# US 12,184,049 B2 · Cable gland with compression limiting assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,049 B2 - Document ID: US12184049B2 - Status: Granted - Kind: B2 - Application number: 17/805,527 - Filed: 2022-06-06 - Published: 2022-12-15 - Granted: 2024-12-31 - Earliest claimed: 2021-06-11 - Assignees: Eaton Intelligent Power Limited - Applicants: Eaton Intelligent Power Limited - Inventors: Rajendra Pawar; Himanshu Gangadhar Khokle - Web page: https://patentgrep.com/patent/US12184049B2 ## CPC - H02G 3/0675: {with bolts operating in a direction parallel to the conductors} - H02G 15/04: Cable-end sealings - H02G 3/0658: {with means constricting the conductor-insulation (H02G3/065, H02G3/0675, H02G3/0683 take precedence)} - H02G 3/0666: {with means clamping the armour of the conductor (H02G3/0675, H02G3/0683 take precedence)} - H02G 15/007: Devices for relieving mechanical stress - H02G 15/013: Sealing means for cable inlets (inlets for cables filled with, or surrounded by, gas or oil H02G15/32) - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES ## Abstract A cable gland includes a gland nut defining a longitudinal axis. The gland nut includes an interior wall defining a gland nut opening. A bushing is disposed within the gland nut. The bushing defines a bushing opening configured to receive a cable therein. A compression limiting assembly includes a compression limiter moveably disposed at least partially within the gland nut. A spring is disposed between the compression limiter and the bushing. A body defines a body opening configured to receive at least a portion of the cable therein. The body is configured to couple to the gland nut. Upon coupling of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing between the gland nut and the compression limiting assembly and around the cable. ## Claims ### Claim 1 A cable gland comprising: a gland nut defining a longitudinal axis, the gland nut comprising an interior wall defining a gland nut opening; a bushing disposed within the gland nut, wherein the bushing is compressible and defines a bushing opening configured to receive a cable therein; a compression limiting assembly comprising a compression limiter moveably disposed at least partially within the gland nut, and a spring disposed between the compression limiter and the bushing; and a body defining a body opening configured to receive at least a portion of the cable therein, the body configured to couple to the gland nut, wherein upon coupling of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing between the gland nut and the compression limiting assembly and around the cable; wherein the interior wall of the gland nut defines a first portion having threads and a second portion being free of threads, the spring being disposed entirely in the second portion of the gland nut, and wherein the second portion includes a first diameter section and a second diameter section, the second diameter section having a diameter that is smaller than a diameter of the first diameter section, at least a portion of the spring being disposed in the second diameter section. ### Claim 2 (depends on 1) The cable gland of claim 1, wherein the spring comprises a stacked wave spring. ### Claim 3 (depends on 2) The cable gland of claim 2, wherein the stacked wave spring comprises a plurality of spring components disposed on top of each other. ### Claim 4 (depends on 3) The cable gland of claim 3, wherein each spring component comprises a plurality of waves extending around the spring component. ### Claim 5 (depends on 4) The cable gland of claim 4, wherein the waves of a first of said spring components are offset from the waves of a second of said spring components adjacent to the first spring component. ### Claim 6 (depends on 4) The cable gland of claim 4, wherein the waves of a first spring component are nested within the waves of a second of said spring components adjacent to the first spring component. ### Claim 7 (depends on 1) The cable gland of claim 1, wherein the spring has a height of less than about 0.25 inches. ### Claim 8 (depends on 1) The cable gland of claim 1, further comprising a grounding mechanism disposed within the body opening. ### Claim 9 (depends on 8) The cable gland of claim 8, wherein the grounding mechanism comprises a spring configured to ground and/or retain the cable. ### Claim 10 (depends on 1) The cable gland of claim 1, wherein the compression liming assembly and the bushing are secured within the gland nut opening such that the cable gland is a two-piece design. ### Claim 11 (depends on 1) The cable gland of claim 1, wherein the spring is formed from steel. ### Claim 12 A cable gland comprising: a body configured to receive at least a portion of a cable; a grounding mechanism disposed at least partially in the body; a gland nut configured to receive at least a portion of the cable and removably couple to the body; a compressible bushing disposed in the gland nut; and a stacked wave spring disposed in the gland nut between the compressible bushing and the grounding mechanism, wherein upon coupling of the gland nut to the body, the stacked wave spring is configured to limit compression of the compressible bushing; wherein an interior wall of the gland nut defines a first portion having threads and a second portion being free of threads, the spring being disposed entirely in the second portion of the gland nut, and wherein the second portion includes a first diameter section and a second diameter section, the second diameter section having a diameter that is smaller than a diameter of the first diameter section, at least a portion of the spring being disposed in the second diameter section. ### Claim 13 (depends on 12) The cable gland of claim 12, wherein the stacked wave spring comprises a plurality of spring components disposed on top of each other. ### Claim 14 (depends on 13) The cable gland of claim 13, wherein each spring component comprises a plurality of waves extending around the spring component. ### Claim 15 (depends on 14) The cable gland of claim 14, wherein the waves of a first spring component are offset from the waves of a second of said spring components adjacent to the first spring component. ### Claim 16 (depends on 14) The cable gland of claim 14, wherein the waves of a first spring component are nested within the waves of a second of said spring components adjacent to the first spring component. ### Claim 17 (depends on 12) The cable gland of claim 12, wherein the stacked wave spring has a height of less than about 0.25 inches. ### Claim 18 (depends on 12) The cable gland of claim 12, wherein the grounding mechanism comprises a spring configured to ground and/or retain the cable. ### Claim 19 (depends on 12) The cable gland of claim 12, wherein the stacked wave spring is formed from steel. ### Claim 20 A cable gland comprising: a gland nut defining a longitudinal axis, the gland nut comprising an interior wall defining a gland nut opening; a bushing disposed within the gland nut, wherein the bushing is compressible and defines a bushing opening configured to receive a cable therein; a body defining a body opening configured to receive at least a portion of the cable therein, the body configured to couple to the gland nut, wherein upon coupling of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing around the cable; and a compression limiting assembly disposed at least partially within the gland nut and configured to maintain a constant contact pressure between the cable gland and the cable, the compression limiting assembly comprising a compression limiter moveably disposed at least partially within the gland nut, and a spring disposed between the compression limiter and the bushing; wherein the interior wall of the gland nut defines a first portion having threads and a second portion being free of threads, the spring being disposed entirely in the second portion of the gland nut, and wherein the second portion includes a first diameter section and a second diameter section, the second diameter section having a diameter that is smaller than a diameter of the first diameter section, at least a portion of the spring being disposed in the second diameter section.