Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Reexamination Certificate
2006-09-26
2006-09-26
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Marine structure or fabrication thereof
With anchoring of structure to marine floor
C405S195100
Reexamination Certificate
active
07112011
ABSTRACT:
A hydro-pneumatic tensioner includes a barrel having an inner bore and a pressurized fluid contained within to form at least part of a primary accumulator having a preset volume of gas at a nominal pressure. A piston having a piston rod extending from an aperture in the barrel is slidably carried in the bore of the barrel and is in communication with the pressurized fluid and positioned to increase the fluid pressure when the piston strokes in the direction of the pressurized fluid. A secondary accumulator also has a preset volume of gas at a preselected pressure. A fluid separator maintains functional separation of the fluid volumes of the primary and secondary accumulators when the primary accumulator pressure is less than the preselected secondary accumulator pressure. The fluid separator allows functional combining of the fluid volumes of the primary and secondary accumulators when the primary accumulator pressure equals or is greater than the preselected secondary accumulator pressure.
REFERENCES:
patent: 3912227 (1975-10-01), Meeker et al.
patent: 3970292 (1976-07-01), Dachicourt et al.
patent: 4222341 (1980-09-01), Larsen et al.
patent: 4272059 (1981-06-01), Noerager et al.
patent: 4367981 (1983-01-01), Shapiro
patent: 4379657 (1983-04-01), Widiner et al.
patent: 4432420 (1984-02-01), Gregory et al.
patent: 4537533 (1985-08-01), Hampton
patent: 4799827 (1989-01-01), Jaqua
patent: 4808035 (1989-02-01), Stanton et al.
patent: 4883387 (1989-11-01), Myers et al.
patent: 5252004 (1993-10-01), Butler et al.
patent: 5366324 (1994-11-01), Arlt et al.
patent: 5658095 (1997-08-01), Arlt et al.
patent: 5846028 (1998-12-01), Thory
patent: 6691784 (2004-02-01), Wanvik
patent: 6968900 (2005-11-01), Williams et al.
patent: 7008340 (2006-03-01), Williams et al.
patent: 10251212 (2004-05-01), None
patent: 1428973 (2004-06-01), None
patent: 2180619 (1987-04-01), None
Kelly Andrew Campbell
McCarty Jeffery Kirk
Pallini, Jr. Joseph William
Bracewell & Giuliani LLP
Lagman Frederick L.
Vetco Gray Inc.
LandOfFree
Hydro-pneumatic tensioner with stiffness altering secondary... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydro-pneumatic tensioner with stiffness altering secondary..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydro-pneumatic tensioner with stiffness altering secondary... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3528705