The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2025
Filed:
Feb. 17, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Garrold A. DeGrace, Frankenmuth, MI (US);
Sheri K. Kurgin, Macomb Township, MI (US);
Daniel T. Berry, South Lyon, MI (US);
Kirk R. Frame, Clarkston, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A system for heat treating cylinder bores within an engine includes a laser head and a controller adapted to cause the laser head to move to each cylinder bore and create a first plurality of hardened pills within each one of a first plurality of positional zones, cause the laser head to move to each cylinder bore and create a second plurality of hardened pills within each one of the first plurality of positional zones, cause the laser head to move to each cylinder bore and create a first plurality of hardened pills within each one of a second plurality of positional zones, cause the laser head to move to each cylinder bore and create a second plurality of hardened pills within each one of the second plurality of positional zones.