MXPA97004302A - System protectors in cam - Google Patents

Abstract

A system to prevent a cartridge filter that is placed inside a tank hopper of a system from accidentally falling into the hopper, due to the operator's failure to properly handle the cartridge filter during the replacement of the cartridge filter, with the system including a safety cage that is secured in the reservoir, with the safety cage surrounding the cartridge filter and being spaced far enough away from the cartridge filter to allow for free, unattached removal and replenishment of the filter cartridge while allowing still the essentially unimpeded flow of air through the safety cage

Description

FIELD OF THE INVENTION This invention relates generally to air filter systems and, more particularly, to improvements to, in the chamber cartridge filter systems, which require periodic replacement of the cartridge filters.

BACKGROUND OF THE INVENTION One of the difficulties encountered with conveyor systems is that frequently the air within the system needs to be discharged from the system. Since the air inside the system is full of particles, it is necessary to filter the air before discharging the air into the atmosphere. Typically, a cartridge filter is placed inside the mixing or storage chamber of the system, so dirty air must flow through the cartridge filter before leaving the system. The filter system includes a cartridge adapter having members thereon that mate with the matching members within the cartridge filter. The adapter retains the cartridge filter thereto as a single unit, in order to allow the cartridge filter to be removed and replaced as a single unit, when the cartridge filter is exhausted. The holding or closing mechanisms to retain the cartridge adapter in the filter cartridge are extremely effective and actually make it difficult to remove the filter cartridge from the cartridge adapter which minimizes the chances of the cartridge filter falling towards The deposit. In this way, it is very difficult and rare that the cartridge filter accidentally falls out of the cartridge filter adapter, however, despite the safety of the fixing system, occasionally an operator error causes the cartridge filter to fall towards the system. That is, the person who is replacing the cartridge filter, removes the filter from the filter cartridge from the cartridge adapter and during the handling process could accidentally drop the filter from the old or new cartridge towards the tank. Although the clamping or closing coupling between the cartridge adapter and the cartridge filter virtually ensures that an accidental release does not occur, it has been discovered that the operator could, through lack of attention, accidentally drop the cartridge filter. to the reservoir after you have removed the filter from the filter adapter cartridge. Since the deposits are usually quite deep, it is difficult to fish the cartridge filter out of the tank. In addition, the deposit system could contain machinery that would be damaged if the cartridge filter fell inside. Even though it is highly unlikely that the adapter would fall out of the cartridge filter, the present invention addresses an unexpected handling problem that can result in the filter of the cartridge remaining inside the container. That is, the operator through inexperience or lack of attention could accidentally leave the filter cartridge inside the opening in the tank. To overcome the problem with careless personnel, the present invention provides a safety cage which prevents the operator from accidentally dropping the cartridge filter into the reservoir and causing damage to the system which however allows the operator to remove and easily replace the cartridge of filter.

BRIEF DESCRIPTION OF THE PREVIOUS TECHNIQUE U.S. Patent No. 4,336,043 shows the filtration assembly with a closed housing mounted around a filter.

U.S. Patent Number 4,848,990 shows a dust collector with the dust collector placed outside the hopper dryer. U.S. Patent Number 5,344,559 shows a filter cartridge. U.S. Patent No. 5,409,512 shows an air filtration system for capturing dust during sweeping operations. U.S. Patent No. 4,482,367 shows a self-cleaning air filter system wherein the air filter is vibrated to dislodge the accumulated material. The North American Patent Number 4No. 767,427 shows a cartridge filter mounting apparatus wherein a releasable holding apparatus holds the filter within the system. U.S. Patent Number 4,514,875 shows a filter for a cleaning machine with the filter mounted directly on the machine. U.S. Patent No. 4,198,726 shows cleaning filters mounted on a rail. U.S. Patent No. 2,370,034 shows a removable tank for retaining frozen food in a refrigerator or the like.

U.S. Patent No. 1,284,579 shows a bottle holder and bottle holder. The North American Design Patent Number 138,327 shows an ornamental basket. U.S. Patent No. 1,885,104 shows a basket for use in a refrigerator.

