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US 6,644,887 B2Granted
Device for connecting a towed pipe to a towing apparatus
AssigneeTracto-Technik Paul Schmidt Spezialmaschinen
InventorAlfons Hesse
Life of this patent
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Abstract
A device for connecting a towed pipe to a towing apparatus, for example a percussion boring machine or a towing head, comprises an adapter sleeve adapted to the towing apparatus and a towed pipe of which the connecting end is, for example, provided with longitudinal slits and accordingly can be changed in diameter, and locking means by which the adapter sleeve and the towed pipe can be connected together in a sufficiently tension-resistant manner.
Claims8
Device for connecting a towed pipe to a towing apparatus, comprising:
- an adapter sleeve;
- a towed pipe comprising a connecting end, wherein the connecting end defines grooves therein, and the adapter sleeve defines grooves therein opposed to the grooves in the connecting end;
- locking bars disposed in the grooves in the connecting end, each of the locking bars comprising an insertion bevel
- wherein:
- the locking bars comprise a pulling eye;
- the supporting sleeve comprises a collar and the adapter sleeve comprises a complementary internal shoulder;
- the supporting sleeve engages between a front end of the towed pipe and the complementary internal shoulder.
4 more elements
Device for connecting a towed pipe to a towing apparatus, comprising:
- an adapter sleeve;
- a towed pipe comprising a connecting end, wherein the connecting end defines grooves therein, and the adapter sleeve defines grooves therein opposed to the grooves in the connecting end;
- and
- locking bars disposed in the grooves in the connecting end, each of the locking bars comprising an insertion bevel;
- wherein the connecting end of the towed pipe defines longitudinal slits therein.
2 more elements
Dependencies are inferred from the claim text.