GB1374301A – Catalytic structure
– Google Patents
GB1374301A – Catalytic structure
– Google Patents
Catalytic structure
Info
Publication number
GB1374301A
GB1374301A
GB5113971A
GB5113971A
GB1374301A
GB 1374301 A
GB1374301 A
GB 1374301A
GB 5113971 A
GB5113971 A
GB 5113971A
GB 5113971 A
GB5113971 A
GB 5113971A
GB 1374301 A
GB1374301 A
GB 1374301A
Authority
GB
United Kingdom
Prior art keywords
sheets
nov
cylindrical members
catalyst structure
cooling
Prior art date
1970-11-03
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.)
Expired
Application number
GB5113971A
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.)
SAES Getters SpA
Original Assignee
SAES Getters SpA
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.)
1970-11-03
Filing date
1971-11-03
Publication date
1974-11-20
1971-11-03
Application filed by SAES Getters SpA
filed
Critical
SAES Getters SpA
1974-11-20
Publication of GB1374301A
publication
Critical
patent/GB1374301A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J35/00—Catalysts, in general, characterised by their form or physical properties
B01J35/02—Solids
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
B01J12/007—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor in the presence of catalytically active bodies, e.g. porous plates
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
B01J23/48—Silver or gold
B01J23/50—Silver
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07D—HETEROCYCLIC COMPOUNDS
C07D301/00—Preparation of oxiranes
C07D301/02—Synthesis of the oxirane ring
C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
F01N3/28—Construction of catalytic reactors
F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
F01N3/2807—Metal other than sintered metal
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
B01J2208/00796—Details of the reactor or of the particulate material
B01J2208/00805—Details of the particulate material
B01J2208/00814—Details of the particulate material the particulate material being provides in prefilled containers
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/18—Details relating to the spatial orientation of the reactor
B01J2219/185—Details relating to the spatial orientation of the reactor vertical
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/24—Stationary reactors without moving elements inside
B01J2219/2401—Reactors comprising multiple separate flow channels
B01J2219/245—Plate-type reactors
B01J2219/2451—Geometry of the reactor
B01J2219/2455—Plates arranged radially
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/24—Stationary reactors without moving elements inside
B01J2219/2401—Reactors comprising multiple separate flow channels
B01J2219/245—Plate-type reactors
B01J2219/2476—Construction materials
B01J2219/2477—Construction materials of the catalysts
B01J2219/2479—Catalysts coated on the surface of plates or inserts
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/24—Stationary reactors without moving elements inside
B01J2219/2401—Reactors comprising multiple separate flow channels
B01J2219/245—Plate-type reactors
B01J2219/2476—Construction materials
B01J2219/2477—Construction materials of the catalysts
B01J2219/2482—Catalytically active foils; Plates having catalytically activity on their own
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/24—Stationary reactors without moving elements inside
B01J2219/2401—Reactors comprising multiple separate flow channels
B01J2219/245—Plate-type reactors
B01J2219/2476—Construction materials
B01J2219/2483—Construction materials of the plates
B01J2219/2485—Metals or alloys
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
B01J2219/324—Composition or microstructure of the elements
B01J2219/32466—Composition or microstructure of the elements comprising catalytically active material
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
B01J2219/324—Composition or microstructure of the elements
B01J2219/32466—Composition or microstructure of the elements comprising catalytically active material
B01J2219/32475—Composition or microstructure of the elements comprising catalytically active material involving heat exchange
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T29/00—Metal working
Y10T29/49—Method of mechanical manufacture
Y10T29/49345—Catalytic device making
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/00—Stock material or miscellaneous articles
Y10T428/12—All metal or with adjacent metals
Y10T428/12229—Intermediate article [e.g., blank, etc.]
Y10T428/12236—Panel having nonrectangular perimeter
Y10T428/1225—Symmetrical
Abstract
1374301 Catalyst structure S A E S GETTERS SpA 3 Nov 1971 [3 Nov 1970] 51139/71 Heading B1F A catalyst structure with improved heating/ cooling arrangements, e.g. having a plan as in Fig. 7, comprises metal sheets 52, 54, having catalyst particles harder than the metal partially embedded in both sides of the sheets, the sheets making good heat exchange contact with cylindrical members 53, 55 for heating and/or cooling by fluid passing through the annular spaces between cylindrical members 55, 24 and 11, 53. Fig. 13 shows how good contact can be made in another embodiment. Fig. 17 shows another arrangement of a single sheet formed by bending a sheet at a plurality of pairs of depressions 123 and 121, Fig. 20.
