Patent ID: 11931800
Assignee: TERVES, LLC
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  E | IPC B  C  E

Claim 2:
3. A centralizing device that is configured to be positioned about an outer surface of a bore member; said centralizing device includes a body, an active material selected from the group consisting of an expandable material and a degradable material, and first and second well bore wall engagement members; said first and second well bore wall engagement members include one or more structures selected from the group consisting of a slat, a wing, a bow, a leaf, a ribbon, an extension and a rib; said first and second well bore wall engagement members are configured to move from a non-deployed position to a deployed position; said active material is configured to cause said first and second well bore wall engagement members to move from said non-deployed position to said deployed position; a maximum outer perimeter of said centralizing device is greater in size when said first and second well bore wall engagement members are in said deployed position as compared to when said first and second well bore wall engagement members are in said non-deployed position; at least a portion of said first and second well bore wall engagement members is positioned farther from a central axis of said body when in said deployed position than when said first and second well bore wall engagement members are in said non-deployed position; said expandable material includes one or more of (i) a catalyst that is formulated to accelerate reaction of said reactive particles and (ii) strengthening fillers, diluting fillers, or combinations thereof that include one or more materials selected from the group consisting of fumed silica, silica, glass fibers, carbon fibers, carbon nanotubes, and other finely divided inorganic material.