USRE39361E1 - Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein - Google Patents

Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein Download PDF

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Publication number
USRE39361E1
USRE39361E1 US09/413,747 US41374794A USRE39361E US RE39361 E1 USRE39361 E1 US RE39361E1 US 41374794 A US41374794 A US 41374794A US RE39361 E USRE39361 E US RE39361E
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Prior art keywords
filter
read
assembly
filtering apparatus
write memory
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US09/413,747
Inventor
Dirk Jan Marinus Den Dekker
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TACK SMART FILTER TECHNOLOGY BV
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Doctro AVV
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/009—Identification of filter type or position thereof, e.g. by transponders or bar codes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/429—Means for wireless communication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4046—Means for avoiding false mounting of different parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/52—Filter identification means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/56—Wireless systems for monitoring the filter

Definitions

  • the invention relates to an assembly of a filtering apparatus and a replaceable filter.
  • the filter In various types of filtering apparatuses, such as industrial exhausters, vacuum cleaners, filtering devices in lubrication systems etc., the filter should be replaced periodically because clogging will degrade its operation. When it is replaced several things can go wrong, such as incorrect fitting, fitting of a wrong or unapproved type and the like, which jeopardizes the correct operation of the filtering apparatus or even personal safety.
  • the assembly according to the invention is characterized by an electronic filter identification system including an electronic label on the filter and read-out means on the filtering apparatus.
  • the read-out means checks the correct fitting of a proper filter type by means of the label thereby avoiding mistakes.
  • the read-out means is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out means, in which case preferably the control unit is only actuable upon disposing a filter in the filtering apparatus having a proper label. In this way it is impossible to operate the filtering apparatus together with an improper filter, thus avoiding undesirable or even dangerous situations.
  • the filter identification system may be interactive permitting for example the provision of a label with a read and write memory adapted to store the number of operating hours of the filter and to switch off the filtering device if the maximum permitted number of operating hours has been reached. This prevents the filter from being used too long which would endanger the proper operation of the filter. Since the label in the filter itself counts the number of operating hours, a correct counting is maintained also when the filter is removed from the filtering apparatus and is fitted again in the same or another filtering apparatus, so that a timely warning for the end of the operating time is ensured.
  • the filtering apparatus comprises an indicating means such as a display or indicator lamps of a control panel, for showing information on the filter.
  • an indicating means such as a display or indicator lamps of a control panel, for showing information on the filter.
  • this indicating means an operator can be provided with information received by the read-out means of the filter label, for example the fitting of an incorrect filter, or the attainment of the maximum operating time, so that the necessary actions can be taken immediately.
  • the invention includes both the assembly of a filtering apparatus and a filter, and the filtering apparatus and the filter having the features as mentioned separately.
  • the only FIGURE of the drawing shows a filtering apparatus indicated by reference numeral 1 and accommodating therein an exchangeable filter 2 .
  • the filtering apparatus 1 may be part of a great number of different types of apparatus, such as for instance industrial exhausters to be used in welding operations for example, in vacuum cleaners or also in fluid circuits in which a fluid is filtered during each circulation.
  • the fluid includes both air, gas and liquids.
  • the filter 2 will preferably be a mechanical filter in which the fluid is guided through a porous material or a material structure having small passage openings separating solid matter from the fluid.
  • the drawing shows a fluid line 3 extending through the filter 2 , and a pressure or vacuum source 4 , for example a pump, for forcing the fluid through the filter 2 .
  • the replaceable filter 2 has an electronic label 5 to be read out by a read-out means 6 which is mounted in the filtering apparatus 1 and in this case being connected to a central control unit 7 controlling the operation of the filtering apparatus 1 or the machine accommodating the filtering apparatus 1 and to which the pressure or vacuum source 4 is connected.
  • the FIGURE also shows a control panel 8 connected to the control unit 7 .
  • the electronic label 5 comprises information on the filter 2 which is readable by the read-out means 6 .
  • Label 5 and read-out means 6 together form an electronic identification system which may be provided in several embodiments. In a simple embodiment one may use for example resonance circuits, magnetic strip cards or optical cards, in which systems the label can only act as a transmitter and the read-out means as a receiver. In more sophisticated systems there may be an interaction of the label and read-out means so that both the label and read-out means are transmitter and receiver at the same time.
  • a chip card having a small piece of an EEPROM (a read and write memory remaining in tact without electric supply), a “PIT” (programmable identification tag) in which a chip card is used, but in which both the energy and the information is transmitted a distance without contact, or a so-called smart card in which the memory of a chip card is extended to a complete micro controller able to carry out full computations.
  • EEPROM read and write memory remaining in tact without electric supply
  • PIT programmable identification tag
  • All systems are able to transmit information from the label to the read-out means in the filtering apparatus.
  • the read-out means may check the fitting of the correct type of filter in the filtering apparatus.
  • the program of the filtering device may be such that, if the right filter is not fitted, the control unit 7 is inhibited and the filter apparatus or the machine incorporating said filtering apparatus is prevented from being switched on. Consequently, the personal safety and the correct operation of the apparatus is secured. It might be possible to have the control panel 8 indicate that another filter should be fitted.
  • the features of the filter identification system may be extended substantially.
  • the actual operating time of the filter may be stored in the label 5 of the filter 2 which will prevent the filter from being used too long.
  • the user may be warned by an indication on the control panel 8 or the apparatus may be switched off if the maximum permitted operating time is exceeded.
  • the operator may be kept informed of the number of operating hours of the filter 2 through the operating panel 8 .
  • other exchanges of information within the interactive system are conceivable.
  • filters which are used for filtering danger substances for example asbestos
  • a further extension of the embodiment includes an interactive identification system to store data from the filtering apparatus in the label, data may for example relate to substances which are retained within the filter during filtration. These data may be read out with a portable unit in a waste treatment works in order to determine the best way to dispose of the filter as waste.

