EP 0118369 B1 19880113 - METHODS OF FORMING FIBRE FELTS
Title (en)
METHODS OF FORMING FIBRE FELTS
Publication
Application
Priority
FR 8303919 A 19830310
Abstract (en)
[origin: ES8500360A1] A process for the improvement in the distribution of fibers in a fiber felt formed by retention of fibers entrained in a gaseous current is disclosed, along with apparatus suitable for practicing that process. The gaseous current is caused to pass through an oscillating guide duct, the frequency, amplitude and median direction of the oscillation, or at least one of those aspects, may be automatically regulated and altered in response to sensed variations in the distribution of the fiber. The distribution variations are measured by determining relative absorption of radiation across different portions of the width of the felt in comparison with the mean value of that distribution.
IPC 1-7
IPC 8 full level
D04H 1/00 (2006.01); D04H 1/4209 (2012.01); D04H 1/4218 (2012.01); D04H 1/4226 (2012.01); D04H 1/72 (2012.01); D04H 1/732 (2012.01); D04H 3/03 (2012.01)
CPC (source: EP KR US)
D04H 1/00 (2013.01 - EP US); D04H 1/08 (2013.01 - KR); D04H 1/4209 (2013.01 - EP US); D04H 1/4218 (2013.01 - EP US); D04H 1/4226 (2013.01 - EP US); D04H 1/72 (2013.01 - EP US); D04H 1/732 (2013.01 - EP US); D04H 3/03 (2013.01 - EP US); D04H 17/00 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0118369 A1 19840912; EP 0118369 B1 19880113; AR 231315 A1 19841031; AT E31948 T1 19880115; AU 2518384 A 19840927; BR 8401091 A 19841016; CA 1220623 A 19870421; DE 3468708 D1 19880218; DK 142884 A 19840911; DK 142884 D0 19840229; DK 161342 B 19910624; DK 161342 C 19911202; EG 16654 A 19910830; ES 530457 A0 19841101; ES 8500360 A1 19841101; FI 77901 B 19890131; FI 840976 A0 19840309; FI 840976 A 19840911; FR 2542336 A1 19840914; FR 2542336 B1 19851129; GR 79517 B 19841030; IE 55015 B1 19900425; IE 840557 L 19840910; IL 71312 A 19880731; JP S59199855 A 19841113; KR 840007915 A 19841211; KR 920000959 B1 19920131; MA 20057 A1 19841001; MX 157904 A 19881220; NO 160306 B 19881227; NO 160306 C 19890405; NO 840868 L 19840911; NZ 207438 A 19861205; PT 78217 A 19840401; PT 78217 B 19860423; TR 22124 A 19860430; US 4592769 A 19860603; YU 42184 A 19870228; YU 43346 B 19890630; ZA 841706 B 19841128
DOCDB simple family (application)
EP 84400453 A 19840307; AR 29596384 A 19840309; AT 84400453 T 19840307; AU 2518384 A 19840301; BR 8401091 A 19840309; CA 449209 A 19840309; DE 3468708 T 19840307; DK 142884 A 19840229; EG 15984 A 19840307; ES 530457 A 19840309; FI 840976 A 19840309; FR 8303919 A 19830310; GR 840174029 A 19840308; IE 55784 A 19840308; IL 7131284 A 19840322; JP 4416584 A 19840309; KR 840001208 A 19840309; MA 20279 A 19840309; MX 20060084 A 19840308; NO 840868 A 19840307; NZ 20743884 A 19840308; PT 7821784 A 19840308; TR 2212484 A 19840309; US 58798084 A 19840309; YU 42184 A 19840308; ZA 841706 A 19840307