GB1408030A - Silencer for exhaust gases - Google Patents
Silencer for exhaust gasesInfo
- Publication number
- GB1408030A GB1408030A GB5581572A GB5581572A GB1408030A GB 1408030 A GB1408030 A GB 1408030A GB 5581572 A GB5581572 A GB 5581572A GB 5581572 A GB5581572 A GB 5581572A GB 1408030 A GB1408030 A GB 1408030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- partitions
- define
- dec
- curved
- 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.)
- Expired
Links
- 239000007789 gas Substances 0.000 title 1
- 230000003584 silencer Effects 0.000 title 1
- 238000005192 partition Methods 0.000 abstract 7
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000011358 absorbing material Substances 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 229920001225 polyester resin Polymers 0.000 abstract 1
- 239000004645 polyester resin Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 210000002268 wool Anatomy 0.000 abstract 1
Classifications
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
1408030 Exhaust gas silencers SAFETY VEHICLES DEVELOPMENT AB 4 Dec 1972 [6 Dec 1971] 55815/72 Heading F1B At least one of the partition walls 4, 34, 35, 36 is curved or has a curved portion with a concave surface directed towards the casing inlet 2a. The at least one partition has a curved end spaced from the casing wall 13 to define a flow opening 5. The openings 10, 11, 39, 40 in the partitions or defined by the partitions are at or adjacent opposite sides of the casing in adjacent partitions to define a zig-zag flow-path through the casing. Adjacent partitions may define a space which is filled with sound-absorbing material, e.g. mineral or steel wool. The casing 1 may be of square, rectangular, circular, oval or polyonal crosssection. The inlet and outlet connections 2a and 2b of the casing may be stepped to accommodate pipes of different sizes. The casing and partition walls may be formed of sheet metal and welded together or formed of fusion-welded glass fibre reinforced polyester resin.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7115632A SE402616B (en) | 1971-12-06 | 1971-12-06 | Muffler |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1408030A true GB1408030A (en) | 1975-10-01 |
Family
ID=20300961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5581572A Expired GB1408030A (en) | 1971-12-06 | 1972-12-04 | Silencer for exhaust gases |
Country Status (19)
Country | Link |
---|---|
US (1) | US3811531A (en) |
JP (1) | JPS4875944A (en) |
AR (1) | AR194975A1 (en) |
AU (1) | AU464197B2 (en) |
BE (1) | BE792300A (en) |
CA (1) | CA967830A (en) |
CS (1) | CS159206B2 (en) |
DD (1) | DD100307A5 (en) |
DE (1) | DE2259539A1 (en) |
ES (1) | ES409287A1 (en) |
FI (1) | FI49872C (en) |
FR (1) | FR2164305A5 (en) |
GB (1) | GB1408030A (en) |
IE (1) | IE37227B1 (en) |
IL (1) | IL41013A (en) |
IT (1) | IT975963B (en) |
NL (1) | NL7216515A (en) |
SE (1) | SE402616B (en) |
ZA (1) | ZA728585B (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192977A (en) * | 1986-06-26 | 1988-01-27 | Gormill Engineering Limited | Silencer |
RU2504667C1 (en) * | 2012-07-05 | 2014-01-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Поволжский государственный технологический университет | Silencer |
RU2568799C1 (en) * | 2014-06-25 | 2015-11-20 | Олег Савельевич Кочетов | Multi-section noise suppressor |
RU2594089C1 (en) * | 2015-09-08 | 2016-08-10 | Татьяна Дмитриевна Ходакова | Active aerodynamic noise suppressor |
RU2594088C1 (en) * | 2015-09-08 | 2016-08-10 | Мария Олеговна Стареева | Active noise suppressor of industrial vacuum cleaner |
