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:
Mar. 29, 2011
Filed:
Nov. 26, 2008
Hans Andre Johan Theeuwen, PT Panningen, NL;
Petrus Johannes Maria Fransen, PH Nederweert, NL;
Kent Alvin Klemme, Ankeny, IA (US);
Hans Andre Johan Theeuwen, PT Panningen, NL;
Petrus Johannes Maria Fransen, PH Nederweert, NL;
Kent Alvin Klemme, Ankeny, IA (US);
John Deere Fabriek Horst B.V., Horst, NL;
Abstract
A spray linkage () for a crop sprayer includes a support () and a central frame () pivotally connected to the support (), the central frame () being pivotable about an axis () from a neutral position. At least one hydraulic cylinder () is fastened at one end to the support () and at the other end to the central frame (). To damp the spray linkage () during oscillating movements, at least a first hydraulic cylinder () has a first and a second hydraulic chamber (), a first hydraulic line () is provided which discharges into the first hydraulic chamber () and a second hydraulic line () is provided which discharges into the second hydraulic chamber (). Restrictor structure () throttles hydraulic flow from a hydraulic chamber () while hydraulic flow into a hydraulic chamber () is relatively unthrottled.