GB2152622B - Pneumatic switching devices and linear feed motors incorporating such devices - Google Patents

Pneumatic switching devices and linear feed motors incorporating such devices

Info

Publication number
GB2152622B
GB2152622B GB08430758A GB8430758A GB2152622B GB 2152622 B GB2152622 B GB 2152622B GB 08430758 A GB08430758 A GB 08430758A GB 8430758 A GB8430758 A GB 8430758A GB 2152622 B GB2152622 B GB 2152622B
Authority
GB
United Kingdom
Prior art keywords
devices
linear feed
pneumatic switching
feed motors
motors incorporating
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
GB08430758A
Other versions
GB2152622A (en
GB8430758D0 (en
Inventor
Alan Bishop
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.)
Micro Consultants Ltd
Original Assignee
Micro Consultants 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 GB838332726A external-priority patent/GB8332726D0/en
Priority claimed from GB848415716A external-priority patent/GB8415716D0/en
Application filed by Micro Consultants Ltd filed Critical Micro Consultants Ltd
Publication of GB8430758D0 publication Critical patent/GB8430758D0/en
Publication of GB2152622A publication Critical patent/GB2152622A/en
Application granted granted Critical
Publication of GB2152622B publication Critical patent/GB2152622B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/088—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling devices movable inside conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Actuator (AREA)
GB08430758A 1983-12-08 1984-12-05 Pneumatic switching devices and linear feed motors incorporating such devices Expired GB2152622B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838332726A GB8332726D0 (en) 1983-12-08 1983-12-08 Pipe probes
GB848415716A GB8415716D0 (en) 1984-06-20 1984-06-20 Automatic pneumatic switching device

Publications (3)

Publication Number Publication Date
GB8430758D0 GB8430758D0 (en) 1985-01-16
GB2152622A GB2152622A (en) 1985-08-07
GB2152622B true GB2152622B (en) 1987-08-05

Family

ID=26287088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08430758A Expired GB2152622B (en) 1983-12-08 1984-12-05 Pneumatic switching devices and linear feed motors incorporating such devices

Country Status (1)

Country Link
GB (1) GB2152622B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8430131D0 (en) * 1984-11-29 1985-01-09 British Nuclear Fuels Plc Pipe crawlers
NL1003681C2 (en) * 1996-07-25 1998-01-28 Nederland Ptt Apparatus and method for removing cables from pipes.
ES2233658T3 (en) * 2000-12-15 2005-06-16 R. MARCHAL & CIE DEVICE AND PROCEDURE TO CLEAN A TUBE BY BRUSHING.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518330A (en) * 1947-11-20 1950-08-08 Jasper Cronje Duct rodding machine
GB1044201A (en) * 1962-10-10 1966-09-28 Post Office Improvements in or relating to pneumatic self-propelled apparatus
GB1011279A (en) * 1963-04-16 1965-11-24 Atlas Copco Ab Improvement in feeding device working in stepwise manner for a rock drill
GB2059000B (en) * 1979-08-21 1983-05-18 Post Office Pneumatically propelled duct motor
US4429720A (en) * 1982-09-23 1984-02-07 Beck Richard D Apparatus for seeking out and repairing leaks in pipes
GB2138532B (en) * 1983-03-31 1987-01-28 Daly Limited P N Pipe replacement
GB2137720B (en) * 1983-03-31 1987-01-28 Daly Limited P N Pipe replacement
GB2137719B (en) * 1983-03-31 1987-01-28 Daly Limited P N Pipe replacement

Also Published As

Publication number Publication date
GB2152622A (en) 1985-08-07
GB8430758D0 (en) 1985-01-16

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee