Inflatable packer inner bladder retention and seal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 21, 1995
Grant Date -
N/A
app pub date -
Nov 25, 1992
filing date -
Nov 25, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Bladder retention for an inflatable packer includes a tubular base and a retainer member. Retainer teeth are provided on both the tubular base and the retainer member to retain the bladder against the axial loads of inflation. Separate sealing ribs are provided on at least one of the tubular base and retainer member which positively engage a portion of the bladder which is not subjected to longitudinal stresses due to its location outwardly of the retainer teeth. Additionally, an elastomeric o-ring seal is provided between the retainer member and the tubular base thereby blocking the application of pressure forces tending to disengage the elastomeric bladder from its retention assembly.
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