Extendable stick
US6273112A · kind A · utility
9Cited by
9References
16Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Mar 21, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Mar 21, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32501
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An extendable stick having an outer pipe, an inner pipe, a core bar fixed on the outer pipe, a zigzag chain having a first portion and a second portion, an unlocking pipe, an unlocking member attached to one end of the unlocking pipe, an unlocking pin, and an unlocking finger grip attached to the unlocking pipe through a hole in the inner pipe by means of the unlocking pin, wherein the first portion being fixed to the inner pipe, the core bar running through the zigzag chain. The stick can optionally have a pedal and/or a spring to provide force to stretch the zigzag chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.