Launching and arresting a discrete object in a pipeline

Details Launching and arresting a discrete object in a pipeline Launching and arresting a discrete object in a pipeline

1978-07-19

1980-12-09

Michalsky, Gerald A.

Fluid handling

With holder for solid, flaky or pulverized material to be...

1510406A, 73 3, G01F 2500

Patent

active

042379210

ABSTRACT:
A device for arresting and/or launching a discrete body at the end of a pline in which the body forms a sliding seal and through which the body is carried by fluid flow comprises a length of pipe continuous with and opening into the pipeline, and having a closed end remote from the pipeline, the internal cross-section of said length of pipe being substantially the same as that of the pipeline; a casing forming a chamber on the exterior of the said length of pipe; an external connection for fluid flow to or from the chamber; and at least one through which the chamber and the interior of the said length of pipe communicate.
The invention is particularly applicable to the arrestment and launching of displacement members used in flowmeter provers and both functions may be provided in a single device by the provision therein of two sets of apertures, a first set arranged towards the pipeline and shaped and dimensioned to launch the displacement member when fluid flows through the device towards the pipeline and a second set of apertures arranged towards the closed end of the length of pipe and shaped and dimensioned to arrest the displacement member when fluid is present in the said length of pipe.

REFERENCES:
patent: 2755742 (1956-07-01), Vincent
patent: 3978708 (1976-09-01), Hayward
patent: 4124065 (1978-11-01), Leitner

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