Lubricating device
US6802394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Jan 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1502
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-contained automatic lubricator for automatically dispensing fluent lubricant over a period of time is provided. The lubricator comprises a cylinder having a front wall with a discharge outlet, a rear wall and cylindrical side walls. A piston is movable within the cylinder from a rear position to a forward position. The piston and the side and front walls of the cylinder define a variable volume chamber for containing the lubricant to be dispensed, and a spring for moving the piston from its rear position towards it front position to reduce the volume of the variable volume chamber over a period of time for expelling lubricant through the discharge outlet. The lubricator further comprises a controller including gearing and an escapement mechanism, for controlling the transfer of energy from the spring to the piston and an electrical element controlling operation of the escapement mechanism (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.