E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
94/12
E02D 29/14 (2006.01)
Patent
CA 1202511
S P E C I F I C A T I O N "Improvements to Manhole/Access Cover and Frame Assemblies" ABSTRACT OF THE DISCLOSURE In a manhole/access cover and frame assembly the cover is supported on the frame by pairs of downwardly facing, oppositely inclined support surfaces on the cover which are engageable respectively with corresponding upwardly facing, oppositely inclined support faces on the frame, and the cover has a substantially continuous down- wardly facing ridged peripheral sealing surface which, when the cover is supported on the frame, overlies a substantially continuous upwardly facing ridged peripheral sealing surface on the frame. The engagement between the aforesaid support surfaces so locates the cover with respect to the frame that ridges on the sealing surfaces are interleaved but are held out of supporting contact with one another along substantially the whole of their length, so that the tortuous path between the ridges may be packed with grease to provide a gas and water tight seal.
419819
Robic Robic & Associes/associates
Selflevel Covers (jersey) Limited
LandOfFree
Manhole/access cover and frame assemblies does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manhole/access cover and frame assemblies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manhole/access cover and frame assemblies will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1198216