EP0386717B1 - Procedure for the production of a ventilation grille - Google Patents

Procedure for the production of a ventilation grille Download PDF

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Publication number
EP0386717B1
EP0386717B1 EP90104317A EP90104317A EP0386717B1 EP 0386717 B1 EP0386717 B1 EP 0386717B1 EP 90104317 A EP90104317 A EP 90104317A EP 90104317 A EP90104317 A EP 90104317A EP 0386717 B1 EP0386717 B1 EP 0386717B1
Authority
EP
European Patent Office
Prior art keywords
housing
ventilation grille
slots
rear wall
strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90104317A
Other languages
German (de)
French (fr)
Other versions
EP0386717A2 (en
EP0386717A3 (en
Inventor
Gottfried Müller
Paul Hipp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schako Metallwarenfabrik Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Publication of EP0386717A2 publication Critical patent/EP0386717A2/en
Publication of EP0386717A3 publication Critical patent/EP0386717A3/en
Application granted granted Critical
Publication of EP0386717B1 publication Critical patent/EP0386717B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/075—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having parallel rods or lamellae directing the outflow, e.g. the rods or lamellae being individually adjustable

Definitions

  • the invention relates to a method for producing a ventilation grille, which has a housing with an opening into which the slats are inserted, and a rear wall with slits which is occupied by a slider.
  • Such ventilation grilles are known in many forms and designs. They are used for supply and exhaust air, for example in duct installations, and have vertical or horizontal drop slats on the front. They can be made of metal or plastic and serve a variety of applications.
  • the louvres are located in their own housing frame, from which corresponding edge strips project to fix this housing frame.
  • the housing frame is then placed on a second frame, which carries the arrangement with the slider.
  • most parts of this known ventilation grille are connected by welding, which poses considerable problems when processing refined or painted metal sheets.
  • the inventors set themselves the goal of creating a ventilation grille of the abovementioned. To develop a way in which these disadvantages are avoided, in particular in which the manufacture is facilitated and is therefore cheaper. Furthermore, the use of materials should be kept as low as possible and cleaning of the ventilation grille should be made easier.
  • the slots are punched out of a strip of material, the side walls are bent, bent from the latter edge strips, these are connected to one another in overlapping areas, and the slider and the slats are inserted into the housing.
  • This design of the housing avoids edges and shoulders within the housing, so that on the one hand the air flow is improved.
  • the air jet in the ventilation grille according to the invention can neither bump on an edge nor on a shoulder and can thereby be deflected. This means that the entire interior of the ventilation grille remains vortex-free and can be used for the supply air duct.
  • the whole grille is much easier to maintain and clean because there are no annoying, circumferential shoulders over which the grille is assembled. Dust deposits, bacteria or the like. Debris can no longer nest in the ventilation grille.
  • edge strips are bent from the side walls, so that the entire ventilation grille has an aesthetically pleasing, all-round, uniform frame when viewed from the front.
  • edge strips overlap in the corner areas and are here connected to one another and possibly also to a corresponding pipe or sheet metal duct of the air conditioning system.
  • the connection takes place, for example, via a perforated rivet, so that welding for this ventilation grille is completely eliminated.
  • the slats are simply inserted into the corresponding holes in the housing via their axes, whereby each individual slat can be rotated around its axis and thus adjusted. This is also a very simple and easy step.
  • the slot slide has slots which are formed by punching.
  • the punched-out material remains connected to the slot slider via an edge and is only bent out of the slot. This also improves the air flow within the ventilation grille, since the individual air streams of the adjacent slots are shielded from one another by the bent-out blades.
  • the slot slide itself has a guide strip at the top and bottom, which is overlapped by a clip strip or the like in the position of use and is thus fixed in the housing.
  • the clip strip is designed so that the slider can be moved within a certain range and this changes the opening width of the slots.
  • This ventilation grille according to the invention consists of only a few individual parts, which is why the use of materials is as low as possible.
  • the manufacturing process shows the small number of work steps, which lead to considerable cost savings.
  • a ventilation grille R consists of a housing 1 which forms a front opening 2.
  • This housing 1 is made from a strip of material. It has a rear wall 3 which can be clearly seen in FIG. 3 and into which slots 4 are stamped.
  • An edge strip 7 or 8 protrudes from each side wall 5, which overlap in the corner points and is connected there by rivets 9.
  • This rivet 9 in the rivet corner points also serves to fasten the ventilation grille R, for example to a sheet metal duct of an air conditioning system or the like.
  • a slot slider 10 is placed through the opening 2 on the rear wall 3, in which slots 11 are also formed by punching, which essentially correspond to the slots 4 of the rear wall 3.
  • the slots 11 are punched along three circumferential sides of the slot, so that a punched-out wing 12 can be bent. This will u. a. a vortex formation within the housing 1 or the actual housing box avoided.
  • Guide strips 13 and 14 are also bent upward and downward from the slit slide 10. These guide strips 13 and 14 are partially overlapped by clamp strips 15 (see FIG. 2) which penetrate a housing base 16, as shown in broken lines in FIG. The clamp strips 15 are arranged in such a way that a displacement of the slot slide 10 along the rear wall 3 is released, so that the slots 4 can be opened or closed in whole or in part.
  • Each lamella 17 is preferably movable about its axis 18.

