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Elastomeric bladder assembly

  • US 4,386,929 A
  • Filed: 10/19/1981
  • Issued: 06/07/1983
  • Est. Priority Date: 01/18/1980
  • Status: Expired due to Term
First Claim
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1. An elastomeric bladder assembly for dispensing a fluid under pressure comprising in combination;

  • (a) an elastomeric bladder having opposed ends;

    (b) puncturable, resealable septum means in fluid sealing relationship to one end of said bladder whereby fluid may be introduced into said bladder through said septum means and;

    (c) lumen filling means disposed between said opposed ends, said lumen filling means comprising at least two posts received in and substantially filling the lumen of said elastomeric bladder when said elastomeric bladder is in a deflated condition, said posts in the deflated condition being axially aligned in end to end abutting relationship and being capable of resisting axial compressive loads between said opposed ends while offering substantially no resistance to axial expansion and contraction of said bladder;

    whereby said opposed ends may be maintained in spaced apart relationship while said bladder is deflated and said opposed ends are free to move axially apart during inflation and axially together during deflation of said bladder.

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