Description:F O R M 2

THE PATENTS ACT, 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)

1. Title of the invention. –SCREENING PANELS ARRANGEMENT

2. Applicant(s)

(a) NAME : : TEGA INDUSTRIES LIMITED

(b) NATIONALITY : INDIAN.

(c) ADDRESS : 147, BLOCK – G, NEW ALIPORE, KOLKATA – 700 053

PREAMBLE TO THE DESCRIPTION

The following specification particularly describes the invention and the manner in which it is to be performed:

SCREENING PANELS ARRANGEMENT
FIELD OF INVENTION
The present invention, relates to screening panels for screening / separating or grading of minerals in the mining and quarrying industries with the screen deck by a locking arrangement for ease of installation and dismantling during operation within the stipulated downtime and in particular to screen panels equipped with replaceable wearing/functional sections.

BACKGROUND ART

The screening panel system for ore screening decks that is now widely used by the mining industry, replaced the earlier screening cloths and large wire screening frames. These screening panels are known to be either of Rubber or Polyurethane with steel reinforcements. It is also known that such panels are manufactured by a hot vulcanized method or casting. The panels are adapted to be secured with the support frame of the screen machine by bolting/welding. The panels may also be secured to the frame with an alternate method using a pin and separate lug arrangement. A difficulty encountered in using these panels is the time consumed during installation and removal of the panels at the site. This affects the overall shutdown and maintenance time. Accordingly, there was a long-felt need to design improved locking systems of screen panels with the bucker up frames as the new method of easy installation and removal of the panels for its application in mining and quarrying industries, which have replaceable wearing/functional sections and which are lightweight, easy to handle and have substantially low manufacturing cost. The present invention meets the aforesaid long-felt need. Throughout the specification including the claims, the words "screen panel", "mining", "quarrying", "mineral", "ores", "abrasion resistant", "wear-resistant", "sections", "zones", "wear zone/section", "reinforcement zone/section" are to be interpreted in the broadest sense of the respective terms and includes all similar items in the field known by other terms, as may be clear to persons skilled in the art. Restriction/limitation, if any, referred to in the specification, is solely by way of example and understanding the present invention.

In the prior art, there is provided an Indian application 558/KOL/2010 (US9149841B2) from the applicants themselves discloses a screen panel for mining and quarrying industries adapted to be mounted on a screen deck including a wear section (2) and a reinforcement section (1), said wear section (2) comprising a screening surface made up of materials formed on said reinforcement section (1) such as herein described, said wear section being the top portion of said panel and said reinforcement section being the bottom portion of said panel, said wear section and said reinforcement section being separate units and said wear section being adapted (4) to be replaceable from time to time, for ensuring smooth functioning of screening operation.

In another prior art, there is provided an US application US20060108264A1 discloses a screening support frame for use with modular screening systems. The frame comprises an attachment bar and a plurality of housings. Each attachment bar comprises one or more notches. Each housing is adapted to be lockingly received by a notch of an attachment bar. Also, each housing is adapted to releasably receive one or more legs from one or more screen panels.

In another prior art an US Patent No. 5,398,817 utilizes an elongated bolting bar which is encased in a resilient material and which includes an elongated center retainer. The center retainer assembly of this patent is placed into an upwardly facing retainer channel and is secured to the retainer channel by placement of the bolts carried by the bolting bar through holes in the retainer channel.

In another prior art an US Patent No. 6,964,341 discloses screen panels which are held in place by screen panel edge strips which have pockets on their undersurfaces. Those pockets are cooperatively shaped to receive a plurality of ears that are situated on upper surfaces of retainer bars.

In yet another prior art an US Patent No.7,717,269, discloses a snap lock separatory panel retainer system as well as a separatory panel which is usable with the retainer system. Elongated locking strips are used to engage locking profiles on the separatory screen panels. Those locking strips utilize undercut receptacles to receive enlarged heads of retainer pins that are formed integrally with center retainer strips.

OBJECT OF INVENTION

The main objective of the present invention is to reduce the installation and dismantling time of the Screen Panelusingof providing very simple fixing. This will solve both the purpose of holding the screen panels firmly and at the same time it will be very easy to install and dismantle

Another object of the invention is to facilitate the individual dismantling of the screen panel at the time of replacement.

It is a further object, is to provide the fixing means which can last longer without getting affected frequently.

