The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 1991
Filed:
May. 17, 1990
Shuji Yamazumi, Youkaichi, JP;
Hiroshi Kawakami, Youkaichi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A suction pipe for a vacuum cleaner is disclosed. The suction pipe comprises a hollow cylindrical body which is provided with sound-absorbing holes on a ceiling portion thereof, the ceiling portion extending in the air-inducing direction. A cover is attached to the outer surface of the cylindrical body so as to cover the ceiling portion thereof. A sound-absorbing material is placed between the ceiling portion and the cover, so that noise caused by the air sucked into the suction pipe is directed through the sound-absorbing holes of the ceiling portion and absorbed by the sound-absorbing material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile