Locking mechanism for telescopically adjustable extension pole
US6461074B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7079
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A locking mechanism for a telescopically adjustable extension pole is disclosed. The locking mechanism includes a collar member and a locking trigger mechanism preferably comprising a bottom trigger member and a top trigger member having a locking pin therein. The top trigger member grippingly engages the collar member which is attached to the outer sleeve of the pole. By depressing the bottom trigger member, the top trigger member moves laterally outwardly retracting the locking pin from an aperture in the inner sleeve permitting the length of the extension pole to be telescopically adjusted. By releasing the bottom trigger member, the top trigger member moves laterally inwardly causing the locking pin to be received within an aperture in the inner sleeve so as to interlock the inner sleeve within the outer sleeve at the approximate desired length of the extension pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.