| 摘要 |
1,133,623. Sealed magnetic contact devices. INTERNATIONAL STANDARD ELECTRIC CORP. 11 March, 1966 [16 March, 1965], No. 10811/66. Heading H1N. The housing of a sealed contact unit is formed of two parts 1, 2 having stepped engaging surfaces which are sealed together with contact blades 3, 4 on each step so that the size of the step 5 determines the distance between the contact blade ends in the de-energized condition or unattracted position when a permanent biasing magnet 7 is mounted in the housing. A plurality of contact sets in a single housing may be biased by a single permanent magnet (Fig. 3, not shown). |
