Method of making hydralic tubing
US9365944B2 · kind B2 · utility
0Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | May 23, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L58/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In a method for making hydraulic tubing a low carbon steel tube suitable for use as hydraulic tubing is coated on its inside surface with zinc phosphate and the outside surface is electroplated. The resulting hydraulic tubing will resist rust on the inside and on the outside during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.