Patents Assigned to South-Tek Systems, LLC
  • Patent number: 9999792
    Abstract: A dual air vent allows air or gas to be vented from a wet pipe fire protection sprinkler system, but inhibits water from spilling out. A conventional first air vent valve is operative to vent air or gas as a pipe is filled with water, but not vent the water. However, it may discharge a small amount of water when the pipe fills and substantially all air or gas has been vented. The output of the first air vent valve is not released into the protected premises, but rather is routed to a reservoir having a second air vent. Air or gas is vented through the second air vent, but any water discharged by the first air vent valve is retained in the reservoir. The reservoir is connected to the pipe by a one-way valve which allows air flow in either direction, and allows water flow from the reservoir to the pipe, but blocks water flow from the pipe to the reservoir. When the pipe is again drained, water retained in the reservoir is allowed to flow into the pipe, where it is also drained.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 19, 2018
    Assignee: South-Tek Systems, LLC
    Inventors: Scott Christian Bodemann, Timothy S. Bodemann
  • Patent number: 9700746
    Abstract: A gas purging valve is operative to be connected to piping in a Fire Protection System (FPS) and to bleed gas at a predetermined rate. The valve includes an inlet in gas flow relationship with the FPS piping and a central passage in gas flow relationship with the inlet. The valve also includes a calibrated orifice removeably disposed in the central passage, in gas flow relationship with the passage and operative to allow a maximum predetermined gas flow rate therethrough. The valve further includes an outlet in gas flow relationship with the calibrated orifice. A ball is disposed upstream of the central passage. The ball is operative to allow gas flow through the gas purging valve but operative to impede the flow of water through the gas purging valve.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: July 11, 2017
    Assignee: South-Tek Systems, LLC
    Inventor: Timothy S. Bodemann
  • Patent number: 9616262
    Abstract: A corrosion prevention treatment of wet Fire Protection System (FPS) includes purging the pipes of O2 with an inert gas such as N2, followed by filling the pipes with deoxygenated water generated “on the fly” as the water enters a building, using one or more Gas Transfer Membrane (GTM) devices and N2 gas. The GTM device eliminates the need for a water reuse tank and its associated pipes, valves, recirculation regimen, and the like. Water is pumped directly from the building water supply to a GTM device, where it is deoxygenated to very low O2 levels—such as below 300 ppb (parts per billion). The deoxygenated water then flows directly into the O2-purged pipes of the FPS. When the FPS is drained for testing or repair, the deoxygenated water may be discharged, and replaced, upon return to service of the FPS, with water freshly deoxygenated from the building supply as the FPS piping is filled.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: April 11, 2017
    Assignee: South-Tek Systems, LLC
    Inventor: Timothy S. Bodemann
  • Patent number: 9242131
    Abstract: A gas purging valve is operative to be connected to piping in a Fire Protection System (FPS) and to bleed gas at a predetermined rate. The valve includes an inlet in gas flow relationship with the FPS piping and a central passage in gas flow relationship with the inlet. The valve also includes a calibrated orifice removeably disposed in the central passage, in gas flow relationship with the passage and operative to allow a maximum predetermined gas flow rate therethrough. The valve further includes an outlet in gas flow relationship with the calibrated orifice. A ball is disposed upstream of the central passage. The ball is operative to allow gas flow through the gas purging valve but operative to impede the flow of water through the gas purging valve.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: January 26, 2016
    Assignee: South-Tek Systems, LLC
    Inventor: Timothy S. Bodemann
  • Publication number: 20140246103
    Abstract: A gas purging valve is operative to be connected to piping in a Fire Protection System (FPS) and to bleed gas at a predetermined rate. The valve includes an inlet in gas flow relationship with the FPS piping and a central passage in gas flow relationship with the inlet. The valve also includes a calibrated orifice removeably disposed in the central passage, in gas flow relationship with the passage and operative to allow a maximum predetermined gas flow rate therethrough. The valve further includes an outlet in gas flow relationship with the calibrated orifice. A ball is disposed upstream of the central passage. The ball is operative to allow gas flow through the gas purging valve but operative to impede the flow of water through the gas purging valve.
    Type: Application
    Filed: May 14, 2014
    Publication date: September 4, 2014
    Applicant: South-Tek Systems, LLC
    Inventor: Timothy S. Bodemann
  • Publication number: 20140048290
    Abstract: To prevent corrosion, the pipes of a wet fire protection system (FPS) are purged of atmospheric oxygen by displacing in the pipes with an inert gas, such as nitrogen, prior to filling the pipes with water. After oxygen is purged from the pipes, they are filled with deoxygenated water which contains an O2 concentration of 500 ppb or less. The lack of dissolved oxygen in the deoxygenated water prevents O2 molecules from outgassing from the water into spaces within the pipe containing N2 gas. The dearth of oxygen in the system provides long-term corrosion inhibition. Oxygen may be purged from water by exposing the water to an inert gas (such as N2) having a sufficiently low O2 concentration.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 20, 2014
    Applicant: South-Tek Systems, LLC
    Inventor: Timothy S. Bodemann