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. 07, 1993
Filed:
Jul. 20, 1992
John Whiteley, Clitheroe, GB;
Alfred Wood, Royton, GB;
Leslie Powdrill, Oswaldtwistle, GB;
Stephen W Yates, Hawood, GB;
Hollingsworth U.K. Limited, Accrington, US;
Abstract
A modular cylinder comprises a plurality of, in this case 24, modules each having a tongue to engage a groove of its neighbour and each either having a camming ramp to engage a camming ramp of its neighbour, or a filler rod inserted between adjacent modules at each interface. Where the camming means are provided, (n - 1) of the modules defining an almost complete cylinder and can then be strained in a radially outward direction to provide space for the final module which is placed in position by sliding longitudinally of the gap. Where the filler rods are used, all of the n modules may be loosely assembled in a first operation and the filler rods can be inserted in a second operation to pre-stress the cylinder. First filler rods of undersized type may be installed to hold the array of a module in loosely assembled configuration, and these may then be sequentially replaced by correctly sized larger filler rods.