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. 02, 2018
Filed:
Feb. 06, 2015
Delaval Holding Ab, Tumba, SE;
Thomas Johansson, Tumba, SE;
DELAVAL HOLDING AB, Tumba, SE;
Abstract
A pressure control device for a milking machine includes a housing, a vacuum inlet, and two control circuits. Each circuit includes a main vacuum passage extending through the housing from the vacuum inlet to an outlet, and a main valve configured to take one of an open position and a closed position. A pilot passage extends from the main vacuum passage and includes a pilot valve body configured to take one of an open pilot position and a closed pilot position. The pilot passage acts in the open pilot position on the main valve to move to the open position, and permits in the closed pilot position the main valve to move to the closed position. A solenoid controls the pilot valve body. A holding member receives the solenoid and is attached to the housing through a first bayonet coupling.