RU2603854C1 (en) * | 2015-08-26 | 2016-12-10 | Олег Савельевич Кочетов | Combined kochetov noise suppressor |
RU2611224C1 (en) * | 2015-09-08 | 2017-02-21 | Олег Савельевич Кочетов | Reactive noise suppressor |
RU2611222C1 (en) * | 2015-09-08 | 2017-02-21 | Мария Олеговна Стареева | Active aerodynamic suppressor |
RU2611226C1 (en) * | 2015-09-08 | 2017-02-21 | Олег Савельевич Кочетов | Active aerodynamic suppressor |
RU2612767C1 (en) * | 2015-09-08 | 2017-03-13 | Татьяна Дмитриевна Ходакова | Shop vacuum cleaner noise suppressor |
RU2614564C1 (en) * | 2015-09-08 | 2017-03-28 | Мария Олеговна Стареева | Jet noise reducer |
RU2614566C1 (en) * | 2015-09-08 | 2017-03-28 | Татьяна Дмитриевна Ходакова | Jet noise reducer |
RU2622998C2 (en) * | 2015-09-08 | 2017-06-21 | Олег Савельевич Кочетов | Shop vacuum cleaner reactive noise suppressor |
RU2623583C2 (en) * | 2015-08-26 | 2017-06-28 | Олег Савельевич Кочетов | Reactive shop vacuum cleaner noise suppressor |
RU2626276C1 (en) * | 2016-03-18 | 2017-07-25 | Олег Савельевич Кочетов | Reactive noise suppressor of shop vacuum cleaner |
RU2626889C1 (en) * | 2016-03-29 | 2017-08-02 | Олег Савельевич Кочетов | Shop vacuum cleaner noise suppressor |
RU2638344C1 (en) * | 2016-12-09 | 2017-12-13 | Олег Савельевич Кочетов | Sound absorption element of annular type |
RU2645370C1 (en) * | 2017-06-14 | 2018-02-21 | Олег Савельевич Кочетов | Active sound muffler |
RU2647006C2 (en) * | 2015-09-08 | 2018-03-13 | Мария Михайловна Стареева | Active aerodynamic noise suppressor |
RU2649507C2 (en) * | 2015-09-08 | 2018-04-03 | Анна Михайловна Стареева | Active aerodynamic noise suppressor |
RU2652854C1 (en) * | 2016-11-09 | 2018-05-03 | Олег Савельевич Кочетов | Reactive noise suppressor of industrial vacuum cleaner |
RU2652853C1 (en) * | 2016-11-09 | 2018-05-03 | Олег Савельевич Кочетов | Combined aerodynamic noise suppressor for textile waste recycling systems |
RU2652844C1 (en) * | 2017-06-14 | 2018-05-03 | Олег Савельевич Кочетов | Active aerodynamic noise suppressor |
RU2653865C1 (en) * | 2016-11-09 | 2018-05-15 | Олег Савельевич Кочетов | Reactive noise suppressor |
RU2658900C2 (en) * | 2015-09-08 | 2018-06-25 | Мария Михайловна Стареева | Industrial vacuum cleaner active noise suppressor |
RU2658899C2 (en) * | 2015-09-08 | 2018-06-25 | Мария Михайловна Стареева | Reactive noise suppressor |
RU2659637C1 (en) * | 2017-10-05 | 2018-07-03 | Олег Савельевич Кочетов | Noise suppressor for the axial fan |
RU2661431C1 (en) * | 2017-10-06 | 2018-07-16 | Олег Савельевич Кочетов | Industrial vacuum cleaner noise silencer |
RU2661428C1 (en) * | 2017-10-06 | 2018-07-16 | Олег Савельевич Кочетов | Industrial vacuum cleaner active noise suppressor |
RU2663533C1 (en) * | 2017-11-08 | 2018-08-07 | Олег Савельевич Кочетов | Perforated ring type sound absorbing element |
RU2670474C2 (en) * | 2016-03-18 | 2018-10-23 | Мария Михайловна Стареева | Reactive silencer of industrial vacuum cleaner |
RU2670481C2 (en) * | 2015-09-08 | 2018-10-23 | Анна Михайловна Стареева | Aerodynamic silencer of industrial vacuum cleaner |
RU2670482C2 (en) * | 2015-09-08 | 2018-10-23 | Мария Михайловна Стареева | Aerodynamic silencer of industrial vacuum cleaner |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4027740A (en) * | 1975-02-10 | 1977-06-07 | Martin James F | Multi-chamber muffler |
JPS53146047A (en) * | 1977-05-25 | 1978-12-19 | Honda Motor Co Ltd | Muffler for internal combustion engine |
FR2484339B1 (en) * | 1980-06-17 | 1986-10-10 | Moulin Claude | PRIMARY OR SECONDARY EXHAUST PIPE (MUFFLER) |
