Delivering and metering grease to process valves
US11873945B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2020 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Nov 1, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2270/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
System, apparatus, and method for delivering grease to process valve(s). The system generally includes a grease cylinder to which grease is delivered, a piston, an actuator, and a first process valve. The piston extends at least partially within the grease cylinder. The actuator strokes the piston within the grease cylinder to meter a first amount of the delivered grease to the first process valve. The actuator comprises a power cylinder within which the piston extends. The piston comprises a head portion slidably disposed in the power cylinder and dividing the power cylinder into first and second chambers. The head portion has a first cross-sectional area. The piston includes another portion contacting the grease in the grease cylinder and having a second cross-sectional area smaller than the first cross-sectional area. The actuator may also meter a second amount of the delivered grease to a second process valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.