Donaldson Comapny, Inc.

Other

Robert Dean Johnston

Daniel Eric Adamek

Steven K Campbell

Benny K Nelson

David J Burton

Scott M Brown

Richard Patrick Manahan

Timothy Jon Wessels

Matthew Alan Kalis

Scott Brown

Richrad Patrick Manahan

An air cleaner assembly is disclosed. In one aspect, the air cleaner assembly includes a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet. The air cleaner also includes a filter cartridge received within the housing and covering the access opening. The air cleaner also includes a lock mechanism. The lock mechanism is movable between an unlocked position in which the filter cartridge can be installed and removed from the housing and a locked position in which the filter cartridge is secured within the housing. The filter cartridge and lock mechanism include interacting features allowing the lock mechanism to be moved from the unlocked position to the locked position only when the filter cartridge is installed within the housing.

Air cleaner assemblies and methods of use

Air cleaner assemblies, related methods, components therefor, and features thereof are described. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. In some examples, a filter cartridge for an air cleaner includes a media pack extending along a longitudinal axis between opposite inlet and outlet flow ends and defining an outer perimeter with opposite straight sides and a first curved end. The filter cartridge can include a seal arrangement circumscribing the media pack outer perimeter, wherein a portion of the seal arrangement extends beyond a first plane defined by the media pack outlet flow end and a portion of the seal arrangement is disposed between the first plane and a second plane defined by the media pack inlet flow end, wherein the seal arrangement is aligned along a third plane disposed at an oblique angle to the first and second planes.

Air cleaner assemblies, components, and features are described. The features can be used to provide that the air cleaner assembly cannot be fully closed, even if a cartridge is nested therein, and appears to be sealed, unless that cartridge is a proper one for the system of concern. The effect is to prevent an inappropriate cartridge, that does not properly seal, from being inadvertently installed in the assembly.

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

An approaching vehicle informing system and method for informing the driver of a vehicle of the presence of a relatively approaching emergency vehicle and providing the driver with information regarding the amount of time until vehicles meet. Included are a transmitting station for simultaneously emitting periodic electromagnetic and sound pulses of preselected frequencies located on the emergency vehicle, and a receiving station located on the driver's vehicle. The receiving station includes circuitry to receive the electromagnetic and sound pulses and discriminate signals of the preselected frequencies. A microcomputer is programmed to measure the time interval between simultaneously emitted electromagnetic and sound pulses, determines the Doppler frequency shift of the received sound pulse, and calculates the time until vehicles meet, which is displayed in numerical form to the driver in the event the Doppler frequency of received sound pulses exceeds the frequency of emitted sound pulses.

Approaching vehicle informing system and method

Growing community of inventors

Minneapolis, MN, United States of America

Robert Dean Johnston