| 摘要 |
A seal (15) to be used between a pair of elements (11 and 12) capable of relative slidable movement with respect to each other. The seal (15) having the configuration of a helix having a length in excess of one revolution of the helix and being supported from one element (11) and slidably engaged with the other element. Means (17) being provided to cause compression of the seal axially and compression of the seal radially against the other element (12). |
