US20130035032A1 - Louvered grill - Google Patents
Louvered grill Download PDFInfo
- Publication number
- US20130035032A1 US20130035032A1 US13/261,473 US201113261473A US2013035032A1 US 20130035032 A1 US20130035032 A1 US 20130035032A1 US 201113261473 A US201113261473 A US 201113261473A US 2013035032 A1 US2013035032 A1 US 2013035032A1
- Authority
- US
- United States
- Prior art keywords
- louvered
- louvers
- louvered grille
- grille
- face
- 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.)
- Abandoned
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
Definitions
- the invention relates to a louvered grille for an air conduction housing, comprising a plurality of louvers which are spaced apart from one another to form air passage openings, wherein the louvers extend in the widthwise direction of the louvered grille and have an upper louver face that is directed to the exterior and inclined transversely with respect to the vertical direction of the louvered grille.
- Louvered grilles of this type are known from the prior art. Louvers are used which extend inclined in the widthwise direction of the louvered grille between two supporting bars. The louvered grilles serve to cover air conduction housings which are inserted into an opening of a switchgear cabinet wall of a switchgear cabinet. The louvered grilles cover the air conduction housing to the exterior to offer a certain mechanical access protection. Rain water may be drained off along the inclined surface of the louvers, so that it cannot reach the interior of the switchgear cabinet. The so-called IP classification determines protection of the louvered grille.
- the upper louver face of at least some of the louvers has a convex curvature in at least some areas thereof, both in the widthwise direction of the louvered grille and in the vertical direction of the louvered grille.
- a dual convexly curved surface of the louver results. That convexity results in that an impinging water jet of a steam cleaner is atomized at the louver, so that it loses its kinetic energy. Thus, the strength of the steam jet is broken, and the risk of intruding water is considerably reduced.
- the louvers are strip-shaped and, starting from a center portion thereof towards the longitudinal ends, slope in the vertical direction.
- a curved louver shape is provided, wherein water draining off the upper louver face is directed laterally to the edges of the louver.
- louvers have, at a lower louver face facing away from the upper louver face, a concave curvature in at least some areas thereof. That concave geometry forms a labyrinth-like flow barrier for water.
- the louvers comprise a barrier wall at the lower louver face thereof, which barrier wall is angled with respect to the lower louver face and extends towards a rear side of the louvered grille.
- the barrier wall At this barrier wall, intruding water encounters resistance.
- the barrier wall starting from the center portion of the louvered grille, has a larger dimension in direction of the depth of the louvered grille than at the longitudinal ends thereof.
- the barrier wall has a larger wall height in the center portion of the louvered grille than in the lateral regions. This measure improves, on the one hand, resistivity against intruding spray water, on the other hand, the louver is effectively stiffened in its center portion, i.e. where the highest tensions within the material may be expected when mechanically stressed.
- the louvers have an upper edge extending in the widthwise direction of the louvered grille and a lower edge, also extending in the widthwise direction of the louvered grille. It is preferred that these two edges are embodied having curved contours, wherein the radii of the two curved contours are different from one another. Thereby, an improved removal of the water jet is supported. Additionally, the lower curved edge offers a dripping water edge to reliably conduct away flowing water drops without carrying away water droplets formed at the dripping edge by the air jet passing through the air passage openings.
- a filter mat is provided in the region of the rear face of the louvers which is spaced apart from the louvers, then an expansion space is created behind the louvers. Now, if a water jet penetrates between the louvers through the air passage openings, it is kept bundled between the louvers and then reaches the expansion space. Here, it de-tensions and loses its kinetic energy. The filter mat then offers sufficient resistivity to resist to the broken water jet. Thus, this measure effectively supports IP protection.
- a mat holder is integrally fitted to the rear face of the louvered grille into which the filter mat is inserted, then functionality of the louvered grille is expanded by simple constructive measures.
- the mat holder fixes the filter mat with respect to the louvers in a defined manner.
- a further functional extension may occur in that hinge seats are fitted to the lower face of the louvered grille.
- the louvered grille may be coupled to hinge pieces of the air filter housing, whereby a hinge axis results around which the louvered grille may be folded down.
