US20050247441A1 - Plate heat exchanger - Google Patents

Plate heat exchanger Download PDF

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Publication number
US20050247441A1
US20050247441A1 US11/119,736 US11973605A US2005247441A1 US 20050247441 A1 US20050247441 A1 US 20050247441A1 US 11973605 A US11973605 A US 11973605A US 2005247441 A1 US2005247441 A1 US 2005247441A1
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US
United States
Prior art keywords
bundle
fluid
circuit
chamber
heat exchanger
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
Application number
US11/119,736
Inventor
Pierre-Xavier Bussonnet
Sylvain Benezech
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfa Laval Packinox SAS
Original Assignee
Packinox SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Packinox SA filed Critical Packinox SA
Assigned to PACKINOX reassignment PACKINOX ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BENEZECH, SYLVAIN, BUSSONNET, PIERRE-XAVIER
Publication of US20050247441A1 publication Critical patent/US20050247441A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/224—Longitudinal partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction

Definitions

  • the present invention relates to a plate heat exchanger.
  • Plate heat exchangers are generally formed by an elongate impervious chamber and by a bundle of plates arranged in said impervious chamber and providing therewith a free space.
  • the bundle of plates consists of a stack of mutually parallel plates that provide between them a double circuit for the flow of two independent and generally counter-current fluids.
  • This type of heat exchanger also comprises an inlet pipe for a hot fluid that is connected by a connection box, also known as a collector, directly to the input of the first circuit of the bundle of plates, which flows into one of the circuits of this bundle, and an outlet pipe for the cooled fluid once it has passed into said bundle of plates, which outlet pipe is connected by a connection box directly to the outlet of this first circuit.
  • a connection box also known as a collector
  • heat exchangers of this type also comprise an inlet pipe for a cold fluid flowing into the other of the circuits of the bundle of plates, which inlet pipe is connected directly by a connection box to the inlet of the second circuit of this bundle of plates, and an outlet pipe for this heated fluid once it has passed into said bundle of plates.
  • This outlet pipe for the heated fluid is also connected directly by a connection box to the outlet of the second circuit of the bundle of plates.
  • the heat exchange between the hot and cold fluids along the bundle of plates subjects the wall of the chamber to temperature variations over its length.
  • the wall of the chamber is subjected to an elevated temperature, while the temperature decreases gradually along this wall as a function of the cooling of the hot fluid in the bundle of plates.
  • the chamber is generally formed by a plurality of shells placed end to end and joined together, in particular by welding.
  • each shell has in the past had a different thickness, determined as a function of the temperature to which it is subjected.
  • the object of the invention is to propose a plate heat exchanger that avoids these drawbacks and that provides a chamber of uniform thickness over its entire length.
  • the invention therefore relates to a plate heat exchanger of the type comprising:
  • FIG. 1 is a schematic longitudinal section of a plate heat exchanger according to the invention.
  • FIG. 2 is a cross-section taken along the line 2 - 2 in FIG. 1 .
  • FIG. 1 shows a plate heat exchanger, which is designated in its entirety by the reference numeral 1 and which comprises, on the one hand, an elongate impervious chamber 2 , which is arranged, for example, vertically, and, on the other hand, a bundle of plates 3 placed in said chamber 2 and providing therewith, around said bundle, a free space 4 .
  • the bundle of plates 3 which is generally parallel-piped in shape, consists of a stack of mutually parallel plates (not shown) that provide between them a double circuit A and B for the flow of two independent and, for example, counter-current fluids.
  • the heat exchanger 1 also comprises an inlet pipe 10 for a hot fluid that is connected directly by a connection box 11 , also known as a collector, to the inlet A 1 of the first circuit A of the bundle of plates 3 , and an outlet pipe 12 for the cooled fluid once it has passed into the bundle of plates 3 , which outlet pipe is connected directly by a connection box 13 to the outlet A 2 of said first circuit A.
  • a connection box 11 also known as a collector
  • the heat exchanger 1 also comprises an inlet pipe 20 for a cold fluid that communicates with the inlet B 1 of the second circuit of the bundle of plates via the free space 4 provided between the bundle of plates 3 and the chamber 2 .
  • the inlet B 1 of the second circuit B is remote from the inlet A 1 of the first circuit A of the bundle of plates 3 .
  • the heat exchanger 1 also comprises an outlet pipe 21 for the heated fluid once it has passed into the second circuit B of the bundle of plates 3 , which outlet pipe is connected to the outlet B 2 of this second circuit B by a connection box 22 .
  • the cold fluid therefore flows upwardly from the bundle of plates 3 .
  • the inlet pipe 10 for the hot fluid, the inlet pipe 20 for the cold fluid and the outlet pipe 21 for the heated fluid are arranged in the region of the same end of the chamber 2 and, in the embodiment illustrated in this figure, at the upper end of this chamber 2 .
  • the plate heat exchanger 1 comprises means 25 for channelling the cold fluid along the internal wall of the chamber 2 , between the inlet pipe 20 for this cold fluid and the inlet B 1 of the second circuit B of the bundle of plates 3 .
  • these means for channelling the cold fluid comprise an internal case 25 , which comprises a first wall 26 arranged above the inlet A 1 of the circuit A and the outlet B 2 of the circuit B, and a second wall 27 arranged in the free space 4 between the chamber 2 and the bundle of plates 3 and providing with the internal wall of this chamber 2 an annular passage 5 for the cold fluid.
  • the first wall 26 is planar. This wall 26 may have other shapes, for example a hemispherical or conical shape, in order to promote the flow of the cold fluid into the annular passage 5 .
  • the cold fluid flows into the annular passage 5 along the internal wall of the chamber 2 and therefore cools this chamber 2 .
  • the wall 27 of the internal case 25 extends over a portion of the length of the bundle of plates 3 so as to direct the cold fluid flowing into the annular passage 5 toward the inlet B 1 of the second circuit B of the bundle of plates 3 , as illustrated by the arrows F in FIG. 1 .
  • the internal case 25 is held, for example, by welding the wall 26 to the inlet pipe 10 and to the outlet pipe 21 .

