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Automatically operated gate valve for recreational vehicles

  • US 5,078,180 A
  • Filed: 07/30/1990
  • Issued: 01/07/1992
  • Est. Priority Date: 07/30/1990
  • Status: Expired due to Fees
First Claim
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1. An external hydraulic device for operating a gate valve in a drainage line of a holding tank of a recreational vehicle comprising:

  • a. a support plate;

    b. means for fastening said support plate to said drainage linec. a hydraulic cylinder comprising a housing and a hydraulic rod;

    d. means for attaching said hydraulic cylinder housing to said support plate;

    e. a pivot arm having a first and second end and a pivoting means therebetween;

    f. means for securing said pivot arm at said first end to said hydraulic rod;

    g. means for securing said pivot arm at said second end to a control rod of said gate valve;

    h. means for securing said pivoting means of said pivot arm to said support plate; and

    i. means for operating said hydraulic cylinder.

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