- the rear face of the louvered grille and the interior of the air filter housing may be accessed for purposes of maintenance. For example, a filter mat may be replaced then.
- An appealing optical design results when it is provided that the hinge seats are covered by a screen extending in the widthwise direction of the louvered grille at a front face thereof.
- the louvered grille comprises a handled seat into which a handle is pivotably inserted.
- the handle serves as a locking aid when the louvered grille is situated in its put up operating position. With the aid of the handle, the louvered grille may be unlocked and be moved into a folded down mounting position, for example via the hinge joint to the air filter housing.
- FIG. 1 a louvered grille in a perspective front view
- FIG. 2 the louvered grille of FIG. 1 in a front view
- FIG. 3 a section along III-III illustrated in FIG. 2 ;
- FIG. 4 a section along IV-IV illustrated in the drawings.
- FIG. 5 a partial section along V-V illustrated in FIG. 2 .
- FIG. 1 shows a louvered grille comprising two side parts 10 spaced apart from another.
- side parts 10 comprise a wall section perpendicular to the rear face of the louvered grille which is embodied as a mat holder 12 .
- Convexly curved connection sections 11 merge into mat holder 12 which end as angled side walls 15 .
- Side walls 15 in turn are parallel to mat holder 12 .
- louvers 30 extend between side parts 10 . They extend between side parts 10 in widthwise direction of the louvered grille. Louvers 30 are embodied as strip-shaped material sections extending transversely to the vertical direction of the louvered grille, i.e. inclined to a rear face of the louvered grille. Louvers 30 are coupled to connecting sections 11 via walls 13 extending vertically to the rear side of the louvered grilles at their longitudinal ends. Louvers 30 are directly coupled to connecting sections 11 at their upper edges. Air passage openings are formed between louvers 11 and side parts 10 . Those air passage openings form an air guiding connection between the rear face of the louvered grille and the front face of the louvered grille.
- a bar 14 is formed to louvers 30 in the middle portion between the two side parts 10 . That bar interconnects individual louvers 30 and thus serves for mechanical stiffening.
- the louvered grille is, at its upper horizontal edge, finalized by means of a transfer bar 19 having a convexly curved surface.
- Transverse bar 19 connects the two side parts 10 .
- Another transverse bar 18 . 2 is arranged at the lower horizontal edge of the louvered grille, also interconnecting both side bars 10 .
- Transverse bar 18 . 2 comprises a screen 18 . 1 optically covering hinge seats 16 to the front face of the louvered grille.
- a terminal wall 17 is formed at screen 18 . 1 which is perpendicular to the rear face of the louvered grille.
- a handle seat 20 is formed into the louvered grille into which a handle 21 may be snapped in, wherein handle 21 may be pivoted around a horizontal pivot axis with respect to the louvered grille between a locking position and an unlocking position.
- Handle 21 comprises a manipulator 22 which is accessible via a handle recess 23 . Handle 21 may be gripped at manipulator 22 and can be unlocked.
- louvered grille is illustrated without handle 21 , so that handle seat 20 may be clearly recognized.
- FIG. 3 shows a section along III-III illustrated in FIG. 2 .
- bar 14 connects as a stiff wall all louvers 30 and is coupled to upper and lower transverse bars 19 , 18 . 2 at its longitudinal ends.
- mat holder 12 is formed by four wall pieces which are vertical to the rear face of the louvered grille as a continuous frame.
- a filter mat may be inserted into mat holder 12 . The filter mat abuts at bar 14 with its front face and is thereby kept spaced apart to the rear faces of the louvers 30 .
- louvers 30 have an upper louver face 31 and a lower louver face 32 .
- a barrier wall 33 is formed to the upper horizontal edge of louvers 30 , which barrier wall is vertical to the rear face of the louvered grille and extends towards the rear face of the louvered grille.
- Air passage openings are formed between the individual louvers 30 .
- both the upper louver side 31 and the lower louver side 32 are curved. Thereby, upper louver side 31 has a convex curvature and lower louver face 32 has a concave curvature.
