# US 4,392,957 A · Anti-pollution equipment

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- Number: US 4,392,957 A
- Document ID: US4392957A
- Status: Granted
- Kind: A
- Application number: 06/281,932
- Filed: 1981-07-10
- Granted: 1983-07-12
- Earliest claimed: 1979-03-06
- Assignees: Vikoma International Limited
- Inventors: Michael G. Webb
- Web page: https://patentgrep.com/patent/US4392957A

## CPC

- E02B 15/06: Barriers therefor (E02B15/08 takes precedence){construed for applying processing agents or for collecting pollutants, e.g. absorbent}
- E02B 15/10: Devices for removing the material from the surface {(E02B15/041, E02B15/042, E02B15/06 take precedence)}
- Y02A 20/204: Keeping clear the surface of open water from oil spills
- Y10S 210/923: using mechanical means, e.g. skimmers, pump
- E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A device suitable for recovering viscous material derived from petroleum, comprises a plurality of pairs of blades (1 and 2, 3 and 4, 5 and 6) each blade (1, 2, 3, 4, 5, 6) being pivotally mounted at either end, and the pivots on at least one end being connected to an actuating rod or rods, (11, 12, 13, 14). The blades and rods are arranged so that in a first position the pairs of blades are vertical, in a second position they form V-shaped containers (21, 23, 25) and in a third position the blades are again in pairs, which are either the same or different pairs from the original position.

## Claims

### Claim 1

A device suitable for recovering viscous material derived from petroleum comprises a plurality of pairs of blades, each blade being pivotally mounted at either end, and the pivots on at least one end being connected to an actuating rod or rods, so that the position of the pivots can be moved substantially at right angles to the width of the blades, the blades and rods being arranged to operate in such a manner that in a first position, the pairs of blades are in a vertical position, adjacent to one another but remote from other pairs, in a second position the blades form a series of V-shaped containers and in a third position the blades are again in vertical pairs, either in the same or in different pairs from the original position.

### Claim 2 (depends on 1)

A device as claimed in claim 1 in which the upper end of each pair of blades is pivotally connected to a first actuating rod, the upper end of the second member of each pair is pivotally connected to a second actuating rod, the lower end of each blade connected to the first actuating rod is pivotally connected to a third actuating rod and the lower end of each blade connected to the second actuating rod is pivotally connected to a fourth actuating rod.

### Claim 3 (depends on 1)

A device as claimed in claim 1 in which each blade, is mounted between two pairs of actuating rods, the upper end of one member of each pair of blades is pivotally connected at either side of the blade to one of a first pair of actuating rods, the upper end of the second member of each pair of blades is pivotally connected at either side of the blade to one of a second pair of actuating rods, the lower end of each of the blades connected to the first pair of actuating rods is pivotally connected at either side of the blade to one of a third pair of actuating rods and the lower end of each of the blades connected to the second pair of actuating rods is pivotally connected at either side of the blade to one of a fourth pair of actuating rods.

### Claim 4 (depends on 1)

A device as claimed in claim 1 in which the upper edges of all the blades are pivotally connected to a single immovable rod.