专利名称：Plantfor processing by cutting material with
the aid of a laser beam
发明人：Lars G. Knutsson申请号：US06/598316申请日：19840302公开号：US04582977A公开日：19860415
摘要：A laser cutting plant includes a cutting head guidable in two directions, to whicha laser beam is taken via three mutually perpendicular tubes (2, 4, 14) in sealedconnection to each other and containing two deflection mirrors (22) for the beam. Thelaser beam unit is stationary. The mirrors are carried by the respective tube (4, 14) via flatthroats (24) moving in longitudinal slits (21) in the connecting tubes (2, 4) said slits beingcovered by two opposing and resiliently engaging lips (31).
申请人：INGENJOERSFIRMA G. KNUTSSON AB
代理机构：Burns, Doane, Swecker & Mathis
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