Cleat
US4553495A · kind A · utility
7Cited by
5References
9Claims
0Family size
Inventor
Key dates
| Filing date | Sep 13, 1983 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Sep 13, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/3918
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cleat is formed by a base plate and two dome-shaped, high friction surfaces, which secure a line or rope therebetween. In one preferred embodiment spiralling grooves form the high friction surfaces with the grooves following symmetrical opposing spirals on the two surfaces to permit easy insertion while also providing strong gripping action even against tension in the line. In another embodiment three dome-shaped elements are secured to a base plate with alternating spiralled-groove patterns to provide a convenient two line cleat which is useful, for example, in securing both lines from a jib when sailing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.