| 摘要 |
<p>A foam dispensing gun for dispensing at least one resin component which solidifies on exposure to air thereby presenting the problem of blocking internal gun passageways, and having a flushing port by which the one resin component can be purged from such passageways to avoid the problem in a very simple manner. The gun includes a gun body (12) with an internal passageway (44, 46, 53) adapted to be closed by a valve (40) to establish a passageway portion located downstream from the valve in the context of resin flow past the valve when opened. The flushing arrangement includes a port (58) extending from the exterior of the gun body to the passageway portion immediately downstream from the closed valve so as to enable the circulation of solvent from a pressurized source, such as a squeeze bottle (66), throughout all surfaces with which the resin comes in contact in the passageway portion.</p> |
