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US 12,654,255 B2Granted
High speed laser processes for marking on articles
AssigneeThe Procter & Gamble Company
InventorsJoseph Craig Lester, Marc Andrew Mamak, Joseph Henry Nurre, Anthony Ogg, Philip Andrew Sawin
Life of this patent
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Abstract
Laser marked articles having a predetermined feature marked onto a wall that is either user readable, machine readable, or both. Also, methods of making the marked articles by laser marking.
Claims19
An article having a surface marked by a pulsed laser comprising a predetermined grid pattern:
- wherein the predetermined pattern comprises text, wherein the text comprises alphanumeric characters;
- wherein the grid pattern comprises a plurality of locations positioned in two or more rows, wherein the two or more rows are parallel, each adjacent pair of locations of the plurality of locations along any of the two or more rows is separated by an X-distance and each adjacent pair of the two or more rows is separated by a Y-distance;
- wherein consecutive marks are formed in the predetermined pattern by constant surface velocity (CV) bitmap marking and wherein a beam of the pulsed laser moves across the rows at a constant surface velocity greater than 8 m/s as the consecutive marks are formed;
- and,
- wherein the alphanumeric characters comprising the text has a Y-Distance standard deviation less than 0.040.
2 more elements
An article having a surface marked by a pulsed laser comprising a predetermined grid pattern:
- wherein the predetermined pattern comprises text, wherein the text comprises alphanumeric characters;
- wherein the grid pattern comprises a plurality of locations positioned in two or more rows, wherein the two or more rows are parallel, each adjacent pair of locations of the plurality of locations along any of the two or more rows is separated by an X-distance and each adjacent pair of the two or more rows is separated by a Y-distance;
- wherein consecutive marks are formed in the predetermined pattern by constant surface velocity (CV) bitmap marking and wherein a beam of the pulsed laser moves across the rows at a constant surface velocity greater than 8 m/s as the consecutive marks are formed;
- and,
- wherein the alphanumeric characters comprising the text have an Average % Displacement less than 150.
2 more elements
Dependencies are inferred from the claim text.