US 11,850,539 B2
Fuel filter device
Michael Richardson, Sandusky, OH (US)
Filed by Michael Richardson, Sandusky, OH (US)
Filed on Sep. 21, 2021, as Appl. No. 17/480,808.
Application 17/480,808 is a continuation of application No. 15/383,714, filed on Dec. 19, 2016, granted, now 11,123,666, issued on Sep. 21, 2021.
Application 15/383,714 is a continuation of application No. 13/965,583, filed on Aug. 13, 2013, granted, now 9,522,353, issued on Dec. 20, 2016.
Prior Publication US 2022/0001313 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 35/143 (2006.01); B01D 35/30 (2006.01); B01D 37/04 (2006.01); B01D 36/00 (2006.01); B01D 27/06 (2006.01); B01D 27/08 (2006.01)
CPC B01D 35/143 (2013.01) [B01D 27/06 (2013.01); B01D 27/08 (2013.01); B01D 35/306 (2013.01); B01D 36/005 (2013.01); B01D 37/04 (2013.01); B01D 37/045 (2013.01); B01D 2201/302 (2013.01); B01D 2201/52 (2013.01); B01D 2201/56 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A filter system, comprising:
a filter head configured to operably engage with a filter, and that operably receives a fluid mixture at an inlet and provide a filtered fluid at an outlet, the filter head comprising:
a water sensor that detects water in the filter, the water sensor comprising:
a touch plug that operably, electrically connects with the probe when the filter is disposed on the filter head; and
a signal detector that detects an electrical signal from the probe through the touch plug; and
a transmitter that is electrically coupled with the water sensor, the transmitter communicatively coupling with a remote computer comprising a user display;
the filter operably, selectably engaged with the filter head, the filter comprising:
a filter media that operably separates water from the mixture; and
a water collection cavity; and
a probe fixedly engaged with and disposed inside the filter, the probe extending from the water collection cavity to and in contact with the water sensor merely when the filter is engaged with the filter head;
wherein the touch plug end is slidably biased toward the filter in the filter head, and is configured to slide into the filter head when engaged with the probe to create an electrical coupling between the water collection cavity and the signal detector.