FR2546970B1 (en) * | 1983-05-31 | 1987-09-25 | Mareau Betty | SILENCER FOR COMPRESSED AIR INSTALLATION |
US5146203A (en) * | 1990-10-15 | 1992-09-08 | Leonid Simuni | Automobile for racing |
SE508959C2 (en) * | 1995-02-24 | 1998-11-16 | Volvo Ab | Muffler for displacement compressors |
AU2599599A (en) | 1998-02-13 | 1999-08-30 | Donaldson Company Inc. | Mufflers for use with engine retarders; and methods |
US6082487A (en) * | 1998-02-13 | 2000-07-04 | Donaldson Company, Inc. | Mufflers for use with engine retarders; and methods |
US6615831B1 (en) * | 1999-07-02 | 2003-09-09 | Respironics, Inc. | Pressure support system and method and a pressure control valve for use in such system and method |
JP3885459B2 (en) * | 2000-04-07 | 2007-02-21 | いすゞ自動車株式会社 | Ventilating muffler unit and ventilated muffler |
US20030173147A1 (en) * | 2002-03-12 | 2003-09-18 | Leon Mazurets | Tikho |
US20050155820A1 (en) * | 2004-01-16 | 2005-07-21 | Flugger Ray T. | One-piece end cap for a muffler and method of forming same |
US7819223B2 (en) * | 2006-04-03 | 2010-10-26 | Praxair Technology, Inc. | Silencer for adsorption-based gas separation systems |
US7717229B2 (en) * | 2008-05-09 | 2010-05-18 | Siemens Energy, Inc. | Gas turbine exhaust sound suppressor and associated methods |
EP2284126A1 (en) * | 2009-08-13 | 2011-02-16 | Koninklijke Philips Electronics N.V. | Device comprising flow guides and a source for emitting ultraviolet light |
US8104572B2 (en) * | 2010-01-22 | 2012-01-31 | Butler Boyd L | Spin muffler |
US8087492B2 (en) * | 2010-03-08 | 2012-01-03 | Huntair, Inc. | Methods and systems for integrating sound attenuation into a filter bank |
JP5540802B2 (en) * | 2010-03-22 | 2014-07-02 | 株式会社デンソー | Secondary air control valve |
US8640822B2 (en) * | 2011-08-02 | 2014-02-04 | Lewis S. Schooler | Exhaust muffler |
US9488079B2 (en) * | 2012-02-07 | 2016-11-08 | Black Widow Performance, Inc. | Muffler for automobile |
CN102748096B (en) * | 2012-04-25 | 2015-05-27 | 常州窦氏气动机械有限公司 | Noise elimination device for pneumatic motor |
US9086248B2 (en) * | 2013-06-24 | 2015-07-21 | Gemini Technologies, Inc. | Sound suppressor |
CN104575482A (en) * | 2014-12-29 | 2015-04-29 | 浙江天晨胶业股份有限公司 | Air silencer |
US9587536B2 (en) | 2015-04-27 | 2017-03-07 | Charles C. Belt | Exhaust muffler |
RU2600186C1 (en) * | 2015-08-26 | 2016-10-20 | Олег Савельевич Кочетов | Gas flow noise suppressor |
RU2630047C2 (en) * | 2015-08-26 | 2017-09-05 | Олег Савельевич Кочетов | Noise suppressor of cone-type gas flow |
US10274224B2 (en) * | 2015-11-04 | 2019-04-30 | Modine Manufacturing Company | Discharge plenum for packaged HVAC unit |
DE102016201122A1 (en) * | 2016-01-27 | 2017-07-27 | Bayerische Motoren Werke Aktiengesellschaft | Silencer for an exhaust system |
RU2624078C1 (en) * | 2016-03-18 | 2017-06-30 | Олег Савельевич Кочетов | Suppressor of gas flow noise of cone type |
RU2658896C2 (en) * | 2016-03-18 | 2018-06-25 | Мария Михайловна Стареева | Cone type gas flow noise muffler |
RU2626289C1 (en) * | 2016-03-29 | 2017-07-25 | Олег Савельевич Кочетов | Gas flow noise suppressor |
DE102016108957A1 (en) * | 2016-05-13 | 2017-11-16 | Bdr Thermea Group B.V. | Exhaust silencer for an exhaust pipe, in particular for an emerging from an oil-fired boiler exhaust pipe |
RU169669U1 (en) * | 2016-06-10 | 2017-03-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | PUMP BODY SILENCER |
RU2641985C1 (en) * | 2016-10-10 | 2018-01-23 | Олег Савельевич Кочетов | Gas flow noise suppressor |
US10273844B2 (en) * | 2017-03-13 | 2019-04-30 | Matt Sheridan | Muffler |