Abstract

A filtering apparatus and replaceable filter assembly including an electronic filter identification system having an electronic label on the filter and a read-out mechanism on the filtering apparatus. The read-out mechanism is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out mechanism. The control unit may be actuable only upon disposing a filter in the filtering apparatus having a proper or predetermined electronic label. The filter identification system may also be interactive. The electronic label on the filter includes a read/write memory which can store the number of operating hours of the filter.

Description

The invention relates to an assembly of a filtering apparatus and a replaceable filter.
In various types of filtering apparatuses, such as industrial exhausters, vacuum cleaners, filtering devices in lubrication systems etc., the filter should be replaced periodically because clogging will degrade its operation. When it is replaced several things can go wrong, such as incorrect fitting, fitting of a wrong or unapproved type and the like, which jeopardizes the correct operation of the filtering apparatus or even personal safety.
It is the object of the invention to provide an assembly of a filtering apparatus and a replaceable filter in which this disadvantage is removed in an effective way.
For this purpose, the assembly according to the invention is characterized by an electronic filter identification system including an electronic label on the filter and read-out means on the filtering apparatus.
Due to these features it is permitted that the read-out means checks the correct fitting of a proper filter type by means of the label thereby avoiding mistakes.
It is for example possible that the read-out means is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out means, in which case preferably the control unit is only actuable upon disposing a filter in the filtering apparatus having a proper label. In this way it is impossible to operate the filtering apparatus together with an improper filter, thus avoiding undesirable or even dangerous situations.
In a further development of the invention, the filter identification system may be interactive permitting for example the provision of a label with a read and write memory adapted to store the number of operating hours of the filter and to switch off the filtering device if the maximum permitted number of operating hours has been reached. This prevents the filter from being used too long which would endanger the proper operation of the filter. Since the label in the filter itself counts the number of operating hours, a correct counting is maintained also when the filter is removed from the filtering apparatus and is fitted again in the same or another filtering apparatus, so that a timely warning for the end of the operating time is ensured.
Preferably, the filtering apparatus comprises an indicating means such as a display or indicator lamps of a control panel, for showing information on the filter.
With this indicating means an operator can be provided with information received by the read-out means of the filter label, for example the fitting of an incorrect filter, or the attainment of the maximum operating time, so that the necessary actions can be taken immediately.
The invention includes both the assembly of a filtering apparatus and a filter, and the filtering apparatus and the filter having the features as mentioned separately.
The invention will hereafter be elucidated with reference to the drawing showing a substantially simplified diagram of an exemplary embodiment of the invention.
The only FIGURE of the drawing shows a filtering apparatus indicated by reference numeral 1 and accommodating therein an exchangeable filter 2. The filtering apparatus 1 may be part of a great number of different types of apparatus, such as for instance industrial exhausters to be used in welding operations for example, in vacuum cleaners or also in fluid circuits in which a fluid is filtered during each circulation. The fluid includes both air, gas and liquids. The filter 2 will preferably be a mechanical filter in which the fluid is guided through a porous material or a material structure having small passage openings separating solid matter from the fluid. For this purpose, the drawing shows a fluid line 3 extending through the filter 2, and a pressure or vacuum source 4, for example a pump, for forcing the fluid through the filter 2.
The replaceable filter 2 has an electronic label 5 to be read out by a read-out means 6 which is mounted in the filtering apparatus 1 and in this case being connected to a central control unit 7 controlling the operation of the filtering apparatus 1 or the machine accommodating the filtering apparatus 1 and to which the pressure or vacuum source 4 is connected. The FIGURE also shows a control panel 8 connected to the control unit 7.
The electronic label 5 comprises information on the filter 2 which is readable by the read-out means 6. Label 5 and read-out means 6 together form an electronic identification system which may be provided in several embodiments. In a simple embodiment one may use for example resonance circuits, magnetic strip cards or optical cards, in which systems the label can only act as a transmitter and the read-out means as a receiver. In more sophisticated systems there may be an interaction of the label and read-out means so that both the label and read-out means are transmitter and receiver at the same time. In these identification systems use can be made of a chip card having a small piece of an EEPROM (a read and write memory remaining in tact without electric supply), a “PIT” (programmable identification tag) in which a chip card is used, but in which both the energy and the information is transmitted a distance without contact, or a so-called smart card in which the memory of a chip card is extended to a complete micro controller able to carry out full computations.
All systems are able to transmit information from the label to the read-out means in the filtering apparatus. As a result it is possible to use the read-out means to check the fitting of the correct type of filter in the filtering apparatus. The program of the filtering device may be such that, if the right filter is not fitted, the control unit 7 is inhibited and the filter apparatus or the machine incorporating said filtering apparatus is prevented from being switched on. Consequently, the personal safety and the correct operation of the apparatus is secured. It might be possible to have the control panel 8 indicate that another filter should be fitted.
When an interactive system is used, the features of the filter identification system may be extended substantially. For example, the actual operating time of the filter may be stored in the label 5 of the filter 2 which will prevent the filter from being used too long. The user may be warned by an indication on the control panel 8 or the apparatus may be switched off if the maximum permitted operating time is exceeded. During the use of the filter, the operator may be kept informed of the number of operating hours of the filter 2 through the operating panel 8. Of course, other exchanges of information within the interactive system are conceivable.
Particularly, with filters which are used for filtering danger substances, for example asbestos, it may be useful to provide the label 5 of the filter 2 with a copy protection so that only approved filters adapted to the requirements may be used and other filters will be refused by the filtering apparatus 1.
The invention is not restricted to the embodiment shown in the drawing and described herein before which may be varied in different manners within the scope of the invention.
A further extension of the embodiment includes an interactive identification system to store data from the filtering apparatus in the label, data may for example relate to substances which are retained within the filter during filtration. These data may be read out with a portable unit in a waste treatment works in order to determine the best way to dispose of the filter as waste.

