Debris protection for sliding sleeve

Details Debris protection for sliding sleeve Debris protection for sliding sleeve

2011-01-18

2011-01-18

Stephenson, Daniel P (Department: 3676)

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

C166S316000

Reexamination Certificate

active

07870907

ABSTRACT:
Sliding sleeve mechanisms including protective sheaths for debris protection are disclosed. Protective sheaths can be formed from materials such as composites, metal, foil, rubber, plastic, glass, ceramic, wire mesh, tape, etc. The protective sheaths can be substantially cylindrical shells (having one or more pieces), plugs in the flow ports, and/or tape or wire wrappings. The protective sheaths can be retained by recesses in the sliding sleeve or mechanical fasteners such as screws, pins, rivets, snap rings, bands, and buckles. The protective sheath can be outside or inside the sliding sleeve. The protective sheath can protect the sliding sleeve from debris by retaining grease that has been packed into the sliding sleeve for that purpose or positively preventing entry of debris into the sliding sleeve. The protective sheath can be cleared by permitting fluid flow through the sliding sleeve, which can act to destroy and/or wash away the protective sheath.

REFERENCES:
patent: 3390724 (1968-07-01), Caldwell
patent: 4880059 (1989-11-01), Brandell et al.
patent: 4949788 (1990-08-01), Szarka et al.
patent: 5337808 (1994-08-01), Graham
patent: 5425424 (1995-06-01), Reinhardt et al.
patent: 2006/0124310 (2006-06-01), Lopez de Cardenas et al.
patent: 2006/0272807 (2006-12-01), Adam et al.
patent: 2008004876 (2008-01-01), None
European Search Report dated May 22, 2008 regarding European Application No. 08250525.6.

Affiliated with

Also associated with

Rating

Debris protection for sliding sleeve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Debris protection for sliding sleeve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Debris protection for sliding sleeve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2624147