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Equipment for forming temporary connections for the transfer of objects between discontinuous confined volumes

  • US 5,291,925 A
  • Filed: 09/15/1992
  • Issued: 03/08/1994
  • Est. Priority Date: 09/18/1991
  • Status: Expired due to Fees
First Claim
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1. Equipment for forming connections between discontinuous confined volumes, comprising:

  • an isolating chamber;

    an annular connector provided on said isolating chamber, said annular connector defining an isolating chamber access opening, said access opening having a first access opening dimension which is greater than a second access opening dimension, said second access opening dimension being perpendicular to said first access opening dimension, said annular connector including an internal wall defining a substantially constant isolating chamber access opening cross section;

    a closure piece including an annular member, a closure piece membrane and an annular cutting means for cutting said closure piece membrane and for cutting another membrane joined thereto;

    a transfer machine including a frame defining a passageway slot and a transfer machine membrane fastened to said frame;

    adhesive means associated with each of said closure piece membrane and said transfer machine membrane for adhering said membranes to each other to form joined membranes upon said isolating chamber and said transfer machine being joined up, said annular cutting means cutting said joined membranes to form a joined membrane discoid formed by at least two peripherally joined thicknesses of said joined membranes, said joined membrane discoid being movable into one of said isolating chamber and said transfer machine;

    and an additional closure piece positioned in one of said isolating chamber and said transfer machine and being positionable in said annular connector from an interior of said isolating chamber to replace said closure piece of said joined membranes.

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