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:
Jun. 27, 2023
Filed:
Dec. 10, 2021
National Oilwell Varco Uk Limited, Gloucestershire, GB;
Richard Matthew Westgarth, Garden Farm, GB;
Graham Knox, Birtley, GB;
Jonathan Tweddle, Lanchester, GB;
NATIONAL OILWELL VARCO UK LIMITED, Gloucestershire, GB;
Abstract
A connection assembly and a method comprises first and second connector portions having a preload mechanism comprising a plurality of bores and threaded fixings circumferentially spaced around the axis, wherein the preload mechanism is arranged to apply an axial load between shoulders on the first and second connector portions when torque is applied to the threaded fixings. An annular sealing member is compressed between the first and second portions, and the axial load applied between the first and second shoulders by the preload mechanism exceeds a peak hydrodynamic load urging the first and second connector portions in a direction along the axis. The axial force applied by the preload mechanism advantageously reduces the fatigue damage experienced by the connection, for example, by cyclic pressure changes within the connector portions typically caused by pumps operating at high pressures.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile