Dispensing system with in line chemical pump system
US7735685B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Jun 23, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An in-line chemical feed pump for a foam dispenser system that has an inlet conduit for receiving chemical fluid, a pump head in chemical fluid communication with the inlet conduit, an outlet conduit in chemical fluid communication with the pump head, and a driver. In addition, there is provided a pump drive transmission system positioned in drive transmission communication between the driver and pump head, with the pump drive transmission system including a magnetic coupling with first and second magnetic coupling members placed to opposite sides of an intermediate protective shroud, and with the shroud having a coupling reception cavity which receives one of said first and second magnetic coupling members. A method of dispensing foam using an in-line chemical feed pump is also featured including use of a system where two chemical lines are involved each with the in-line pump assembly and each line feeding to a mixing module of a dispenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.