Patent ID: 9163765
Filing Date: 2015-10-20
Classification: B63B,B67D,E21B,F16L

Abstract:
1. A coupling device comprising: a first coupling housing comprising: a second coupling housing comprising: wherein the first coupling housing further comprises a non-fluid communicating guiding element extending from the first coupling housing and having a free end at a distance (h) from a first coupling housing central axis (a-a), at least a portion of the guiding element having a non-circular cross-section, and wherein the second coupling housing further comprises a non-fluid communicating receptacle for the guiding element and pull-in means for pulling the guiding element into the receptacle, said pull-in means being connected to the guiding element free end, at least a portion of the receptacle having a non-circular cross-section of a shape which is complementary with the guiding element non-circular portion, such that the movement of the first coupling housing towards the receptacle is at an angle which is not coincident with the central axis (a-a), and when the guiding element is in place inside the receptacle, the first coupling housing central axis (a-a) and a central axis (b-b) of the second coupling housing are aligned and coincident, and the two housings are rotationally aligned.