The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1999
Filed:
Mar. 31, 1998
Frederick D Proksch, Garner, NC (US);
Lyle E York, Peoria, IL (US);
Other;
Abstract
In the operation of a construction machine, various forces are exerted on a seat which are dampened by a shock absorber. A seat suspension mechanism is provided between the seat and the shock absorber for coordinating the movement of the seat. The seat suspension system has first and second pairs of link arms arranged on opposite sides of the seat. The first and second pairs of link arms each have a controller and follower arm which are pivotally joined substantially at a midpoint therealong. A first end of the controller arms are fixedly mounted for pivotally movement to the front portion of the base with a second end fixedly mounted for pivotally movement to the rear portion of the seat to provide movement along an arcuate path in response to the plurality of forces exerted during operation of the machine. A first end of the follower arms are operatively associated with the front portion of the bottom surface of the seat with a second end operatively associated with the rear portion of the base to provide movement along a second predetermined path. The second predetermined path allows for corrective motion to compensate the arcuate path of the controller arms which provides a substantially constant distance between the seat and a foot-operated control pedal throughout the movement of the seat.