Abstract

In a ventilation grille with a housing (1) which on the one hand forms an opening (2), into which lamellae (17) are inserted, and on the other hand has a rear wall with slots (11) which is covered with a slotted slide (10), the housing (1) is to be designed in one piece. Folded from the rear wall (3) are side walls (5, 6) which form a housing box, in which the slotted slide (10) and the lamellae (17) are located. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines Lüftungsgitters, welches ein Gehäuse mit einer Öffnung, in die Lamellen eingesetzt werden, und eine mit einem Schlitzschieber belegte Rückwand mit Schlitzen aufweist.The invention relates to a method for producing a ventilation grille, which has a housing with an opening into which the slats are inserted, and a rear wall with slits which is occupied by a slider.

Derartige Lüftungsgitter sind in vielfältiger Form und Ausführung bekannt. Sie dienen für Zu- und Abluft beispielsweise in Kanaleinbauten und weisen frontseitig senkrechte oder waagrechte Tropfenlamellen auf. Sie können aus Metall oder Kunststoff sein und vielfältigen Anwendungszwecken dienen.Such ventilation grilles are known in many forms and designs. They are used for supply and exhaust air, for example in duct installations, and have vertical or horizontal drop slats on the front. They can be made of metal or plastic and serve a variety of applications.

Bei den bisherigen Lüftungsgitter befinden sich die Lamellen in einem eigenen Gehäuserahmen, von welchem entsprechende Randstreifen zur Festlegung dieses Gehäuserahmens abkragen. Dem Gehäuserahmen ist dann ein zweiter Rahmen aufgesetzt, welcher die Anordnung mit dem Schlitzschieber trägt. In der Regel sind die meisten Teile dieses bekannten Lüftungsgitters durch Schweißen verbunden, was erhebliche Probleme bei der Verarbeitung von veredelten oder lackierten Blechen aufwirft.With the previous ventilation grilles, the louvres are located in their own housing frame, from which corresponding edge strips project to fix this housing frame. The housing frame is then placed on a second frame, which carries the arrangement with the slider. As a rule, most parts of this known ventilation grille are connected by welding, which poses considerable problems when processing refined or painted metal sheets.

Ferner gibt es in diesen Lüftungsgitter Übergänge von einem Rahmenteil zum anderen, welche beispielsweise Luftstrahlen ablenken und zu Wirbeln innerhalb der Lüftungsgitter führen. Des weiteren bilden sich an solchen Absätzen erhebliche Staubablagerungen, welche aus hygienischen Gründen nicht wünschenswert sind.Furthermore, there are transitions in this ventilation grille from one frame part to the other, which, for example, deflect air jets and lead to eddies within the ventilation grille. Furthermore, considerable dust deposits form on such heels, which are not desirable for hygienic reasons.

