GB2240197B - Pumping systems - Google Patents

Pumping systems

Info

Publication number
GB2240197B
GB2240197B GB9024700A GB9024700A GB2240197B GB 2240197 B GB2240197 B GB 2240197B GB 9024700 A GB9024700 A GB 9024700A GB 9024700 A GB9024700 A GB 9024700A GB 2240197 B GB2240197 B GB 2240197B
Authority
GB
United Kingdom
Prior art keywords
pumping systems
pumping
systems
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 - Fee Related
Application number
GB9024700A
Other versions
GB2240197A (en
GB9024700D0 (en
Inventor
John Matheson
Peter Hassall
Colin Stanley Smith
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.)
Thomas Willett and Co Ltd
Original Assignee
Thomas Willett and Co Ltd
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 Thomas Willett and Co Ltd filed Critical Thomas Willett and Co Ltd
Publication of GB9024700D0 publication Critical patent/GB9024700D0/en
Publication of GB2240197A publication Critical patent/GB2240197A/en
Application granted granted Critical
Publication of GB2240197B publication Critical patent/GB2240197B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
GB9024700A 1989-12-16 1990-11-14 Pumping systems Expired - Fee Related GB2240197B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898928450A GB8928450D0 (en) 1989-12-16 1989-12-16 Pumping systems

Publications (3)

Publication Number Publication Date
GB9024700D0 GB9024700D0 (en) 1991-01-02
GB2240197A GB2240197A (en) 1991-07-24
GB2240197B true GB2240197B (en) 1994-01-26

Family

ID=10668062

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898928450A Pending GB8928450D0 (en) 1989-12-16 1989-12-16 Pumping systems
GB9024700A Expired - Fee Related GB2240197B (en) 1989-12-16 1990-11-14 Pumping systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898928450A Pending GB8928450D0 (en) 1989-12-16 1989-12-16 Pumping systems

Country Status (1)

Country Link
GB (2) GB8928450D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549456A (en) * 1994-07-27 1996-08-27 Rule Industries, Inc. Automatic pump control system with variable test cycle initiation frequency

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1154866A (en) * 1965-11-05 1969-06-11 Zinser Textilmaschinen Gmbh Device for Moving a Ring Rail or Spindle Rail of a Textile Machine
GB1492179A (en) * 1974-10-31 1977-11-16 Mullard Ltd Mechanical scanning arrangement
WO1981003206A1 (en) * 1980-05-09 1981-11-12 T Gilbertson Oil well pump driving unit
GB2084408A (en) * 1980-09-08 1982-04-07 Bosch Gmbh Robert Electromagnetically Actuated, Unidirectional Piston Pump
GB2170869A (en) * 1985-02-12 1986-08-13 Willett Thomas & Co Ltd Pumping systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1154866A (en) * 1965-11-05 1969-06-11 Zinser Textilmaschinen Gmbh Device for Moving a Ring Rail or Spindle Rail of a Textile Machine
GB1492179A (en) * 1974-10-31 1977-11-16 Mullard Ltd Mechanical scanning arrangement
WO1981003206A1 (en) * 1980-05-09 1981-11-12 T Gilbertson Oil well pump driving unit
GB2084408A (en) * 1980-09-08 1982-04-07 Bosch Gmbh Robert Electromagnetically Actuated, Unidirectional Piston Pump
GB2170869A (en) * 1985-02-12 1986-08-13 Willett Thomas & Co Ltd Pumping systems

Also Published As

Publication number Publication date
GB2240197A (en) 1991-07-24
GB9024700D0 (en) 1991-01-02
GB8928450D0 (en) 1990-02-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971114

728V Application for restoration filed (sect. 28/1977)
728Y Application for restoration allowed (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081114