It is a further object of the present invention to provide a locking twist cap configured to lock the pin from top configured for retaining the screen panel.

Another object of the present invention is to provide a locking twist cap and pin arrangement that uses a minimum number of components.

A further object of the present invention is to provide locking twist cap configured to lock the pin from top that is usable with a number of different vibrating separatory machines.

Still another object of the present invention is to provide a locking twist cap configured to lock the pin from top which does not reduce the working surface areas of the screen panels with which it is used.

Yet a further object of the present invention is to provide a locking twist cap configured to lock the pin from top which is easy to use and which is cost effective.

Further objects will be pronounced in the following paragraphs.

SUMMARY OF INVENTION

An arrangement for locking the screen panel (figure A.1 and figure B.1) for mining and quarrying industries with the screen deck by a locking arrangement (figure 8 and figure 9) for ease of installation and dismantling during operation within the stipulated downtime.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS

To assist in understanding the invention different embodiments of the present invention common reference are used to describe like features.

Figure 1(a) shows the first embodiment of the Screen panel’s assembly, with panel (A1) and screen support (Q) in accordance with the present invention;

Figure 1(b) shows the side view of the first embodiment of the Screen panel’s assembly of Figure 1(a), with screen support (Q) in accordance with the present invention;

Figure 2 (a) shows the second embodiment of the Screen panel’s assembly, with panel (B) and screen support (Q) in accordance with the present invention;

Figure 2 (b) shows the side view of the second embodiment of the Screen panel’s assembly of Figure 2 (a) in accordance with the present invention;

Figure 2 (c) shows the screen panel of the first embodiment of the Screen panel’s assembly of Figure 1(a), with fixing location (O) at the four corners of the screen panel in accordance with the present invention;

Figure 2(d) shows the side view of the screen panel of Figure 2(c), with fixing location (O) in accordance with the present invention;

Figure 2(e) shows the isometric view of the screen panel of Figure 2(c) in accordance with the present invention;

Figure B.1 shows the screen panel of the second embodiment of the Screen panel’s assembly of Figure 2.1, with fixing location (P) two on each side of the panel in accordance with the present invention;

Figure B.2 shows the side view of the screen panel of Figure B.1, with fixing location (P) on the side in accordance with the present invention;

Figure C.1 shows the Screen fixing means/adaptor bar of the first embodiment of the Screen panel’s assembly of Figure 1.1, with the extruded part (M) in accordance with the present invention;

Figure C.2 shows the isometric view of the Screen fixing means/adaptor bar of Figure C.1, with the extruded part (M) in accordance with the present invention;

Figure D.1 shows the Screen fixing means/adaptor bar ofsecondecond embodiment of the Screen panel’s assembly of Figure 2.1, with the extruded part (N) in accordance with the present invention;

Figure D.2 shows the isometric view of the Screen fixing means/adaptor bar of Figure D.1, with the extruded part (M) in accordance with the present invention;

Figure 3 shows the enlarged isometric view the figure C.2 with screen panels as per figure A.1/B.1 mounted on the screen fixing means/adaptor bar and also with the fixing means (Q) in accordance with the present invention;

Figure E.1 shows the extruded portion of Screen fixing means/adaptor bar of figure C.1, and also the slot (I) in accordance with the present invention;

Figure F.1 shows the extruded portion of Screen fixing means/adaptor bar of figure D.1 with extruded part (J) in accordance with the present invention;

Figure G.1 shows the isometric view of Cap of the first embodiment of the screen panel assembly of figure 1.1, along with the groove (R) to hold the cap while rotating in accordance with the present invention;

Figure G.2 shows the cross-sectional view of the Cap of figure G.1, along with the extruded part (K) inside the vertical inner surface of the cap in accordance with the present invention;

Figure G.3 shows the bottom view of the Cap of figure G.1, along with the extruded part (K) inside the vertical inner surface of the cap in accordance with the present invention;

Figure G.4 shows the top view of the Cap of figure G.1 in accordance with the present invention;

Figure H.1 shows the top view of Cap of the second embodiment of the screen panel assembly of figure 2.1 in accordance with the present invention;

Figure H.2 shows the top view of Cap the of the second embodiment of the screen panel assembly with additional groove for holding the cap for rotation, along with the groove (S) to hold the cap while rotating in accordance with the present invention;