Abstract

The invention relates to a plate heat exchanger (1) of the type comprising an impervious chamber (2), a bundle of plates (3) arranged in said chamber (2) and providing therewith a free space (4), an inlet pipe (10) for hot fluid in a first circuit of this bundle (3), an outlet pipe (12) for the cooled fluid, an inlet pipe (20) for a cold fluid communicating with the inlet of the second circuit of this bundle (3), and an outlet pipe (21) for the heated fluid. The heat exchanger also comprises means (25) for channelling the cold fluid along the internal wall of the chamber (2).

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a plate heat exchanger.
  • 2. Description of the Related Art
  • Plate heat exchangers are generally formed by an elongate impervious chamber and by a bundle of plates arranged in said impervious chamber and providing therewith a free space. The bundle of plates consists of a stack of mutually parallel plates that provide between them a double circuit for the flow of two independent and generally counter-current fluids.
  • This type of heat exchanger also comprises an inlet pipe for a hot fluid that is connected by a connection box, also known as a collector, directly to the input of the first circuit of the bundle of plates, which flows into one of the circuits of this bundle, and an outlet pipe for the cooled fluid once it has passed into said bundle of plates, which outlet pipe is connected by a connection box directly to the outlet of this first circuit.
  • In order to cool this hot fluid, heat exchangers of this type also comprise an inlet pipe for a cold fluid flowing into the other of the circuits of the bundle of plates, which inlet pipe is connected directly by a connection box to the inlet of the second circuit of this bundle of plates, and an outlet pipe for this heated fluid once it has passed into said bundle of plates. This outlet pipe for the heated fluid is also connected directly by a connection box to the outlet of the second circuit of the bundle of plates.
  • The flow of the two fluids into the bundle of plates thus causes a heat exchange between these fluids.
  • The heat exchange between the hot and cold fluids along the bundle of plates subjects the wall of the chamber to temperature variations over its length. In the inlet region for the hot fluid, the wall of the chamber is subjected to an elevated temperature, while the temperature decreases gradually along this wall as a function of the cooling of the hot fluid in the bundle of plates.
  • The chamber is generally formed by a plurality of shells placed end to end and joined together, in particular by welding. In view of the variations in temperature, each shell has in the past had a different thickness, determined as a function of the temperature to which it is subjected.
  • These differences in thickness therefore mean that manufacturers have to provide various shells for a single exchanger, and this of course increases costs and makes the joining together of these shells more complex.
  • The object of the invention is to propose a plate heat exchanger that avoids these drawbacks and that provides a chamber of uniform thickness over its entire length.
    • SUMMARY OF THE INVENTION
  • The invention therefore relates to a plate heat exchanger of the type comprising:
      • an elongate impervious chamber;
      • a bundle of plates arranged in said impervious chamber and providing therewith a free space, said bundle consisting of a stack of mutually parallel plates that determine between them a double circuit for the counter-current flow of two independent fluids;
      • an inlet pipe for a hot fluid, connected directly to the inlet of the first circuit of the bundle;
      • an outlet pipe for the cooled fluid, connected directly to the outlet of said first circuit;
      • an inlet pipe for a cold fluid communicating with the inlet of the second circuit of the bundle that is remote from the inlet of the first circuit; and
      • an outlet pipe for the heated fluid, connected directly to the outlet of said second circuit that is remote from the outlet of the first circuit;
        characterised in that it comprises means for channelling the cold fluid along the internal wall of the chamber, between the inlet pipe for this cold fluid and the inlet of the second circuit of the bundle.
  • According to other characteristics of the invention:
      • the means for channelling the cold fluid comprise an internal case comprising a first wall arranged above the inlet of the first circuit and the outlet of the second circuit, and a second wall arranged in the free space and providing with the internal wall of the chamber an annular passage for said cold fluid;
      • the second wall of the internal case extends over a portion of the length of the bundle of plates;
