Rotating cup coating device
First Claim
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1. A rotating cup coating device, comprising:
- an inner cup for being driven to rotate by a spinner and for supporting thereon a substantially planar material to be treated;
an outer cup disposed outside of the inner cup for receiving a drain from said inner cup;
a first lid body for covering an upper surface of said inner cup; and
a second lid body for covering an upper surface of said outer cup, wherein;
a buffer space is defined in an outer periphery of said inner cup for connecting an inner space of said inner cup and an inner space of said outer cup.
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Abstract
A rotating cup type liquid coating device with structure for suppressing pulsatory movement of the coated liquid when stopping rotation of the inner cup 3, includes a buffer space S formed for connecting an inner space of the inner cup 3 and an inner space of an outer cup 2 surrounding the inner cup, on an outer periphery of the inner cup 3 , through respective throttle portions 16, 17.
11 Citations
19 Claims
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1. A rotating cup coating device, comprising:
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an inner cup for being driven to rotate by a spinner and for supporting thereon a substantially planar material to be treated; an outer cup disposed outside of the inner cup for receiving a drain from said inner cup; a first lid body for covering an upper surface of said inner cup; and a second lid body for covering an upper surface of said outer cup, wherein; a buffer space is defined in an outer periphery of said inner cup for connecting an inner space of said inner cup and an inner space of said outer cup. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A rotating cup coating device, comprising:
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an inner cup for being driven to rotate by a spinner and for supporting thereon a substantially planar material to be treated; an outer cup disposed outside of the inner cup for receiving a drain from said inner cup; lid means for selectively covering upper surfaces of said inner cup and said outer cup; and buffer means defined in an outer peripheral portion of said inner cup for providing a buffered communication path between an inner space of said inner cup and an inner space of said outer cup to reduce pressure differences between the inner spaces of said inner and outer cups. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification