Patent ID: 8537636

Claim:
A seismic cable for use on or close to a seabed comprising: a cable, and at least one sensor node connected to the cable and comprising: a cylindrical sensor unit including a sensor, at least one hydrophone, a pair of end sides, each including a flange, a pair of conical ring elements at opposite ends of the cylindrical sensor unit, each conical ring element having a first end abutting the flange of a respective end side and a second end arranged along a length of the cable, and a flexible protective socket arranged around the cylindrical sensor unit, the conical ring elements, and parts of the cable, the flexible protective socket comprising: a cylindrical central body connected at each end to a conical intermediate piece having a shape corresponding to a respective conical ring element, wherein each conical intermediate pieces is terminated in a flexible end part, wherein an inner surface of each end part forms a leak-tight connection around and along a length of an outer surface of the cable due to the flexibility of the end part.