Figure H.3 shows the Side view of the Cap of figure G.1 with slot/groove (L) in accordance with the present invention;

Figure 4 shows cross-sectionalnal view he figures 2.2 ) in accordance with the present invention;

Figure 5 shows the isometric view of the first embodiment of the Screen panel’s assembly of Figure 1.1, with the screen panel A.1 in accordance with the present invention;

Figure 6 shows the enlarged cross-sectional of the second embodiment of the Screen panel’s assembly of Figure 2.1, with the screen panel B.1 in accordance with the present invention;

Figure 7 shows the enlarged view of the fixing of the first embodiment of the Screen panel’s assembly of Figure 1.1 additionally with the cap of figure G.1 and the motion to be applied on the cap to fix it with the screen fixing means/adaptor bar of figure C.1, along with the screen support (Q) in accordance with the present invention;

Figure 8 shows the assembly of the cap when the desired rotational and translational motion is achieved and the panels are self-locked with the help of cap figure G.1 and the screen fixing means/adaptor bar of figure C.1, along with the cap of figure G.1 in accordance with the present invention;

Figure 9 shows the enlarged view of the fixing of the second embodiment of the Screen panel’s assembly of Figure 2.1 additionally with the cap of figure H.3 and the motion to be applied on the cap to fix it with the screen fixing means/adaptor bar of figure F.1 in accordance with the present invention;

Fig 9(a) also shows the desired rotational and translational motion is achieved and the panels are self-locked with the help of cap figure H.3 and the screen fixing means/adaptor bar of figure D.1, It also shows the notches to hold the cap at the time of rotating the cap (R) in accordance with the present invention;

Figure 10 shows the isometric view of the screen panel assembly of the second embodiment along with screen Panels (2.1) and screen support (Q) in accordance with the present invention;

DETAILED DESCRIPTION

It is traditionally known that screen panels basically comprise a ear/functional section, a reinforcement section and a retaining section . These sections are also commonly referred to as wear zones, reinforcement zones and locking / retaining zones in the art of screening in mining and quarrying industries. Traditionally, the functional zones and reinforcement zones are homogeneous and integral with one another or in other words, are made in one piece. Thus, after some time when the apertures get weared due to abrasion, the whole screen panel has to be changed, which renders the entire operation costly and inconvenient.The wear zones include screening surface/area with abrasion resistant apertures. The reinforcement zone comprises the reinforcement frame, which is eventually mounted on the machine frame and the locking zones / pins are configure to lock the panels over a frame efficiently so that it can handle vibration and can be easily unlokable.

The Screen Panel Figure (A.1/B.1) Arrangement is shown in Figure (1.1/2.1) is mounted on-screen support (Q) and the Screen Panel Figure (A.1/B.1) is held on the screen fixing means/adaptor bar Figure (C.1/D.1) with a Cap Figure (G.1/H.3) which has the groove/extruded portion (I/J) on it, the locking arrangement in the screen fixing means/adaptor bar Figure (C.1/D.1) will have the extruded/groove (K/L). The Cap Figure (G.1/H.3)has to be rotated by a certain degree to lock the arrangement and secure the panels in their position as shown in (figure 8/9)

The vertical extruded portion (M/N) in the Screen fixing means/adaptor bar Figure (C.1/D.1),willl have a predetermined location (O/P) that will receive the Screen Panel Figure (A.1/B.1)and it will have the same number of the predetermined location (O/P) for fixing. The predetermined location (O/P) on the Screen panel Figure (A.1/B.1)and the Screen fixing means/adaptor bar Figure (C.1/D.1)for fixing can have the following position, Numbers, and geometries:
a. On the edge of the panel(O/P) or in the gap between the Apertures present on the panel (A.1/B.1) having tog counter semicircular or counter rectangular opening or other geometries contour.

