| 摘要 |
<p>A mass spectrometer is disclosed has two components 4, 5 and an annular vacuum seal (o-ring, toric joint or packing) 2. The ring-seal 2 fits into a groove 3 in the first component 4, which may be a vacuum chamber in a spectrometer. The o-ring 2 has a main body 2 and one or more blade or rib portions 2a which protrude from the main body 2. The main body portion 2 is located in the groove 3 and the one or more blade or rib portions 2a protrude above or beyond a surface of the first component 4. The second component 5, which may be another vacuum chamber, can slide along the surface of the first component 4 thereby deforming or bending the one or more blade or rib protrusions 2a so that the one or more blade or rib portions 2a form a radial seal, diametric seal or piston seal between the first 4 and second 5 components.</p> |
