Vacuum switch |
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| 申请号 | US3740511D | 申请日 | 1971-05-06 | 公开(公告)号 | US3740511A | 公开(公告)日 | 1973-06-19 |
| 申请人 | WESTMORELAND J; | 发明人 | WESTMORELAND J; | ||||
| 摘要 | A sealed electrical switch is disclosed which includes a first conductive element and a second conductive element. The second conductive element is positioned with its first end in abutting relationship with the first end of the first conductive element, with the abutting surfaces of the conductive elements forming the contacts of the switch. Electrical terminals are connected to the other ends of the conductive elements, and an elastomer coating surrounds all of the switch except the electrical terminals. | ||||||
| 权利要求 | 2. The sealed switch of claim 1 in which said first and second surfaces are each substantially planar. 3. The sealed switch of claim 3 in which the area of said contact surfaces is less than the cross-sectional area of said conductive elements between said contact surfaces and said shoulder portions. 4. The sealed switch of claim 4 in which said elastomer material is selected from the group consisting of silicone, rubber, butyl, flourosilicone, polyurethane, polyacrylate, nitrile and chloropene. 5. A process for making a sealed switch which comprises the steps of: forming an elongated body of electrical conductive material having a terminal at each end thereof, coating said body with an elastomer coating but leaving at least a portion of said terminals uncoated, and breaking said elongated body within said elastomer coating into first and second conductive elements, whereby the adjacent surfaces of said conductive elements, after breaking, form first and second contact surfaces, respectively, which are complementary and which are hermetically sealed by said elastomer coating. 6. The process of claim 5 which further includes the step of forming a notch in the side of said elongated body prior to the step of coating said body with an elastomer material. 7. The process of claim 6 in which said notch is formed entirely around the circumference of said body. 8. The process of claim 7 in which said notch is machined into said body after said body is formed. 9. The process of claim 6 in which said body is molded from a conductive material and said notch is molded into said body at the time said body is formed. |
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