Method of producing a slip-resistant substrate by depositing raised, bead-like configurations of a compatible material at select locations thereon, and a substrate including same
US5368947A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12146
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An article having a slip-resistant surface and method of producing the same includes metallurgically bonding raised bead-like configurations of a compatible material at select locations on the article surface. The method includes injecting, substantially simultaneously with projecting a high power radiant energy beam, powder particles into a portion of the beam lying a distance away from the point of impingement on the surface portion of the article. The particles interact with the beam for a time period sufficient to cause at least partial melting of a substantial number of particles which are then transported to a selected point on the surface portion. The partially melted particles, along with completely and/or any substantially unmelted particles, are allowed to bond with the surface material thereby forming a raised configuration thereon. The process is repeated for forming another raised configuration at another selected location on the surface portion for thereby forming a slip-resistant article. The configurations include an upright portion of substantially all sintered particles and extending a substantial distance above the surface portion, and an anchor portion which is …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.