Caterpillar Inc.

David S Suckow

Jerry F Smith

Donald E Keith

A fluid level measuring gauge for accurately measuring and reading a fluid level in a fluid level access chamber having one or more bends and interior chamfered shoulder zones, the fluid level measuring gauge including an elongate blade having an upper and lower portion where the upper and lower portions of the fluid level measuring gauge are in a constant twist formation for creating a nonwiping motion during insertion of the fluid level measuring gauge into and out of a fluid gauge access chamber, a flat shaped measuring region, including an upper port and a lower port in an up and down direction on the measuring region, a handle attached to the blade for controlled insertion and removal of the fluid level measuring gauge, and a spherical chamfer advancing guide affixed to the leading end of the elongate blade, opposite the handle.

Fluid level measuring gauge

A differential lock control system for controlling the locking of the various differential assemblies associated with a particular work machine wherein such system includes a first switch positionable to select any one or more of the differential assemblies for operation in their locked condition, a second switch actuatable to control the locking of the differential assemblies selected by the first switch, a ground speed sensor for determining the ground speed of the work machine, an optional steering pressure sensor for determining the steering effort required to turn the wheels associated with the front axle, and an electronic controller coupled to the first and second switches and to the respective sensors for receiving signals therefrom, the controller outputting a signal to actuate the locking mechanism of the differential assemblies selected by the position of the first switch when the controller receives a signal indicative of the second switch being actuated, and a signal indicative of the ground speed being below a predetermined ground speed. In addition, if the locking mechanism of the front axle differential has been selected for actuation by the first switch, the controller will only lock-up the front axle differential when it receives an additional signal indicative of the steering effort being below a predetermined amount.

Growing community of inventors

East Peoria, IL, United States of America

David S Suckow