GB2294295B - Hydraulic control system - Google Patents

Hydraulic control system

Info

Publication number
GB2294295B
GB2294295B GB9521451A GB9521451A GB2294295B GB 2294295 B GB2294295 B GB 2294295B GB 9521451 A GB9521451 A GB 9521451A GB 9521451 A GB9521451 A GB 9521451A GB 2294295 B GB2294295 B GB 2294295B
Authority
GB
United Kingdom
Prior art keywords
control system
hydraulic control
hydraulic
control
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
GB9521451A
Other versions
GB9521451D0 (en
GB2294295A (en
Inventor
John Hirst Walker
Peter Elliott-Moore
Christopher Julian Oziem
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.)
Longwall Roof Supports Ltd
Original Assignee
Longwall Roof Supports 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
Priority claimed from GB9423211A external-priority patent/GB9423211D0/en
Application filed by Longwall Roof Supports Ltd filed Critical Longwall Roof Supports Ltd
Priority to GB9521451A priority Critical patent/GB2294295B/en
Publication of GB9521451D0 publication Critical patent/GB9521451D0/en
Publication of GB2294295A publication Critical patent/GB2294295A/en
Application granted granted Critical
Publication of GB2294295B publication Critical patent/GB2294295B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0821—Attachment or sealing of modular units to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
GB9521451A 1994-11-17 1995-10-19 Hydraulic control system Expired - Fee Related GB2294295B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9521451A GB2294295B (en) 1994-11-17 1995-10-19 Hydraulic control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9423211A GB9423211D0 (en) 1994-11-17 1994-11-17 Hydraulic control system
GB9521451A GB2294295B (en) 1994-11-17 1995-10-19 Hydraulic control system

Publications (3)

Publication Number Publication Date
GB9521451D0 GB9521451D0 (en) 1995-12-20
GB2294295A GB2294295A (en) 1996-04-24
GB2294295B true GB2294295B (en) 1997-12-10

Family

ID=26305997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9521451A Expired - Fee Related GB2294295B (en) 1994-11-17 1995-10-19 Hydraulic control system

Country Status (1)

Country Link
GB (1) GB2294295B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0803653B1 (en) * 1996-04-26 2000-08-02 Hygrama Ag Pneumatic commandassembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407801A (en) * 1971-10-28 1975-09-24 Dowty Mining Equipment Ltd Hydraulic apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407801A (en) * 1971-10-28 1975-09-24 Dowty Mining Equipment Ltd Hydraulic apparatus

Also Published As

Publication number Publication date
GB9521451D0 (en) 1995-12-20
GB2294295A (en) 1996-04-24

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20121019