发明授权
- 专利标题： Vacuum cleaner with height adjustment
- 专利标题（中）： 具有高度调节功能的真空清洁器
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申请号： US30700172申请日： 1972-11-16
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公开(公告)号： US3822436A公开(公告)日： 1974-07-09
- 发明人: BURGOON J
- 申请人： SCOTT & FETZER CO
- 专利权人： Scott Fetzer Co
- 当前专利权人： Scott Fetzer Co
- 优先权： US30700172 1972-11-16
- 主分类号： A47L5/34
- IPC分类号： A47L5/34
摘要：
A large vacuum cleaner with height adjustment mechanism for the vacuum nozzle is provided. The adjustment mechanism includes two foot-operated levers, one effective to change the height of the nozzle in a direction away from the surface to be cleaned, and one to change the height of the nozzle in a direction toward the surface by releasing the first lever from a predetermined position. The mechanism is easily operated from the rear by an operator manipulating the vacuum cleaner by its handle. The mechanism is also simple, maintenance free, reliable, and inexpensive.
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