COMPENDIUM OF THE INVENTION The present invention comprises a system for preventing a cartridge filter that is placed inside the hopper or hopper of a system from accidentally falling into the hopper due to operator failure to properly handle the cartridge filter during filter replacement. cartridge with the system including a safety cage that is secured in the reservoir, with the safety cage surrounding the cartridge filter and being spaced far enough away from the cartridge filter to allow for free removal and replenishment of the filter cartridge, while still allowing the flow of essentially unimpeded air through the safety cage.

BRIEF DESCRIPTION OF THE DRAWINGS: Figure 1 shows a partial cut-away view of the conveyor systems having a reservoir in a filter placed inside the reservoir to discharge the air towards the exterior of the reservoir; Figure 2 shows a cartridge filter for use in the filter system of Figure 1; Figure 3 shows a cartridge filter of Figure 2, in secure engagement with a cartridge filter adapter. Figure 4 shows the safety cage placed inside the reservoir of the conveyor system of Figure 1; and Figure 5 shows the safety cage placed around the cartridge filter to prevent a cartridge filter from falling into the reservoir.

DESCRIPTION OF THE PREFERRED MODALITY Figure 1 shows a partial cut-away view of the conveyor system 10 having a reservoir 12 with a filter 20 placed inside the reservoir 12 to discharge the air towards the exterior of the reservoir 12. The reservoir 12 sits on the floor supported by the legs 13 and includes side walls and a top member 15. A discharge tube 16 connects the upper member 15 for transporting the material to or from the reservoir 12. The reservoir 12 includes a mixing mechanism 18 for mixing the material 16 in the reservoir 12. During operation of the reservoir system 10, the air from the internal region 17 flows through the filter 20 and is discharged into the atmosphere as indicated by the arrows. The filter removes the particulate matter from the air to avoid contaminating the air to the outside of the reservoir 12. Figure 2 shows a perspective view of a typical filter cartridge for use in the present system, the cartridge includes a first cover 21 of rigid end having a central member 23 with a set of circumferentially spaced coupling members around the central member 23. A second end cap 22 is placed on the opposite end of the filter 20 and secured with the end of the filter medium 25. Similarly, the end cap 21 is secured at the opposite end of filter means 25 to provide a filter cartridge. The end cap 21 differs from the end cap 22 in that the end cap 22 is closed so that air can only enter the interior of the filter 20 through the filter means 25. Figure 3 shows a cartridge filter adapter 30 having a set of cartridge coupling members 34 positioned in the cylindrical section 33 of the filter adapter. A tube 30 is fixed to the filter adapter 30 to allow a user to periodically push the air back through the filter cartridge 20 to receive the particulate material that is housed in the filter medium 25. The cylindrical section 33 fits inside the central member 21 in the rigid end cap 21 so that the radially extending coupling members 34 engage the radial coupling members 24 in the radial filter. To secure the adapter 30 in the filter cartridge 20, the filter cartridge 20 is rotated slightly until the coupling members are closed together in the form of a thread-like coupling. Once in engagement with one another, the coupling members securely retain the adapter and the filter as a single unit. Figure 4 shows a cartridge case 40 mounted on top that has an edge 41 for circumferentially coupling a flange 43 in order to prevent the case 40 of the cylindrical cartridge from falling into the reservoir 12. The flange 43 can be secured to the member 15 superior through welding or through bolts or rivets. The cartridge box includes a lower section 45 and a lateral section 46. The cartridge case 40 has an internal diameter D] and an internal length L ^ with the case 40 of the cartridge extending into the container 12. The cartridge case 40 includes a plurality of circumferential rings or bands 47 and a plurality of members 46. of longitudinal wire that are secured to each other to form a wire security cage 40, to encircle a cartridge filter. The openings in the wire security cage 40 are large enough so as not to impede or restrict the flow of air through the filter. If the safety cage is used in a corrosive environment, the wire safety cage can be made of stainless steel, however; Other materials for the cage could be used depending on the environment in the tank. In the embodiment shown, the wire safety cage is mounted vertically in the tank 12 that is, with the longitudinal members extending along or parallel to a vertical line. Figure 3 illustrates the cylindrical cartridge filter 20 having a diameter of outer D2 and an outer length L2 with the outer diameter being sufficiently smaller than the inner diameter D] _ of the cylindrical cartridge case 40 and the outer length L2 of the filter 20 of the cartridge being sufficiently smaller than the internal length 1__ of the cylindrical cartridge 20, in order to allow free insertion not attached to the separation or removal of the cartridge filter from the cylindrical cartridge case 40 while allowing the The cylindrical cartridge case prevents the cartridge filter 20 from accidentally falling into the container 12 in case the cartridge filter adapter 30 is decoupled from the cartridge filter 20 during the exchange of the cartridge filter 20 in the container system 10. Figure 5 shows the filter 20 and the filter adapter 30 placed in the safety cage with the safety cage separated from the sides and the end wall of the filter cartridge 20. In this condition, the filter 20 can not fall into the tank 12; however, most importantly, when an operator replaces the filter cartridge, the safety cage 40 remains inside the tank 12 so that if the operator accidentally drops the filter cartridge does not fall into the tank or damage the equipment or The deposit.