GB5113971A
1970-11-03
1971-11-03
Catalytic structure
Expired
GB1374301A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT3130770
1970-11-03
Publications (1)
Publication Number
Publication Date
GB1374301A
true
GB1374301A
(en)
1974-11-20
Family
ID=11233429
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5113971A
Expired
GB1374301A
(en)
1970-11-03
1971-11-03
Catalytic structure
Country Status (7)
Country
Link
US
(1)
US3857680A
(en)
JP
(1)
JPS5551624B1
(en)
DE
(1)
DE2154010C3
(en)
FR
(1)
FR2113249A5
(en)
GB
(1)
GB1374301A
(en)
NL
(1)
NL173247C
(en)
SU
(1)
SU434641A3
(en)
Cited By (3)
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Priority date
Publication date
Assignee
Title
DE4420753A1
(en)
*
1994-06-15
1995-09-21
Daimler Benz Ag
Methanol reformation
US5672629A
(en)
*
1994-06-15
1997-09-30
Daimler-Benz Ag
Two-stage reforming of methanol
EP1422397A2
(en)
*
2002-11-19
2004-05-26
Cataler Corporation
Exhaust-gas purifying apparatus
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Publication date
Assignee
Title
IT955185B
(en)
*
1972-04-29
1973-09-29
Saes Getter Spa
CATALYTIC CARTRIDGE
US3856709A
(en)
*
1972-04-29
1974-12-24
Getters Spa
Coating a substrate with soft particles
US4039294A
(en)
*
1975-05-21
1977-08-02
Mayer Edward A
Filter for internal combustion exhaust gases
US4190105A
(en)
*
1976-08-11
1980-02-26
Gerhard Dankowski
Heat exchange tube
DE2811115A1
(en)
*
1978-03-15
1979-09-27
Hoechst Ag
CARRIER CATALYST FOR THE PRODUCTION OF VINYL ACETATE FROM ETHYLENE, ACETIC ACID AND OXYGEN IN THE GAS PHASE
US4342642A
(en)
*
1978-05-30
1982-08-03
The Lummus Company
Steam pyrolysis of hydrocarbons
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1982-08-20
1984-02-27
Fujitsu General Ltd
Chopper type switching regulator
DE3332345C2
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1983-09-08
1986-08-07
Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim
Filter material made of metal mesh
DE3435319A1
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1984-09-26
1986-04-03
Michael 4150 Krefeld Laumen
CATALYTIC STEAM GENERATOR
DE3532408A1
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1985-09-11
1987-03-19
Sueddeutsche Kuehler Behr
CARRIER MATRIX, ESPECIALLY FOR A CATALYTIC REACTOR FOR EXHAUST GAS CLEANING IN INTERNAL COMBUSTION ENGINES
FI75100C
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1986-03-03
1988-05-09
Rm Metal Consulting Ky
Catalyst bed for exothermic reactions between gases or liquids.
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1988-07-25
1996-12-17
The Babcock & Wilcox Company
SOx, NOx and particulate removal system
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1988-09-22
1990-04-05
Emitec Gesellschaft Für Emissionstechnologie Mbh
Honeycomb structure, in particular catalyst support, composed of a plurality of interlaced bundles of sheet metal
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1989-06-06
1990-05-29
W. R. Grace & Co.,-Conn.
Metallic core member for catalytic converter and catalytic converter containing same
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1990-10-31
1991-12-10
W. R. Grace & Co. -Conn.
Structure for electrically heatable catalytic core
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1991-03-13
1992-09-15
W. R. Grace & Co.-Conn.
Electrically heatable catalytic converter insert
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1991-04-05
1992-12-15
W. R. Grace & Co.-Conn.
Composite catalytic converter
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*
1991-05-06
1993-08-31
W. R. Grace & Co.-Conn
Reinforced corrugated thin metal foil strip useful in a catalytic converter core, a catalytic converter core containing said strip and an electrically heatable catalytic converter containing said core
US5177961A
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1991-06-26
1993-01-12
W. R. Grace & Co.-Conn.
Upstream collimator for electrically heatable catalytic converter
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1991-08-20
1992-10-13
Danielson Associates, Inc.
