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Top cover clamp for screening machine

  • US 5,186,333 A
  • Filed: 09/27/1991
  • Issued: 02/16/1993
  • Est. Priority Date: 07/18/1991
  • Status: Expired due to Fees
First Claim
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1. A screening machine having a screen box mounting a screen assembly, a removable top cover on said box, and a plurality of clamps for clamping said cover and said box together,each said clamp comprising:

  • an inflatable air actuator having opposite first and second ends and being expandable from an unpressurized normal condition by internal pressurization; and

    at least one clamp arm having a pivot end and an outer end, said pivot end being pivotally mounted to one of said cover and said box, said first end of said actuator being mounted to the outer end of said clamp arm,said cover and said box being clamped together by pivoting said clamp arm to position said actuator proximate to a clamping surface provided by the other of said cover and said box, and pressurizing said actuator to bring said second end to bear against said clamping surface.

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