b. Above mentioned, the number of predetermined locations (O/P) on the Screen fixing means/adaptor bar Figure (C.1/D.1)and the Screen Panel Figure (A.1/B.1)is mentioned the same, but as per requirement and availability, this number can be more or less than the other. So, in Figure (C.1/D.1)only two numbers of predetermined extruded location(M/N) but this number can vary in both Screen Panel Figure (A.1/B.1) and Screen fixing means/adaptor bar Figure (C.1/D.1)
c. Also the predetermined locations (M/N) on both Screen fixing means/adaptor bar Figure (C.1/D.1) and the Screen Panel Figure (A.1/B.1) we can change its relative distance between the extruded portions/bore (M/N) as per requirement.
d. The geometry of the vertical extruded portion on the Screen fixing means/adaptor bar Figure (C.1/D.1)can be circular/rectangular/other cross-section.
e. In the vertical surface of the Screen fixing means/adaptor bar Figure (C.1/D.1), the locking arrangement is provided (I/J), the locking arrangement (I/J) can be an extruded part (J)or horizontal/aligned bore (I) on the vertical surface. The number of such arrangements of an extruded portion ( J) or bores (I) can be placed on the same plane or a different plane With respect to the horizontal plane and in this figure (D.1/D.2/C.1/C.2) shows two numbers of such extruded portion (J) and two number of Bore (I) in figure (E.1)on the same plane but its number and position can change as per the requirement.

The Screen fixing means/adaptor bar Figure (C.1/D.1)receives the Cap (Figure G.1/H.3), the Cap (Figure G.1/H.3) is rotated to accommodate the projected/bore (K/L) parts in the bore/slot/Extruded part (I/J)of the screen fixing means/adaptor bar (C.1/D.1). Further, the screen fixing means/adaptor bar Figure (C.1/D.1)is fixed with the screen support (Q) using welding / bolting / any other male and female locking arrangement. The material of construction of both the Screen fixing means/adaptor bar Figure (C.1/D.1)and the Cap Figure (G.1/H.3)can be metallic or nonmetallic.

For easy installation and dismantling there is a provision of the groove(R/S)in (figure G.1/H.2), which facilitates unhindered rotation of the Cap Figure (G.1/H.3) when external means are used to rotate it. The said Cap Figure (G.1/H.3), its groove/extruded part (L/K) has vertical/horizontal slots/extruded part on the vertical face as shown in (figure H.3/G.2) which is in contact with the panel (figure 8/9) and has geometries features as follows:
a. The vertical/horizontal/angular slot in the Cap (Figure G.1/H.3) is provided to allow the extruded part (J) of the Screen fixing means/adaptor bar (Figure F.1/D.1) slide and reach the horizontal slot (L).
b. The horizontal slot (L) will be the diverging-converging type which will constraint the Screen fixing means/adaptor bar Figure (F.1/D.1)to its locking position i.e in the horizontal slot (L)
c. The Vertical/horizontal/angular extruded part (K) in the cap (figure G.2) is provided to slide in the slot (I) in the screen fixing means/adaptor bar (C.1) and by rotating the Cap (G.2) the interlocking is achieved.
The first embodiment of a screen panel fixing shown in figure 1.1 consists of screen panels (figure A.1), adopter bar (figure C.1), the extruded portion in the adaptor bar (figure E.1), Cap (figure G.1) the fixing sequence for the first embodiment follows the below mentioned steps:

First, the adaptor bar (figure C.1) is fixed to the vibratory screen using welding/bolting/snap type fixing, when the adaptor bar (figure C.1) is fixed and aligned side by side the panels (figure A.1) is then kept above the adaptor bar (figure C.1) keeping in mind the extruded pins (figure E.1) align to the fixing location to the panels (O) when the panels (figure A.1) are positioned it makes the way for the cap (figure G.1) to align itself and position to the slot (I) present in the pin (figure E.1) this whole arrangement is shown in (figure 7). As the cap’s (figure G.1) extruded portion (K) is in the slot (I) of the pin (figure E.1) the cap (figure G.1) is rotated to lock in the Pin (figure E.1) the direction of rotation as well as the motions involved in the fixing of the cap (figure G.1) is shown in (figure 7) and after the motion-defined in the (figure 7) is achieved, the cap (figure G.1) gets locked in the slot (I) of the pin (figure E.1) as a result the locking of the cap (figure G.1) and panels (figure A.1) is achieved as shown in the (figure 8) in which it can be clearly seen in the bottom portion of the cap (figure G.1) configured for holding the panels (figure A.1) and refer (figure 7). The whole fixing of the panels (figure A.1) with its assembly is shown in (figure 5).

