DE1607667A1 - Gas filter holder - Google Patents

Description

p-aentanwälte

r, scl. Ing- V / alter Meissner Munich, January 9, 1968

he

Munich 2, valley 71

.American Air Filter Company Inc.,
Louisville, Kentucky (V.St.A ")

Gas filter holder

The invention relates to a gas filter holding device with a frame and at least two grids attached parallel to one another on the frame, which frame is for receiving a gas filter and the grilles to rest on both sides are determined on the gas filter, with at least one grid pivotably articulated on the frame or designed to be removable is to bring it into or out of said position by means of struts attached to the frame.

The object of the invention is to create a holding device with which gas filters of different thicknesses kept in a simple manner and easy against others can be exchanged «

This object is achieved according to the invention in that the notches arranged on the frame for the optional setting of various parallel distances between the
Grids are multi-level *

Due to the multi-level training of the notches,
the pivoting grid can easily be brought into different parallel positions to the frame-fixed grid ', bo that

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gas filter layers of different thicknesses used in the frame can be «It is advantageous to place the catches on the frame in different places one below the other be designed the same, so that the pivotable grille optionally on two opposite Sides of a rectangular frame can be hinged.

So that the gas filter to be inserted seals on the frame is held, the latter expediently has a flat contact surface o That in the vicinity of this contact surface Lattice fixed to the frame can then advantageously be inserted in the openings of a U-shaped bend be used flat frame contact surface.

An exemplary embodiment of the subject matter of the invention is shown in the drawing. Show it:

! ig »1 part of a holding device

without the filter in perspective view;

Fig. 2 is a section along the line II-II of FIG. 1 without multi-stage notches;

Figure 5 is a top plan view of the pivotable on the frame hinged grille;

Figure 4 is a section through one of the notches

having sheet metal with frame wall and

FIG. 5 shows a section along the line V-V of FIG.

The frame 1 is rectangular, preferably square, and its four frame parts have those shown in FIG

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Cross-sectional shape on · The depth of the frame, i.e. the Width of the frame wall 2 corresponds essentially to the greatest thickness of a Gaefilters used Frame wall 2 is followed by an inwardly protruding contact surface 3 for a gas filter. The surface 3 is Part of a U-shaped bend 4- ·

On two opposite frame walls 2, two deformed metal sheets 6, ζ · Β · by spot welding, are attached (Pig · 3 * 4-) · The cross-sectional shape of the metal sheet 6 can be seen from FIGS represents a multi-stage notch or a hinge for a swiveling grid 7All four sheets 6 are of the same design and in the example have five openings 8 and six bulges 9.These sheets 6 are shaped ₉ in such a way that longitudinal slots are punched in a flat sheet which are parallel to each other, and that the webs between the punchings are then pushed out of the plane of the sheet.Each sheet 6 rests on the frame wall 2 with two spaced surfaces.Thus, an undercut catch for a wire forms between each two bulges 9 of the grid 7 (Fig. 5) In Fig. 1, a development 1o of a grid wire for the pivoting articulation of the grid 7 is clamped in such a notch (Fig. 1 and 3).

The pivotally hinged to the frame 1 grid 7 and in D _u rchbrüche the U Örmigen Abkröpf ung 4- protruding frame fixed grating 5 consists of individual wires which are angeechweisst or at their right-angled intersection together soldered · are During grid 5, only rectangular Kreüzungsstellen the Grating bars available · The grating 5 is detachably inserted in the frame 1

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two opposite frame walls 2 each with two recesses 11 attached (Fig · 1) · In the two bends 4 of the other two frame sides, only one recess 11 is provided in the middle of the respective frame side. Several wire ends 12 of the grid 5 rest on the outside of the frame (Pig * 1). A total of six wire ends 13 of the grid 5, however, are inserted through the openings 11 into the U-shaped bends 4 (Fig and 2) · The wire ends of the grid 5 thereby become something bent out of the lattice plane and the wire ends of the lattice are elastically braced against each other. The lattice 5 is thus resiliently held in the frame 1 and can by a resilient deflection from the lattice level in the taps are inserted and removed from it "

The wires of the grid 7 are connected to one another at all crossing points which are perpendicular to one another. The wire bracket 14 of the grid 7 is only at the points 15 $ 16 and 17 with the other crossing Bars connected by welding or soldering · The bracket 14 can therefore be somewhat elastic, resiliently deformed The bracket 14. has two over a lattice wire 18 protruding studs 19 (FIG. 3) by applying forces at two points on the wire bracket 14 in the direction of the arrows 2o the cleats 19 can be displaced in an elastically resilient manner up to approximately the wire 18 of the grid 7 of the pivotable grid 7 can be snapped into one of the openings 9 of the metal sheets 6. The grid 7 is then attached to the frame so that it can be swiveled

