US 12,031,934 B2
Fog sensor for tailpipes
William C. Batten, Asheboro, NC (US); Sianna Haws, Asheboro, NC (US); Fred Lehman, Asheboro, NC (US); Lee Atkinson, Asheboro, NC (US); and Patrick Sturm, Asheboro, NC (US)
Assigned to Thermaco Incorporated, Asheboro, NC (US)
Appl. No. 17/623,336
Filed by Thermaco, Inc., Asheboro, NC (US)
PCT Filed Jun. 29, 2020, PCT No. PCT/US2020/040045
§ 371(c)(1), (2) Date Dec. 28, 2021,
PCT Pub. No. WO2020/264465, PCT Pub. Date Dec. 30, 2020.
Claims priority of provisional application 62/868,410, filed on Jun. 28, 2019.
Claims priority of provisional application 62/942,584, filed on Dec. 2, 2019.
Prior Publication US 2022/0357297 A1, Nov. 10, 2022
Int. Cl. G01N 27/22 (2006.01); E03F 5/16 (2006.01)
CPC G01N 27/228 (2013.01) [E03F 5/16 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus for sensing the proportion of FOG flowing with effluent from a sink to a p-trap comprising
a pipe portion connectable for use as a tailpipe for a sink,
a first electrode within the pipe portion,
a second electrode outside the pipe portion, and
conductors connecting the first and second electrodes to a capacitance sensor,
whereby changes in capacitance between the electrodes caused by changes in proportions of FOG content in effluent from the sink can be detected.