Annular blowout preventer

Details Annular blowout preventer Annular blowout preventer

1980-04-04

1982-01-12

Spiegel, H. Jay

Valves and valve actuation

Blow-out preventers

251 5, 277103, 277188A, 277235R, E21B 3306

Patent

active

043101399

ABSTRACT:
An annular blowout preventer having a housing with a vertical bore therethrough, a packer including a resilient annulus and upper and lower series of irising metal inserts adapted to increase the support for the annulus when it is compressed axially to constrict the vertical bore and an annular piston movable in the housing to apply an axial compression load to the packer.

REFERENCES:
patent: 2148844 (1939-02-01), Stone et al.
patent: 2812197 (1957-11-01), Gibson
patent: 2846178 (1958-08-01), Minor
patent: 3572627 (1971-03-01), Jones et al.
patent: 3572628 (1971-03-01), Jones
patent: 3667721 (1972-06-01), Vujasinovic
patent: 3897071 (1975-07-01), Le Rouax
patent: 3915426 (1975-10-01), Le Rouax
patent: 3994472 (1976-11-01), Williams
patent: 4007904 (1977-02-01), Jones
patent: 4092010 (1978-05-01), Carlson, Jr.
patent: 4099699 (1978-07-01), Allen

Affiliated with

Also associated with

Rating

Annular blowout preventer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Annular blowout preventer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Annular blowout preventer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1537888