US 11,874,154 B2
Fuel level sensor with spring-loaded wiper contacts
José David Mondragón Avelar, Tepotzotlan (MX); Sebastian Rosas Contreras, Mexico City (MX); Miguel Angel Benitez Torreblanca, El Campanario (MX); and Tanya Stephany Soriano Canchola, Tlalnepantla (MX)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Oct. 18, 2021, as Appl. No. 17/451,297.
Prior Publication US 2023/0121572 A1, Apr. 20, 2023
Int. Cl. G01F 23/36 (2006.01); B60K 15/03 (2006.01)
CPC G01F 23/363 (2013.01) [B60K 15/03 (2013.01); B60K 2015/03217 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for a fuel delivery system, comprising:
at a fuel level sensor assembly, generating a signal indicative of electrical resistance in a wiper assembly while at least two spring-loaded conductive track contacts of the wiper assembly are each in contact with a conductive ink track, where the wiper assembly includes:
at least two cylindrical springs positioned between the at least two conductive track contacts and a conductive internal plate, each spring urging a corresponding conductive track contact into contact with a respective conductive ink track; and
a wiper housing including at least two openings formed as hollow cylinders that each at least partially enclosing the conductive internal plate and a corresponding cylindrical spring.