Lubrication reservoir for lead screw assembly
US9964201B2 · kind B2 · utility
7Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Sep 15, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2075
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A nut driven by a lead screw and stepper motor has an internal concave recess for holding high viscosity grease that is semi-solid at ambient temperature and spaced from the lead screw. Grease flow ensues with lead screw motion causing a slow flow of grease coating the lead screw with a thin coating of grease as the nut travels back and forth over the lead screw. The nut may be an anti-backlash nut or a single member nut with both having a concave recess about the lead screw for the grease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.