Claims (14)

1. CLAIMS; A storage system for storing or transporting material where air filtration is achieved before discharging air from the reservoir system comprising: a reservoir for retaining the material therein, the reservoir has side walls of a limb for enclosing the side walls in order to define an internal and external part for the reservoir, the member has an opening therein for discharging the area towards the exterior of the reservoir region; a cartridge box mounted in the tank to prevent the cartridge box from being inside the tank, the cartridge box has a lower section, the cartridge box has an inside diameter and an outside diameter with the cartridge box placed inside the tank; A cartridge filter adapter, the cartridge filter adapter has a cartridge coupling member in it; a cartridge filter, the cartridge filter has a closed first end and a second end with the filter material positioned therebetween, the cartridge filter coupling member at the second end forms the coupling between the cartridge coupling member In the cartridge filter adapter, and the filter coupling member to retain the cartridge filter and the cartridge filter adapter as a single unit, the cartridge filter has an outside diameter and an outside length with the outside diameter being sufficiently smaller than the inner diameter of the cylindrical cartridge box, and the outer length of the cartridge register being sufficiently smaller than the inside length of the cylindrical cartridge to allow free, non-attached insertion or removal of the cartridge filter from the cylindrical cartridge case, with the cylindrical cartridge case having sufficiently small openings on it to prevent the cartridge filter from accidentally falling into the reservoir in case the cartridge filter adapter decouples from the cartridge filter during cartridge filter change in the reservoir system, and with openings large enough in it in order not to impede the flow of air through the cartridge case.
2. 2. The deposit system in accordance with claim 1, wherein the cartridge box and the cartridge filter are cylindrical.
3. 3. The storage system according to claim 2, wherein the cartridge cage is a wire cage.
4. The reservoir system according to claim 3, wherein the cartridge filter adapter includes a passage for urging the cleaning air through the cartridge filter to remove the accumulated particles on the cartridge filter.
5. The storage system according to claim 4, wherein the sufficiently large openings therein are circumferentially spaced around the cartridge case.
6. The storage system according to claim 5, wherein the member having an opening therein is a top member with the upper member positioned above the material processing equipment.
7. The storage system according to claim 6, wherein the cartridge coupling member comprises radially extending members to form a torsional coupling with the cartridge filter.
8. The reservoir system according to claim 7, wherein the adapter includes a passage therein for directing air towards the cartridge in order to remove the particles adhering to the filter, urging the air towards the cartridge filter to force the particles accumulated from the cartridge filter and through the cartridge box.
9. The storage system according to claim 8, wherein the cartridge box comprises a plurality of cylindrical rings.
10. 10. The deposit system according to claim 9, wherein the cartridge box includes a plurality of longitudinal members connected to the plurality of cylindrical rings so as to form an open structure for the passage of unfiltered air therethrough.
11. The storage system according to claim 10, wherein the cartridge case is made of stainless steel.
12. The storage system according to claim 10, wherein the flange is secured to the upper member to hold the cartridge box therein.
13. The storage system according to claim 12, wherein the cartridge box is vertically mounted in the reservoir.
14. 14. The reservoir system according to claim 13, wherein the upper member includes an edge for coupling the cartridge case.