EP 3477208 A1 20190501 - ACOUSTIC TUBE ASPIRATOR APPARATUS
Title (en)
ACOUSTIC TUBE ASPIRATOR APPARATUS
Title (de)
SCHALLSCHLAUCHASPIRATORVORRICHTUNG
Title (fr)
APPAREIL D'ASPIRATION À TUBE ACOUSTIQUE
Publication
Application
Priority
EP 17199195 A 20171030
Abstract (en)
The present invention refers to an acoustic tube aspirator apparatus for ventilating cooking environment comprises, at least one cylindrical tube (1), at least two sound transducers, at least one control unit and a plurality of amplifiers. Each of the sound transducers are attached to two ends of the cylindrical tube (1) for generating sound waves (6) inside the cylindrical tube (1) from both the ends of the cylindrical tube (1). The generated sound waves (6) from both the ends are in opposite direction to each other for creating standing wave inside the cylindrical tube (1). The cylindrical tube (1) is provided with plurality of holes (2, 3) for allowing air flow between the cylindrical tube (1) and the cooking environment. The holes are provided in the cylindrical tube (1) on locations of nodes (8) and antinodes (7) of the standing wave that pass through the cylindrical tube (1). The standing waves create precise pressure variations in specific volumes of the cylindrical tube (1) which in turn sucks unwanted gases and scattered fluids from the cooking environment thereby to create air flow in desired directions.
IPC 8 full level
F04F 7/00 (2006.01); F24C 15/20 (2006.01)
CPC (source: EP)
F04F 7/00 (2013.01); F24C 15/20 (2013.01); F02G 2243/52 (2013.01)
Citation (applicant)
- US 4962330 A 19901009 - LIERKE ERNST G [DE], et al
- US 4393708 A 19830719 - BARMATZ MARTIN B, et al
- US 4218921 A 19800826 - BERGE LEROY H [US], et al
- US 4688199 A 19870818 - LOCK MICHAEL W B [GB]
Citation (search report)
- [X] US 6079214 A 20000627 - BISHOP RICHARD PATTEN [US]
- [X] US 2003124006 A1 20030703 - DOOLEY KEVIN ALLAN [CA]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 17199195 A 20171030; TR 201718995 A 20171128