Variable bore packer for a ram type blowout preventer

Details Variable bore packer for a ram type blowout preventer Variable bore packer for a ram type blowout preventer

1990-02-01

1991-04-09

Fox, John C.

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

277129, 277188A, E21B 3306

Patent

active

050058029

ABSTRACT:
A packer for use with a ram-type blowout preventer which has the capacity to accommodate a plurality of sizes of tubular members extending through the bore of the blowout preventer, the packer having a resilient body to fit the face recess of the ram and a central recess to receive a tubular member, an upper plate positioned in the upper portion of the resilient body, a lower plate positioned in the lower portion of the resilient body, a plurality of metal insert segments positioned between the upper surface of the resilient body and the under surface of the upper plate and around the central recess of the resilient body, the metal insert segments having sufficient length to engage the exterior of a tubular member which is to be engaged and sealed against by the resilient body with the insert segments being selected to seal against a preselected small tubular member diameter which is less than the diameter which could be sealed by the packer without the insert segments. The resilient body is provided with a relief area around its central recess immediately above the upper plate. In another form a second set of insert segments are provided to extend to a smaller diameter than the first set of insert segments.

REFERENCES:
patent: 2193110 (1940-03-01), Penick et al.
patent: 2194256 (1940-03-01), Allen
patent: 2194259 (1940-03-01), Allen
patent: 2446224 (1948-08-01), Frisby et al.
patent: 3897071 (1975-07-01), LeRouax
patent: 3915426 (1975-10-01), LeRouax
patent: 4229012 (1980-10-01), Williams, III
patent: 4332367 (1982-06-01), Nelson
patent: 4456215 (1984-06-01), Bishop et al.
patent: 4579314 (1986-04-01), Schaeper et al.

Affiliated with

Also associated with

Rating

Variable bore packer for a ram type 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 Variable bore packer for a ram type blowout preventer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable bore packer for a ram type blowout preventer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2028690