Die Erfinder haben sich zum Ziel gesetzt, ein Lüftungsgitter der o.g. Art zu entwickeln, bei welchem diese Nachteile vermieden werden, bei dem insbesondere die Herstellung erleichtert und aus diesem Grund kostengünstiger ist. Ferner soll der Materialeinsatz so gering wie möglich gehalten werden und ein Reinigen des Lüftungsgitters erleichtert sein.The inventors set themselves the goal of creating a ventilation grille of the abovementioned. To develop a way in which these disadvantages are avoided, in particular in which the manufacture is facilitated and is therefore cheaper. Furthermore, the use of materials should be kept as low as possible and cleaning of the ventilation grille should be made easier.

Zur Lösung dieser Aufgabe führt, daß die Schlitze aus einem Materialstreifen ausgestanzt, Seitenwände abgekantet, von letzteren Randstreifen abgebogen, diese miteinander in überlappenden Bereichen verbunden und der Schlitzschieber sowie die Lamellen in das Gehäuse eingesetzt werden.To achieve this object, the slots are punched out of a strip of material, the side walls are bent, bent from the latter edge strips, these are connected to one another in overlapping areas, and the slider and the slats are inserted into the housing.

Durch diese Ausbildung des Gehäuses werden Kanten und Absätze innerhalb des Gehäuses vermieden, so daß zum einen die Luft-führung verbessert ist. Weder an einer Kante noch an einem Absatz kann sich in dem erfindungsgemäßen Lüftungsgitter der Luftstrahl stoßen und hierdurch abgelenkt werden. Dadurch bleibt der gesamte Innenraum des Lüftungsgitters wirbelfrei und kann für die Zuluftführung verwendet werden.This design of the housing avoids edges and shoulders within the housing, so that on the one hand the air flow is improved. The air jet in the ventilation grille according to the invention can neither bump on an edge nor on a shoulder and can thereby be deflected. This means that the entire interior of the ventilation grille remains vortex-free and can be used for the supply air duct.

Zum anderen ist das ganze Gitter wesentlich leichter zu warten und zu reinigen, weil keine störenden, umlaufenden Absätze vorhanden sind, über die das Gitter zusamnengebaut ist. Staubablagerungen, Bakterien od. dgl. Unrat kann sich in dem Lüftungsgitter nicht mehr einnisten.On the other hand, the whole grille is much easier to maintain and clean because there are no annoying, circumferential shoulders over which the grille is assembled. Dust deposits, bacteria or the like. Debris can no longer nest in the ventilation grille.

Aus einem einzigen Materialstreifen werden von einer Rückwand Seitenwände abgekantet, welche die eigentliche Gehäusebox ausbilden. In dieser Gehäusebox sitzt dann der Schlitzschieber und die Lamellen.Side walls, which form the actual housing box, are folded from a single material strip from a rear wall. The slit slide and the slats then sit in this housing box.

Ferner werden von den Seitenwänden Randstreifen abgebogen, so daß das gesamte Lüftungsgitter von vorne gesehen einen ästhetisch ansprechenden, umlaufenden, gleichmäßigen Rahmen besitzt.Furthermore, edge strips are bent from the side walls, so that the entire ventilation grille has an aesthetically pleasing, all-round, uniform frame when viewed from the front.

Weiterhin überlappen sich die Randstreifen in den Eckbereichen und sind hier miteinander und ggfs. auch mit einem entsprechenden Rohr oder Blechkanal der Klimaanlage verbunden. Die Verbindung geschieht beispielsweise über eine Lochniete, so daß ein Schweißen für dieses Lüftungsgitter vollkommen entfällt.Furthermore, the edge strips overlap in the corner areas and are here connected to one another and possibly also to a corresponding pipe or sheet metal duct of the air conditioning system. The connection takes place, for example, via a perforated rivet, so that welding for this ventilation grille is completely eliminated.

Damit ist auch die Möglichkeit gegeben, das Lüftungsgitter aus Stahlblech, Aluminium, lackiertem Blech, verzinktem Blech, Chrom-Nickel-Stahl oder auch aus Kunststoff zu fertigen. Abgesehen davon sind Schweißarbeiten immer umweltbelastend.This also makes it possible to manufacture the ventilation grille from sheet steel, aluminum, painted sheet metal, galvanized sheet metal, chrome-nickel steel or even from plastic. Apart from that, welding work is always harmful to the environment.

