Foam gun for mixing and dispensing two reactants
US4550863A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Jun 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2063
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A dispensing gun to deliver at point-of-use chemically reactive constituents or foam reactants in a predetermined volumetric ratio. The foam reactants are pre-packaged within pressurized containers connected to the gun through supply tubing. The dispensing gun has as its principal components: a body with a barrel, bore and pistol grip; a squeezable trigger housed in the pistol grip; a reactant supply and mixing component adjacent the front end of the bore; a reciprocating valve rod within the bore actuated by the trigger; and a bias means normally closing supply ports in the reactant supply and mixing component, and moving the trigger rearwardly of the pistol grip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.