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Pressure information processing system suitable for use in a vacuum unit

  • US 5,481,482 A
  • Filed: 08/22/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 09/05/1991
  • Status: Expired due to Fees
First Claim
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1. A system for processing pressure information for a vacuum unit operable on a workpiece, comprising:

  • (a) a vacuum generator for generating a vacuum;

    (b) a vacuum generator detecting means for detecting a vacuum generator vacuum level of vacuum generated by said vacuum generator;

    (c) an interface component which interfaces said vacuum generator with the workpiece;

    (d) interface component detecting means for detecting an interface component vacuum level of vacuum in said interface component;

    (e) determining means for determining whether a predetermined critical value has been met, wherein said interface component vacuum level is compared with said predetermined critical value, said predetermined critical value thereafter being adjusted as a function of said vacuum generator vacuum level to provide an adjusted predetermined critical value.

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