Ullage tape winder
US4451986A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1981 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Dec 21, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/0023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ullage gauge for directly and accurately measuring the ullage of a cargo tank of a vessel such as an oil tanker without the necessity of opening the hatch. The gauge is comprised of a calibrated ullage tape which is supplied from a winder reel positioned within a sealed chamber atop the deck of the tanker and communicating with the cargo tank, the winder reel being rotated by a winder reel handle placed exterior of said sealed chamber. The sealed chamber includes a view window which allows direct observation of the calibrated surface of the ullage tape as well as direct observation of the rising cargo within the cargo tank. A float attached to the ullage tape is of sufficient size and weight that once contact of the float with the surface of the cargo is made, such contact is felt by the operator through the winder reel handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.