Method for producing a glass-encapsulated reed-contact switch |
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| 申请号 | US38961573 | 申请日 | 1973-08-20 | 公开(公告)号 | US3828427A | 公开(公告)日 | 1974-08-13 |
| 申请人 | BUNKER RAMO; | 发明人 | HUTTNER T; | ||||
| 摘要 | This disclosure relates to a method for producing reed switches whereby a first contact is embedded in one end of a glass tube, a second contact is positioned through the other end of the glass tube, the temperature of the other end is controlled to embed a portion of the second contact in viscous glass, a magnetic field is applied to both contacts during which time the second contact is moved with respect to the first contact until the reed switch is actuated, and finally, the other end of the glass tube is cooled to harden the viscous glass and hold the second contact. | ||||||
| 权利要求 | 1. A method of producing a reed switch comprising: providing a first contact embedded in one end of a glass tube, positioning a second contact through the other end of said glass tube, controlling the temperature of said other end to embed a portion of said second contact in viscous glass, applying a magnetic field to said contacts, moving said second contact with respect to said first contact until said reed switch is actuated in said magnetic field, and cooling said other end of said glass tube to harden said glass and hold said second contact. 2. The method as claimed in claim 1, wherein the step of applying a magnetic field comprises applying a magnetic field having a strength corresponding to the strength of the operating field for said reed switch. 3. The method as claimed in claim 1, wherein said step of moving said second contact comprises the step of moving said second contact toward said first contact. 4. The method as claimed in claim 1, including the step of demagnetizing said contacts before said step of applying said magnetic field. 5. The method as claimed in claim 4, wherein said demagnetizing step comprises exposing said contacts to a gradually decreasing alternating magnetic field. |
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