Depending on the thickness of the gas filter to be used, one of the is used to attach the grille 7 to the frame 1 Openings 8 of the four sheets 6 are used. After inserting a gas filter into the frame «with the gas filter layer is applied to the four flat walls 9 of the frame »

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the swiveling wire mesh? inserted into those bastions of the sheet metal 6, so that when the grid 7 is unsehwenkbaren attaching to the frame of this grid? then rests on the gas filter layer * Sas inserting the bends 1o of the wire mesh 7 into the respective Bastening the two metal sheets 6 and also inserting the studs 19 of the wire bracket 14 into the corresponding ones Basten the other two sheets 6 as well as the insertion of the wire mesh 5 in the tracks 1 can simply without Tool done by hand

If, for example, two different gas filter layers with an intermediate grid (not shown) in the Frame 1 can be held so that two can be pivoted Doors 7 are fastened to the frame · When these three grids are then fixed to the frame 1 in such a way that they cannot be swiveled « are they parallel to each other and e.g. at different distances

Should several frames 1 next to each other in one Are arranged lying flat, so these frames 1 by means of their U-shaped bends 4 on a common carrier rail attached bsw «can be pushed into two opposite carrier rails * Hehrere Frames 1 lying in one plane can also be moved by metal sheets lying in their U-shaped bends 4 Kind of Faljs-Wanden are held in one plane, whereby then all frames 1 are still surrounded by a »Ifontagerrahmen, which also in the U-shaped bends intervenes and this game »made up of several. Bohemia 1 existing Unit can then be a piece of the filter wall in a liaison opening will be used »·

Through every bleoh attached to Bahmenwanä 2 two butes 21 are formed (Jig. 4-) · In these grooves cannot be shown «Terminals for additional« filter «*

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«" Ο -,

layers or ζ · Β · a Xraggestell for not shown
Filter bags are attached · Bine attachment of these
Additional means on the frame can also be done by inserting webs into the spaces 22 of the sheets 6, if the developments 1o and the cleats 19 of the wires of the grid 7 allow (Fie

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Claims (6)

PatentanwSIfS "~ - Dipl. Ing.Waiter Meissner Munich ₉ 9 January 1968 Dipl. Ing. Herbert Tischer
Office Muηctien
Munich 2, TaI 7T Claims Gas filter holder with a frame and at least two grids that can be fastened parallel to one another on the frame, which frame for receiving a gas filter and the grilles to rest on both sides of the gas filter are determined, wherein at least one grid is pivotably articulated on the frame or removable to it by means of to bring notches attached to the frame into or out of the stated position, characterized in that that the notches (6,8,9) arranged on the frame (1) for the optional setting of different parallel distances between the grids (5,7) are multi-level 2. Holding device according to claim 1, characterized in that the frame (1) for application on the filter surface of the gas filter has certain flat surfaces (3) on which U-shaped bends (4) that are open to the outside of the frame, and that the Q & first web of the U-shape has openings (11), for the resilient insertion of the rod ends (13) of a rod consisting of rods, elastically deformable in the frame (1), loosely inserted grid (5). 3 β holding device according to claim 1, characterized gekennzeichne t that in the inside of the frame (1) several multi-stage notches (8,9) having Sheets (6) are attached and in each sheet several parallel openings (8) and between 909840/0864 recessed bulges (9) are available for the clamp-like, releasable latching of the pivotable grid (7) into the openings located between the bulges, on the one hand for the pivotable articulation of the grille (7) and on the other hand for the pivotable attachment of the grille (7) on the frame (1) * 4. Holding device according to claims 1 and 2, characterized in that the U-shaped bend (4-) runs around the whole frame (1) and is used to slide onto a carrier 5 · Holding device according to claim. 3, characterized in that both the pivotable Storage as well as for locking the pivotable grid (7) under one another of identically designed metal sheets (6) are. 6. Holding device according to claim 3, characterized gekennzeicL.net that the one exhibiting the notches Sheet metal (6) rests against a frame wall (2) with two spaced surfaces, between these! Sheet metal to form the undercut bulges (9) from the frame wall (2) protrudes, and that two opposite sheet metal ends are bent to form grooves (21) between the sheet metal ends and the frame wall (2). 909840/08