US 11,885,791 B2
Wireless system and method for measuring an operative condition of a machine
Bret Dwayne Worden, Lawrence Park, PA (US); Mahalakshmi Shunmugham Balasubramaniam, Bangalore (IN); Ajith Kuttannair Kumar, Lawrence Park, PA (US); Jingjun Zhang, Lawrence Park, PA (US); Jennifer Lynn Coyne, Lawrence Park, PA (US); and Sachidananda Chinagudi Jagadeesha, Bangalore (IN)
Assigned to TRANSPORTATION IP HOLDINGS, LLC, Norwalk, CT (US)
Filed by TRANSPORTATION IP HOLDINGS, LLC, Norwalk, CT (US)
Filed on Oct. 11, 2019, as Appl. No. 16/600,105.
Application 16/600,105 is a continuation of application No. 15/678,403, filed on Aug. 16, 2017, granted, now 10,488,385.
Application 15/678,403 is a continuation of application No. 14/421,245, granted, now 9,746,452, issued on Aug. 29, 2017, previously published as PCT/US2013/055983, filed on Aug. 21, 2013.
Claims priority of provisional application 61/692,230, filed on Aug. 22, 2012.
Prior Publication US 2020/0041480 A1, Feb. 6, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 33/26 (2006.01); F16N 29/00 (2006.01); G01M 13/02 (2019.01)
CPC G01N 33/26 (2013.01) [F16N 29/00 (2013.01); G01M 13/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a sensor sized to be within a reservoir of a machine having moving parts that are lubricated by a liquid in the reservoir, the sensor configured to obtain a measurement of the liquid that is representative of one or more of a quantity or a quality of the liquid in the reservoir; and
a device body operably coupled with the sensor, the device body including a processing unit and a transponder, the transponder configured to wirelessly receive an interrogation signal from a remote reader that also energizes the processing unit to generate a data signal representative of the measurement of the liquid obtained by the sensor, the interrogation signal additionally energizing the transponder to wirelessly communicate the data signal to the remote reader;
wherein the measurement is at least one of a temperature of the liquid or nearby components, a fluid conduction of the liquid, a dielectric constant of the liquid, an impedance of the liquid, or a viscosity of the liquid, and the data signal wirelessly communicated to the remote reader relates to the measurement.