Monroe Auto Equipment Company

Robert W Hegel

Burke A West

George A Paul

Michael R Bethell

Robert H Verb

Charles L Branham

Allan D Utter

An oil filter is disclosed as having a filter enclosure provided with oil inlet and outlet ports adapted for communication with the oil circulating system of an associated oil lubricated engine. Disposed within the enclosure is a filter element fabricated of any suitable filtering media. In addition to the filter element, a body of an oil soluble, relatively solid polymer having oil additives compounded therein is disposed within the enclosure. The polymer body is located within the enclosure so as to be in an area where minimum oil flow occurs, i.e. in a relatively non-turbulent oil flow area, which results in the polymer dissolving at a relatively uniform or linear rate so as to prevent undesirable concentrations of the additives during the effective service life of the filter. If desired, suitable baffle means may be interposed between the area of primary oil flow within the filter and the oil soluble polymer, whereby to provide for the controlled contact of the flow of turbulent oil within the filter with the polymer body and thereby assure the desired linear or uniform rate of polymer dissolution.

Masking elements for dissolving oil improving body in an oil filter

A vehicle leveling system comprising at least one leveling strut having a pressurizable chamber and a height sensing and controlling mechanism located directly on the strut, the height sensing and controlling mechanism being operable to control the internal pressure within the chamber without requiring any mechanical connection or engagement of the component parts thereof which are associated with the sprung and unsprung portions of the vehicle. In one embodiment of the invention, the height sensing and controlling mechanism includes a light source and a light responsive device for controlling operation of an electrically energized compressor, while in another embodiment of the present invention, the height sensing and controlling mechanism includes a proximity switch arrangement.

Vehicle leveling system

A vehicle leveling system adapted for varying the attitude between the sprung and unsprung portions of an automotive vehicle, the system including a pair of leveling struts interposed between the vehicle portions and operable in response to an increase in fluid pressure supplied thereto to elevate the sprung portion of the vehicle relative to the unsprung portion thereof, an operable in response to a decrease in fluid pressure supplied thereto to lower the sprung portion of the vehicle relative to the unsprung portion thereof, an electrically energized means for supplying pressurized fluid to the struts and fluid circuit means communicating a pressurized fluid to the struts, and a control device located within the interior of the associated vehicle and operable by the vehicle driver, with the control means including first and second control elements, the first control element including electric switch for opening and closing an electrical circuit communicating a source of electrical energy with the fluid pressure supply means and the second control element comprising valve means commmunicable with the fluid circuit for selectively communicating the fluid circuit with the atmosphere.

A hydraulic clutch system comprising a first piston and cylinder assembly including a piston rod for causing a first piston to move within a first enclosure in response to actuation of a vehicle clutch pedal or the like, a second piston cylinder assembly including a second piston movable within a second enclosure from a non-actuated position to an actuated position to operate a vehicle clutch mechanism, a fluid circuit including a hydraulic conduit communicating fluid from one end of the first enclosure to the second enclosure and operable to bias the second piston from the non-actuated position toward the actuated position, a fluid reservoir communicable with the fluid circuit, and a valve operative in response to preselected movement of one of the pistons within the associated of the enclosures for communicating the reservoir with the conduit.

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Monroe, MI, United States of America

Robert W Hegel