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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0837797 (1986-03-10) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 19 인용 특허 : 0 |
A combination vacuum cleaner and blower is described which is particularly adapted for use as an accessory to a fireplace. The apparatus of this invention is a portable hand-held vacuum/blower which is controlled by a reversible fan motor. When operating in a first direction, air is sucked into the
An apparatus adapted to alternately, but not concurrently, exhaust air and create a vacuum comprising: a front portion including an inlet leading into a vacuum chamber and an outlet extending from an exhaust chamber; said vacuum chamber including a valve adapted to permit air to flow into and not ou
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