GB1289649A - - Google Patents

Info

Publication number
GB1289649A
GB1289649A GB1289649DA GB1289649A GB 1289649 A GB1289649 A GB 1289649A GB 1289649D A GB1289649D A GB 1289649DA GB 1289649 A GB1289649 A GB 1289649A
Authority
GB
United Kingdom
Prior art keywords
rubber
motor
kolfertz
couping
aerating
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
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1289649A publication Critical patent/GB1289649A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
GB1289649D 1969-07-29 1970-04-20 Expired GB1289649A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938430A DE1938430C3 (de) 1969-07-29 1969-07-29 Elektrische Doppelmembranpumpe, z.B. als Luftpumpe zum Belüften von Aquarien

Publications (1)

Publication Number Publication Date
GB1289649A true GB1289649A (enrdf_load_stackoverflow) 1972-09-20

Family

ID=5741214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289649D Expired GB1289649A (enrdf_load_stackoverflow) 1969-07-29 1970-04-20

Country Status (7)

Country Link
US (1) US3635592A (enrdf_load_stackoverflow)
CA (1) CA924182A (enrdf_load_stackoverflow)
CH (1) CH503903A (enrdf_load_stackoverflow)
DE (1) DE1938430C3 (enrdf_load_stackoverflow)
FR (1) FR2056184A5 (enrdf_load_stackoverflow)
GB (1) GB1289649A (enrdf_load_stackoverflow)
SE (1) SE360435B (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746478A (en) * 1971-06-25 1973-07-17 Metaframe Corp Wall-mount air pump
DE7132711U (de) * 1971-08-27 1972-01-20 Kolfertz E Membranpumpe
US3784334A (en) * 1972-04-03 1974-01-08 Johnson Service Co Electromagnetically driven fluid compressing apparatus
JPS53140603A (en) * 1977-05-16 1978-12-07 Enomoto Maikuroponpu Seisakush Reciprocating type electromagnetic pump
AU6776387A (en) * 1985-12-11 1987-06-30 Saggers, M.J. Improvements in vibratory diaphragm pumps
FR2649447B1 (fr) * 1989-07-07 1991-09-27 Rena Sa Pompe a membrane
US6616413B2 (en) * 1998-03-20 2003-09-09 James C. Humpheries Automatic optimizing pump and sensor system
JP2000179465A (ja) * 1998-10-05 2000-06-27 Tominaga Jushi Kogyosho:Kk 観賞魚水槽用空気・水兼用ポンプおよび回遊路付観賞魚水槽装置
US6270681B1 (en) * 1999-04-30 2001-08-07 Mg Industries Aeration pond with oxygen recycling
US6354817B1 (en) * 2000-01-03 2002-03-12 Horng Jiun Chang Pressurized air supplying device for vehicle
US20070102233A1 (en) * 2005-11-07 2007-05-10 Eiko Electric Products Corp. Air pumping device with silencing effect for aquarium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194535A (en) * 1937-04-15 1940-03-26 Vedee Corp Electric translating device
US2267280A (en) * 1937-10-15 1941-12-23 Hermes Patentverwertungs Gmbh Device for conveying fluids
US3545894A (en) * 1969-04-15 1970-12-08 Sternco Ind Inc Air pump

Also Published As

Publication number Publication date
DE1938430C3 (de) 1974-08-29
DE1938430B2 (de) 1974-02-07
CA924182A (en) 1973-04-10
CH503903A (de) 1971-02-28
SE360435B (enrdf_load_stackoverflow) 1973-09-24
DE1938430A1 (de) 1971-02-18
FR2056184A5 (enrdf_load_stackoverflow) 1971-05-14
US3635592A (en) 1972-01-18

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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