Trench drain assembly

Details Trench drain assembly Trench drain assembly

2011-06-28

2011-06-28

Singh, Sunil (Department: 3672)

Road structure, process, or apparatus

Drain or gutter

Street or curb inlet for surface drainage

C404S002000, C405S118000

Reexamination Certificate

active

07967523

ABSTRACT:
A trench drain assembly including a flow channel and a frame for supporting the channel in a trench. Sidewalls of the frame have a gradually increasing height between ends of the frame so that the frame creates a gradual slope for the assembly to properly drain. In addition, sidewalls of the frame include spaced lugs that extend outwardly and sidewalls of the channel include spaced lugs that extend inwardly to create an interference fit with the lugs of the frame so that the channel can be easily attached to the frame. During assembly, the frame is lowered onto the channel so that the lugs of the frame are received between the lugs of the channels and the frame is then slid with respect to the channel until the lugs of the frame are positioned below the lugs of the channel to secure the frame to the channel.

REFERENCES:
patent: RE26366 (1968-04-01), Flegel
patent: 4844655 (1989-07-01), Aleshire
patent: 7264418 (2007-09-01), Houck et al.
patent: 7637694 (2009-12-01), Musser
patent: 2007/0293008 (2007-12-01), Hodgekins et al.
patent: 9835 (1980-04-01), None

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