Spring load seal assembly and well drilling equipment...

Details Spring load seal assembly and well drilling equipment... Spring load seal assembly and well drilling equipment...

2011-01-11

2011-01-11

Bomar, Shane (Department: 3676)

Wells

Packers or plugs

Deformable portion engages conduit restriction

C175S203000, C166S078100, C166S084300, C277S326000, C277S343000

Reexamination Certificate

active

07866382

ABSTRACT:
A top drive apparatus for a well drilling head comprises a top drive structure, a seal body and a plurality of resilient members. The top drive structure is configured for being fixedly attached to an upper end portion of a bearing assembly and having a seal-carrying portion. The seal body has a mounting portion and a wiper portion extending from the mounting portion. The mounting portion is slideably disposed within a groove of the seal-carrying portion of the top drive structure. The plurality of resilient members are disposed within the groove between the mounting portion of the seal body and the top drive structure such that the entire seal body is resiliently displaceable with respect to the top drive structure.

REFERENCES:
patent: 3297091 (1967-01-01), Dale
patent: 7635034 (2009-12-01), Williams et al.

Affiliated with

Also associated with

Rating

Spring load seal assembly and well drilling equipment... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2634910