- Upper louver face 31 has a concave curvature extending in the vertical direction of the louvered grille with a transverse radius R 3 , as illustrated in FIG. 4 .
- Lower louver face 32 has a concave curvature also extending in the vertical direction of the louvered grille.
- upper louver faces comprise a further convexity. This convexity extends in widthwise direction of the louvered grille, as may be seen in FIG. 5 .
- upper louver face 31 has a convex curvature which extends as a circular bend between side parts 10 . As illustrated in FIG.
- louvers 30 form a curved contour having an inner radius R 2 .
- the lower edges of louvers 30 form a circular arc having an outer radius R 3 .
- louvers 30 are convexly curved both in widthwise direction of the louvered direction and in the vertical direction of the louvered grille, and a dual crowned vertical curvature of louvers 30 results providing for radial atomization of a vertically impinging water jet onto louver 30 and thus improves IP protection. IP protection is further improved with the aid of barrier wall 33 . When a water jet of a steam cleaner is guided through the air passage openings, it directly impinges onto barrier wall 33 and is broken up.
- FIG. 4 illustrating the louvered grille in its vertical operating position, the water flows in the direction of gravity and impinges onto the lower horizontal mat holder 12 .
- An exit opening is formed between lower horizontal louver 30 and convexly curved transverse bar 18 . 2 through which draining water is discharged via screen 18 . 1 to the outer face of the louvered grille.
- transverse bar 18 . 2 is in its exterior view adapted to the design of the upper louver face 31 and has an identical contour.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention relates to a louvered grille for an air conduction housing, comprising a plurality of louvers which are spaced apart from one another to form air passage openings, wherein the louvers extend in the widthwise direction of the louvered grille and have an upper louver face that is directed to the exterior and inclined transversely with respect to the vertical direction of the louvered grille. For better IP protection of such a louvered grille, according to the invention the upper louver face of at least some of the louvers has a convex curvature in at least some areas of the louvers, both in the widthwise direction of the louvered grill and in the vertical direction of the louvered grille.
Description
- The invention relates to a louvered grille for an air conduction housing, comprising a plurality of louvers which are spaced apart from one another to form air passage openings, wherein the louvers extend in the widthwise direction of the louvered grille and have an upper louver face that is directed to the exterior and inclined transversely with respect to the vertical direction of the louvered grille.
- Louvered grilles of this type are known from the prior art. Louvers are used which extend inclined in the widthwise direction of the louvered grille between two supporting bars. The louvered grilles serve to cover air conduction housings which are inserted into an opening of a switchgear cabinet wall of a switchgear cabinet. The louvered grilles cover the air conduction housing to the exterior to offer a certain mechanical access protection. Rain water may be drained off along the inclined surface of the louvers, so that it cannot reach the interior of the switchgear cabinet. The so-called IP classification determines protection of the louvered grille. To this end, the resistivity encountered by the louvered grille against intruding objects mechanically on the one hand and against intruding humidity on the other hand, is stated. If a particularly high protection is required, it is necessary that the louvered grille resists to the impact of a steam cleaner acting from the exterior.
- It is the object of the invention to create a louvered grille of the type mentioned in the introductory by which high IP protection, in particular in view of the resistance against intruding humidity, may be realized.
- This object is achieved in that the upper louver face of at least some of the louvers has a convex curvature in at least some areas thereof, both in the widthwise direction of the louvered grille and in the vertical direction of the louvered grille. In this way, a dual convexly curved surface of the louver results. That convexity results in that an impinging water jet of a steam cleaner is atomized at the louver, so that it loses its kinetic energy. Thus, the strength of the steam jet is broken, and the risk of intruding water is considerably reduced.
- According to a preferred variant of the invention, it may be provided that the louvers are strip-shaped and, starting from a center portion thereof towards the longitudinal ends, slope in the vertical direction. In this way, a curved louver shape is provided, wherein water draining off the upper louver face is directed laterally to the edges of the louver. Thus, an improved draining off of water from the louver and an increased IP protection may be realized.
- A further preferred variant of the invention is such that the louvers have, at a lower louver face facing away from the upper louver face, a concave curvature in at least some areas thereof. That concave geometry forms a labyrinth-like flow barrier for water.
- In order to block intruding water which for example acts from a steam cleaner through passage openings formed between the louvers, a conceivable alternative of the invention provides that the louvers comprise a barrier wall at the lower louver face thereof, which barrier wall is angled with respect to the lower louver face and extends towards a rear side of the louvered grille. At this barrier wall, intruding water encounters resistance. It has proven to be particularly advantageous that the barrier wall, starting from the center portion of the louvered grille, has a larger dimension in direction of the depth of the louvered grille than at the longitudinal ends thereof. Thus, the barrier wall has a larger wall height in the center portion of the louvered grille than in the lateral regions. This measure improves, on the one hand, resistivity against intruding spray water, on the other hand, the louver is effectively stiffened in its center portion, i.e. where the highest tensions within the material may be expected when mechanically stressed.
- The louvers have an upper edge extending in the widthwise direction of the louvered grille and a lower edge, also extending in the widthwise direction of the louvered grille. It is preferred that these two edges are embodied having curved contours, wherein the radii of the two curved contours are different from one another. Thereby, an improved removal of the water jet is supported. Additionally, the lower curved edge offers a dripping water edge to reliably conduct away flowing water drops without carrying away water droplets formed at the dripping edge by the air jet passing through the air passage openings.
- If it is provided that a filter mat is provided in the region of the rear face of the louvers which is spaced apart from the louvers, then an expansion space is created behind the louvers. Now, if a water jet penetrates between the louvers through the air passage openings, it is kept bundled between the louvers and then reaches the expansion space. Here, it de-tensions and loses its kinetic energy. The filter mat then offers sufficient resistivity to resist to the broken water jet. Thus, this measure effectively supports IP protection.
- If it is provided that a mat holder is integrally fitted to the rear face of the louvered grille into which the filter mat is inserted, then functionality of the louvered grille is expanded by simple constructive measures. The mat holder fixes the filter mat with respect to the louvers in a defined manner.
- A further functional extension may occur in that hinge seats are fitted to the lower face of the louvered grille. By means of those hinge seats, the louvered grille may be coupled to hinge pieces of the air filter housing, whereby a hinge axis results around which the louvered grille may be folded down. Thus, the rear face of the louvered grille and the interior of the air filter housing may be accessed for purposes of maintenance. For example, a filter mat may be replaced then. An appealing optical design results when it is provided that the hinge seats are covered by a screen extending in the widthwise direction of the louvered grille at a front face thereof.
- Furthermore, it may be provided that the louvered grille comprises a handled seat into which a handle is pivotably inserted. The handle serves as a locking aid when the louvered grille is situated in its put up operating position. With the aid of the handle, the louvered grille may be unlocked and be moved into a folded down mounting position, for example via the hinge joint to the air filter housing.
- The invention will be explained in detail below with the aid of an exemplary embodiment illustrated in the drawings. It is shown in:
-
FIG. 1 a louvered grille in a perspective front view; -
FIG. 2 the louvered grille ofFIG. 1 in a front view; -
FIG. 3 a section along III-III illustrated inFIG. 2 ; -
FIG. 4 a section along IV-IV illustrated in the drawings; and -
FIG. 5 a partial section along V-V illustrated inFIG. 2 . -
FIG. 1 shows a louvered grille comprising twoside parts 10 spaced apart from another. As may be recognized inFIG. 5 ,side parts 10 comprise a wall section perpendicular to the rear face of the louvered grille which is embodied as amat holder 12. Convexlycurved connection sections 11 merge intomat holder 12 which end asangled side walls 15.Side walls 15 in turn are parallel tomat holder 12. - As may be further recognized from
FIG. 1 ,louvers 30 extend betweenside parts 10. They extend betweenside parts 10 in widthwise direction of the louvered grille.Louvers 30 are embodied as strip-shaped material sections extending transversely to the vertical direction of the louvered grille, i.e. inclined to a rear face of the louvered grille.Louvers 30 are coupled to connectingsections 11 viawalls 13 extending vertically to the rear side of the louvered grilles at their longitudinal ends.Louvers 30 are directly coupled to connectingsections 11 at their upper edges. Air passage openings are formed betweenlouvers 11 andside parts 10. Those air passage openings form an air guiding connection between the rear face of the louvered grille and the front face of the louvered grille. Abar 14 is formed tolouvers 30 in the middle portion between the twoside parts 10. That bar interconnectsindividual louvers 30 and thus serves for mechanical stiffening. The louvered grille is, at its upper horizontal edge, finalized by means of atransfer bar 19 having a convexly curved surface. Transversebar 19 connects the twoside parts 10. Another transverse bar 18.2 is arranged at the lower horizontal edge of the louvered grille, also interconnecting both side bars 10. Transverse bar 18.2 comprises a screen 18.1 optically covering hinge seats 16 to the front face of the louvered grille. Aterminal wall 17 is formed at screen 18.1 which is perpendicular to the rear face of the louvered grille. At the upper edge region, ahandle seat 20 is formed into the louvered grille into which ahandle 21 may be snapped in, wherein handle 21 may be pivoted around a horizontal pivot axis with respect to the louvered grille between a locking position and an unlocking position.Handle 21 comprises amanipulator 22 which is accessible via ahandle recess 23.Handle 21 may be gripped atmanipulator 22 and can be unlocked. - In
FIG. 2 , the louvered grille is illustrated withouthandle 21, so thathandle seat 20 may be clearly recognized. -
FIG. 3 shows a section along III-III illustrated inFIG. 2 . As apparent from this illustration,bar 14 connects as a stiff wall alllouvers 30 and is coupled to upper and lowertransverse bars 19, 18.2 at its longitudinal ends. Further, it may be recognized from this illustration thatmat holder 12 is formed by four wall pieces which are vertical to the rear face of the louvered grille as a continuous frame. A filter mat, not illustrated in the drawing, may be inserted intomat holder 12. The filter mat abuts atbar 14 with its front face and is thereby kept spaced apart to the rear faces of thelouvers 30. - The geometry of
louvers 30 is illustrated in detail inFIG. 4 . As may be recognized from this illustration,louvers 30 have anupper louver face 31 and alower louver face 32. Abarrier wall 33 is formed to the upper horizontal edge oflouvers 30, which barrier wall is vertical to the rear face of the louvered grille and extends towards the rear face of the louvered grille. Air passage openings are formed between theindividual louvers 30. As further illustrated inFIG. 4 , both theupper louver side 31 and thelower louver side 32 are curved. Thereby,upper louver side 31 has a convex curvature andlower louver face 32 has a concave curvature.Upper louver face 31 has a concave curvature extending in the vertical direction of the louvered grille with a transverse radius R3, as illustrated inFIG. 4 .Lower louver face 32 has a concave curvature also extending in the vertical direction of the louvered grille. In addition to these convex curvatures oflower louver face 31 extending in the vertical direction of the louvered grille, upper louver faces comprise a further convexity. This convexity extends in widthwise direction of the louvered grille, as may be seen inFIG. 5 . Accordingly,upper louver face 31 has a convex curvature which extends as a circular bend betweenside parts 10. As illustrated inFIG. 5 , the upper edges oflouvers 30 form a curved contour having an inner radius R2. The lower edges oflouvers 30 form a circular arc having an outer radius R3. Having outer radius R2 and inner radius R1,louvers 30 are convexly curved both in widthwise direction of the louvered direction and in the vertical direction of the louvered grille, and a dual crowned vertical curvature oflouvers 30 results providing for radial atomization of a vertically impinging water jet ontolouver 30 and thus improves IP protection. IP protection is further improved with the aid ofbarrier wall 33. When a water jet of a steam cleaner is guided through the air passage openings, it directly impinges ontobarrier wall 33 and is broken up. Thereby, it loses its kinetic energy and can be drained off in the direction of the gravity within the filter mat supported bymat holders 12 in a reliable manner. As can be recognized inFIG. 4 illustrating the louvered grille in its vertical operating position, the water flows in the direction of gravity and impinges onto the lowerhorizontal mat holder 12. An exit opening is formed between lowerhorizontal louver 30 and convexly curved transverse bar 18.2 through which draining water is discharged via screen 18.1 to the outer face of the louvered grille. As can be recognized inFIG. 4 , to improve the look, transverse bar 18.2 is in its exterior view adapted to the design of theupper louver face 31 and has an identical contour. Thus, a continuous look of louvered grille is achieved.
