Plank structure for boat dock and the like
US5009045A · kind A · utility
49Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1989 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Oct 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A10/11
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plastic plank member, for use with a deck arrangement, having a rigid base portion and a tread portion attached thereto which are integrally extruded of suitable plastics. The rigid portion of the plank member is adapted to be secured to an underlying support structure. The tread portion is formed with protrusions projecting upwardly away from the tread and grooves formed therein. The characteristics of the tread result in a sufficiently high coefficient of friction to reduce the possibility of slipping on the plank member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.