Die Lamellen werden einfach über ihre Achsen in entsprechende Bohrungen des Gehäuses eingesetzt, wobei jede einzelne Lamelle für sich um ihre Achse gedreht und damit verstellt werden kann. Auch dies ist ein sehr einfacher und leichter Arbeitsschritt.The slats are simply inserted into the corresponding holes in the housing via their axes, whereby each individual slat can be rotated around its axis and thus adjusted. This is also a very simple and easy step.

Der Schlitzschieber besitzt Schlitze, welche durch Stanzungen ausgeformt sind. Dabei bleibt das ausgestanzte Material über eine Kante mit dem Schlitzschieber verbunden und ist lediglich aus dem Schlitz herausgebogen. Auch hierdurch wird die Luftführung innerhalb des Lüftungsgitters verbessert, da durch die herausgebogenen Flügel die einzelnen Luftströme der nebeneinander liegenden Schlitze voneinander abgeschirmt sind.The slot slide has slots which are formed by punching. The punched-out material remains connected to the slot slider via an edge and is only bent out of the slot. This also improves the air flow within the ventilation grille, since the individual air streams of the adjacent slots are shielded from one another by the bent-out blades.

Der Schlitzschieber selbst besitzt oben und unten je einen Führungsstreifen, welcher in Gebrauchslage von einem Klammerstreifen od. dgl. übergriffen ist und so in dem Gehäuse festliegt. Der Klammerstreifen ist dabei so ausgelegt, daß der Schlitzschieber in einem gewissen Bereich verschoben werden kann und hierdurch die Öffnungsweite der Schlitze verändert wird.The slot slide itself has a guide strip at the top and bottom, which is overlapped by a clip strip or the like in the position of use and is thus fixed in the housing. The clip strip is designed so that the slider can be moved within a certain range and this changes the opening width of the slots.

Dieses erfindungsgemäße Lüftungsgitter besteht aus nur wenigen Einzelteilen, weshalb der Materialeinsatz so gering wie möglich ist. Das Herstellungsverfahren zeigt die geringe Zahl von Arbeitsschritten, welche zu erheblichen Kosteneinsparungen führen.This ventilation grille according to the invention consists of only a few individual parts, which is why the use of materials is as low as possible. The manufacturing process shows the small number of work steps, which lead to considerable cost savings.

Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt in

  • Fig. 1 eine Frontansicht eines erfindungsgemäßen Lüftungsgitters;
  • Fig. 2 einen Querschnitt durch das Lüftungsgitter gemäß Figur 1 entlang Linie II-II;
  • Fig. 3 einen teilweise dargestellten Längsschnitt durch das Lüftungsgitter gemäß Figur 1 entlang Linie III-III.
Details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawing; this shows in
  • 1 is a front view of a ventilation grille according to the invention;
  • 2 shows a cross section through the ventilation grille according to FIG. 1 along line II-II;
  • Fig. 3 is a partially shown longitudinal section through the ventilation grille according to Figure 1 along line III-III.

Ein erfindungsgemäßes Lüftungsgitter R besteht gemäß Figur 1 aus einem Gehäuse 1, welches eine frontwärtige Öffnung 2 ausbildet. Dieses Gehäuse 1 ist aus einem Materialstreifen hergestellt. Es besitzt eine in Figur 3 deutlich erkennbare Rückwand 3, in welche Schlitze 4 eingestanzt sind.According to FIG. 1, a ventilation grille R according to the invention consists of a housing 1 which forms a front opening 2. This housing 1 is made from a strip of material. It has a rear wall 3 which can be clearly seen in FIG. 3 and into which slots 4 are stamped.

Von der Rückwand 3 sind Seitenwände 5 und 6 abgekantet, welche eine eigentliche Gehäusebox ausbilden.Side walls 5 and 6 are bent from the rear wall 3 and form an actual housing box.

Von jeder Seitenwand 5 kragt ein Randstreifen 7 bzw. 8 ab, welche sich in den Eckpunkten überlappen und dort mittels Nieten 9 miteinander verbunden sind. Diese Lochniete 9 in den Nieteckpunkten dient gleichfalls zur Befestigung des Lüftungsgitters R beispielsweise an einem Blechkanal einer Klimaanlage od. dgl..An edge strip 7 or 8 protrudes from each side wall 5, which overlap in the corner points and is connected there by rivets 9. This rivet 9 in the rivet corner points also serves to fasten the ventilation grille R, for example to a sheet metal duct of an air conditioning system or the like.

Durch die Öffnung 2 hindurch ist auf die Rückwand 3 ein Schlitzschieber 10 aufgelegt, bei welchem ebenfalls durch Ausstanzungen Schlitze 11 ausgebildet sind, welche im wesentlichen mit den Schlitzen 4 der Rückwand 3 übereinstimmen. Die Stanzung der Schlitze 11 erfolgt entlang von drei umlaufenden Seiten des Schlitzes, so daß ein ausgestanzter Flügel 12 abgebogen werden kann. Hierdurch wird u. a. eine Wirbelbildung innerhalb des Gehäuses 1 bzw. der eigentlichen Gehäusebox vermieden.A slot slider 10 is placed through the opening 2 on the rear wall 3, in which slots 11 are also formed by punching, which essentially correspond to the slots 4 of the rear wall 3. The slots 11 are punched along three circumferential sides of the slot, so that a punched-out wing 12 can be bent. This will u. a. a vortex formation within the housing 1 or the actual housing box avoided.

Nach oben und nach unten hin sind von dem Schlitzschieber 10 noch Führungsstreifen 13 und 14 abgekantet. Diese Führungsstreifen 13 bzw. 14 werden teilweise von Klammerstreifen 15 (siehe Figur 2) übergriffen, welche einen Gehäuseboden 16 durchsetzen, wie dies in Figur 3 gestrichelt dargestellt ist. Die Klammerstreifen 15 sind so angeordnet, daß ein Verschieben des Schlitzschiebers 10 entlang der Rückwand 3 freigegeben ist, so daß die Schlitze 4 ganz oder teilweise geöffnet bzw. geschlossen werden können.Guide strips 13 and 14 are also bent upward and downward from the slit slide 10. These guide strips 13 and 14 are partially overlapped by clamp strips 15 (see FIG. 2) which penetrate a housing base 16, as shown in broken lines in FIG. The clamp strips 15 are arranged in such a way that a displacement of the slot slide 10 along the rear wall 3 is released, so that the slots 4 can be opened or closed in whole or in part.

In die Öffnung 2 des Gehäuses 1 sind senkrechte Lamellen 17 eingesetzt und um eine Achse 18 drehbar. Selbstverständlich können anstelle von senkrechten Lamellen auch waagerechte Lamellen vorgesehen sein. Bevorzugt ist jede Lamelle 17 für sich um ihre Achse 18 bewegbar.Vertical slats 17 are inserted into the opening 2 of the housing 1 and can be rotated about an axis 18. Of course, horizontal slats can also be provided instead of vertical slats. Each lamella 17 is preferably movable about its axis 18.

Claims (3)

  1. Process for producing a ventilation grille which has a housing (1) with an opening (2) into which bars (17) are inserted and a rear wall (3) with slots (4) covered by a slot slider (10), characterised in that the slots (4) are punched from a strip of material, lateral walls (5, 6) are folded, marginal strips (7, 8) are bent from the lateral walls (5, 6), these marginal strips (7, 8) are connected to one another in overlapping regions and the slot slider (10) and the bars (17) are inserted into the housing (1).
  2. Process according to claim 1, characterised in that, for producing the slot slider (10), slots (11) are punched from a further strip of material so as to form blades (12) and guide strips (13, 14) are folded from two sides and the slot slider (10) is fixed in the housing (1) via a fastening strip (15).
  3. Process according to claim 1 or 2, characterised in that the bars (17) with their axes (18) are inserted in appropriate bores in the housing (1).
EP90104317A 1989-03-09 1990-03-07 Procedure for the production of a ventilation grille Expired - Lifetime EP0386717B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907559A DE3907559A1 (en) 1989-03-09 1989-03-09 VENTILATION GRILLE
DE3907559 1989-03-09

Publications (3)