CN114732310A (en) * | 2021-12-11 | 2022-07-12 | 帝舍智能科技(武汉)有限公司 | Cleaning equipment is with low noise water tank and cleaning equipment |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1002801A (en) * | 1911-02-02 | 1911-09-05 | Novelty Mfg Co | Automobile-muffler. |
US1474115A (en) * | 1923-06-12 | 1923-11-13 | Heather Frederick | Means for silencing explosion noises connected with motor cars, motor vehicles; cycle, gas, oil, and steam engines |
DE454836C (en) * | 1925-03-29 | 1928-01-18 | Lorenz Nix | Muffler for internal combustion engines |
US1665211A (en) * | 1926-01-20 | 1928-04-10 | Aubrey M Kennedy | Sound-neutralizing ventilator |
GB290737A (en) * | 1927-02-21 | 1928-05-21 | James Parkinson | Improvements in exhaust silencers for internal combustion engines |
GB303997A (en) * | 1927-12-14 | 1929-01-17 | Rover Co Ltd | Improvements in exhaust silencers for internal combustion engines |
US1989675A (en) * | 1931-09-10 | 1935-02-05 | Susan Hunt | Muffler |
US2499018A (en) * | 1948-01-26 | 1950-02-28 | Christiano Frank | Baffle type muffler with plural tubular passages |
AT167375B (en) * | 1949-02-16 | 1950-12-27 | Karl Kaller | Silencers for exhaust pipes of internal combustion engines |
US3670845A (en) * | 1970-06-15 | 1972-06-20 | William M Betts | Marine mufflers |
-
0
- BE BE792300D patent/BE792300A/en unknown
-
1971
- 1971-12-06 SE SE7115632A patent/SE402616B/en unknown
-
1972
- 1972-12-04 GB GB5581572A patent/GB1408030A/en not_active Expired
- 1972-12-04 ES ES409287A patent/ES409287A1/en not_active Expired
- 1972-12-05 FR FR7243233A patent/FR2164305A5/fr not_active Expired
- 1972-12-05 ZA ZA728585A patent/ZA728585B/en unknown
- 1972-12-05 FI FI723451A patent/FI49872C/en active
- 1972-12-05 DE DE2259539A patent/DE2259539A1/en not_active Withdrawn
- 1972-12-05 CA CA158,076A patent/CA967830A/en not_active Expired
- 1972-12-05 US US00312317A patent/US3811531A/en not_active Expired - Lifetime
- 1972-12-05 IE IE1697/72A patent/IE37227B1/en unknown
- 1972-12-05 CS CS830972A patent/CS159206B2/cs unknown
- 1972-12-06 IT IT70838/72A patent/IT975963B/en active
- 1972-12-06 JP JP47122323A patent/JPS4875944A/ja active Pending
- 1972-12-06 AR AR245526A patent/AR194975A1/en active
- 1972-12-06 DD DD167329A patent/DD100307A5/xx unknown
- 1972-12-06 NL NL7216515A patent/NL7216515A/xx not_active Application Discontinuation
- 1972-12-06 IL IL41013A patent/IL41013A/en unknown
- 1972-12-06 AU AU49683/72A patent/AU464197B2/en not_active Expired
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192977B (en) * | 1986-06-26 | 1989-12-13 | Gormill Engineering Limited | Silencer |
GB2192977A (en) * | 1986-06-26 | 1988-01-27 | Gormill Engineering Limited | Silencer |
RU2504667C1 (en) * | 2012-07-05 | 2014-01-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Поволжский государственный технологический университет | Silencer |
RU2568799C1 (en) * | 2014-06-25 | 2015-11-20 | Олег Савельевич Кочетов | Multi-section noise suppressor |
RU2603854C1 (en) * | 2015-08-26 | 2016-12-10 | Олег Савельевич Кочетов | Combined kochetov noise suppressor |
RU2623583C2 (en) * | 2015-08-26 | 2017-06-28 | Олег Савельевич Кочетов | Reactive shop vacuum cleaner noise suppressor |
RU2612767C1 (en) * | 2015-09-08 | 2017-03-13 | Татьяна Дмитриевна Ходакова | Shop vacuum cleaner noise suppressor |
RU2647006C2 (en) * | 2015-09-08 | 2018-03-13 | Мария Михайловна Стареева | Active aerodynamic noise suppressor |
RU2611222C1 (en) * | 2015-09-08 | 2017-02-21 | Мария Олеговна Стареева | Active aerodynamic suppressor |
RU2611226C1 (en) * | 2015-09-08 | 2017-02-21 | Олег Савельевич Кочетов | Active aerodynamic suppressor |
