Patent ID: 7316430
Filing Date: 2008-01-08
Classification: E21B,Y10S

Abstract:
1. Connecting mechanism comprising: one part and another part, the another part being at least partially insertable into the one part, the one part having a cam-operated component which runs on bearings on the one part and is adjustable between a passive and an active position for shifting a first and a second plurality of contact elements between a withdrawal and a contact position, the first plurality of contact elements being separate from the second plurality of contact elements; the first and second plurality of contact elements, when in the contact position, meshing in first and second retaining indentations on the another part; a driving device to adjust the cam-operated component between the active and passive position; the first plurality of contact elements being located at one level in the one part and the second plurality of contact elements being located at a second level in the one part, the contact elements being essentially parallel to the insertion direction of the two parts; and the cam-operated component shifting the contact elements between the withdrawal and contact positions located at each level.