Subsea gate valve actuator with external manual override and dri

Details Subsea gate valve actuator with external manual override and dri Subsea gate valve actuator with external manual override and dri

1985-06-18

1987-03-17

Scott, Samuel

Valves and valve actuation

Fluid actuated or retarded

Fluid and non-fluid actuators

251 635, 251187, 251367, 251 62, 137 812, 1372361, 92161, F16K 3112

Patent

active

046501517

ABSTRACT:
A hydraulically operated actuator for a sliding gate valve designed for use in a subsea environment. The actuator includes a manual override system that functions independently of the actuator's hydraulic piston and return spring, an externally accessible valve gate drift adjustment, an externally adjustable upstop for the actuator stem, a stem thread assembly that can be manufactured from a material different from the actuator stem to prevent or reduce the possibility of thread galling, a hydraulic control pressure porting system integral with the hydraulic cylinder to minimize space requirements, and a facility for accommodating an optional external electrical stem position indicator package.

REFERENCES:
patent: 489799 (1893-01-01), Ford
patent: 535314 (1895-03-01), Bartlett et al.
patent: 978860 (1910-12-01), Dietz
patent: 1341319 (1920-05-01), Hodges
patent: 1433139 (1922-10-01), Lolton
patent: 1621509 (1927-03-01), Humason et al.
patent: 1781091 (1930-11-01), Wilson
patent: 2094288 (1937-09-01), Zinkil et al.
patent: 2542390 (1951-02-01), Brown
patent: 2596532 (1952-05-01), Coolidge et al.
patent: 2622617 (1952-12-01), Sederquist
patent: 2667892 (1954-02-01), Gentzel
patent: 2698157 (1954-12-01), Ludeman
patent: 3081116 (1963-03-01), Weiner et al.
patent: 3282227 (1966-11-01), Nielson
patent: 3290003 (1966-12-01), Kessler
patent: 3379405 (1968-04-01), Natho
patent: 3402912 (1968-09-01), Watkins
patent: 3466001 (1969-09-01), Nelson
patent: 3913883 (1975-10-01), Irwin
patent: 4135547 (1979-01-01), Ackkerman et al.
patent: 4180239 (1979-12-01), Valukis
patent: 4213480 (1980-09-01), Orum et al.
patent: 4231389 (1980-11-01), Still et al.
patent: 4289294 (1981-09-01), McLean
patent: 4436279 (1984-03-01), Bonds et al.
patent: 4444220 (1984-04-01), Seger
patent: 4483509 (1984-11-01), Lewcock et al.

Affiliated with

Also associated with

Rating

Subsea gate valve actuator with external manual override and dri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subsea gate valve actuator with external manual override and dri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subsea gate valve actuator with external manual override and dri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1783610