ACO SEVERIN AHLMANN GMBH & CO. KG Patent applications |
Patent application number | Title | Published |
20140144086 | MANHOLE COVER - A manhole cover is described with a supporting structure device comprising force distribution ribs for supporting a top surface of the manhole cover which can be driven over, and a hollow force distribution cylinder arranged substantially centrally, in particular a circular force distribution cylinder, for supporting the force distribution ribs, characterised by a force distribution plate to relieve the load on the force distribution cylinder, wherein the force distribution plate at least substantially completely covers an underside of the force distribution cylinder in relation to the top surface, and wherein the force distribution ribs transform smoothly into the force distribution plate. | 05-29-2014 |
20130161246 | COVERING CONSISTING OF A PLURALITY OF GRATINGS INSERTED ONE INTO ANOTHER - Covers for drains, manholes or similar constructions are known which comprise a first grate ( | 06-27-2013 |
20090038235 | GRATING WITH A PLATE DETACHABLY MOUNTED IN A FRAME FOR COVERING A DRAINAGE CHANNEL - Covers for mounting onto upper edges of drainage channels or similar surface water drainage arrangements are well known, which are mounted onto the drainage channel by means of fixing devices. To simplify construction, storage and assembly it is proposed that the cover include a frame to which fixing means are attached and which includes devices for the retention and fixing of surface elements. The surface elements may be formed in various ways. | 02-12-2009 |