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. 06, 2016
Filed:
Dec. 10, 2013
Freehand 2010 Limited, Peasmarsh, GB;
David Gale, Cambridgeshire, GB;
Adrian Cooper, Cambridgeshire, GB;
Keith Marshall, Bedfordshire, GB;
Clive Francis, Berkshire, GB;
Freehand 2010 Limited, Guildford, GB;
Abstract
A clutch mechanismfor use with a carrier of a linear drive device, where the mechanismincludes: a housing; a first gearcoupled to the housingand having gear teethconfigured to engage a threaded shaftof a linear drive device, so that rotation of the shaftcauses the housingto move along the shaftin a first mode of operation; and a first clutch arrangement associated with the first gearand configured to prevent substantial rotation of the first gearwith respect to the housingwhen a rotational force applied to the first gearis less than a threshold force and to permit rotation of the first gearwith respect to the housingwhen a rotational force applied to the first gearis greater than the threshold force. In a second mode of operation, the housingcan be manually moved along a length of the shaftby exerting a force on the housingand causing the rotational force applied to the first gearthrough the interaction of the threaded shaftand the gear teeth to exceed the first threshold.