System and method for measuring weights of vehicles and trailers
AssigneeProgress Mfg. Inc.
InventorsJed K. Anderson, David F. Lundgreen, Jason R. Harper
Life of this patent
Estimating the term…
Abstract
A hydraulic jack having a piston, configured to lift at least a portion of a vehicle or trailer, and a housing, where the housing includes a high pressure fluid chamber configured to receive at least a portion of the piston, and where increasing fluid pressure within the high pressure chamber moves the piston further out of the housing. The hydraulic jack also includes 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.
Claims32
A force measurement device comprising:
- a jack having:
- a piston, configured to engage an object to be lifted or pushed;
- a housing, wherein the housing includes a high pressure chamber configured to receive at least a portion of the piston, wherein altering a pressure within the high pressure chamber can actuate the piston to move further into or out of the housing;
- a release valve in fluid communication with the high pressure chamber and configured to release pressure within the high pressure chamber;
- and
- a force gauge attached to the housing and configured to measure a force applied to the piston by the object to be lifted or pushed;
- wherein the force gauge and the release valve utilize the same fluid connections to the high pressure chamber.
A hydraulic jack comprising:
- 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;
- a release valve in fluid communication with the high pressure fluid chamber and configured to release pressure within the high pressure fluid chamber;
- 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;
- wherein the weight gauge and the release valve utilize the same fluid communication with the high pressure fluid chamber.
A hydraulic jack comprising:
- 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 the fluid pressure within the high pressure chamber moves the piston further out of the housing;
- a release valve in fluid communication with the high pressure fluid chamber and configured to release pressure within the high pressure fluid chamber;
- and
- a weight gauge attached to the housing and in fluid communication with both the release valve and 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;
- wherein the weight gauge is removable from the release valve.
Dependencies are inferred from the claim text.