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2024
|
Invention
|
Expansion band assembly. The present disclosure provides an expansion band assembly for compressi... |
|
2023
|
Invention
|
Lateral connector for underground pipes.
A pipe junction includes a corrugated pipe including a ... |
|
|
G/S
|
external joint couplers for pipes and concrete structures comprised of non-metal backings, metal ... |
|
2020
|
Invention
|
Pipe joint seal for polymer piping. A seal assembly is configured for use at PVCO pipe junctions.... |
|
|
G/S
|
Pipe gaskets; pipe gaskets for use in sealing plastic pipes |
|
2019
|
Invention
|
Rail tie pad.
A rail tie pad for use with a cast rail tie. The rail tie pad may be flexible, pol... |
|
|
Invention
|
Vibration dampening railway tie boot.
A vibration dampening boot for railway tie blocks and a me... |
|
|
Invention
|
Manhole base assembly with internal liner and method of manufacturing same. A manhole base assemb... |
|
2018
|
G/S
|
Flexible connectors, namely, rings made primarily of rubber for use as pipe connection seals to c... |
|
|
Invention
|
Hole former with gasket locating features for cast manhole structures. A hole former for use in c... |
|
2017
|
Invention
|
Expandable sealing mechanism. A sealing assembly has an expansion band having an arcuate band por... |
|
2016
|
G/S
|
Gaskets for pipes; gasketing materials for forming leak-resistant joints in pipes and conduits an... |
|
2015
|
Invention
|
Expandable sealing mechanism |
|
|
G/S
|
Gaskets, namely, gaskets for pipes, gaskets for plastic pipes, gaskets for metal pipes, gaskets f... |
|
|
Invention
|
Corrugated pipe gasket. A gasket is adapted for sealing a joint between bell and spigot ends of c... |
|
2014
|
Invention
|
Roll-up door seal.
A roll-up door seal arrangement includes side seals, an upper seal and a lowe... |
|
|
Invention
|
Trailer door seal. A sealing system seals the perimeter of insulated hinged double doors. The sea... |
|
2013
|
G/S
|
Non-metal flexible sleeve connectors for manholes, wet wells, lift stations, and other storm wate... |
|
|
Invention
|
Seal with primary and secondary sealing lobes for use in roll-up door applications. A roll-up doo... |
|
2011
|
Invention
|
Trailer door seal. A one-piece seal is used between the rear doors of a semi-trailer truck and th... |
|
|
Invention
|
Expansion ring assembly. An expansion ring assembly seals a gasket with respect to an annular wal... |
|
2008
|
Invention
|
Internal pipe seal. A pipe sealing assembly for sealing a connection between a pair of pipes. The... |
|
2006
|
Invention
|
Gasket and mandrel assembly for pipe joints. A gasket and mandrel assembly, including a gasket ha... |
|
2005
|
Invention
|
Expansion ring assembly with removable drive mechanism. An expansion ring assembly for sealing a ... |
|
2004
|
Invention
|
Expansion ring assembly. An expansion ring assembly for sealing a gasket with respect to an annul... |
|
2002
|
Invention
|
Quick change drill bit. A quick-change core drill includes an adapter and a generally tubular dri... |
|
2001
|
Invention
|
Flexible waterstop ring. A waterstop ring provides a flexible joint connection between a pipe and... |
|
|
Invention
|
Flexible seal member for non-metallic conduit to concrete manhole junction. A sealing member for ... |
|
2000
|
G/S
|
NONMETAL GASKETS FOR USE WITH TANKS AND MANHOLES |
|
1998
|
Invention
|
Magnetically attached hole form. An attachment mechanism for a hole form that is used to secure t... |
|
1997
|
Invention
|
Interlocking end members for an expandable compression ring. Interlocking end members for expanda... |
|
1996
|
Invention
|
Pipe to manhole seal. A sealing assembly and method in which an elastomeric sealing sleeve is str... |
|
1993
|
G/S
|
rail mounted concrete coring machine and machine operated coring bits |
|
1987
|
G/S
|
Gasketing material for forming leakproof joints in pipes and conduits. |
|
1986
|
G/S
|
GASKETING MATERIAL FOR FORMING LEAKPROOF JOINTS BETWEEN A CONCRETE MANHOLE LINER AND A PIPE |
|
1956
|
G/S
|
GASKETS FOR CONCRETE PIPE |