Claims (46)

1. An assembly of a filtering apparatus and a replaceable filter which comprises an electronic filter identification system, including an electronic label on the filter and a read-out means on the filtering apparatus, said electronic label comprising means, including a read and write memory, adapted to count and store a number of actual operating hours of the replaceable filter.
2. The assembly of claim 1, wherein the read-out means is connected to a control unit of the filtering apparatus, said control unit being responsive by the read-out means.
3. The assembly of claim 2, wherein the control unit is actuable only upon said filter being disposed in the filtering apparatus which has a predetermined electronic label.
4. The assembly of claim 1, wherein the filter identification system is interactive.
5. The assembly of claim 1, wherein the filtering apparatus comprises an indicating means including a display or indicator and a control panel, for showing information on the filter.
6. The assembly of claim 1, wherein the label comprises means allowing use or refusal of the filter by the filtering apparatus.
7. A filtering apparatus adapted to receive a replaceable filter wherein said apparatus comprises a read-out means adapted to cooperate with an electronic label on the filter to form an electronic filter identification system, said electronic label comprising means, including a read and write memory, adapted to count and store a number of actual operating hours of the replaceable filter, said read-out means adapted to respond to said memory means to effect at least one of providing a warning or actuating shutdown of flow through the filter.
8. A filter adapted to be placed in a filtering apparatus wherein said filter comprises an electronic label adapted to cooperate with a read-out means on the filtering apparatus to form an electronic filter identification system, said electronic label comprising means, including a read and write memory, adapted to count and store a number of actual operating hours of the replaceable filter.
9. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising a read and write memory;
wherein the assembly stores actual operating data from the filtering apparatus in the read and write memory.
10. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising means, including a read and write memory, for storing actual operating data from the filtering apparatus.
11. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising electronics, including a read and write memory, that obtain and store actual operating data from the filtering apparatus.
12. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising means, including a read and write memory, for obtaining and storing actual operating data from the filtering apparatus.
13. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising a read and write memory that stores data and that maintains the data.
14. The assembly of claim 13, wherein the data is actual data from the filtering apparatus.
15. The assembly of claim 13, wherein the read and write memory maintains the data if the replaceable filter is removed from the filtering apparatus.
16. The assembly of claim 13, wherein the data stored in the read and write memory is related to a type of said replaceable filter.
17. The assembly of claim 13, wherein the data stored in the read and write memory is related to actual operating time of said replaceable filter.
18. The assembly of claim 13, wherein the data stored in the read and write memory is related to incorrect fitting of the filter to the filtering apparatus.
19. The assembly of claim 13, wherein the electronic label is copy protected so that only approved filters adapted to requirements of the filtering apparatus can be used.
20. The assembly of claim 13, wherein the electronic label stores data related to at least one of the filter and use of the filter, and wherein the electronic label and read-out can exchange the stored data.
21. The assembly of claim 13, wherein the data stored in the read and write memory is data relating to substances retained within the filter.
22. The assembly of claim 13, wherein said read-out is coupled to a control unit of the filtering apparatus and said control unit is responsive to the read-out.
23. The assembly of claim 13, wherein said read-out is coupled to a control unit of the filtering apparatus and said control unit is actuable only upon said filter being disposed in the filtering apparatus correctly.
24. The assembly of claim 13, wherein said read-out is coupled to a control unit of the filtering apparatus and said control unit is actuable only upon said filter being disposed in the filtering apparatus.
25. The assembly of claim 13, wherein said electronic label comprises means for use or refusal of the filter by the filtering apparatus.
