Foam liquid concentrate supply system
US4436487A · kind A · utility
18Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Jun 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2572
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system for supplying foam liquid concentrate via a concentrate pump to one or more water pump discharge outlets. The concentrate pump is powered by a variable output hydraulic drive which in turn is automatically modulated independently of the level of operation of the water pump by a control system which is responsive both to the water pressure developed by the water pump and to the foam liquid concentrate pressure developed by the concentrate pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.