US 12,326,355 B2
System and method for measuring weights of vehicles and trailers
Jed K. Anderson, Lindon, UT (US); David F. Lundgreen, Spanish Fork, UT (US); and Jason R. Harper, Spanish Fork, UT (US)
Assigned to Progress Mfg. LLC, Provo, UT (US)
Filed by Progress Mfg. LLC, Provo, UT (US)
Filed on Jul. 7, 2023, as Appl. No. 18/349,079.
Application 18/349,079 is a continuation of application No. 17/867,603, filed on Jul. 18, 2022.
Prior Publication US 2024/0019293 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01G 19/02 (2006.01); B66F 3/25 (2006.01); G01G 19/52 (2006.01)
CPC G01G 19/02 (2013.01) [B66F 3/25 (2013.01); G01G 19/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of weighing a vehicle or trailer, comprising:
providing a hydraulic jack, wherein the jack includes:
a piston, configured to lift at least a portion of a vehicle or trailer;
a housing, wherein the housing includes a high pressure fluid chamber configured to receive at least a portion of the piston, wherein increasing fluid pressure within the high pressure chamber moves the piston further out of the housing; and
a weight gauge attached to the housing and in fluid communication with the high pressure fluid chamber, wherein the weight gauge is configured and calibrated to measure and display the weight of the vehicle or trailer being lifted by the piston;
positioning the hydraulic jack such that the piston is underneath at least a portion of a vehicle or trailer;
actuating the hydraulic jack such that the fluid pressure in the high pressure fluid chamber increases and moves the piston further out of the housing, lifting the vehicle or trailer; and
measuring the weight of the vehicle or trailer using the weight gauge;
wherein the hydraulic jack includes a release valve in fluid communication with the high pressure fluid chamber and configured to release pressure within the high pressure fluid chamber, and wherein the weight gauge and the release valve utilize the same fluid communication with the high pressure fluid chamber.