Conduit traversing vehicle

A vehicle (1) for travelling along a conduit (2) having fluid flowing therein is described. The vehicle comprises a forward set of resilient bristles (12) and a rear set of bristles (18) which are adapted to move towards and away from the forward bristles (12). The forward bristles (12) engage the s...

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Bibliographic Details
Main Authors STUTCHBURY NEIL WILLIAM, APPLETON ERNEST
Format Patent
LanguageEnglish
Published 03.08.2004
Edition7
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
MOTOR VEHICLES
PERFORMING OPERATIONS
PIPES
RAILWAY SYSTEMS
RAILWAYS
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
TRAILERS
TRANSPORTING
WEAPONS
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Summary:A vehicle (1) for travelling along a conduit (2) having fluid flowing therein is described. The vehicle comprises a forward set of resilient bristles (12) and a rear set of bristles (18) which are adapted to move towards and away from the forward bristles (12). The forward bristles (12) engage the surface of the conduit (2) and apply a greater gripping force when they are moving towards the mar bristles (18) than when they are moving away from the rear bristles (18). Similarly, the rear bristles (18) apply a larger gripping force to the surface of the conduit (2) when they are moving away from the forward bristles (12) than when they are moving towards the forward bristles (12). A drive means (4) has a shaft (9) which is rotated by fluid flow, and a reverse traverse screw (14) is connected to the shaft such that rotation of the shaft (9) causes a thread follower (16) to move along the reverse traverse screw (14) first in one direction, and then the other, to move the forward (12) and rear (18) bristles towards and then away from each other. This causes the vehicle (1) to move along the conduit (2).
Bibliography:Application Number: US20020070563