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. 



1 1, 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 



Figure 5. Typical annotations for original patents issued since 1969. 



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