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US 4,114,654 AGranted
Tube plug
AssigneeFurmanite International Limited
InventorArthur William Richardson
Life of this patent
Estimating the term…
Abstract
A bore plug comprises a deformable sleeve to fit inside a bore to be plugged, two tapered members interfitting with the sleeve to engage opposite ends thereof, and an intercoupling of the tapered members actuatable to draw the latter together and deform the sleeve into circumferential engagement with the interior of the bore at or near each end of the sleeve. Provision of bored channels in one of the tapered members and the sleeve allows introduction of flowable sealing material after deformation of the sleeve.
Claims10
A bore plug comprising:
- (i) a deformable sleeve to fit inside a bored structure, such as a tube, to be plugged
- (ii) two tapered members interfitting with said sleeve to engage opposite ends thereof,
- (iii) a structure carrying said tapered members and permitting relative movement of said members axially of the sleeve, said structure including parts relatively movable axially of the sleeve and each coacting with a respective one of the tapered members such that by relative movement of said parts said tapered members may be drawn together axially of the sleeve to deform permanently axially-spaced portions of the sleeve into circumferential engagement with the bore, an annular chamber being then bounded by the sleeve and the bore between said circumferentially-engaged portions, said sleeve having an aperture at a position axially between said circumferentially-engaged portions, and said structure including a passageway opening within said sleeve through said aperture and communicating with said chamber way for introduction to said chamber of a flowable sealant.
Dependencies are inferred from the claim text.