The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1976
Filed:
Jun. 10, 1975
Alan Thomas Hayward, Glasgow, SC;
Abstract
An arrester for a discrete body being transported through a closely fitting ipeline by liquid flow, consisting of a final length of pipe with enlarged bore which gradually tapers to a minimum cross section at its closeable end. When the end is closed, a discrete body carried axially into this enlarged bore is decelerated by the action of liquid in the end bore being forced back past the body. Suitable shaping of the taper governs the rate of deceleration. The invention is particularly applicable to the arrestment of displacement members used in flowmeter provers and provision has also been made for launching an arrested displacement member back into the prover pipe with an acceleration rate governed by a further region of enlarged bore but with reverse taper.