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US 4,439,070 AGranted
Method for restoring an underwater piling and an underwater jacket used therewith
OwnerFloyd E. Dimmickinventor
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OwnerFloyd E. Dimmickinventor
Estimating the term…
The method for restoring an underwater wood, concrete or steel piling or other underwater structure includes the steps of: placing a jacket around a portion of a piling to be restored; securing the jacket in place around the piling so as to create a closed, annular space between the piling and the jacket; injecting, in at least one location at the lower end of the annular space, an epoxy resin composition into the annular space while at the same time venting the annular space in at least one location at the upper end of the annular space until the epoxy resin composition begins to escape from the upper end of the annular space. The underwater injection jacket comprises a sheet of flexible material having an upper edge and a lower edge and which is coilable into a generally cylindrically shaped jacket about an underwater piling with first and second mating edges of the sheet adapted to be secured in place relative to each other to form the jacket about the piling. A first sealing strip is provided along the lower edge of the sheet and a second sealing strip is provided along the upper edge of the sheet for establishing lower and upper annular seals between the jacket formed by the sheet and the piling when the mating edges are secured in place thereby forming a closed annular space within the jacket. A clamping system is provided for securing the mating edges in place relative to each other and in a sealed manner. The jacket also has inlet ports for the injection of epoxy resin into the annular space and venting ports for venting water from the annular space. Additionally, two semi-annular space portions can be formed so that epoxy resin composition can be injected into one side of the jacket while a vacuum is drawn on the other side of the jacket to seal cracks within the piling.
A method for restoring an underwater concrete, wood or steel piling or other underwater structure including the steps of:
An underwater injection jacket comprising a sheet of flexible plastic material having an upper edge and a lower edge and which is coilable into a jacket around an underwater piling with first and second mating and overlapping edges of said sheet adapted to be secured in place in overlapping relationship relative to each other to form said jacket about the piling, first compressible sealing means along said lower edge of said sheet for establishing a lower annular seal between said jacket formed by said sheet and the piling when said mating edges are secured in place in overlapping relationship relative to each other thereby to form an annular space within said jacket, clamping means for clamping said mating edges in place in overlapping relationship relative to each other and in a sealed manner, said clamping means comprising adjustable spring biased means for drawing the opposed longitudinal edges of the sheet of plastic material together in overlapping relationship to each other and means for securing the drawn together overlapping edges in place.
Dependencies are inferred from the claim text.