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Self aligning stuffing box and guide bushing assembly

  • US 6,000,469 A
  • Filed: 02/17/1998
  • Issued: 12/14/1999
  • Est. Priority Date: 02/17/1998
  • Status: Expired due to Term
First Claim
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1. A self aligning stuffing box and guide bushing assembly comprising:

  • a frame including a floor surface and a roof surface spaced from, opposed to and generally parallel with said floor surface;

    a seal holder including a packing disposed therein and forming a seal around a reciprocating pump rod extending through said frame, said seal holder being supported by said frame for limited lateral excursion with respect to a central longitudinal axis; and

    a guide bushing supported by said frame and having a bore forming a bearing surface for engagement with said pump rod to react lateral forces acting on said pump rod whereby said seal holder and said packing may follow wear on said guide bushing in any direction about said central longitudinal axis while experiencing negligible uneven wear on said packing.

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