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1. 发明授权

US4004272A Optical pressure switch 失效
标题翻译：光压开关
公开(公告)号：US4004272A
公开(公告)日：1977-01-18
申请号：US597809
申请日：1975-07-21
申请人： William Eugene Claxton , Bruce Milan Cernik
发明人： William Eugene Claxton , Bruce Milan Cernik
IPC分类号： B60C23/04 , G01D5/34
CPC分类号： B60C23/0423
摘要： A device for providing an optical indication of the pressure condition in a pressurized member, such as a pneumatic tire. A housing having a window therein carries a reflective surface, such as a mirror, which is mounted on a movable flap. One end of a plunger pin holds the mirror in alignment with the window with the other end of the pin resting on a diaphragm assembly which communicates with the internal pressure of the member. Light from a light source is directed in the window and under normal pressure conditions will be reflected by the mirror. If the internal pressure of the member drops below a predetermined value, the diaphragm will retract dropping the pin thereby moving the mirror out of alignment with the light source. The absence of reflected light is thus indicative of a low pressure condition and corrective measures can be taken.
摘要翻译：一种用于在加压构件例如充气轮胎中提供压力状态的光学指示的装置。其中具有窗口的壳体具有安装在活动翼片上的诸如镜子的反射表面。柱塞销的一端将镜子保持与窗口对齐，销的另一端搁置在与构件的内部压力连通的膜片组件上。来自光源的光被引导到窗口中，在正常压力条件下将被反射镜反射。如果构件的内部压力下降到预定值以下，则隔膜将缩回引脚，从而使反射镜移动与光源对准。因此，没有反射光表示低压条件，并且可以采取纠正措施。

2. 发明授权

US3930918A Method of preparing a steel cord for the measurement of stress therein 失效
标题翻译：制备钢丝绳测量应力的方法
公开(公告)号：US3930918A
公开(公告)日：1976-01-06
申请号：US462708
申请日：1974-04-22
申请人： Bruce Milan Cernik
发明人： Bruce Milan Cernik
IPC分类号： G01M17/02
CPC分类号： G01M17/02
摘要： Disclosed is a method and apparatus for measuring stresses in a wire or wire cord, such as that found in the reinforcing belt of a pneumatic tire. A portion of the wire is encapsulated in a solder material which is machined such that a rectangular solid billet of the solder is formed thereon. A transducer or plurality of transducers in the form of strain gauges are fixed to at least one flat surface on the billet and oriented in a direction such that forces applied to the tire will affect the resistance of the transducer. The resistance of the transducer can be balanced in a bridge network and the voltage resulting therefrom suitably readout in terms of the stress being applied to the wire cord. The cord can be built into a tire with the lead wires from the transducer being fed through the tire to the bridge network. The stress tests can then be accomplished in an inflated and running tire.

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