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:
Feb. 01, 2011
Filed:
Aug. 28, 2008
Richard W. Heiniger, Hiawatha, KS (US);
Don Patrick Meenen, Hiawatha, KS (US);
David C. Benson, Hiawatha, KS (US);
James B. Prohaska, Prior Lake, MN (US);
Richard W. Heiniger, Hiawatha, KS (US);
Don Patrick Meenen, Hiawatha, KS (US);
David C. Benson, Hiawatha, KS (US);
James B. Prohaska, Prior Lake, MN (US);
Bestway, Inc., Hiawatha, KS (US);
Abstract
A variable rate suspension system for a boom sprayer including a lift assembly and chassis. The suspension system includes a needle valve fluidly connected to a hydraulic accumulator and a first and second lift arm cylinder. A control block provides hydraulic fluid to the system and lift arm cylinders. Dampening of vertical accelerations encountered by the chassis and transmitted to the boom sprayer through the lift assembly is controlled by adjusting the rate hydraulic fluid flows from the cylinders into the accumulator using the needle valve.