26. The assembly of claim 13, wherein the data stored in the read and write memory is data relating to the attainment of the maximum operating time of the filter.
27. The assembly of claim 13, wherein the read and write memory is an EEPROM.
28. The assembly of claim 13, wherein the read and write memory is a programmable identification tag.
29. The assembly of claim 13, wherein the read and write memory is a smart card.
30. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising a read and write memory adapted to count and store actual operating time of the replaceable filter as data.
31. The assembly of claim 30, wherein the read and write memory maintains the data if the replaceable filter is removed from the filtering apparatus.
32. An assembly of a filtering apparatus and a replaceable filter, the assembly comprising an electronic filter identification system, including an electronic label on the filter and a read-out on the filtering apparatus, said electronic label comprising electronics, including a read and write memory selected from a group consisting of EEPROMS, Programmable Identification Tags (PIT's), and smart cards, to store information.
33. The assembly of claim 32, wherein the information stored in the read and write memory is related to a type of said replaceable filter.
34. The assembly of claim 32, wherein the information stored in the read and write memory is related to actual operating time of said replaceable filter.
35. The assembly of claim 32, wherein the information stored in the read and write memory is related to incorrect fitting of the filter to the filtering apparatus.
36. The assembly of claim 32, wherein the electronic label is copy protected so that only approved filters adapted to requirements of the filtering apparatus can be used.
37. The assembly of claim 32, wherein the electronic label stores information related to at least one of the filter and use of the filter, and wherein the electronic label and read-out can exchange the stored information.
38. The assembly of claim 32, wherein the information stored in the read and write memory is data relating to substances retained within the filter.
39. The assembly of claim 32, wherein said read-out is coupled to a control unit of the filtering apparatus and said control unit is responsive to the read-out.
40. The assembly of claim 32, wherein said read-out is coupled to a control unit of the filtering apparatus and said control unit is actuable only upon said filter being disposed in the filtering apparatus correctly.
41. The assembly of claim 32, wherein said read-out is coupled to a control unit of the filtering apparatus and said control unit is actuable only upon said filter being disposed in the filtering apparatus.
42. The assembly of claim 32, wherein said electronic label comprises means for use or refusal of the filter by the filtering apparatus.
43. The assembly of claim 32, wherein the information stored in the read and write memory is data relating to attainment of a maximum operating time of the filter.
44. The assembly of claim 32, wherein the read and write memory is an EEPROM.
45. The assembly of claim 32, wherein the read and write memory is a programmable identification tag.
46. The assembly of claim 32, wherein the read and write memory is a smart card.
US09/413,747 1993-03-29 1994-03-29 Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein Expired - Lifetime USRE39361E1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9300554A NL9300554A (en) 1993-03-29 1993-03-29 Assembly of filter device and a replaceable filter; as well as filter device and filter for use therein.
PCT/NL1994/000067 WO1994022551A1 (en) 1993-03-29 1994-03-29 Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein

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US09/413,747 Expired - Lifetime USRE39361E1 (en) 1993-03-29 1994-03-29 Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein
US08/532,618 Ceased US5674381A (en) 1993-03-29 1994-03-29 Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein

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EP (1) EP0700313B1 (en)
JP (2) JP3501805B2 (en)
AU (1) AU6544994A (en)
DE (1) DE69401006T2 (en)
DK (1) DK0700313T3 (en)
FI (1) FI110484B (en)
NL (1) NL9300554A (en)
NO (1) NO309413B1 (en)
WO (1) WO1994022551A1 (en)

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JP3501805B2 (en) 2004-03-02
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US5674381A (en) 1997-10-07
WO1994022551A1 (en) 1994-10-13
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DK0700313T3 (en) 1997-04-14
NO953825L (en) 1995-09-27
JP2004148299A (en) 2004-05-27
JPH09500816A (en) 1997-01-28
EP0700313A1 (en) 1996-03-13
DE69401006T2 (en) 1997-05-22

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