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2024
|
G/S
|
Manhole rings; manhole ring covers; catch basin frames; catch basin grates; storm drain gutter in... |
|
|
G/S
|
Metal locking mechanisms for manhole covers for access openings in streets and highways. |
|
|
G/S
|
Metal manhole covers |
|
2023
|
G/S
|
Metal casting |
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2022
|
Invention
|
Manhole cover assembly.
A manhole cover assembly includes a manhole cover supportable by a seat ... |
|
|
Invention
|
Manhole cover assembly. A manhole cover assembly includes a manhole cover supportable by a seat o... |
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2020
|
Invention
|
Hybrid manhole cover. A manhole cover includes a base with at least one opening therein to ... |
|
|
Invention
|
Hybrid manhole cover. A manhole cover includes a base with at least one opening therein to define... |
|
|
Invention
|
Retainer for closure device. Disclosed is retainer for a nut. The retainer is positioned within t... |
|
2019
|
Invention
|
Floating manhole cover assembly. A manhole cover assembly comprises a base frame, the base frame ... |
|
2018
|
Invention
|
Manhole cover assembly. An example manhole cover assembly includes a manhole cover and a latch as... |
|
2017
|
Invention
|
Manhole cover assembly. A manhole cover assembly includes a manhole cover supportable by a manhol... |
|
|
Invention
|
Cavitation nozzle assembly for sand reclamation unit.
A nozzle assembly for generating cavitatio... |
|
|
Invention
|
Floating manhole cover assembly. A manhole cover assembly comprises a base frame, the base ... |
|
2016
|
Invention
|
Manhole cover assembly. A manhole cover assembly includes a manhole cover and a latch assembly. T... |
|
2015
|
Invention
|
Controlled pressure release manhole cover assembly. A manhole cover assembly includes a manhole c... |
|
|
Invention
|
Pressure responsive locking latch arrangement for manhole covers. A manhole cover assembly is ada... |
|
2014
|
G/S
|
Metal castings, namely, frames and covers for manholes, steps for sanitary sewer manholes, and ri... |
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2012
|
Invention
|
Integrated frame and curb box |
|
|
Invention
|
Frame and curb box |
|
2011
|
Invention
|
Grating systems incorporating decorative articles.
A grating system includes at least one pocket... |
|
2010
|
Invention
|
Grate |
|
2009
|
Invention
|
Detectable warning plate |
|
|
Invention
|
Manhole cover stop mechanism. A stop mechanism advantageously combined with a manhole cover inclu... |
|
|
Invention
|
Manhole cover stop mechanism. A stop mechanism advantageously combined with a manhole cover... |
|
|
Invention
|
Method of controllably venting gases generated by explosions in a manhole space. A method for con... |
|
2008
|
Invention
|
Cam-lift for a manhole cover. A manhole cover assembly including a frame defining an opening and ... |
|
|
Invention
|
Trench grate assembly with debris chute. A frame for retaining a grate over a trench for directin... |
|
2007
|
Invention
|
Heavy duty trench frame and grate assembly. A frame for retaining a grate over a trench for direc... |
|
|
Invention
|
Fertilization grate and trough system. Disclosed is a fertilization system that finds particular ... |
|
|
Invention
|
Bollard assembly. A telescoping bollard assembly is provided. The bollard assembly includes a thr... |
|
|
Invention
|
Manhole cover security lock with controlled pressure release. A controllably releasable security ... |
|
2006
|
G/S
|
Metal locking mechanisms for manhole covers for access openings in streets and highways |
|
|
Invention
|
Socket hinged construction casting assembly. A manhole or hatch cover assembly includes a frame d... |
|
|
Invention
|
Socket hinged construction casting assembly. A joint suitable for construction castings having a ... |
|
2005
|
Invention
|
Telescoping bollard with screw drive. The present invention includes a bollard assembly 1 contain... |
|
2004
|
Invention
|
Construction castings with ball and socket connectors. A joint suitable for construction castings... |
|
2003
|
G/S
|
Metal locks for metal storm drain gratings, manhole covers and the like. |
|
|
Invention
|
Access hatch cover assembly with lift-assist assembly and method therefor. A hatch cover with spr... |
|
|
G/S
|
manhole rings; manhole ring covers; catch basin frames; catch basin grates; storm drain gutter in... |
|
2002
|
Invention
|
Locking device and method for catch basin and manhole covers, and the like. A locking device and ... |
|
1996
|
G/S
|
gray iron and ductile iron castings |
|
1994
|
Invention
|
Method and apparatus for forming a lined trench. A reusable support structure for installing a tr... |
|
1977
|
Invention
|
Sealing manhole cover for use on existing unsealed sanitary sewer manhole cover frames. A manhole... |
