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:
Dec. 13, 2011
Filed:
Feb. 27, 2009
Daniel Joseph Huegerich, Ankeny, IA (US);
Travis Gene Funseth, Ankeny, IA (US);
Tonya Marie O'neal, Ankeny, IA (US);
Richard Allen Humpal, Ankeny, IA (US);
Daniel Joseph Huegerich, Ankeny, IA (US);
Travis Gene Funseth, Ankeny, IA (US);
Tonya Marie O'neal, Ankeny, IA (US);
Richard Allen Humpal, Ankeny, IA (US);
Deere & Company, Moline, IL (US);
Abstract
An agricultural sprayer includes a centrifugal pump used for transferring fluid from a nurse tank to fill the sprayer tank. It is sometimes required that the centrifugal pump be primed in order to perform the transfer of fluid and this priming is done by creating a vacuum in a priming line that is connected to a suction line extending between an inlet of the pump and to a discharge line of the nurse tank, with the vacuum being caused by routing a flow of compressed air through a venturi having its throat coupled to the priming line.