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:
Jul. 21, 1981
Filed:
May. 29, 1979
Don B Landers, Arlington, TX (US);
Oil States Rubber Company, Arlington, TX (US);
Abstract
Offshore platform leg jacket and piling sets having inflatable grout seals with inflation lines extended to the outside of respective jackets and upward to the top of the jackets each equipped with a premature inflation prevention structure low in the inflation line preventing fluid hydrostatic pressure from causing premature grout seal inflation. The structure inserted low in each inflation line is in the form of a rupture disc or, alternately, a pressure controlled relief valve so selected and/or set that the hydrostatic fluid pressure required to burst the rupture disc or to open activate the relief valve is always higher than the maximum hydrostatic pressures the respective grout seals are exposed to.