Publication Number Publication Date
EP0386717A2 EP0386717A2 (en) 1990-09-12
EP0386717A3 EP0386717A3 (en) 1991-03-13
EP0386717B1 true EP0386717B1 (en) 1992-12-09

Family

ID=6375879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104317A Expired - Lifetime EP0386717B1 (en) 1989-03-09 1990-03-07 Procedure for the production of a ventilation grille

Country Status (10)

Country Link
US (1) US5042368A (en)
EP (1) EP0386717B1 (en)
JP (1) JPH03137449A (en)
AT (1) ATE83308T1 (en)
CA (1) CA2011786C (en)
DD (1) DD292515A5 (en)
DE (2) DE3907559A1 (en)
DK (1) DK0386717T3 (en)
ES (1) ES2036857T3 (en)
GR (1) GR3006622T3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9310724U1 (en) * 1993-07-17 1993-11-25 Schako Metallwarenfabrik Source outlet
DE4334894A1 (en) * 1993-10-13 1995-04-20 Schako Metallwarenfabrik Air outlet
DE4400225A1 (en) * 1994-01-07 1995-07-13 Schako Metallwarenfabrik Air outlet esp. for ventilation system
DE9409948U1 (en) * 1994-06-20 1994-10-20 Schako Metallwarenfabrik Ventilation grille
DE19516288C2 (en) * 1995-05-04 1999-06-02 Schako Metallwarenfabrik Air outlet
DE19641902C2 (en) * 1996-10-11 2001-03-22 Schako Metallwarenfabrik Source outlet
DE19617288C2 (en) * 1996-04-30 1999-04-29 Schako Metallwarenfabrik Source outlet
ES2210412T3 (en) * 1996-04-30 2004-07-01 Schako Klima Luft Ferdinand Schad Kg AIR VENT.
DE19620754C2 (en) * 1996-05-23 1999-01-21 Schako Metallwarenfabrik Source outlet
DE19626885C2 (en) * 1996-07-04 2000-11-23 Schako Metallwarenfabrik Air outlet
DE19710404C1 (en) * 1997-03-13 1998-07-23 Schako Metallwarenfabrik Method of adjusting air ducting system to specified outlet flow rate
US6033304A (en) * 1997-10-31 2000-03-07 Continental Industries, Inc. Register and method of assembly
DE10001280C2 (en) * 2000-01-14 2001-12-13 Schako Metallwarenfabrik Ventilation grille
DE202009004750U1 (en) * 2009-04-28 2010-09-16 Weiss Klimatechnik Gmbh Arrangement for influencing airflows and ventilation ducts
US20200282352A1 (en) * 2019-03-06 2020-09-10 Matthew Philip Davidson Filter mount

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Publication number Priority date Publication date Assignee Title
US205786A (en) * 1878-07-09 Improvement in hot-air registers
DD57183A (en) *
US766957A (en) * 1904-01-06 1904-08-09 Joseph G Lloyd Hot-air register.
US1559376A (en) * 1923-03-10 1925-10-27 Andrew L Riker Ventilator
US3500739A (en) * 1968-05-23 1970-03-17 John P Dry Plastic register with shutter blades
DE2608053C2 (en) * 1976-02-27 1984-02-16 H. Krantz Gmbh & Co, 5100 Aachen Device for regulating the impulse of an air flow and air outlet
US4426918A (en) * 1980-04-25 1984-01-24 Lambert Robert R Proportioning air diffuser and system
IN167573B (en) * 1985-11-22 1990-11-17 Atlas Air Australia
IL86606A (en) * 1988-06-02 1993-05-13 Israel Twito Air outlets for air conditioning systems

Also Published As

Publication number Publication date
CA2011786C (en) 1994-01-04
JPH03137449A (en) 1991-06-12
DK0386717T3 (en) 1993-04-13
ATE83308T1 (en) 1992-12-15
EP0386717A2 (en) 1990-09-12
DD292515A5 (en) 1991-08-01
CA2011786A1 (en) 1990-09-09
EP0386717A3 (en) 1991-03-13
DE3907559A1 (en) 1990-09-13
US5042368A (en) 1991-08-27
ES2036857T3 (en) 1993-06-01
DE59000563D1 (en) 1993-01-21
GR3006622T3 (en) 1993-06-30

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