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:
Oct. 13, 2020
Filed:
Feb. 01, 2018
Applicant:
Cnh Industrial America Llc, New Holland, PA (US);
Inventors:
John Posselius, Ephrata, PA (US);
Tim Stombaugh, Nicholasville, KY (US);
Yongbo Wan, Dublin, OH (US);
Assignee:
CNH Industrial America LLC, New Holland, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B05B 7/32 (2006.01); B05B 12/14 (2006.01); G05D 11/13 (2006.01); A01C 23/04 (2006.01); A01C 23/00 (2006.01); B05B 1/30 (2006.01);
U.S. Cl.
CPC ...
B05B 7/32 (2013.01); B05B 12/1418 (2013.01); G05D 11/135 (2013.01); A01C 23/007 (2013.01); A01C 23/047 (2013.01); B05B 1/3053 (2013.01);
Abstract
A system for metering liquids at very low flows for use with agricultural sprayers is provided. The system may utilize two electronically controlled solenoid valves in series with a storage chamber in between. The flow may be a function of the PWM control of each of the valves, the phase relationship between the control signals, the storage chamber in between, the pressure difference across the metering device, and the fluid being metered.