Stepless expandable rod
US5909760A · kind A · utility
Inventor
Key dates
| Filing date | May 13, 1998 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | May 13, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45C13/262
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A stepless expandable rod is composed of an outer tube provided therein with an insertion slot and a tube compartment, an insertion strip located in the insertion slot and provided with a plurality of retaining holes, an inner tube expandable received in the tube compartment of said outer tube, a connection rod received in the inner tube and capable of an axial displacement, and a retaining member located at the bottom end of the inner tube and provided with a retaining projection capable of being actuated by the connection rod to extract to engage one of the retaining holes of the insertion strip so as to retain the bottom end of the inner tube at a position in the outer tube at the time when the inner tube is extracted from the top end of the outer tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.