A positive displacement type substance sampling and dispensing device comprises a central plunger formed from a first material. A plunger housing is formed from a second material having a melting point lower than the first material, the housing being formed by molding and setting the second material on to the surface of the plunger so that the plunger can slide in the housing to draw a substance into it.
申请公布号
EP1206321(B1)
申请公布日期
2004.08.04
申请号
EP20000953324
申请日期
2000.08.15
申请人
THE TECHNOLOGY PARTNERSHIP PUBLIC LIMITED COMPANY
发明人
CASSELLS, JOHN;EDWARDS, THOMAS, RICHARD, KERBY;WITHERS, MICHAEL, JOHN;LONG, JAMES