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:
Nov. 17, 1998
Filed:
Sep. 10, 1996
Chieh-Chun Wang, Taichung, TW;
Chia-Ming Lin, Taichung, TW;
Kinergy Industrial Co., Ltd., Taichung, TW;
Abstract
A telescopic extension wand of a vacuum cleaner includes an inclined tab provided at the inner wall of a sleeve for biasing a retaining plate having retaining teeth underside to engage with a plurality of retaining teeth of a middle tube or an inner tube so the middle or inner tube can be relatively positioned. A projected boss provided at the inner wall of the sleeve can be guided by a guiding slot disposed at an outer wall of the external tube or middle tube. When the sleeve is rotated to a preset position, the inclined tab as well as the retaining plate can be controlled to engage or disengage the middle tube or inner tube with/without engagement between the retaining teeth therebetween. By this arrangement the middle tube and inner tube can be repositioned.