EP 0289874 B1 19911113 - DEVICE FOR EXTRACTING AND FILTERING AIR CHARGED WITH DUST AND OR DISPERSED FIBRES AT SPINNING MACHINES
Title (en)
DEVICE FOR EXTRACTING AND FILTERING AIR CHARGED WITH DUST AND OR DISPERSED FIBRES AT SPINNING MACHINES
Publication
Application
Priority
DE 3715217 A 19870507
Abstract (en)
[origin: US4886532A] Apparatus for removing and filtering dirty air from equipment such as textile spinning machines. The apparatus has a suction duct through which dirty air is drawn. An intermediate duct containing a filter unit extends from the suction duct to a blower that blows the air through a discharge duct. The intermediate duct and discharge duct are partially contiguous with a common wall that has a portion shiftable from a common wall disposition during normal operation to a common wall opening and air flow diverting position to reverse air flow through the filter unit for cleaning and to cause air to be drawn to the blower through the discahrge duct. The shiftable wall portion may be mounted for pivoting or for sliding. The intermediate duct and the discharge duct may be arranged parallel or in crossing relation and may be rectangular to semi-circular in cross-section.
IPC 1-7
IPC 8 full level
B01D 46/24 (2006.01); B08B 15/04 (2006.01); D01H 11/00 (2006.01); F24F 7/06 (2006.01); F24F 13/02 (2006.01)
CPC (source: EP US)
D01H 11/005 (2013.01 - EP US); F24F 7/065 (2013.01 - EP US); F24F 13/02 (2013.01 - EP US); F24F 2221/22 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR IT LI
DOCDB simple family (publication)
EP 0289874 A1 19881109; EP 0289874 B1 19911113; DE 3715217 A1 19881117; DE 3866154 D1 19911219; JP S63287520 A 19881124; US 4886532 A 19891212
DOCDB simple family (application)
EP 88106372 A 19880420; DE 3715217 A 19870507; DE 3866154 T 19880420; JP 10928888 A 19880506; US 19088488 A 19880506