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:
Dec. 10, 2019
Filed:
Feb. 06, 2014
Tentec Limited, W Brom, Birmingham W Midlands, GB;
Michael Gethings, Wolverhampton, GB;
David Evans, Dudley, GB;
TENTEC LIMITED, Birmingham West, GB;
Abstract
A tensioner, typically hydraulic, for threaded members, the tensioner comprising: a base () and a piston () defining a pressure space () therebetween, the base () and piston () being arranged to be urged apart along an axis () upon introduction of a fluid into the pressure space (); and a thread-engaging member (), comprising a body portion () of the form of a sleeve and having a threaded interior () for engagement with a threaded member () and a piston engaging portion () carrying a protrusion; in which the piston () bears against the protrusion such that the piston () exerts a force on the protrusion when urged apart from the base () by the introduction of fluid into the pressure space (); the tensioner further comprising a displacement sensor arranged to determining the relative position of the body portion of the thread-engaging member and the base, the displacement sensor comprising a first part () carried on the base () and a second part () carried on the body portion (); typically the displacement sensor is a magnetic encoder.