EP 0554242 A4 19931027 - OPTICAL STORAGE DISC PROTECTOR
Title (en)
OPTICAL STORAGE DISC PROTECTOR
Publication
Application
Priority
US 9006200 W 19901022
Abstract (en)
[origin: WO9206904A1] An optical storage disc protector (10) is disclosed which having a thin flexible circular wafer (15) having an upper surface (42) which further includes a flat annular surface (45) for bearing the weight of a CD and a downward sloping concave annular surface (40) for providing an airspace between the wafer and the data bearing surface of the CD. A centrally located hub (20) is attached to the upper surface of the wafer (15) which is sized to be just smaller than the center hole (65) of a typical CD to provide an interference fit with the center hole (65). A circumferential wall (30) is attached to the upper surface (42) of the wafer (15) and is configured to provide an interference fit with peripheral surface (75) of a CD.
IPC 1-7
IPC 8 full level
B65D 85/00 (2006.01); B65D 85/57 (2006.01); G11B 33/04 (2006.01)
CPC (source: EP)
G11B 33/0427 (2013.01)
Citation (search report)
- [X] EP 0159860 A2 19851030 - CBS SONY RECORDS INC [JP]
- [X] DE 8813673 U1 19881222
- [A] US 4609105 A 19860902 - MANES KENNETH [US], et al
- [A] EP 0302549 A2 19890208 - PHILIPS & DU PONT OPTICAL [DE], et al
- [A] EP 0337181 A1 19891018 - TRIBBELS MICHAEL [DE]
- [A] DE 3425579 A1 19860116 - POLYGRAM GMBH [DE]
- See references of WO 9206904A1
Designated contracting state (EPC)
CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9206904 A1 19920430; EP 0554242 A1 19930811; EP 0554242 A4 19931027; JP H06501667 A 19940224
DOCDB simple family (application)
US 9006200 W 19901022; EP 91901105 A 19901022; JP 50142891 A 19901022