Gravity switch and method of making same |
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| 申请号 | EP84302977 | 申请日 | 1984-05-03 | 公开(公告)号 | EP0125839A3 | 公开(公告)日 | 1985-07-10 |
| 申请人 | U.S. PLASTICS CORPORATION; | 发明人 | Hill, Clinton Wallace; | ||||
| 摘要 | @ A moulded cup-shaped insulator (19) and a cup-shaped conductor (26) are pressed together in telescoping relationship at an interference fit, whereby the two cup-shaped members comprise an integral dimensionally stable sealed enclosure for a contact member (28) movable axially therein for selectively making or breaking an electrical connection between the cup shaped conductor and a second conductor (22) extending axially through and sealed within the base (21) of the cup-shaped insulator. The axially outer surfaces of the base of the cup-shaped insulator and the second conductor comprise electrical contacts for a gravity-actuated switch adapted to be selectively and releasably confined between a pair of axially spaced contacts within a container for the switch. The overall axial dimension between the axially outer surfaces is preselected without recourse to close axial tolerances in the fabrication of the cup-shaped members, merely by telescoping the cup-shaped members coaxially together until the preselected axial dimension is obtained. In one embodiment the cup-shaped insulator has a cylindrical base and a coaxial diametrically reduced cylindrical portion extending from the base to an upper opening. The conductor is telescoped over the diametrically reduced portion in fluid sealing relationship, whereby said enclosure has an interior cylindrical surface of optimum diameter for the axially movable contact member comprising a metallic ball also of optimum diameter for any given size switch. | ||||||
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| 说明书全文 | |||||||
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