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:
Jan. 03, 1995
Filed:
Feb. 22, 1994
Robert G Pearce, Lincoln, NE (US);
Donald D Baldwin, Lincoln, NE (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A riser pipe assembly is provided for interconnecting a subsea wellhead on an ocean floor with an above-surface platform. The assembly includes at least one cable extending generally between the wellhead and the platform to provide vertical support for the assembly. A plurality of support plates are fixed to the cable at predetermined spaced locations therealong. At least one riser pipe string extends between the wellhead and the platform and includes a plurality of riser pipes engaged end-to-end. In one embodiment of the invention, each riser pipe includes a lower bell-shaped end and an upper spigot-shaped end inserted into the bell-shaped end of the immediately adjacent riser pipe thereabove. The lower bell-shaped end of each riser pipe rests by gravity on and is supported by one of the support plates. In another embodiment of the invention, each riser pipe includes an upper bell-shaped end and a lower spigot-shaped end inserted into the bell-shaped end of the immediately adjacent riser pipe therebelow. The enlarged juncture of the upper bell-shaped end of each riser pipe rests by gravity on and is supported by one of the support plates.