# US 6,293,600 B1 · Articulated ring for lifting loads > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,293,600 B1 - Document ID: US6293600B1 - Status: Granted - Kind: B1 - Application number: 09/605,079 - Filed: 2000-06-28 - Granted: 2001-09-25 - Earliest claimed: 1999-07-09 - Assignees: S.H.B.L. - Inventors: Marc Lecourt - Web page: https://patentgrep.com/patent/US6293600B1 ## CPC - B66C 1/66: for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof - Y10T 403/32213: Articulate joint is a swivel - Y10T 403/32975: Rotatable - B66C: CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES ({specially adapted for lifting invalids A61G7/10;} rope, cable, or chain winding mechanisms, braking or detent devices therefor B66D; specially adapted for nuclear reactors G21) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to an articulated ring for lifting loads, specifically through the attachment of a ring or rings to the load in such a way that the longitudinal axis of the ring and the direction of lifting form an angle of 0 to 90 degrees between them, comprising an attachment stud (13) designed to be assembled with one extremity bolted to the load being lifted and a ring (11, 12) moveable with respect to the stud (13) at the other extremity of the stud (13), the stud (13) being an anchor bolt having a head. A bushing (15) is provided with a flange (16) at one extremity, the flange extremity (16) being, in the assembled state, distant from the head of the anchor bolt (13). An attachment (14, 31) to attach the ring (11, 12) is provided and adapted to be pushed onto the bushing (15) and to attach the ring (11, 12) moveably to the bolt (13) and maintain it in position in cooperation with the flange (16) of the bushing (15). ## Claims ### Claim 1 An articulated ring for lifting loads, through attachment of a ring or rings to the load in such a way that the longitudinal axis of the ring and the lift direction form an angle of 0° to 90° between them, comprising an attachment stud (13) designed to be assembled with one extremity attached to a load in a threaded manner and a ring (11, 12), moveable with respect to said stud (13), at the other extremity of said stud (13), characterized in that said stud (13) is an anchor bolt having a head; a bushing (15) is provided that can be shrink-fit or screwed onto said bolt (13) and equipped with a flange (16) at one extremity, the flange (16) extremity being, in its assembled state, distal from the head of the anchor bolt (13); and fixation means (14, 31) to fasten said ring (11, 12) is provided and adapted so it can be pushed onto said bushing (15) and fasten said ring (11, 12) moveably to said bolt (13) and maintain it in place in cooperation with said flange (16) of said bushing (15) wherein said fixation means (14, 31) touches said anchor bolt head in the assembled state. ### Claim 2 (depends on 1) Articulated ring for lifting loads according to claim 1, characterized in that said ring (11, 12) is a ring open at two free, opposed extremities (18, 19); and said fastening means (14, 31) of said ring (11, 12) is a sleeve (14) adapted to be pushed onto said bushing (15) and to receive the two extremities (18, 19) of said ring (11, 12) in order to maintain it in place in cooperation with said flange (16) of said bushing (15). ### Claim 3 (depends on 2) Articulated ring according to claim 2, characterized in that the extremity of said sleeve (14) touching said flange (16) is provided with two diametrically opposed notches (17) to accept a free extremity (18, 19) of said ring (11, 12). ### Claim 4 (depends on 3) Articulated ring according to claim 3, characterized in that the free extremities (18, 19) of said ring (11, 12) are each provided with a head (25) retained in a hollow (26) in the lower surface of the sleeve (14) around corresponding notch (17) and a circular groove (27) in the lower surface (24) of said flange. ### Claim 5 (depends on 2) Articulated ring according to claim 2 characterized in that there is a spline joint (23) and groove (22) between said flange (16) of said bushing and the extremity adjacent to said sleeve (14). ### Claim 6 (depends on 2) Articulated ring according to claim 2, characterized in that a centering device (29) is provided on the outer surface (30) of said flange (16). ### Claim 7 (depends on 2) Articulated ring according to claim 2 characterized in that said ring (11, 12) is an eye ring. ### Claim 8 (depends on 2) Articulated ring according to claim 2, characterized in that said ring (11, 12) is a bar ring whose inner edge is sloped. ### Claim 9 (depends on 8) Articulated ring according to claim 8, characterized in that the width of said ring (12) at the position of the bar is reduced in such a way that, from the point of attachment of said bar, the branches of said ring (12) widen toward the summit of said ring. ### Claim 10 (depends on 2) Articulated ring according to claim 2, characterized in that the head of said bolt (13) has six outside faces (20). ### Claim 11 (depends on 2) Articulated ring according to claim 2, characterized in that the head of said bolt (13) has six inside faces (21). ### Claim 12 (depends on 1) Articulated ring according to claim 1, characterized in that there is a chain link (31) that cooperates with said moveable ring (11, 12), the axis of said stud (13) being within the plane of said link (31). ### Claim 13 (depends on 1) Articulated ring according to claim 1, characterized in that said fixation means (14, 31) is formed by a flattened sector (31) of said ring (11) provided with a bore hole (32) designed to be pushed onto said bushing (15) and equipped with corresponding hollows (33, 35) around the extremities of said bore hole (32) to receive either said flange (16) or said head in such a way as to afford rotation about said bushing (15) when the articulated ring and load are assembled. ### Claim 14 (depends on 13) Articulated ring according to claim 13, characterized in that there is a diamond-shaped bead (43) in the middle of said ring. ### Claim 15 (depends on 13) Articulated ring according to claim 13, characterized in that said head has six exterior faces (39). ### Claim 16 (depends on 13) Articulated ring according to claim 13, characterized in that there is a centering device (29) on the exterior (30) of said flange (16). ### Claim 17 (depends on 13) Articulated ring according to claim 13, characterized in that said ring (11) is an eye ring whose interior perimeter widens from the summit of the eye in the direction of said flattened sector (31), with its maximum extension at the location of said flattened sector (31). ### Claim 18 (depends on 13) Articulated ring according to claim 13, characterized in that said head has six interior faces (38). ### Claim 19 An articulated ring assembly for lifting load comprising: an anchor bolt having a threaded portion and a head; a flanged bushing which overlies and is rigidly affixed to said threaded bolt portion adjacent said head and wherein said flanged bushing has a flange distal from the head of the anchor bolt; a bored sleeve which overlies said bushing positioned adjacent said anchor bolt head wherein said sleeve is rotatable about said bushing; and a ring having a pair of extremities secured between said rotatable sleeve and said fixed bushing flange such that said ring is fixedly rotatable about the longitudinal axis of said anchor bolt and is pivotal from 0° to 90° about an axis perpendicular to the longitudinal axis of said anchor bolt to enable said ring to be secured to the top of a load or to a lateral side of a load. ### Claim 20 (depends on 19) The articulated ring of claim 19 characterized in that a pair of diametrically opposed notches are formed in the extremity of said sleeve adjacent said flange; each said notches adapted to receive an extremity of said ring. ### Claim 21 (depends on 19) The articulated ring of claim 19 further characterized by a cylindrical centering element mounted on said anchor bolt adjacent said bushing flange. ### Claim 22 (depends on 19) The articulated ring of claim 19 wherein an enlarged head is formed on each of said ring extremities; a first groove is formed in a surface on said flange; a second groove is formed in a surface on said sleeve facing said first groove; and said heads of said ring extremities are retained in said first and second grooves.