Terrence M. Fulkerson,Terry John Thompson,Jeffery Edward Dailidas,Kenneth A. Kreeger,Joseph G. Schroeder
申请号：
US13352412
公开号：
US09067223B2
申请日:
2012.01.18
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.
