# US 11,028,661 B2 · Fishing neck for plunger > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,661 B2 - Document ID: US11028661B2 - Status: Granted - Kind: B2 - Application number: 16/548,168 - Filed: 2019-08-22 - Published: 2021-02-25 - Granted: 2021-06-08 - Earliest claimed: 2019-08-22 - Assignees: Tri-Lift Services, Inc. - Applicants: Tri-Lift Services, Inc. - Inventors: Kevin Kegin - Web page: https://patentgrep.com/patent/US11028661B2 ## CPC - E21B 31/20: gripping internally, e.g. fishing spears - E21B 31/18: gripping externally, e.g. overshot - F04B 47/12: having free plunger lifting the fluid to the surface - E21B 43/121: {Lifting well fluids (monitoring of down-hole pump systems E21B47/008)} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) ## Abstract A fishing neck for a plunger comprises a head portion, a neck portion, a lower portion, and a plurality of ribs. The head portion has a cylindrical configuration with an outer peripheral surface and an outer diameter. The neck portion also has a cylindrical configuration with an outer peripheral surface and an outer diameter, but the outer diameter is less than the outer diameter of the head portion. The neck portion extends from the head portion. The lower portion extends from the neck portion, which is opposite the head portion, and is connectable to a plunger. The lower portion has an outer diameter greater than the outer diameter of the neck portion. A plurality of ribs projects from the outer peripheral surface of the neck portion and extends helically from the head portion to the lower portion. ## Claims ### Claim 1 A fishing neck for a plunger, comprising: a head portion having a cylindrical configuration with an outer peripheral surface and an outer diameter; a neck portion having a cylindrical configuration with an outer peripheral surface and an outer diameter less than the outer diameter of the head portion, the neck portion extending from the head portion; a lower portion extending from the neck portion opposite the head portion, the lower portion connectable to a plunger and having an outer diameter greater than the outer diameter of the neck portion; and a plurality of ribs projecting from the outer peripheral surface of the neck portion and extending helically from the head portion to the lower portion. ### Claim 2 (depends on 1) The fishing neck of claim 1, wherein the ribs are equally spaced circumferentially about the neck portion. ### Claim 3 (depends on 1) The fishing neck of claim 1, wherein each of the ribs is coextensive with a portion of the outer peripheral surface of the head portion. ### Claim 4 (depends on 3) The fishing neck of claim 3, wherein the ribs are equally spaced circumferentially about the neck portion. ### Claim 5 (depends on 4) The fishing neck of claim 4, wherein the plurality of ribs is at least three ribs. ### Claim 6 (depends on 1) The fishing neck of claim 1, wherein the lower portion has a cylindrical configuration with an outer peripheral surface, and wherein each of the ribs is coextensive with a portion of the outer peripheral surface of the head portion and a portion of the outer peripheral surface of the lower portion. ### Claim 7 (depends on 5) The fishing neck of claim 5, wherein the ribs are equally spaced circumferentially about the neck portion. ### Claim 8 (depends on 7) The fishing neck of claim 7, wherein the plurality of ribs is at least three ribs. ### Claim 9 (depends on 1) The fishing neck of claim 1, wherein each of the head portion, the neck portion, and lower portion has a bore extending therethrough. ### Claim 10 (depends on 9) The fishing neck of claim 9, where the bore of the head portion is threaded, and wherein the fishing neck further comprises a plug positioned in the bore of the head portion and threadingly connected thereto. ### Claim 11 (depends on 1) The fishing neck of claim 1, wherein an upper edge of the head portion is beveled. ### Claim 12 A fishing neck in combination with a plunger, the plunger have an upper end and a lower end, the fishing neck comprising: a head portion having a cylindrical configuration with an outer peripheral surface and an outer diameter; a neck portion having a cylindrical configuration with an outer peripheral surface and an outer diameter less than the outer diameter of the head portion, the neck portion extending from the head portion; a lower portion extending from the neck portion opposite the head portion, the lower portion connected to the upper end of the plunger and having an outer diameter greater than the outer diameter of the neck portion; and a plurality of ribs projecting from the outer peripheral surface of the neck portion and extending helically from the head portion to the lower portion. ### Claim 13 (depends on 12) The combination of claim 12, wherein the ribs are equally spaced circumferentially about the neck portion. ### Claim 14 (depends on 12) The combination of claim 12, wherein each of the ribs is coextensive with a portion of the outer peripheral surface of the head portion. ### Claim 15 (depends on 14) The combination of claim 14, wherein the ribs are equally spaced circumferentially about the neck portion. ### Claim 16 (depends on 15) The combination of claim 15, wherein the plurality of ribs is at least three ribs. ### Claim 17 (depends on 12) The combination of claim 12, wherein the lower portion has a cylindrical configuration with an outer peripheral surface, and wherein each of the ribs is coextensive with a portion of the outer peripheral surface of the head portion and a portion of the outer peripheral surface of the lower portion. ### Claim 18 (depends on 17) The combination of claim 17, wherein the ribs are equally spaced circumferentially about the neck portion. ### Claim 19 (depends on 18) The combination of claim 18, wherein the plurality of ribs is at least three ribs. ### Claim 20 (depends on 12) The combination of claim 12, wherein each of the head portion, the neck portion, and lower portion has a bore extending therethrough.