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. 08, 2020
Filed:
Oct. 21, 2014
Wheelright Limited, Begbroke, GB;
Paul Michael Taylor, Oxfordshire, GB;
William James Bradley, Cambridgeshire, GB;
Willem Paul Beeker, Cambridgeshire, GB;
Alexander Paul Codd, Oxfordshire, GB;
Wheelright Limited, Begbroke, GB;
Abstract
A system for measuring the depth of tread of a tyre () on a wheel () of a vehicle () whilst the wheel is rotating and moving along the ground. A camera () captures images whilst the tyre rotates for at least the major part of its circumference. Light sources (Lto L) are spaced longitudinally and are directed at an acute angle to the path of the tyre, to illuminate the tyre whilst images are captured. The images are analysed by data processing apparatus () and the tread depth is determined from the length of shadows () in the gaps () between tread blocks (). The light sources are activated and de-activated sequentially in accordance with signals from longitudinally spaced sensors (Sto S) which detect the presence of the tyre, so that when an image is captured of a portion of the tyre tread, only one light source is activated to illuminate that portion of the tyre tread.