Precision liquid injection system
US6263778A · kind A · utility
10Cited by
28References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1998 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Nov 3, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B9/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A liquid injector comprising a tubular spindle having an open end and a partially closed end, a cylindrical piston, a seal mechanism between the spindle and the piston, a tubular driver sleeve to cause the piston to move towards the spindle closed end, and an internal ratchet mechanism located between the piston and a closed end of the tubular driver sleeve for controlling the degree of rotation of the driver sleeve and providing a positive indication of driver sleeve rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.