Collapsible anchor having releasable flukes
US4579077A · kind A · utility
Inventor
Key dates
| Filing date | Oct 12, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Oct 12, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B21/243
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A simple yet rugged and reliable collapsible anchor in an anchor assembly is disclosed for use with various small craft which are susceptible to damage by a conventional anchor stowed aboard or by the anchor being fouled when there is a swift current. The anchor is a stock anchor in which both the stock arms and the flukes are foldable alongside the anchor's hollow shank so as to be sheathed in a sheath from which the anchor is released when it is cast. A release mechanism is provided within the anchor's hollow shank which mechanism allows the anchor to be either self-tripped, or manually tripped, by exerting a pulling force of predetermined amount, which force required is adjustable; the mechanism obviates the use of shear pins. The anchor assembly is optionally protected by a cushioning means such as a resilient bumper or fender in which the sheathed anchor is removably inserted; or, a seat cushion in which the sheathed anchor is removably inserted, and thus may be stowed aboard the craft without occupying additional space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.