Portable beach umbrella safety base
US4753411A · kind A · utility
55Cited by
9References
8Claims
0Family size
Inventors
Key dates
| Filing date | Aug 19, 1987 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Aug 19, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S248/91
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A base for securement of a beach umbrella includes a collar which is inserted over the staff of a beach umbrella and has four pivotable struts which open into a position in which they extend perpendicular to the staff of the umbrella. Two semicircular plates are received by the support struts and in use are covered with sand to provide a secure mounting for the ground inserted staff of the umbrella.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.