The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2011
Filed:
Mar. 21, 2007
Stig Ove Bjørgum, Voss, NO;
Stig Ove Bjørgum, Voss, NO;
Bjorgum Mekaniske AS, Voss, NO;
Abstract
A decomposable sealing device is described for use in liquid-filled pipes or boreholes, which is characterised in that the sealing device comprises a sleeve-shaped element () which envelops a number of strata () completely or partly in the pipe's radial and a longitudinal direction, comprising layered division of a number of decomposable strata () and a number of closed liquid-filled chambers () arranged between the strata () and where the sleeve-shaped element () comprises a body () which can be rearranged to establish connection between the respective chambers () and one or more grooves () in the inner wall of a pipe. A method for decomposing the sealing device is also described.