# US 2026/0233431 A1 · Slab cutting system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0233431 A1 - Document ID: US20260233431A1 - Status: Published application - Kind: A1 - Application number: 19/155,818 - Filed: 2024-01-22 - Published: 2026-08-13 - Earliest claimed: 2023-02-13 - Assignees: Raimondi S.P.A. - Applicants: Raimondi S.P.A. - Inventors: Riccardo SIGHINOLFI - Web page: https://patentgrep.com/patent/US20260233431A1 ## CPC - B28D 1/225: {for scoring or breaking, e.g. tiles} - B28D 7/046: {the supporting or holding device being of the vacuum type} - F16B 47/006: {the suction cups being activated by the rotation of a cranked lever arm} - B28D: WORKING STONE OR STONE-LIKE MATERIALS - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract A slab cutting system (10) comprising: —at least one support (20) configured to rest on a slab (L) to be cut and provided with at least one sliding rail (212) developing along a longitudinal axis (A); —at least one engraving slider (50) provided with at least one engraving wheel (52) rotatable about an axis of rotation orthogonal to the longitudinal axis (A); wherein the engraving slider (50) comprises a connecting assembly (55) interconnecting the engraving slider (50) and the sliding rail (212) for sliding the engraving slider (50) relative to the sliding rail (212) along the longitudinal axis (A) thereof, wherein the connecting assembly (55) comprises at least one first connecting element (551) configured to contact a first contact portion of the sliding rail (212) and at least one second connecting element (552) opposite to the first connecting element (551) and configured to contact a second contact portion of the same sliding rail (212) opposite to the first contact portion in contact with the first connecting element (551), wherein the at least one of the first connecting element (551) and the second connecting element (552) comprises at least one rolling body configured to roll on the sliding rail (212). ## Claims ### Claim 1 A slab cutting system comprising: at least one support configured to rest on a slab to be cut and provided with at least one sliding rail developing along a longitudinal axis; at least one engraving slider provided with at least one engraving wheel rotatable about an axis of rotation orthogonal to the longitudinal axis; wherein the engraving slider comprises a connecting assembly interconnecting the engraving slider and the sliding rail for sliding the engraving slider relative to the sliding rail along the longitudinal axis thereof, wherein the connecting assembly comprises at least one first connecting element configured to contact a first contact portion of the sliding rail and at least one second connecting element opposite to the first connecting element and configured to contact a second contact portion of the same sliding rail opposite to the first contact portion in contact with the first connecting element, wherein the at least one of the first connecting element and the second connecting element comprises at least one rolling body configured to roll on the sliding rail. ### Claim 2 (depends on 1) The system according to claim 1, wherein the connecting assembly interconnects the engraving slider and the single sliding rail, and wherein the connecting assembly defines a shape constraint with the single sliding rail configured to allow an axial sliding of the engraving slider along the longitudinal axis of the sliding rail and to prevent translations of the engraving slider in any direction orthogonal to the longitudinal axis of the sliding rail. ### Claim 3 (depends on 2) The system according to claim 2, wherein the shape constraint is configured to allow an oscillation around the longitudinal axis of the sliding rail. ### Claim 4 (depends on 1) The system according to claim 1, wherein at least one of the first connecting element and the second connecting element is configured to at least partially embrace the sliding rail. ### Claim 5 (depends on 1) The system according to claim 1, wherein the axis of rotation of the engraving wheel is fixed with respect to the engraving slider. ### Claim 6 (depends on 1) The system according to claim 1, wherein one of the second connecting element and the first connecting element comprises a sliding shoe configured to drag on the sliding rail, wherein preferably the sliding shoe comprises a concave profile or a flat profile for contact on the sliding rail. ### Claim 7 (depends on 1) The system according to claim 1, wherein both the second connecting element and the first connecting element comprise at least one rolling body configured to roll on the sliding rail, about rolling axes orthogonal to the longitudinal axis of the sliding rail and, preferably, parallel to each other. ### Claim 8 (depends on 1) The system according to claim 1, wherein the rolling body comprises at least one concave-profile wheel or one flat-profile wheel for contact on the sliding rail. ### Claim 9 (depends on 1) The system according to claim 1, wherein at least one of the first connecting element and the second connecting element is movable closer to and/or away from the other of the second connecting element and the first connecting element, for adjusting a gripping force on the sliding rail. ### Claim 10 (depends on 9) The system according to claim 9, wherein the engraving slider comprises adjustment means configured to adjust and lock the mutual distance between the first connecting element and the second connecting element and/or the gripping force on the sliding rail thereof. ### Claim 11 (depends on 1) The system according to claim 1, wherein the rolling body comprises at least one ball or a row of balls, wherein preferably the connecting assembly and/or at least one of the first connecting element and the second connecting element comprises a re-circulating ball bearing. ### Claim 12 (depends on 1) The system according to claim 1, wherein the support is formed by at least one longitudinal guide bar and the sliding rail preferably develops over the entire longitudinal development of the guide bar, wherein preferably the sliding rail has a constant cross-section throughout its development, even more preferably substantially circular. ### Claim 13 (depends on 12) The system according to claim 12, comprising a plurality of guide bars and interconnecting means configured to releasably interconnect two consecutive and coaxial guide bars to each other. ### Claim 14 (depends on 1) The system according to claim 1, wherein at least one suction cup is connected to the support for the temporary and releasable fixing of the support to the slab. ### Claim 15 (depends on 14) The system according to claim 14, wherein the suction cup comprises a plate from which a traction stem and an abutment cup are derived, wherein the abutment cup is defined as integral or rigidly fixed to a lower surface of the support intended to face the slab. ### Claim 16 (depends on 15) The system according to claim 15, wherein at least one of the plate and the abutment cup comprises an element overlooking towards the slab and configured to forcibly contact the slab and facilitate the detachment of the plate from the slab, exerting a thrust away from it, when the plate is brought into an undeformed release configuration. ### Claim 17 (depends on 1) The system according to claim 1, wherein the substrate comprises a lower surface intended to face the slab, wherein the lower surface comprises at least one rest foot, preferably a single rest foot arranged on one side of the substrate proximal to the engraving wheel of the engraving slider or a pair of rest feet arranged on opposite sides of the substrate, wherein the rest foot is preferably made of a yielding and/or elastic and/or adhesive material or other material configured to grip the slab without damaging it. ### Claim 18 (depends on 17) The system according to claim 17, wherein the rest foot is elongated and has a longitudinal development parallel to the longitudinal axis of the sliding rail, wherein preferably the longitudinal development of the rest foot is continuous and equal to the longitudinal development of the sliding rail or, preferably in the case where a pair of rest feet is present, one of the two rest feet, advantageously the one distal from the engraving wheel of the engraving slider, is discontinuous in segments and extends over the entire longitudinal development of the sliding rail unless there are contained segments of discontinuity. ### Claim 19 (depends on 14) The system according to claim 14, wherein the suction cup comprises a slab gripping plate which has at least one portion protruding externally, preferably laterally, from the support, for example said protruding portion comprising a tab for gripping and detaching the plate from the slab. ### Claim 20 (depends on 1) The system according to claim 1, wherein the engraving slider comprises a handle, wherein the handle comprises at least one of a knob and an anatomical housing for gripping and/or housing by a user's hand, wherein the handle is made in a separate body and attached to the engraving slider or is made in a single body with it.