发明名称 |
Condition responsive apparatus having an improved motion transfer member |
摘要 |
A pressure responsive electrical switch uses precalibrated snap acting monometallic or bimetallic discs freely disposed in a disc seat formed on a base member. Over pressure protection in the form of a surface spaced just beyond the normal snapped position may be provided to avoid calibration changes. A flexible thin gasket is positioned over the disc and is sealed to the base by trapping between the base and a cap which is clamped to the base. Several seal variations are shown to provide varying degrees and types of seals. A rocker member having a specially curved surface rests on a movable contact arm and transfers motion from the disc to the movable arm. A support for the movable arm has a portion which is formed with a complementary curved portion which cooperates with the rocker member and a stationary contact to limit the amount of stress imparted to the movable contact arm. Several different embodiments of precalibrated disc switches are shown including a differential pressure switch and a switch in which the disc is part of the electrical circuit.
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申请公布号 |
US4260862(A) |
申请公布日期 |
1981.04.07 |
申请号 |
US19790013101 |
申请日期 |
1979.02.21 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
ORCUTT, JOHN W. |
分类号 |
H01H35/34;(IPC1-7):H01H35/34 |
主分类号 |
H01H35/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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