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Brammer; Norman
Ventura, CA
No. of patents:

Patent Number Title Of Patent Date Issued
4722391 Wellhead system February 2, 1988
A pack-off assembly for a wellhead system including a tapered pack-off mounted on a pack-off nut (22) which has multi-start threads (40) for engaging similar mating multi-start threads (26) on a casing hanger (C). The casing hanger (C) is provided with a taper (20) which faces the su
4714111 Weight/pressure set pack-off for subsea wellhead systems December 22, 1987
A pack-off assembly (P) for a wellhead system (W) comprising of a pack-off nut (36) with a tapered pack-off (40). The pack-off nut (36), in one embodiment, contains an internally tapered split ring (44) having multi-start threads (46) for engaging similar mating multi-start threads (
4702481 Wellhead pack-off with undulated metallic seal ring section October 27, 1987
A pack-off (10) comprising of two metallic rings (12, 14) with a serpentine or undulating band (16) integral therewith embedded in elastomeric material (32). The lower metallic ring (14) is narrower than the upper metallic ring (12) and the serpentine band (16) and elastomeric material
4696493 Subsea wellhead tieback system September 29, 1987
A conductor tieback connector (T) thus having a tubular body (12) connectible to the lower end of a conductor or a string of conductors (C), a downwardly extending funnel (20) with two bearing surfaces and a tapered guide (24). The tapered guide (24) aids in initial stabbing of the c

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