Road structure – process – or apparatus – Drain or gutter
Reexamination Certificate
2006-10-17
2006-10-17
Hartmann, Gary S. (Department: 3671)
Road structure, process, or apparatus
Drain or gutter
C210S164000, C052S653100
Reexamination Certificate
active
07121759
ABSTRACT:
A grating system includes a first welded subassembly and a second non-welded subassembly joined to one another. The first subassembly includes spaced elongated bearing bars and spaced elongated cross bars extending transversely to the bearing bars. The second subassembly includes spaced elongated filler bars and spaced elongated cross bars extending transversely to the filler bars. The filler bars extend in the same direction as the bearing bars and are disposed in sets between adjacent bearing bars. The bearing bars include spaced notches in which are received the first subassembly cross bars and the second subassembly cross bars, which are aligned above the first subassembly cross bars. The subassemblies have respective upper surfaces which are flush with one another. The first subassembly is configured to support vehicle traffic and the second subassembly is configured to support pedestrian traffic.
REFERENCES:
patent: 1214928 (1917-02-01), Lachman
patent: 2509732 (1950-05-01), Ernestus
patent: 2645985 (1953-07-01), Beebe et al.
patent: 2834267 (1958-05-01), Beebe
patent: 2952905 (1960-09-01), Lorig
patent: 3881832 (1975-05-01), Maguire
patent: 4046482 (1977-09-01), Paasch
patent: 4409770 (1983-10-01), Kawaguchi et al.
patent: 4661245 (1987-04-01), Rutherford et al.
patent: 4761930 (1988-08-01), Tepera
patent: 4897299 (1990-01-01), Kawachi et al.
patent: 5463786 (1995-11-01), Mangone et al.
patent: 5733445 (1998-03-01), Fanelli
patent: 5864910 (1999-02-01), Mangone
patent: 6706172 (2004-03-01), Strawser, Sr.
patent: 6908549 (2005-06-01), Middleton et al.
Apperson Kenneth P.
Bartley John C.
Mullane Joseph S.
Snyder Thomas J.
Woodson Darryle D.
Hartmann Gary S.
Ohio Gratings, Inc.
Sand & Sebolt
LandOfFree
Grating system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Grating system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grating system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3701579