Global Patent Index - EP 1028636 A1

EP 1028636 A1 2000-08-23 - CONVEYING ROD-LIKE ARTICLES PNEUMATICALLY

Title (en)

CONVEYING ROD-LIKE ARTICLES PNEUMATICALLY

Title (de)

PNEUMATISCHES TRANSPORTSYSTEM FÜR STABFÖRMIGE ARTIKEL

Title (fr)

TRANSPORT PAR SYSTEME PNEUMATIQUE D'ARTICLES DU TYPE TIGE

Publication

EP 1028636 A1 (EN)

Application

EP 98951590 A

Priority

  • GB 9803276 W
  • GB 9723297 A
  • GB 9821865 A

Abstract (en)

[origin: WO9922611A1] A conveying system for pneumatic conveyance of cigarette filter rods provides a matrix (114) of pneumatic conveying tubes (102, 104) and switches (116, 118) allowing filters to be delivered from any of a number of distributors (106) associated with different cigarette filter making machines to any of a number of receivers (108) at different cigarette filter assembling machines. The system includes pneumatic switches (116, 118) for selectively connecting pneumatic tubes at each junction, and corresponding commonly-switched electrical switches (144) for establishing electrical communication in accordance with the pneumatic connections. The pneumatic and electrical switching means may comprise a rotary or linear reciprocable switch element. In another system for transferring cigarette filter rods between groups of delivery devices and groups of receiving devices, pneumatic switches (64) are used to allow switching of rods from one group of delivery devices to another to supplement supply when required. A path length determination for rods conveyed pneumatically through a series of tubes may be made by detection of a sound pulse transmitted along the path of the rods through the tubes.

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

A24C 5/32

IPC 8 full level (invention and additional information)

A24C 5/32 (2006.01)

CPC (invention and additional information)

A24C 5/323 (2013.01)

Citation (search report)

See references of WO 9922611A1

Designated contracting state (EPC)

CH DE GB IT LI

EPO simple patent family

WO 9922611 A1 19990514; CN 1278149 A 20001227; EP 1028636 A1 20000823

INPADOC legal status


2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030408

2001-07-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010612

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000531

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE GB IT LI