Fluid proportioner
US6485272B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B13/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved fluid proportioner. For improved fluid flow, a body is configured to direct a first fluid wherein at least one fluid gate housing is removably fixed to the body. A bearing pressurably is fitted within the at least one fluid gate housing to seal the first fluid within the body. A fluid gate is disposed within the body configured to gate the first fluid to alternating sides of a motor cylinder having a motor piston sealably disposed within. The motor piston has a cap attached at an end wherein the cap has a concave annular groove. A seal is surroundably disposed around the concave annular groove which radially extends beyond the cap to pressurably engage against the motor cylinder to reduce friction. A slave pump has a inlet valve and a outlet valve with an inlet raised base formed around an inlet orifice and an outlet raised base formed around an outlet orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.