|
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 p... |
|
|
Invention
|
Lateral connector for underground pipes.
A pipe junction includes a corrugated pipe including a ... |
|
|
P/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.... |
|
|
P/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
|
P/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
|
P/S
|
Gaskets for pipes; gasketing materials for forming leak-resistant joints in pipes and conduits an... |
|
2015
|
Invention
|
Expandable sealing mechanism |
|
|
P/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... |
|
|
P/S
|
Pipe gaskets; Pipe joint sealant |
|
2013
|
P/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... |
|
2010
|
Invention
|
Collapsible expansion mechanism for effecting a seal. An expansion mechanism of the type that may... |
|
2009
|
Invention
|
Internal pipe seal. A pipe sealing assembly, and a method of installing the pipe sealing assembly... |
|
2008
|
Invention
|
Grout and lifting tube. A grout and lifting tube for casting within a concrete segment. The tube ... |
|
|
Invention
|
Internal pipe seal. A pipe sealing assembly for sealing a connection between a pair of pipes. The... |
|
2007
|
Invention
|
Gasket and mandrel assembly for pipe joints. A gasket and mandrel assembly, including a gasket ha... |
|
2006
|
Invention
|
Seal assembly for pipe-to-structure connections. A seal assembly for effecting a fluid tight seal... |
|
2005
|
Invention
|
Pipe joint gasket. A gasket which may be cast in place within a concrete structure, such as a man... |
|
|
Invention
|
Expansion ring assembly with removable drive mechanism. An expansion ring assembly for sealing a ... |
|
|
Invention
|
Method of forming and maintaining a concrete structure. A method of forming and maintaining a con... |
|
|
Invention
|
Expansion ring assembly. An expansion ring assembly for sealing a gasket with respect to an annul... |
|
2004
|
Invention
|
Pipe joint gasket with closed end face. A pipe joint gasket with a closed end face. An annular an... |
|
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... |
|
2000
|
P/S
|
NONMETAL GASKETS FOR USE WITH TANKS AND MANHOLES |
|
1993
|
P/S
|
rail mounted concrete coring machine and machine operated coring bits |
|
1987
|
P/S
|
Gasketing material for forming leakproof joints in pipes and conduits. |
|
1986
|
P/S
|
GASKETING MATERIAL FOR FORMING LEAKPROOF JOINTS BETWEEN A CONCRETE MANHOLE LINER AND A PIPE |
|
1956
|
P/S
|
GASKETS FOR CONCRETE PIPE |
