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Current content: 158 251 954 patent documents

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1 828 765 documents amended

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EP 0934474 A1 19990811 - COIL SPRING

Title (en)

COIL SPRING

Title (de)

SCHRAUBENFEDER

Title (fr)

RESSORT A BOUDIN

Publication

EP 0934474 A1 19990811 (EN)

Application

EP 97919156 A 19970918

Priority

GB 9702521 W 19970918
GB 9619678 A 19960920

Abstract (en)

[origin: GB2317432A] A coil spring comprises alternating lengths of major diameter and minor diameter coils C1, C2. The coils may be circular or polygonal in cross-section, and may include a flat for keying purposes.

IPC 1-7

F16F 1/04

IPC 8 full level

F16F 1/06 (2006.01); F16F 1/04 (2006.01)

CPC (source: EP)

F16F 1/04 (2013.01)

Citation (search report)

See references of WO 9812450A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IE IT LI LU NL SE

DOCDB simple family (publication)

GB 2317432 A 19980325; GB 9619678 D0 19961106; AU 4309097 A 19980414; EP 0934474 A1 19990811; JP 2001500600 A 20010116; TW 358148 B 19990511; WO 9812450 A1 19980326

DOCDB simple family (application)

GB 9619678 A 19960920; AU 4309097 A 19970918; EP 97919156 A 19970918; GB 9702521 W 19970918; JP 51439598 A 19970918; TW 86113711 A 19970919