Apparatus for dispensing liquid material
A technology of liquid materials and equipment, which is applied in the field of equipment for distributing liquid materials to substrates, and can solve problems such as circumferential current delay magnetic field dissipation
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[0019] For purposes of the present discussion, the methods and apparatus of the present invention are described in connection with dispensing liquid materials. Such materials include hot melt polymeric materials used in bonding applications. Hot melt materials are generally solid at room temperature, but transform into a liquid state when heated. It should be understood that the method and apparatus of the present invention are considered equally applicable to dispensing other heated fluid materials such as waxes and those adhesives that are normally liquid at room or ambient temperature and therefore do not require heating and are sometimes referred to as cold glues .
[0020] The following definitions apply to this specification, including the claims, wherein "axial" and "axially" are used herein to refer to a line or direction substantially parallel to the axis of reciprocation of the dispenser plunger. "Radial" and "radially" are used to mean directions radially toward o...
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