| 摘要 |
The invention relates to a sealing means, articles incorporating the sealing means and apparatus in which said sealing means are used to advantage. The sealing means incorporates at least a first sealing element having at least an outer surface of polymeric material and a second sealing element having at least an outer surface of elastomeric material. This allows the sealing means to be baked for use in high vacuum or ultra high vacuum environments, without damage to the seal and in a closed position. Furthermore, the force required to be applied to create the seal between the sealing elements in such that automated actuation means can be used to operate the sealing means. |
