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. An annotated bibliography of patents related to coastal engineering. Patents; Coastal engineering. AUGUST 31, 1971 3,601,999 METHODS OF GROUTING OFFSHORE STRUCTURES Horace W. Olsen, 2038 North Blvd., Houston, Tex., and Max Bassett, P.O.Box 808 South, South Houston, Tex. Filed Sept. 18, 1969, S«r. No. 858,951 Int. CI. E02b / 7/00, E02d 5124 U.S. CI. 61-46 1 Claim Compressed air is introduced into an annular space exist- ing between the jacket and piling in the legs of an offshore structure, so that water is expelled from the annular space through the lower end of the jacket and grouting material is then introduced into the annular space. The introduction of compressed air and grouting material is effected from above the waterline, thus avoiding the necessity of performing the grouting operation by divers at the sea bed Keywords: Grouting; Offshore construction; Pile, structure connection U.S. CI. X.R. 61-54 See: Re. 28,232. 3,602,000 REINFORCED STEEL PIPE PILING STRUCTURE Homayoun Joe Meheen, Box 515, Rte. 3, Golden, Colo. Continuation-in-part of application Ser. No. 712,187, Mar. 11, 1968, now Patent No. 3.403,707, dated July 16, 1969. This application Sept. 19, 1969, Ser. No. 859,403 Int. CI. EO^d 5140. 5158; E04c 3134 U.S. CI. 61-46 lOCIainu Reinforcement for steel pipe piles and piling structure such as that supporting an offshore oil platform, which has deteri' orated and lost its strength. The pile is reinforced in situ by cutting an access opening into its interior, or cutting such an access opening through the pile to communicate with the in- tenor of a steel bracing pipe in the structure, and introducing a partially prestressed and partially reinforced concrete column inside the steel shell. Keywords: Offshore construction; Offshon platform, leg; Pile, concrete; Pile, steel; Structure repair U.S. CI. X.R. 52-223; 61-53; 61-53.52; 61-56. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabili