Telescopic pole system
US4765277A · kind A · utility
Inventors
Key dates
| Filing date | Mar 5, 1987 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Mar 5, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H12/182
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A telescopic pole system for supporting a bird feeder, light system or the like comprises an elongated lower tubular pole component of circular cross-section, a ground sleeve for supporting the lower pole component, an upper tubular pole component of circular cross-section having an inner diameter greater than the outer diameter of the lower pole component, the lower pole component having an upper end of expanded cross-section for a snug, sliding fit within the upper pole component, and a collar secured to the lower end of the upper pole component having centering members for providing a snug, sliding fit over the lower pole component as the upper component is axially extended and retracted relative to the lower component, the collar having a pivotally-mounted retainer for locking the upper component on the lower component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.