Deformable member

Patent 6896049 Issued on May 24, 2005. Estimated Expiration Date:

January 6, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2683928

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Inventor

Moyes, Peter Barnes

Assignee

Zeroth Technology Ltd.

Application

No. 10336848 filed on 01/06/2003

US Classes:

166/82.1, Releasable seal or cleaner disengaged by projection on inner member166/118, With expanding anchor166/387With sealing feature (e.g., packer)

Examiners

Primary: Tsay, Frank

Attorney, Agent or Firm

Jones Day

Foreign Patent References

87026 DE 01/01/1985
0 029 380 EP 05/01/1981

International Class

E21B033/10

Abstract

A deformable member can be used in a well tool for use in downhole oil/gas wells. In one embodiment, a deformable member (46) is described which is deformable between undeformed and deformed positions, and comprises a generally hollow cylindrical body (48) defining a wall (50). The wall (50) includes three circumferential lines of weakness in the form of grooves, with two grooves (52, 54) provided in an outer surface (56) of the member wall (50), and the other groove (58) provided in an inner surface (60). The member (46) is deformed outwardly by folding about the lines of weakness (52, 54, 56) and is used in particular to obtain sealing contact with a tube in which the member (46) is located.