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. 20, 2022
Filed:
Aug. 03, 2020
Deere & Company, Moline, IL (US);
Adam H. Kwiatkowski, Dubuque, IA (US);
Daniel J. Wallace, Iowa City, IA (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
A hydraulic cartridge valve including a housing with an interior, first and second ports that pass through the housing, a poppet in the housing interior, and an activation sensor. The poppet moves between a closed position that blocks flow through the housing interior between the first and second ports, and an open position that allows flow through the housing interior between the first and second ports. The activation sensor senses poppet position, and generate a valve open signal when the poppet is in the open position. The activation sensor can be a contact or contactless sensor, and can be located in an opening through the housing blocked by a diaphragm. A pushrod pushed by the poppet can activate the sensor, such that when the poppet blocks flow the pushrod is separated from the diaphragm, and when the poppet allows flow the pushrod is pushed towards the diaphragm.