The second embodiment of a screen panel fixing shown in figure 2.1 consists of screen panels (figure B.1), adopter bar (figure D.1), the extruded portion in the adaptor bar (figure F.1), Cap (figure H.3) the fixing sequence for the second embodiment follows the below-mentioned steps:

First, the adaptor bar (figure D.1) is fixed to the vibratory screen using welding/bolting/snap type fixing, when the adaptor bar (figure D.1) is fixed and aligned side by side the panels (figure B.1) is then kept above the adaptor bar (figure D.1) keeping in mind the extruded pins (N) (figure F.1) align to the fixing location to the panels (P) when the panels (figure B.1) are positioned it makes the way for the cap (figure H.3) to align itself and position to the extruded part (J) present in the pin (figure F.1) this whole arrangement is shown in (figure 9). As the cap’s (figure H.3) slot (L) accommodates the extruded part in the pin (J) of the pin (figure F.1) the cap (figure H.3) is rotated by slots (R) to lock in the Pin (figure F.1) the direction of rotation, as well as the motions involved in the fixing of the cap (figure H.3), is shown in (figure 9) and after the motion-defined in the (figure 9) is achieved, the cap (figure H.3) gets locked in the extruded part (J) of the pin (figure E.1) as a result the locking of the cap (figure H.3) and panels (figure B.1) is achieved as shown in the (figure 9) in which it can be clclearlyhe bottom portion of the cap (figure H.3) is holding the panels (figure B.1) refer (figure 9). The whole fixing of the panels (figure B.1) with its assembly is shown in (figure 6). And the full assembly of the second embodiment of two panels is shown in (figure 10)

From the above, it can be seen that this invention provides a system interlocking that provides a unique mechanism for locking modular panels together and this fixing arrangement will take less time to install and dismantle time.

As per another embodiment, and as shown in (figure H.3), there is a converging and diverging section to lock the extruded/projected part (J) of the Screen fixing means/adaptor bar (Figure D.1)we have also made provision for spring and magnetic arrangement to further enhance the strength of locking
a. The springs will have provision to lock the Cap Figure (G.1/H.3), Screen fixing means/adaptor bar Figure (C.1/D.1), and the Panel (figure 1.1/2.1)in its position.
b. The same is in the case of magnetic arrangement in the locking, when the Cap Figure (G.1/H.3) or Screen fixing means/adaptor bar Figure (C.1/D.1)or both is under the magnetic influence, the projected part/bores (K/L) present in the cap (figure G.1/H.3) gets locked/further restricting the locking movement additional to the self-locking of the above Claims-(2/3/7), due to influence of magnetic force which holds the projected part in the bore or holds the projected part in its position firmly. To dismantle the setup an external force is to be applied to overcome the magnetic force along with the additional self-locking frictional force or the spring force and the setup can be dismantled from its position

The Screen fixing means/adaptor bar Figure (C.1/D.1)and the Cap Figure (G.1/H.3), as per the claims 2, 7, and 8 can be of the same material or different material like metallic/nonmetallic based on the application, the profile (I/J/K/L) mentioned in the claims is converging and diverging/only converging/only diverging/simply slotted. The profiles (I/J/K/L) shown can be circular profiles or any other polygonal profile meant for better self-locking

While the present invention has been described with reference to a specific preferred embodiment, it will be apparent that various modifications and changes could be made to this embodiment without departing from the scope of the invention. The above- mentioned description are provided to serve the purpose of clarifying the aspects of the invention, and it will be apparent to one skilled in the art that they do not serve to limit the scope of the invention. By way of example, the total process is customized. The above-mentioned process example is just one of the many configurations that the mentioned components can take on. All modifications and improvements have been incorporated herein for the sake of conciseness and readability but are properly within the scope of the present invention.
, Claims:WE CLAIM:-

1. A Screen Panel (A.1/B.1) arrangement (1.1/2.1) mounted on screen support (Q) comprising of :
a screen fixing means/adaptor bar (C.1/D.1);
a cap (G.1/H.3) including internal groove/extruded portion (I/J),
wherein the said screen fixing means/adaptor bar includes locking arrangement in the form of vertical extruded portion (M/N) in the screen fixing means/adaptor bar (C.1/D.1) with external extruded/groove (K/L); and
wherein the said cap (G.1/H.3) is configured to be rotated over the said locking arrangement by a pre-defined degree to lock the arrangement and secure the panels in their position.

2. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 1, wherein, said vertical extruded portion (M/N) on the Screen fixing means / adaptor bar (C.1/D.1), is disposed at predetermined location (O/P) configured to receive the Screen Panel (A.1/B.1) and have the same number of the predetermined location (O/P) for fixing.

3. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, said predetermined location (O/P) on the screen panel (A.1/B.1 ) and the Screen fixing means/adaptor bar (C.1/D.1) is configured for fixing at the positions on the edge of the panel (O/P) or in the gap between the apertures present on the panel (A.1/B.1) and the shape of the said predetermined locaton can be counter semicircular/circular or counter rectangular opening or other geometries contour.

4. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, the number of predetermined locations (O/P) on the Screen fixing means/adaptor bar (C.1/D.1) and the Screen panel (A.1/B.1) are same; and
wherein the said number vary in both Screen Panel (A.1/B.1) and Screen fixing means/adaptor bar (C.1/D.1) as per the required strength.

5. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, the said predetermined locations (M/N) on both Screen fixing means/adaptor bar (C.1/D.1) and the Screen Panel (A.1/B.1), change its relative distance between the extruded portions/bore (M/N) as per the requirement.

6. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, said geometry of the said vertical extruded portion (M/N) on the screen fixing means/adaptor bar (C.1/D.1) is circular/rectangular/other cross-section.

7. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, the vertical/top surface of the screen fixing means/adaptor bar (C.1/D.1), where the locking arrangement is provided (I/J), the said locking arrangement (I/J) is an extruded part (J) or horizontal/aligned bore (I) on the said vertical surface; and
wherein the number of such arrangements of an extruded portion (J) or bores (I) are placed on the same plane or a different plane with respect to the horizontal plane; and
wherein such number and position changes as per the requirement.

8. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, said screen fixing means/adaptor bar (C.1/D.1)receives the said cap (G.1/H.3), the where the cap (G.1/H.3) is rotated to accommodate the projected/bore (K/L) parts in the bore/slot/Extruded part (I/J)of the screen fixing means/adaptor bar (C.1/D.1)

9. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, said screen fixing means/adaptor bar (C.1/D.1)is fixed with the screen support (Q) using welding/bolting/any other male and female locking arrangement.

10. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 1, wherein, the material of construction of both the Screen fixing means/adaptor bar (C.1/D.1)and the Cap Figure (G.1/H.3)can be metallic or nonmetallic.

11. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, said cap includes provision of the groove (R/S) (G.1/H.2), which facilitates unhindered rotation of the Cap Figure (G.1/H.3) when external means are employed to rotate it.

12. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 2, wherein, said cap (G.1/H.3), and its groove/extruded part (L/K) has vertical/horizontal slots/extruded part on the vertical face (H.3/G.2) is in contact with the panel and has geometries features including:

a. vertical/horizontal/angular slot in the Cap (G.1/H.3) for allowing the extruded part (J) of the Screen fixing means/adaptor bar (Figure F.1/D.1) slide and reach the horizontal slot (L).

b. horizontal slot (L) is diverging-converging type which is configured to constrain the Screen fixing means/adaptor bar (F.1/D.1)to its locking position i.e in the horizontal slot (L)

c. vertical/horizontal/angular extruded part (K) in the cap (G.2) is provided to slide in the slot (I) in the screen fixing means/adaptor bar (C.1) and by rotating the Cap (G.2) for interlockin.

13. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 12, wherein the converging and diverging section is adapted to lock the extruded/projected part (J) of the Screen fixing means/adaptor bar (D.1; and
wherein said section includes springs and magnetic arrangement in order to enhance the strength of locking.

14. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 13, wherein the said springs have provision to lock the cap (G.1/H.3), Screen fixing means/adaptor bar (C.1/D.1), and the screen panel (1.1/2.1)in its position.

15. The Screen Panel (A.1/B.1) arrangement (1.1/2.1) as claimed in claim 13, wherein the said magnetic arrangement is adapted for locking, when the said cap (G.1/H.3) or Screen fixing means/adaptor bar (C.1/D.1) or both is under the magnetic influence, when the projected part/bores (K/L) present in the cap ( G.1/H.3) gets self-locked and further restrict the locking movement.

PAWAN KUMAR MAHESHWARI
IN/PA-761
For :- TEGA INDUSTRIES LIMITED