      • the first wall of the internal case is planar or hemispherical or conical; and
      • the inlet pipe for the hot fluid, the inlet pipe for the cold fluid and the outlet pipe for the heated fluid are arranged in the region of the same end of the chamber.
  • The characteristics and advantages of the invention will become apparent from the following description, which is given by way of example and with reference to the accompanying drawings, in which:
    • BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1 is a schematic longitudinal section of a plate heat exchanger according to the invention; and
  • FIG. 2 is a cross-section taken along the line 2-2 in FIG. 1.
    • DETAILED DESCRIPTION OF THE INVENTION
  • FIG. 1 shows a plate heat exchanger, which is designated in its entirety by the reference numeral 1 and which comprises, on the one hand, an elongate impervious chamber 2, which is arranged, for example, vertically, and, on the other hand, a bundle of plates 3 placed in said chamber 2 and providing therewith, around said bundle, a free space 4.
  • The bundle of plates 3, which is generally parallel-piped in shape, consists of a stack of mutually parallel plates (not shown) that provide between them a double circuit A and B for the flow of two independent and, for example, counter-current fluids.
  • The heat exchanger 1 also comprises an inlet pipe 10 for a hot fluid that is connected directly by a connection box 11, also known as a collector, to the inlet A1 of the first circuit A of the bundle of plates 3, and an outlet pipe 12 for the cooled fluid once it has passed into the bundle of plates 3, which outlet pipe is connected directly by a connection box 13 to the outlet A2 of said first circuit A. In the embodiment illustrated in the figures, the hot fluid thus flows downwardly into the bundle of plates 3.
  • The heat exchanger 1 also comprises an inlet pipe 20 for a cold fluid that communicates with the inlet B1 of the second circuit of the bundle of plates via the free space 4 provided between the bundle of plates 3 and the chamber 2.
  • The inlet B1 of the second circuit B is remote from the inlet A1 of the first circuit A of the bundle of plates 3.
  • Finally, the heat exchanger 1 also comprises an outlet pipe 21 for the heated fluid once it has passed into the second circuit B of the bundle of plates 3, which outlet pipe is connected to the outlet B2 of this second circuit B by a connection box 22. The cold fluid therefore flows upwardly from the bundle of plates 3.
  • As shown in FIG. 1, the inlet pipe 10 for the hot fluid, the inlet pipe 20 for the cold fluid and the outlet pipe 21 for the heated fluid are arranged in the region of the same end of the chamber 2 and, in the embodiment illustrated in this figure, at the upper end of this chamber 2.
  • The plate heat exchanger 1 comprises means 25 for channelling the cold fluid along the internal wall of the chamber 2, between the inlet pipe 20 for this cold fluid and the inlet B1 of the second circuit B of the bundle of plates 3. As shown in FIG. 1, these means for channelling the cold fluid comprise an internal case 25, which comprises a first wall 26 arranged above the inlet A1 of the circuit A and the outlet B2 of the circuit B, and a second wall 27 arranged in the free space 4 between the chamber 2 and the bundle of plates 3 and providing with the internal wall of this chamber 2 an annular passage 5 for the cold fluid.
  • In the embodiment illustrated in FIG. 1, the first wall 26 is planar. This wall 26 may have other shapes, for example a hemispherical or conical shape, in order to promote the flow of the cold fluid into the annular passage 5.
  • As a result of the positioning of the internal case 25 between the inlet pipe 20 for the cold fluid and the inlet B1 of the second circuit B of the bundle of plates 3, the cold fluid flows into the annular passage 5 along the internal wall of the chamber 2 and therefore cools this chamber 2. The wall 27 of the internal case 25 extends over a portion of the length of the bundle of plates 3 so as to direct the cold fluid flowing into the annular passage 5 toward the inlet B1 of the second circuit B of the bundle of plates 3, as illustrated by the arrows F in FIG. 1.
  • The internal case 25 is held, for example, by welding the wall 26 to the inlet pipe 10 and to the outlet pipe 21.
  • The flow of the cold fluid along the internal wall of the chamber 2 allows this chamber 2 to be cooled, and this has the advantage of allowing this chamber 2 to be produced with shells (not shown), placed end to end and each having the same thickness, thus allowing these shells to be joined together and reducing the cost of manufacturing and producing this chamber.

