| 发明名称 | Cylinder vacuum cleaner | ||
| 摘要 | A cylinder vacuum cleaner comprising a main body which is fluidly connected to a suction hose used to pull the main body forwards along a floor, and a rear swivel castor for supporting the main body on the floor, the rear castor having a negatively-raked swivel axis which is offset from a wheel axis of the castor to provide a positive castor trail. | ||
| 申请公布号 | US9282865(B2) | 申请公布日期 | 2016.03.15 |
| 申请号 | US201213980822 | 申请日期 | 2012.01.16 |
| 申请人 | Dyson Technology Limited | 发明人 | Moloney Patrick Joseph William;Coulton Robert Mark Brett;Steele Stuart James;Brown Rodney James;Coleman James Martin |
| 分类号 | A47L9/00;A47L9/16;A47L5/36 | 主分类号 | A47L9/00 |
| 代理机构 | Morrison & Foerster LLP | 代理人 | Morrison & Foerster LLP |
| 主权项 | 1. A cylinder vacuum cleaner comprising a main body which is fluidly connected to a suction hose used to pull the main body forwards along a floor, a rear swivel castor for supporting the main body on the floor, the rear castor having a negatively-raked swivel axis which is offset from a wheel axis of the castor by a first rake angle to provide a positive castor trail, the rear swivel castor having swivel movement during operation of the vacuum cleaner, and a front castor with a further swivel axis which is offset from the wheel axis of the castor by a second rake angle different from the first rake angle of the negatively-raked swivel axis of the rear castor. | ||
| 地址 | Malmesbury, Wiltshire GB | ||