US 12,448,874 B2
Perforating gun firing switch
James F. Shelton, Kennedale, TX (US)
Assigned to HARRISON JET GUNS II, L.P., Kennedale, TX (US)
Filed by HARRISON JET GUNS II, L.P., Kennedale, TX (US)
Filed on Feb. 7, 2024, as Appl. No. 18/435,485.
Claims priority of provisional application 63/445,803, filed on Feb. 15, 2023.
Prior Publication US 2024/0271508 A1, Aug. 15, 2024
Int. Cl. E21B 43/117 (2006.01); E21B 43/1185 (2006.01)
CPC E21B 43/117 (2013.01) [E21B 43/1185 (2013.01)] 20 Claims
OG exemplary drawing
 
11. A firing switch for a perforating gun, the firing switch comprising:
a disc-shaped body portion including a upper surface, a lower surface, and a plurality of openings extending therethrough, the disc-shaped body portion being formed from a non-conductive material and having an outer periphery;
a grounding collar extending around the outer periphery of the disc-shaped body portion, the grounding collar including a plurality of resilient fingers that extend in a radial direction and in an axial direction to engage a cylindrical opening;
a contact pin that extends from the disc-shaped body portion, wherein the plurality of openings in the disc-shaped body portion includes a first opening for a positive electrical polarity and includes a second opening for a negative electrical polarity; and
an addressable switch housing extending axially from the disc-shaped body portion.