Claims (9)

1. Plate heat exchanger of the type comprising:
an elongate impervious chamber;
a bundle of plates arranged in said impervious chamber and providing therewith a free space, said bundle consisting of a stack of mutually parallel plates that determine between them a double circuit for the counter-current flow of two independent fluids;
an inlet pipe for a hot fluid, connected directly to the inlet of the first circuit of the bundle of plates;
an outlet pipe for the cooled fluid, connected directly to the outlet of said first circuit;
an inlet pipe for a cold fluid communicating with the inlet of the second circuit of the bundle that is remote from the inlet of the first circuit;
an outlet pipe for the heated fluid, connected directly to the outlet of the second circuit of the bundle that is remote from the outlet of the first circuit of this bundle of plates;
wherein it comprises means for channelling the cold fluid along the internal wall of the chamber, between the inlet pipe for the cold fluid and the inlet of the second circuit of the bundle of plates.
2. Plate heat exchanger according to claim 1, wherein the means for channelling the cold fluid comprise an internal case comprising a first wall arranged above the inlet of the first circuit and the outlet of the second circuit, and a second wall arranged in the free space and providing with the internal wall of the chamber an annular passage for said cold fluid.
3. Plate heat exchanger according to claim 2, wherein the second wall of the internal case extends over a portion of the length of the bundle of plates.
4. Plate heat exchanger according to claim 2, wherein the first wall of the internal case is planar or hemispherical or conical.
5. Plate heat exchanger according to claim 3, wherein the first wall of the internal case is planar or hemispherical or conical.
6. Plate heat exchanger according to claim 1, wherein the inlet pipe for the hot fluid, the inlet pipe for the cold fluid and the outlet pipe for the heated fluid are arranged in the region of the same end of the chamber.
7. Plate heat exchanger according to claim 2, wherein the inlet pipe for the hot fluid, the inlet pipe for the cold fluid and the outlet pipe for the heated fluid are arranged in the region of the same end of the chamber.
8. Plate heat exchanger according to claim 3, wherein the inlet pipe for the hot fluid, the inlet pipe for the cold fluid and the outlet pipe for the heated fluid are arranged in the region of the same end of the chamber.
9. Plate heat exchanger according to claim 4, wherein the inlet pipe for the hot fluid, the inlet pipe for the cold fluid and the outlet pipe for the heated fluid are arranged in the region of the same end of the chamber.
US11/119,736 2004-05-06 2005-05-03 Plate heat exchanger Abandoned US20050247441A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0404908 2004-05-06
FR0404908A FR2869979B1 (en) 2004-05-06 2004-05-06 PLATE HEAT EXCHANGER

Publications (1)

Publication Number Publication Date
US20050247441A1 true US20050247441A1 (en) 2005-11-10

