公开(公告)号：US3623775A

公开(公告)日：1971-11-30

申请号：US3623775D

申请日：1970-06-30

Applicant: IBM

Inventor： ARSENEAULT PAUL J ,  FEIERABEND LOUIS B ,  GOLZ WILLIAM R ,  LUHRS OTTO R ,  SMITH JAMES T

IPC: G11B23/113 ,  G11B23/12 ,  B65G53/00

CPC classification number: G11B23/113 ,  G11B23/12

Abstract: Two cartridges are shown herein which have the capability of storing a folded endless loop of tape. The cartridges are designed so that by pneumatic pressure the loop of tape may be unloaded from the cartridge by a controlled unfolding and reloaded into the cartridge by a controlled folding. Two cartridges are shown, one containing a porous wall to permit the appropriate air flow to control the folding and unfolding, and the other containing air passages in nonporous walls to control the folding and unfolding.