5 patents
Utility
Manhole rehabilitation system
16 May 23
A manhole rehabilitation system where in one example an existing cross-pipe is exposed and a manhole base and riser are cast around and above the existing cross pipe to form a manhole.
Jed Christopher Friesen
Filed: 2 Apr 21
Utility
Aqueous firefighting foam wastewater management system
18 Oct 22
A wastewater management system has a container with the first chamber and a second chamber therein, a diverter valve having an inlet and a first outlet, a holding tank interconnected to the first outlet of the diverter valve, and a controller connected to the diverter valve so as to move the diverter valve to the first position.
Christopher Nolan Eberly
Filed: 24 May 21
Utility
Seismic Pipe Joint
11 Feb 21
A pipe joint has a first pipe having an end portion and a first pipe wall thickness, and a second pipe having an end portion.
Brent Keil, Spyridon Karamanos
Filed: 1 May 20
Utility
Pipe joint
2 Nov 20
A pipe joint has male and female couplers with interfitting features that join pipe sections together when the male coupler is positioned within the female coupler.
Brent Keil
Filed: 7 Feb 18
Utility
Pipe ram joint
13 Apr 20
A pipe ram joint includes first and second couplers that can comprise rings for mounting to the ends of respective pipes or formed in the ends of these pipes.
Brent Keil, Frederick Gobler
Filed: 7 May 17
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