directed through the airflow outlet towards the needle, pushing the needle thereby indicating whether service is needed. | ||
| 地址 | Williamsport PA US | ||