Umbrella locking sleeve
US4353659A · kind A · utility
23Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1981 |
| Grant date | Oct 12, 1982 |
| Priority date | — |
| Expiry date | Jul 20, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47B2220/0008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A locking sleeve for the post of a shade umbrella or the like comprises a tubular body adapted to be fitted into a hole in a table or other article of furniture and formed with a longitudinal slot allowing outward spreading of the body upon the tightening of a screw threaded therein against the post.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.