US 12,359,518 B1
Resettable element back-up system
Heath Bringham, Sand Springs, OK (US)
Assigned to D&L Manufacturing, Inc., Tulsa, OK (US)
Filed by D&L Manufacturing, Inc., Tulsa, OK (US)
Filed on Dec. 15, 2023, as Appl. No. 18/542,149.
Application 18/542,149 is a continuation of application No. 17/534,141, filed on Nov. 23, 2021, granted, now 11,851,962.
Claims priority of provisional application 63/117,256, filed on Nov. 23, 2020.
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 23/06 (2006.01); E21B 33/12 (2006.01); E21B 33/128 (2006.01)
CPC E21B 23/06 (2013.01) [E21B 33/1216 (2013.01); E21B 33/128 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A downhole tool comprising:
at least one sealing member arranged to move between an unset and a set position,
a set/reset ring arranged to move between an unset diameter at least equal to the unset diameter of the at least one sealing member and a set diameter at least equal to the set diameter of the at least one sealing member, the set/reset ring including at least two full turns and having a 360° face surface when in its unset and set diameters; and
a setting mandrel arranged to move in a longitudinal direction toward and away from the at least one sealing member
wherein, the at least one sealing member and the set/reset ring are configured to move to the set diameter when the setting mandrel moves toward the at least one sealing member; and
wherein, the at least one sealing member and the set/reset ring are configured to return to the unset diameter when the setting mandrel moves away from the at least sealing member; and
wherein the unset diameter of the set/reset ring is in a range of 1/16 inch to ¼ inch greater than the unset diameter of the at least one sealing element.