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Spring hanger assembly

  • US 4,025,011 A
  • Filed: 09/12/1975
  • Issued: 05/24/1977
  • Est. Priority Date: 09/12/1975
  • Status: Expired due to Term
First Claim
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1. A spring hanger assembly for suspending pipelines comprising spring carrying means attachable to a supporting structure, a first sprung member carried by said spring carrying means, a second sprung member carried by said first sprung member, and locking means for releasably securing said second sprung member and said spring carrying means against movement relative to one another and thereby securing said first sprung member against movement relative to said spring carrying means and said second sprung member, and wherein said spring carrying means comprises an outer casing having at one end thereof means for attaching said outer casing to the supporting structure, and having at the other end thereof an inwardly extending flange, an outer compression spring supported by said inwardly extending flange, and an inner compression spring disposed within and coaxial with said outer compression spring, said first sprung member comprising an inner casing having at one end thereof an outwardly extending flange bearing on said outer compression spring at the other end of said outer compression spring, said inner casing having at the other end thereof an inwardly extending flange supporting said inner compression spring at one end of said inner compression spring, and said second sprung member comprising a pipeline suspension assembly disposed coaxially within said inner casing and having means bearing on said inner compression spring at the other end of said inner compression spring, said locking means releasably securing said pipeline suspension assembly and said outer casing against movement relative to one another, said inner and outer spring and said inner casing being thereby also releasably secured against movement relative to one another and to said pipeline suspension assembly and said outer casing and wherein said pipeline suspension assembly comprises a first plate member bearing on said inner compression spring at said other end of said inner compression spring, a rodshaped member extending from said first plate member coaxial to and within said inner compression spring, a second plate member secured to said rodshaped member and spaced from said first plate member, said second plate member having an area greater than that of the opening of said inwardly extending flange of said inner casing.

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