| 摘要 |
<p>A pressure seal used for containing helium within a cryogenic refrigerator, which utilizes a linear drive assembly (5). A deformable gasket (30) is used to seal the enclosing elements of the linear drive assembly to reduce helium leakage. Concentrically serrated members (31, 32) compress onto opposite sides of the soft metal gasket (30) to form labyrinthine sealing grooves therein.</p> |
