Advancing material of indeterminate length – By orbitally traveling material-engaging surface – On endless belt or chain
Patent
1980-03-24
1982-06-29
McCarthy, Edward J.
Advancing material of indeterminate length
By orbitally traveling material-engaging surface
On endless belt or chain
B65H 1734
Patent
active
043369014
ABSTRACT:
A split-type injector for flexible drill tubing includes a pressure cylinder connected to linkage which maintains an adjustable pressure of the injection dies upon the tubing passing therethrough. The individual dies on the endless chain are constructed to grip components and tubing of different diameters which passes therethrough and also by means of a relief valve in the pressure system, to widen and close up as different diameter components or tubing pass therethrough. For example if a component such as a coupling is encountered, the halves of the injector move apart to allow it to pass yet at the same time maintain a similar contact upon the coupling and also to maintain similar pressure upon the coupling. When the component has passed, the halves close up and maintain the same pressure and substantial contact area upon the tubing as before.
REFERENCES:
patent: 1898014 (1933-02-01), Krumholz
patent: 3022928 (1962-02-01), Ulmitz
patent: 3182877 (1965-05-01), Stator
patent: 3285485 (1966-11-01), Stator
Ade Stanley G.
McCarthy Edward J.
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