Bimetallic shaft for gearbox systems to limit wear and corrosion
US8721462B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2013 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Mar 11, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C3/023
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bimetallic shaft for use in gearbox applications wherein the member of shaft that protrudes from the gearbox is designed and constructed from a corrosion-resistant metallic compound to prevent corrosion and wear to exposed shaft material. A gearbox comprising a bimetallic shaft having a corrosion-resistant material on the portion of the bimetallic shaft that protrudes from a gearbox housing, wherein a gearbox shaft seal radially surrounds the bimetallic shaft. A method of providing a bimetallic gearbox shaft comprising: a first shaft member comprising a non-corrosion-resistant material and having a first shaft axis, a second shaft member comprising a corrosion-resistant material and having a second shaft axis, and a joint that permanently affixes the first shaft member to the second shaft member such that the first shaft axis is aligned with the second shaft axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.