Caterpillar Inc.

Alexander C Striegel

John M Spangler

David R Campbell

Jonathan Chase Catton

Eric M Prater

Andrew J Gates

Teddy E Kingham

Jon P Wallgren

An ingress/egress arrangement for a machine comprises an operator cabin and a walkway system outside the operator cabin. The operator cabin can include a plurality of posts, including first post and a second post, and a door rotatably coupled to the first post so as to be movable between at a fully open position and at a fully closed position. An opening in the operator cabin between the first post and the second post defines a first operator ingress/egress point. The walkway system provides operator access to inside the operator cabin via the door and the opening, and provides operator access to outside the operator cabin. The door, in the fully open position, can restrict operator access toward a front of the machine and can allow operator access simultaneously to the walkway system and a second operator ingress/egress point.

Ingress/egress arrangement for machine

A machine includes a machine body having an operator station and a seat assembly position at the operator station. The seat assembly includes a pneumatic support element that includes an air container having an air compressor positioned therein. The air container includes a deformable section, and a rigid section that includes a housing for the air compressor. Forming the air compressor housing integrally with the air container minimizes leak paths and improves packaging.

Machine and pneumatic seat assembly having air container with integral air compressor housing

A suspension system for a seat assembly of a machine includes an upper support member and a lower support member. A pair of scissors linkages interconnect the upper and lower support members. Each of the scissors linkages includes first and second arms pivotably attached at central portions thereof. An electronic controller is in communication with a pair of electromagnetic devices positioned at first ends of the first arms. The electronic controller is configured to energize the electromagnetic devices in response to a sensor output.

Electromagnetic suspension system for a seat assembly and machine using same

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Clayton, NC, United States of America

Alexander C Striegel