Global Patent Index - EP 1319621 A1

EP 1319621 A1 2003-06-18 - Electro-pneumatic device for regulating the tension of threads or ribbons

Title (en)

Electro-pneumatic device for regulating the tension of threads or ribbons

Title (de)

Elektropneumatische Vorrichtung zur Fadenspannungsregulierung

Title (fr)

Dispositif éléctro-pneumatique pour la régulation de tension des fils et rubans

Publication

EP 1319621 A1 (EN)

Application

EP 01830758 A

Priority

EP 01830758 A

Abstract (en)

An electro-pneumatic device for regulating the tension of travelling threads or ribbons being absorbed by a weaving and/or treating machine, comprises at least a sensor (1c) of the tension of at least a thread or ribbon generating an electronic signal representative of the sensed tension, a control circuitry generating a control signal in function of the magnitude of the electric signal and of a programmed reference value, at least a pneumatic brake (1a) composed of a fixed jaw (3) and a mobile jaw (4) functionally facing each other defining a separation gap through which the thread or ribbon travels and a bellows (5) sustaining the mobile jaw communicating with a duct (9) of compressed air at an adjustable pressure; electrically operated valves (6,7) for injecting compressed air in the duct (9) to increase pressure or to reduce pressure; the control signal commanding the valves (6,7) for regulating the tension of the travelling thread or ribbon downstream of the pneumatic brake (1a). <IMAGE>

IPC 1-7 (main, further and additional classification)

B65H 59/22

IPC 8 full level (invention and additional information)

B65H 59/24 (2006.01)

CPC (invention and additional information)

B65H 59/24 (2013.01); B65H 2555/112 (2013.01); B65H 2701/31 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1319621 A1 20030618

INPADOC legal status


2004-08-04 [18W] APPLICATION WITHDRAWN

- Effective date: 20040608

2004-04-15 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2004-03-10 [AKX] PAYMENT OF DESIGNATION FEES

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI