# US 10,118,271 B2 · Alternative blocking > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,271 B2 - Document ID: US10118271B2 - Status: Granted - Kind: B2 - Application number: 15/125,149 - Filed: 2015-03-11 - Published: 2016-12-29 - Granted: 2018-11-06 - Earliest claimed: 2014-03-12 - Assignees: Rodenstock GmbH - Applicants: Rodenstock GmbH - Inventors: Karl Huber - Web page: https://patentgrep.com/patent/US10118271B2 ## CPC - B24B 13/005: Blocking means, chucks or the like; Alignment devices - B24B 13/02: by means of tools with abrading surfaces corresponding in shape with the lenses to be made - B24B 13/0055: {Positioning of lenses; Marking of lenses} - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS ## Abstract Device for blocking a spectacle lens blank that has a finished surface and a machining surface, situated opposite the finished surface, for machining in a machining device. The device includes a receiving component having a convex, planar or concave receiving surface for blocking the finished surface of the spectacle lens blank, wherein the receiving component has an essentially flat counter-surface that is arranged opposite the receiving surface, and wherein the normal of the counter-surface is inclined by 1° to 10° counter to the normal at the middle point of the receiving surface. ## Claims ### Claim 1 A device for blocking a spectacle lens blank that has a finished surface and a machining surface, situated opposite the finished surface, for machining in a machining device, with the device comprising: a receiver having a convex, planar or concave receiving surface configured to block the finished surface of the spectacle lens blank such that an entire surface of the spectacle lens blank is joined with the receiving surface of the receiver, wherein the receiver has an essentially flat counter-surface that is arranged opposite the receiving surface, wherein the normal of the counter-surface is inclined by 1° to 10° counter to the normal at the middle point of the receiving surface. ### Claim 2 (depends on 1) The device according to claim 1, further comprising: a bearer having an essentially flat and inclined bearing surface relative to a machining axis of the bearer on which the receiver, which has a counter-surface, can be borne. ### Claim 3 (depends on 2) The device according to claim 2, wherein the bearing surface is inclined in a machining position so that the normal of the bearing surface is inclined by 1° to 10° relative to the predetermined machining axis of the bearer. ### Claim 4 (depends on 3) The device according to claim 3, wherein the receiver and the bearer are designed to be rotatable counter to one another so that the normal at the middle point of the receiving surface is arranged to be parallel with or at an incline relative to the machining axis of the bearer, and wherein a magnitude of the incline depends on a rotation position of the receiver relative to the bearer. ### Claim 5 (depends on 4) The device according to claim 4, wherein an inclination angle between the normal at the middle point of the receiving surface relative to the machining axis can be set from 0° to 20° via the rotation position of the receiver relative to the bearer. ### Claim 6 (depends on 2) The device according to claim 2, wherein the normal of the counter-surface is inclined by the same angle, counter to the normal at the middle point of the receiving surface, as the normal of the bearing surface relative to the machining axis of the bearer. ### Claim 7 (depends on 2) The device according to claim 2, wherein the receiver and the bearer are joinable with one another positively or non-positively. ### Claim 8 (depends on 2) The device according to claim 2, wherein the bearer is designed as a separate component. ### Claim 9 (depends on 2) The device according to claim 2, wherein the bearing surface of the bearer is designed as an integral component of the machining device. ### Claim 10 (depends on 1) The device according to claim 1, wherein the receiver is made of an easily machinable material. ### Claim 11 (depends on 1) The device according to claim 1, wherein the receiver is designed in the form of a concave spherical calotte. ### Claim 12 (depends on 1) The device according to claim 1, wherein, upon blocking the spectacle lens blank, the spectacle lens blank is machined by removing material from the receiver and the spectacle lens blank at the same time. ### Claim 13 (depends on 1) The device according to claim 1, wherein the normal at the middle point of the receiving surface, a machining axis of the bearer, and a finished surface of the spectacle lens blank have a common intersection point. ### Claim 14 (depends on 1) The device according to claim 1, wherein the spectacle lens blank is joined with the receiving surface of the receiver so as to be releasable, via gluing, adhesive tape, adhesion, at least one chemically curable material or via at least one material by means of a phase transition from liquid to solid. ### Claim 15 A method for blocking a spectacle lens blank that has a finished surface and a machining surface, situated opposite the finished surface, for machining in a machining device, the method comprising: placing an essentially flat counter-surface of a receiver having a convex, planar or concave receiving surface onto an essentially flat and inclined bearing surface of a bearer, rotating the receiver relative to the bearer until the normal at the middle point of the receiving surface is inclined to be at an angle (α+β) relative to a machining axis of the bearer, and blocking a spectacle lens blank on the receiving surface such that, upon blocking the spectacle lens blank, an entire surface of the spectacle lens blank is joined with the receiving surface of the receiver. ### Claim 16 (depends on 15) The method according to claim 15, wherein the spectacle lens blank is joined with the receiving surface of the receiver so as to be releasable, via gluing, adhesive tape, adhesion, at least one chemically curable material or via at least one material by means of a phase transition from liquid to solid. ### Claim 17 (depends on 15) The method according to claim 15, further comprising: machining the spectacle lens blank by removing material from the receiver and the spectacle lens blank at the same time. ### Claim 18 (depends on 15) The method according to claim 15, wherein the normal at the middle point of the receiving surface, a machining axis of the bearer, and a finished surface of the spectacle lens blank have a common intersection point.