Drilling head assembly seal

Details Drilling head assembly seal Drilling head assembly seal

1981-03-16

1982-08-24

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

175195, 175195, F16J 1556

Patent

active

043457690

ABSTRACT:
In a drilling head assembly for rotary well drilling a tubular member has an external screw thread near its lower end, with the outer surface of the member below the thread tapering downwardly to its lower end to form a sealing surface. Screwed onto the thread is a metal ring that extends down past the sealing surface and is provided with an annular recess encircling and facing the sealing surface, from which it is spaced. A resilient sealing member encircles the ring and is secured to it, with the portion of the ring beside the sealing surface and below it embedded in the sealing member which also fills the annular recess in the ring. The sealing member converges downwardly below the ring to a neck portion, and the inner surface of the sealing member converges from above the annular recess downwardly to the neck portion so that the sealing member between the tapered sealing surface and the encircling portion of the ring is compressed by them to form a seal.

REFERENCES:
patent: 3400938 (1968-09-01), Williams
patent: 3503617 (1970-03-01), Williams
patent: 4143880 (1979-03-01), Bunting et al.
patent: 4157186 (1979-06-01), Murry et al.
patent: 4285406 (1981-08-01), Garrett et al.
patent: 4293047 (1981-10-01), Young

Affiliated with

Also associated with

Rating

Drilling head assembly seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1434152