EP 0906546 B1 20000426 - METHOD AND DEVICE FOR PROTECTING A WORK SURFACE
Title (en)
METHOD AND DEVICE FOR PROTECTING A WORK SURFACE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM SCHÜTZEN EINER ARBEITSPLATTE
Title (fr)
PROCEDE ET DISPOSITIF DE PROTECTION D'UN PLAN DE TRAVAIL
Publication
Application
Priority
- FR 9701106 W 19970620
- FR 9607961 A 19960621
Abstract (en)
[origin: US6095918A] PCT No. PCT/FR97/01106 Sec. 371 Date Mar. 2, 1999 Sec. 102(e) Date Mar. 2, 1999 PCT Filed Jun. 20, 1997 PCT Pub. No. WO97/49955 PCT Pub. Date Dec. 31, 1997A method and apparatus for closely protecting a workstation. The method includes the steps of (a) providing a horizontal work surface having a top face, an upstream side and a free side opposite the upstream side, the free side having an edge, the work surface being unobstructed and accessible from above the top face and from at least the free side; (b) continuously blowing clean air over the work surface from the upstream side toward the free side so as to form a substantially horizontal flow of the clean air across the work surface and so that the flow of air has a velocity gradient with an upper layer or stream of air having a substantially higher velocity of flow than a lower layer or stream of the air flowing proximal to the top face; and (c) continuously sucking air from the flow of air into a suction intake disposed near the edge of the free side. The apparatus includes (a) an air blower for blowing clean air continuously over the work surface from the upstream side to the free side so as to form a substantially horizontal flow of the clean air across the work surface and so that the flow of air has a velocity gradient with an upper layer or stream of the air having a substantially higher velocity of flow than a lower layer or stream of the air flowing proximal to the top face; and (b) a suction intake disposed near the edge of the free side for collecting air from the flow of air blown to the free side.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F24F 3/163 (2021.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9749955 A1 19971231; AT E192228 T1 20000515; CA 2259455 A1 19971231; CA 2259455 C 20041026; DE 69701803 D1 20000531; DE 69701803 T2 20001019; DK 0906546 T3 20000911; EP 0906546 A1 19990407; EP 0906546 B1 20000426; ES 2146108 T3 20000716; FR 2750199 A1 19971226; FR 2750199 B1 19980911; GR 3033981 T3 20001130; JP 2000512730 A 20000926; PT 906546 E 20000929; US 6095918 A 20000801
DOCDB simple family (application)
FR 9701106 W 19970620; AT 97930559 T 19970620; CA 2259455 A 19970620; DE 69701803 T 19970620; DK 97930559 T 19970620; EP 97930559 A 19970620; ES 97930559 T 19970620; FR 9607961 A 19960621; GR 20000401666 T 20000719; JP 50243898 A 19970620; PT 97930559 T 19970620; US 20258099 A 19990302