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. 01, 2009
Filed:
Nov. 30, 2004
James Nicholas Cooper, Huddersfield, GB;
James Nicholas Cooper, Huddersfield, GB;
Civic Environmental Systems Limited, Sheffield, GB;
Abstract
A drive assembly, particularly for driving arms around a compartment in a waste material digester, comprises a rotatable hub having an inner drive plate and a ratchet plate secured thereto for rotation therewith. Positionally opposed, parallel piston and cylinder drive reciprocatably drive an outer drive plate, drive arms pivotally carried on the outer drive plate engaging with drive pins on the inner drive plate to drive the hub in one direction. Movement of the hub in the opposite direction is prevented by latches engaging with respective shoulders of the ratchet plate when the outer drive plate moves in said opposite direction.