RU2658900C2 (en) * | 2015-09-08 | 2018-06-25 | Мария Михайловна Стареева | Industrial vacuum cleaner active noise suppressor |
RU2614564C1 (en) * | 2015-09-08 | 2017-03-28 | Мария Олеговна Стареева | Jet noise reducer |
RU2614566C1 (en) * | 2015-09-08 | 2017-03-28 | Татьяна Дмитриевна Ходакова | Jet noise reducer |
RU2622998C2 (en) * | 2015-09-08 | 2017-06-21 | Олег Савельевич Кочетов | Shop vacuum cleaner reactive noise suppressor |
RU2594088C1 (en) * | 2015-09-08 | 2016-08-10 | Мария Олеговна Стареева | Active noise suppressor of industrial vacuum cleaner |
RU2658899C2 (en) * | 2015-09-08 | 2018-06-25 | Мария Михайловна Стареева | Reactive noise suppressor |
RU2594089C1 (en) * | 2015-09-08 | 2016-08-10 | Татьяна Дмитриевна Ходакова | Active aerodynamic noise suppressor |
RU2670482C2 (en) * | 2015-09-08 | 2018-10-23 | Мария Михайловна Стареева | Aerodynamic silencer of industrial vacuum cleaner |
RU2670481C2 (en) * | 2015-09-08 | 2018-10-23 | Анна Михайловна Стареева | Aerodynamic silencer of industrial vacuum cleaner |
RU2611224C1 (en) * | 2015-09-08 | 2017-02-21 | Олег Савельевич Кочетов | Reactive noise suppressor |
RU2649507C2 (en) * | 2015-09-08 | 2018-04-03 | Анна Михайловна Стареева | Active aerodynamic noise suppressor |
RU2670474C2 (en) * | 2016-03-18 | 2018-10-23 | Мария Михайловна Стареева | Reactive silencer of industrial vacuum cleaner |
RU2626276C1 (en) * | 2016-03-18 | 2017-07-25 | Олег Савельевич Кочетов | Reactive noise suppressor of shop vacuum cleaner |
RU2626889C1 (en) * | 2016-03-29 | 2017-08-02 | Олег Савельевич Кочетов | Shop vacuum cleaner noise suppressor |
RU2653865C1 (en) * | 2016-11-09 | 2018-05-15 | Олег Савельевич Кочетов | Reactive noise suppressor |
RU2652853C1 (en) * | 2016-11-09 | 2018-05-03 | Олег Савельевич Кочетов | Combined aerodynamic noise suppressor for textile waste recycling systems |
RU2652854C1 (en) * | 2016-11-09 | 2018-05-03 | Олег Савельевич Кочетов | Reactive noise suppressor of industrial vacuum cleaner |
RU2638344C1 (en) * | 2016-12-09 | 2017-12-13 | Олег Савельевич Кочетов | Sound absorption element of annular type |
RU2652844C1 (en) * | 2017-06-14 | 2018-05-03 | Олег Савельевич Кочетов | Active aerodynamic noise suppressor |
RU2645370C1 (en) * | 2017-06-14 | 2018-02-21 | Олег Савельевич Кочетов | Active sound muffler |
RU2659637C1 (en) * | 2017-10-05 | 2018-07-03 | Олег Савельевич Кочетов | Noise suppressor for the axial fan |
RU2661431C1 (en) * | 2017-10-06 | 2018-07-16 | Олег Савельевич Кочетов | Industrial vacuum cleaner noise silencer |
RU2661428C1 (en) * | 2017-10-06 | 2018-07-16 | Олег Савельевич Кочетов | Industrial vacuum cleaner active noise suppressor |
RU2663533C1 (en) * | 2017-11-08 | 2018-08-07 | Олег Савельевич Кочетов | Perforated ring type sound absorbing element |
Also Published As
Publication number | Publication date |
---|---|
IL41013A (en) | 1975-06-25 |
NL7216515A (en) | 1973-06-08 |
IE37227B1 (en) | 1977-06-08 |
AR194975A1 (en) | 1973-08-30 |
AU464197B2 (en) | 1975-08-21 |
FI49872B (en) | 1975-06-30 |
SE402616B (en) | 1978-07-10 |
ES409287A1 (en) | 1976-03-16 |
BE792300A (en) | 1973-03-30 |
AU4968372A (en) | 1974-06-06 |
ZA728585B (en) | 1973-08-29 |
JPS4875944A (en) | 1973-10-12 |
DD100307A5 (en) | 1973-09-12 |
FI49872C (en) | 1975-10-10 |
IT975963B (en) | 1974-08-10 |
IE37227L (en) | 1973-06-06 |
FR2164305A5 (en) | 1973-07-27 |
CS159206B2 (en) | 1974-12-27 |
IL41013A0 (en) | 1973-02-28 |
US3811531A (en) | 1974-05-21 |
CA967830A (en) | 1975-05-20 |
DE2259539A1 (en) | 1973-06-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |