Sequenced heating for hot melt adhesive dispensing system
    1.
    发明授权
    Sequenced heating for hot melt adhesive dispensing system 失效
    热熔胶分配系统的顺序加热

    公开(公告)号:US4598842A

    公开(公告)日:1986-07-08

    申请号:US707090

    申请日:1985-03-01

    IPC分类号: B05C5/00 B05C11/10 B67D5/62

    CPC分类号: B05C11/1042 B05C5/001

    摘要: A hot melt adhesive dispensing system including a hot melt adhesive dispenser, a hot melt adhesive tank, and a hose for coupling hot melt adhesive from the tank to the dispenser. The dispenser, the tank and the hose are heated by electrical heaters to maintain the adhesive in a suitable molten condition for dispensing and for flowing from the tank to the dispenser. When the hot melt adhesive system is first energized, the hose and tank heaters are coupled to a source of electrical power and the temperature at either the tank or the hose is sensed. When the sensed temperature reaches a suitable preselected level, the dispenser heater is then energized by coupling the heater to a source of electrical power. In this way, as the adhesive in the dispenser is heated from a solid to a molten form, it is free to expand into the hose, with the adhesive in the hose adjacent the dispenser having already been heated to a molten state.

    摘要翻译: 一种热熔胶分配系统,包括热熔胶分配器,热熔粘合剂罐和用于将热熔粘合剂从罐耦合到分配器的软管。 分配器,罐和软管被电加热器加热,以将粘合剂保持在合适的熔融状态,用于分配和从罐流到分配器。 当热熔粘合剂系统首先通电时,软管和罐加热器耦合到电源,并且感测罐或软管处的温度。 当感测到的温度达到合适的预选电平时,分配器加热器然后通过将加热器耦合到电力源来激励。 以这种方式,当分配器中的粘合剂从固体被加热到熔融形式时,随着邻近分配器的软管中的粘合剂已经被加热到熔融状态,其可以自由扩展到软管中。

    Bridge circuit system
    2.
    发明授权
    Bridge circuit system 失效
    桥接电路系统

    公开(公告)号:US4639611A

    公开(公告)日:1987-01-27

    申请号:US689829

    申请日:1985-01-09

    摘要: A sensing circuit system including circuitry for sensing impedance variations of a variable impedance element. As disclosed, a bridge circuit system includes a bridge circuit to which the variable impedance element is couplable. The bridge circuit system further includes circuitry for detecting open circuit or short circuit fault conditions of the variable impedance element. The variable impedance element is coupled to the bridge circuit by a connector, having two connector components, which is also operable to couple the fault detection circuitry to the bridge circuit only when the two components of the connector are connected together.

    摘要翻译: 一种感测电路系统,包括用于感测可变阻抗元件的阻抗变化的电路。 如所公开的,桥式电路系统包括桥式电路,可变阻抗元件可耦合到该桥式电路。 桥接电路系统还包括用于检测可变阻抗元件的开路或短路故障状况的电路。 可变阻抗元件通过具有两个连接器部件的连接器耦合到桥式电路,连接器部件也可操作以仅在连接器的两个部件连接在一起时将故障检测电路耦合到桥接电路。