发明名称 |
FLUID ACTIVATED SWITCH APPARATUS |
摘要 |
A pneumatic switch unit includes a switch housing. A conductive contact spring is mounted between diametric supports, one being adjustable. The spring has a central actuator arm and an offset contact arm interconnected to an encircling frame. A two piece switch actuator has clamp members clamped to the actuator arm. Separate end closure members secured to the switch housing ends. The closure member may clamp a diaphragm against the housing, with the diaphragm engaging the actuator. The closure member may have a mechanical actuating member or a simple closure plate engaging the actuator. The two switch housings may be mounted to the opposite sides of a single pressure chamber with end diaphragms closing the opposed ends of the switch housing. The pressure actuates both switch units to establish a sequence switch unit. The spring has a rectangular frame with a central opening having an actuating arm therein. The opposite spring ends are mounted in supports one of which is adjustable. A contact arm is secured to one end and projects parallel to the side. The opposite spring corner includes a notch to control the snap action. An alternate spring has an annular ring with a chordal actuator arm and a chordal contact arm. The spring is mounted on a line perpendicular to the two arms. |
申请公布号 |
WO9100607(A3) |
申请公布日期 |
1991.04.04 |
申请号 |
WO1990US03736 |
申请日期 |
1990.06.29 |
申请人 |
ATKINSON, LOUIS, D. |
发明人 |
ATKINSON, LOUIS, D.;SMITH, TERENCE, T. |
分类号 |
H01H35/26;H01H35/34 |
主分类号 |
H01H35/26 |
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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