Rough vacuum pump using bulk getter material
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1991-08-20
1992-11-10
Danielson Associates, Inc.
High vacuum pump using bulk getter material
US5140812A
(en)
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1991-11-05
1992-08-25
W. R. Grace & Co.-Conn.
Core for an electrically heatable catalytic converter
GB2294419A
(en)
*
1994-10-24
1996-05-01
Pgp Ind Inc
Handling foraminous sheets in industrial catalysis
US6029488A
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1995-06-20
2000-02-29
Emitec Gesellschaft Fuer Emissionstechnologie Mbh
Apparatus and process for producing a honeycomb body from intertwined sheet metal layers
US5846495A
(en)
*
1995-07-12
1998-12-08
Engelhard Corporation
Structure for converter body
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1999-08-31
2001-09-18
Micron Technology, Inc.
Method and apparatus for stabilizing high pressure oxidation of a semiconductor device
JP2001129407A
(en)
1999-11-09
2001-05-15
Cataler Corp
Pipe-shapes catalyst for purifying exhaust gas
US7678343B2
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*
1999-12-24
2010-03-16
Ineos Vinyls Uk Ltd.
Metallic monolith catalyst support for selective gas phase reactions in tubular fixed bed reactors
US7326669B2
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*
2001-09-20
2008-02-05
Honda Motor Co., Ltd.
Substrate having catalyst compositions on surfaces of opposite sides
US20070299148A1
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*
2004-11-12
2007-12-27
Verbist Guy Lode M M
Tubular Reactor With Packing
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2005-05-19
2010-03-23
Catacel Corp.
Catalytic reactor having radial leaves
AT501614B1
(en)
*
2005-07-08
2006-10-15
Peter Dipl Ing Lang
HEAT EXCHANGERS AND TEMPERATURE CONTAINERS WITH HEAT EXCHANGERS
DE102005043196A1
(en)
*
2005-09-09
2007-03-15
Emitec Gesellschaft Für Emissionstechnologie Mbh
Method for producing an annular honeycomb body, and annular honeycomb body
BR112014020373A2
(en)
2012-02-17
2019-09-24
Ceram Inc
advanced fischer tropsch system
CA2864519A1
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2012-02-21
2013-08-29
Ceramatec, Inc.
Compact ft combined with micro-fibrous supported nano-catalyst
EP2817090A4
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2012-02-21
2016-01-20
Ceramatec Inc
Compact fischer tropsch system with integrated primary and secondary bed temperature control
US9772149B2
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2012-07-10
2017-09-26
Intramicron, Inc.
Method for improving wall heat transfer in a chemical reactor
US20150315022A1
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*
2012-12-17
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Chemetics Inc.
Contact apparatus for oxidizing sulfur dioxide and systems for producing sulfuric acid
JP6387585B2
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2013-02-28
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株式会社Ihi
Reactor
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(en)
2013-07-26
2019-11-06
사빅 글로벌 테크놀러지스 비.브이.
Method and apparatus for producing high purity phosgene
EP3024783A1
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*
2013-07-26
2016-06-01
SABIC Global Technologies B.V.
Method and apparatus for producing high purity phosgene
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2014-02-04
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사빅 글로벌 테크놀러지스 비.브이.
Method for producing carbonates
KR101859207B1
(en)
2014-02-04
2018-05-18
사빅 글로벌 테크놀러지스 비.브이.
Method for producing carbonates
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*
2014-03-04
2014-04-16
Johnson Matthey Plc
Catalyst arrangement
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Senior Uk Limited
Finned coaxial cooler
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*
2015-08-25
2019-03-12
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Heat exchanger tube, heat exchanger and its assembly method for heat exchanger
US10454147B2
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2015-11-19
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Intramicron, Inc.
Battery pack for energy storage devices
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2020-09-02
2022-03-09
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Assignee
Title
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(en)
*
1948-03-30
1952-09-23
Heat X Changer Co Inc
Heat exchanger
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*
1952-11-17
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Griscom Russell Co
Catalyst finned tubing and method of making
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Method of producing substrate having a particulate metallic coating
1971
1971-10-26
FR
FR7138404A
patent/FR2113249A5/fr
not_active
Expired
1971-10-28
JP
JP8518771A
patent/JPS5551624B1/ja
active
Pending
1971-10-29
DE
DE2154010A
patent/DE2154010C3/en
not_active
Expired
1971-11-01
US
US00194445A
patent/US3857680A/en
not_active
Expired – Lifetime
1971-11-02
SU
SU1713964A
patent/SU434641A3/en
active
1971-11-03
NL
NLAANVRAGE7115134,A
patent/NL173247C/en
not_active
IP Right Cessation
1971-11-03
GB
GB5113971A
patent/GB1374301A/en
not_active
Expired
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE4420753A1
(en)
*
1994-06-15
1995-09-21
Daimler Benz Ag
Methanol reformation
US5672629A
(en)
*
1994-06-15
1997-09-30
Daimler-Benz Ag
Two-stage reforming of methanol
US5753194A
(en)
*
1994-06-15
1998-05-19
Daimler-Benz Ag
Two-stage reforming of methanol
EP1422397A2
(en)
*
2002-11-19
2004-05-26
Cataler Corporation
Exhaust-gas purifying apparatus
EP1422397A3
(en)
*
2002-11-19
2005-01-05
Cataler Corporation
Exhaust-gas purifying apparatus
US7374727B2
(en)
2002-11-19
2008-05-20
Cataler Corporation
Exhaust-gas purifying apparatus
Also Published As
Publication number
Publication date
DE2154010B2
(en)
1979-10-04
DE2154010A1
(en)
1972-05-04
NL173247C
(en)
1984-01-02
FR2113249A5
(en)
1972-06-23
JPS5551624B1
(en)
1980-12-25
US3857680A
(en)
1974-12-31
DE2154010C3
(en)
1980-06-12
NL173247B
(en)
1983-08-01
NL7115134A
(en)
1972-05-05
SU434641A3
(en)
1974-06-30
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NL190382C
(en)
1994-02-01
HEAT EXCHANGER EQUIPPED WITH A FLUID BED COMBUSTION CHAMBER.
NL7512408A
(en)
1976-04-27
ROTATABLE HEAT EXCHANGER WITH MULTIPLE FLOW.
ES178325Y
(en)
1973-05-01
SHUT-OFF VALVE, ESPECIALLY FOR INSTALLATION BETWEEN A HEATING RADIATOR AND ITS RETURN PIPE.
GB1035170A
(en)
1966-07-06
Plate-type heat exchangers or filters
GB909142A
(en)
1962-10-24
Envelope for a plate type heat exchanger
GB901914A
(en)
1962-07-25
Improvements in or relating to heat exchangers
ZA732032B
(en)
1974-02-27
Heat and/or mass exchanger operating by direct contact between a liquid and a gas
NL7708889A
(en)
1978-02-14
HEAT EXCHANGER COMBINATION WITH COMMON FLUE.
FR2086289A1
(en)
1971-12-31
Heat exchanger baffle plate
NL165839C
(en)
1981-05-15
HEAT EXCHANGER.
GB1405976A
(en)
1975-09-10
Plate-type heat exchanger
CH549749A
(en)
1974-05-31
VENTILATION ARRANGEMENT ON AT LEAST ONE HEAT EXCHANGER THROUGHOUT THE LIQUID.
NL169782C
(en)
1982-08-16
HEAT EXCHANGER WITH CONCENTRIC PIPES AND TUBES.
GB953894A
(en)
1964-04-02
A new or improved heat exchanger plate and heat exchangers including such plates
NL169364C
(en)
1982-07-01
HEAT EXCHANGER WITH SPIRAL-SUPPORTED TUBES.
DK130856B
(en)
1975-04-21
Heat exchanger.
Legal Events
Date
Code
Title
Description
1975-04-03
PS
Patent sealed [section 19, patents act 1949]
1987-06-24
PCNP
Patent ceased through non-payment of renewal fee
