Deep water lift system remote pendant
US7484467B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2005 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | May 21, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C7/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control pendant for raising and lowering an object in water by hoist machinery allows control by a diver viewing the submerged object. The pendant has an elongate sheath defining an elongate interior extending between bitter and distal ends. The bitter end is coupled to the hoist machinery and the sheath has a length to extend below to the object. Control lines extend within the length of the elongate sheath and a first end of each control line is connected to the hoist machinery. The remainder of the sheath is filled with filler material. A watertight control housing is connected to the sheath at the distal end and contains a pair of switches that are each connected to a separate one of second ends of the lines. Sealed control buttons extend from the switches for selectively raising and lowering of said object by a percipient diver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.