Claims (11)
1-11. (canceled)
12. A louvered grille for air conduction housings mounted in openings of switchgear cabinets, comprising a plurality of louvers which are spaced apart from another to form air passage openings, wherein the louvers extend in the widthwise direction of the louvered grille and have an upper louver face that is directed to the exterior and inclined transversely with respect to the vertical direction of the louvered grille, wherein the upper louver face of at least some of the louvers has a convex curvature in at least some areas thereof, both in the widthwise direction of the louvered grill (outer radius (R2) or inner radius (R1), respectively) and in the vertical direction of the louvered grille (transverse radius (R3)), the louvers comprising a barrier wall at the lower louver face thereof, which barrier wall is fitted to the upper horizontal edge of the louvers and is angled with respect to the lower louver face and extends towards a rear side of the louvered grille.
13. The louvered grille of claim 12 , wherein the louvers are strip-shaped and, starting from a center portion thereof towards the longitudinal ends (vertical direction of the louvered grille), slope in the direction of gravity.
14. The louvered grille of claim 12 , wherein the louvers have, at a lower louver face facing away from the upper louver face, a concave curvature in at least some areas thereof.
15. The louvered grille of claim 12 , wherein the barrier wall, starting from the center portion of the louvered grille, has a larger dimension in direction of the depth of the louvered grille than at the longitudinal ends thereof.
16. The louvered grille of claim 12 , wherein the louvers have a curved contour at their edges extending in the widthwise direction, wherein the radii (inner radius (R1) and outer radius (R2)) of the two curved contours are different from another.
17. The louvered grille of claim 12 , wherein a filter mat is provided in the region of the rear face of the louvers which is spaced apart from the louvers.
18. The louvered grill of claim 17 , wherein a mat holder is integrally fitted to the rear face of the louvered grille, into which the filter mat is inserted.
19. The louvered grille of claim 12 , wherein hinge seats are fitted to the lower face of the louvered grille.
20. The louvered grille of claim 19 , wherein the hinge seats are covered by a screen extending in the widthwise direction of the louvered grille at a front face thereof.
21. The louvered grille of claim 12 , further comprising a handle seat into which a handle is pivotally inserted.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010016505.0 | 2010-04-19 | ||
DE102010016505A DE102010016505A1 (en) | 2010-04-19 | 2010-04-19 | louvred grille |
PCT/EP2011/053898 WO2011131425A1 (en) | 2010-04-19 | 2011-03-15 | Louvered grille |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130035032A1 true US20130035032A1 (en) | 2013-02-07 |
Family
ID=44368257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/261,473 Abandoned US20130035032A1 (en) | 2010-04-19 | 2011-03-15 | Louvered grill |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130035032A1 (en) |
EP (1) | EP2561740B1 (en) |
CN (1) | CN102948270B (en) |
DE (1) | DE102010016505A1 (en) |
ES (1) | ES2526391T3 (en) |
WO (1) | WO2011131425A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US20130067875A1 (en) * | 2010-04-19 | 2013-03-21 | Rittal Gmbh & Co. Kg | Filter unit for a switchgear cabinet |
USD739928S1 (en) | 2014-01-23 | 2015-09-29 | Hoffman Enclosures, Inc. | Air conditioner cover |
USD803365S1 (en) | 2015-09-29 | 2017-11-21 | Hoffman Enclosures, Inc. | Air conditioner |