Family

ID=34942234

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/119,736 Abandoned US20050247441A1 (en) 2004-05-06 2005-05-03 Plate heat exchanger

Country Status (6)

Country Link
US (1) US20050247441A1 (en)
EP (1) EP1593925B1 (en)
JP (1) JP4549228B2 (en)
CN (1) CN1329706C (en)
DE (1) DE602005011356D1 (en)
FR (1) FR2869979B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080283230A1 (en) * 2007-05-15 2008-11-20 Kabushiki Kaisha Toshiba Heat exchanger

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630276A (en) * 1970-02-10 1971-12-28 Nasa Shell-side liquid metal boiler
US4010797A (en) * 1974-03-04 1977-03-08 C F Braun & Co Heat exchanger
US4585053A (en) * 1982-09-02 1986-04-29 The United States Of America As Represented By The United States Department Of Energy Heat exchanger for reactor core and the like
US4706742A (en) * 1985-05-24 1987-11-17 Kraftwerk Union Aktiengesellschaft Raw gas/purified gas heat exchanger
US5333681A (en) * 1990-12-21 1994-08-02 Packinox Sa Heat exchanger of the plate type
US5755280A (en) * 1995-05-04 1998-05-26 Packinox Plate-type heat exchanger
US5915465A (en) * 1997-03-14 1999-06-29 Deutsche Babcock-Borsig Aktiengesellschaft Heat exchanger
US6089313A (en) * 1996-07-16 2000-07-18 Packinox Apparatus for exchanging heat between at least three fluids

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH296797A (en) * 1951-11-30 1954-02-28 Tech Studien Ag Plate heat exchanger for two gases with a considerable pressure difference.
FR2702831B1 (en) * 1993-03-17 1995-05-24 Faudat Method and device for cooling the enclosure of a heat exchanger.
DK0814841T3 (en) * 1995-03-21 2002-03-04 Applied Research Systems Liquid hCG formulations
SE506894C2 (en) * 1995-12-04 1998-02-23 Edmeston Ab Pipe heat exchanger with double-walled jacket and process and plant for the production of carbon black
FR2793875B1 (en) * 1999-05-19 2001-08-03 Packinox Sa PLATE HEAT EXCHANGER
JP2003222495A (en) * 2002-01-31 2003-08-08 Sumitomo Precision Prod Co Ltd Fin member for heat exchange and heat exchanger using the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630276A (en) * 1970-02-10 1971-12-28 Nasa Shell-side liquid metal boiler
US4010797A (en) * 1974-03-04 1977-03-08 C F Braun & Co Heat exchanger
US4585053A (en) * 1982-09-02 1986-04-29 The United States Of America As Represented By The United States Department Of Energy Heat exchanger for reactor core and the like
US4706742A (en) * 1985-05-24 1987-11-17 Kraftwerk Union Aktiengesellschaft Raw gas/purified gas heat exchanger
US5333681A (en) * 1990-12-21 1994-08-02 Packinox Sa Heat exchanger of the plate type
US5755280A (en) * 1995-05-04 1998-05-26 Packinox Plate-type heat exchanger
US6089313A (en) * 1996-07-16 2000-07-18 Packinox Apparatus for exchanging heat between at least three fluids
US5915465A (en) * 1997-03-14 1999-06-29 Deutsche Babcock-Borsig Aktiengesellschaft Heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080283230A1 (en) * 2007-05-15 2008-11-20 Kabushiki Kaisha Toshiba Heat exchanger
US8272429B2 (en) * 2007-05-15 2012-09-25 Kabushiki Kaisha Toshiba Heat exchanger

Also Published As

Publication number Publication date
CN1693831A (en) 2005-11-09
EP1593925A1 (en) 2005-11-09
JP2005321189A (en) 2005-11-17
CN1329706C (en) 2007-08-01
DE602005011356D1 (en) 2009-01-15
EP1593925B1 (en) 2008-12-03
FR2869979A1 (en) 2005-11-11
FR2869979B1 (en) 2006-08-04
JP4549228B2 (en) 2010-09-22

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AS Assignment

Owner name: PACKINOX, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BUSSONNET, PIERRE-XAVIER;BENEZECH, SYLVAIN;REEL/FRAME:016326/0777

Effective date: 20050427

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION