The present invention relates to a device for dislodging powder carried on the surface of a flexible sheet material. The device incorporates a resettable impactor including a head for striking the sheet material, wherein the head comprises an elongate striking surface which is curved in both planes orthoganol to the plan of the sheet material. <IMAGE>
申请公布号
SG52348(A1)
申请公布日期
1998.09.28
申请号
SG19960003291
申请日期
1994.07.14
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY.
发明人
SMITH, DAVID, K.;HODSON, PETER, D.;WASS, ANTHONY, C., L.