US10512866B2 (en) | 2016-02-16 | 2019-12-24 | Hoffman Enclosures, Inc. | Filter housing for filter fan |
US10631688B2 (en) | 2017-04-27 | 2020-04-28 | MULTIPOND Wägetechnik GmbH | Grid flap |
US10960334B2 (en) * | 2017-10-26 | 2021-03-30 | Jeffrey Corbett | Magnetic closure system for HVAC filter grilles and method of use |
US11890651B2 (en) | 2019-10-24 | 2024-02-06 | Andreas Stihl Ag & Co. Kg | Venting device with splash guard and power tool with such a venting device |
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CN106731261A (en) * | 2016-11-25 | 2017-05-31 | 广东百能堡科技有限公司 | A kind of novel filter net modular construction |
CN110333322B (en) * | 2019-07-31 | 2022-01-21 | 安徽天分仪表有限公司 | Explosion-proof zirconia oxygen probe |
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ITBO20030046U1 (en) * | 2003-04-18 | 2004-10-19 | Azerre S A | INTEGRATED CABINET FOR THE SERVICES OF A TELECOMMUNICATION CENTRAL |
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-
2010
- 2010-04-19 DE DE102010016505A patent/DE102010016505A1/en not_active Ceased
-
2011
- 2011-03-15 ES ES11711492.6T patent/ES2526391T3/en active Active
- 2011-03-15 CN CN201180028454.4A patent/CN102948270B/en active Active
- 2011-03-15 US US13/261,473 patent/US20130035032A1/en not_active Abandoned
- 2011-03-15 EP EP11711492.6A patent/EP2561740B1/en active Active
- 2011-03-15 WO PCT/EP2011/053898 patent/WO2011131425A1/en active Application Filing
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DE19700065A1 (en) * | 1996-11-15 | 1998-05-28 | Pfannenberg Otto Gmbh | Filter extractor or outlet filter for building into wall of switch cabinet for electronic control devices and circuits |
US20030026074A1 (en) * | 2001-07-31 | 2003-02-06 | Clements Bradley E. | Externally mounted on-line replaceable fan module |
DE10350294B4 (en) * | 2002-10-24 | 2007-12-20 | Decoma (Germany) Gmbh | Radiator grill assembly for a motor vehicle |
US7827816B2 (en) * | 2006-05-09 | 2010-11-09 | Carrier Corporation | Front cover for transport refrigeration unit |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130067875A1 (en) * | 2010-04-19 | 2013-03-21 | Rittal Gmbh & Co. Kg | Filter unit for a switchgear cabinet |
US9237674B2 (en) * | 2010-04-19 | 2016-01-12 | Rittal Gmbh & Co. Kg | Filter unit for a switchgear cabinet |
USD739928S1 (en) | 2014-01-23 | 2015-09-29 | Hoffman Enclosures, Inc. | Air conditioner cover |
USD803365S1 (en) | 2015-09-29 | 2017-11-21 | Hoffman Enclosures, Inc. | Air conditioner |
US10512866B2 (en) | 2016-02-16 | 2019-12-24 | Hoffman Enclosures, Inc. | Filter housing for filter fan |
US10631688B2 (en) | 2017-04-27 | 2020-04-28 | MULTIPOND Wägetechnik GmbH | Grid flap |
US10960334B2 (en) * | 2017-10-26 | 2021-03-30 | Jeffrey Corbett | Magnetic closure system for HVAC filter grilles and method of use |
US11890651B2 (en) | 2019-10-24 | 2024-02-06 | Andreas Stihl Ag & Co. Kg | Venting device with splash guard and power tool with such a venting device |
Also Published As
Publication number | Publication date |
---|---|
CN102948270B (en) | 2015-04-29 |
EP2561740A1 (en) | 2013-02-27 |
CN102948270A (en) | 2013-02-27 |
ES2526391T3 (en) | 2015-01-12 |
WO2011131425A1 (en) | 2011-10-27 |
EP2561740B1 (en) | 2014-11-19 |
DE102010016505A1 (en) | 2011-10-20 |
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Legal Events
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AS | Assignment |
Owner name: RITTAL GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHNEIDER, STEFAN;WAGNER, STEFFEN;HARTMANN, REINER;SIGNING DATES FROM 20120827 TO 20120829;REEL/FRAME:029753/0683 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |