# US 10,865,541 B1 · Dipper handle assembly for a power shovel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,541 B1 - Document ID: US10865541B1 - Status: Granted - Kind: B1 - Application number: 16/743,802 - Filed: 2020-01-15 - Granted: 2020-12-15 - Earliest claimed: 2019-01-29 - Assignees: L&H Industrial, Inc. - Applicants: L & H Industrial, Inc. - Inventors: Jordan T. Rhodine; Nathanael S. Hecht - Web page: https://patentgrep.com/patent/US10865541B1 ## CPC - E02F 3/3677: {allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets} - E02F 3/38: Cantilever beams {, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms (for booms with cable suspension arrangements E02F9/14 takes precedence)}; Dipper-arms {, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms}; Bucket-arms {(E02F3/34 takes precedence)} - E02F 3/427: {with mechanical drives (by cables or hoisting ropes E02F3/46 take precedence)} - E02F 3/02: hand-operated {; handheld soil shifting equipment acting by sucking E02F3/8891 (spades or rakes for agriculture or gardening purposes A01B)} - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) ## Abstract A yoke for a dipper handle assembly used on a power shovel. The yoke is constructed at least in part of a transition portion and associated lugs manufactured of a forged material as opposed to castings. Accordingly, the yoke is less prone to failure and easy to repair in the field. ## Claims ### Claim 1 A dipper handle assembly, comprising: a tube with a first end and a second end; a yoke comprising: a transition portion interconnected to the first end of the tube, an upper plate interconnected to an outer end of the transition and generally coincident with an upper surface of the transition, a lower plate interconnected to an outer end of the transition and generally coincident with a lower surface of the transition, a wrapper plate interconnecting an outer end of the upper plate and an outer end of the lower plate, a substantially planar first side plate interconnected to a first lateral end of the upper plate, a first lateral end of the lower plate, and a first lateral end of the transition; a substantially planar second side plate interconnected to a second lateral end of the upper plate, a second lateral end of the lower plate, and a second lateral end of the transition; a first lug interconnected to a first lateral end of the wrapper plate, an outer end of the substantially planar first side plate, the outer end of the upper plate, and the outer end of the lower plate; a second lug interconnected to a second lateral end of the wrapper plate, an outer end of the substantially planar second side plate, the outer end of the upper plate, and the outer end of the lower plate; a first pitch brace lug interconnected to the lower plate; and a second pitch brace lug interconnected to the lower plate and spaced from the first pitch brace. ### Claim 2 (depends on 1) The assembly of claim 1, wherein the transition portion is made of forged material. ### Claim 3 (depends on 1) The assembly of claim 1, further comprising an insert positioned within the transition portion. ### Claim 4 (depends on 1) The assembly of claim 1, wherein the transition portion has an aperture therethrough. ### Claim 5 (depends on 4) The assembly of claim 4, further comprising a collar located about a portion of the transition portion, the collar being interconnected to the transition portion by a pin that interfaces with the aperture. ### Claim 6 (depends on 1) The assembly of claim 1, wherein the transition portion of the yoke is at least partially hollow. ### Claim 7 (depends on 1) The assembly of claim 1, wherein the wrapper plate is arcuate. ### Claim 8 A dipper handle assembly, comprising: a tube with a first end and a second end; a yoke comprising: a transition portion interconnected to the first end of the tube, an upper plate interconnected to an outer end of the transition, a lower plate interconnected to an outer end of the transition, a wrapper plate interconnecting an outer end of the upper plate and an outer end of the lower plate, a substantially planar first side plate interconnected to a first lateral end of the upper plate, a first lateral end of the lower plate, and a first lateral end of the transition, and a substantially planar second side plate interconnected to a second lateral end of the upper plate, a second lateral end of the lower plate, and a second lateral end of the transition; a first lug interconnected to a first lateral end of the wrapper plate, an outer end of the substantially planar first side plate, the outer end of the upper plate, and the outer end of the lower plate; and a second lug interconnected to a second lateral end of the wrapper plate, an outer end of the substantially planar second side plate, the outer end of the upper plate, and the outer end of the lower plate. ### Claim 9 (depends on 8) The assembly of claim 8, further comprising an insert positioned within the transition portion. ### Claim 10 (depends on 8) The assembly of claim 8, wherein the transition portion has an aperture therethrough. ### Claim 11 (depends on 10) The assembly of claim 10, further comprising a collar located about a portion of the transition portion, the collar being interconnected to the transition portion by a pin that interfaces with the aperture. ### Claim 12 (depends on 8) The assembly of claim 8, further comprising a first pitch brace lug interconnected to the lower plate; and a second pitch brace lug interconnected to the lower plate and spaced from the first pitch brace. ### Claim 13 (depends on 8) The assembly of claim 8, wherein the transition portion is made of forged material. ### Claim 14 A power shovel, comprising: a boom assembly; a saddle block interconnected to the boom assembly; and a dipper handle assembly operably interconnected to the saddle block, the dipper handle assembly comprising: a tube with a first end and a second end; and a yoke comprising: a transition portion interconnected to the first end of the tube, an upper plate interconnected to an outer end of the transition, a lower plate interconnected to an outer end of the transition, a wrapper plate interconnecting an outer end of the upper plate and an outer end of the lower plate, a substantially planar first side plate interconnected to a first lateral end of the upper plate, a first lateral end of the lower plate, and a first lateral end of the transition, and a substantially planar second side plate interconnected to a second lateral end of the upper plate, a second lateral end of the lower plate, and a second lateral end of the transition; a first lug interconnected to a first lateral end of the wrapper plate, an outer end of the substantially planar first side plate, the outer end of the upper plate, and the outer end of the lower plate; and a second lug interconnected to a second lateral end of the wrapper plate, an outer end of the substantially planar second side plate, the outer end of the upper plate, and the outer end of the lower plate. ### Claim 15 (depends on 14) The power shovel of claim 14, wherein the yoke further comprises a first pitch brace lug interconnected to the lower plate; a second pitch brace lug interconnected to the lower plate and spaced from the first pitch brace; and wherein the first lug and the second lug are operatively interconnected to an upper portion of a dipper bucket, and the first pitch brace and the second pitch brace are operatively interconnected to a bottom portion of the dipper bucket. ### Claim 16 (depends on 15) The assembly of claim 15, wherein the transition portion of the yoke has an aperture therethrough. ### Claim 17 (depends on 16) The assembly of claim 16, further comprising a collar located about a portion of the transition portion, the collar being interconnected to the transition portion by a pin that interfaces with the aperture. ### Claim 18 (depends on 15) The assembly of claim 15, wherein the transition portion of the yoke is made of forged material. ### Claim 19 (depends on 15) The assembly of claim 15, wherein the yoke is further comprised of an insert positioned within the transition portion.