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:
Aug. 19, 1986
Filed:
Jun. 05, 1984
Heinrich Bucker, Langenberg, DE;
Westfalia Separator AG, Oelde, DE;
Abstract
A rinser has a partial-vacuum chamber that constantly communicates with a partial-vacuum line during the rinsing process. The partial-vacuum chamber is separated from the operating space by a diaphragm with an aperture. A spring forces the diaphragm into a position in which is closes off an air inlet into the operating space. Inside the operating space is a float with a shift rod that has a seal at the top that closes off the aperture in the diaphragm as the float rises, interrupting the communication between the operating space and the partial-vacuum line. The breakdown of partial vacuum in the operating space produces a differential pressure on diaphragm, which lifts and releases the air inlet. The seal does not release from the diaphragm until it is forced against a thrust pin loaded by another diaphragm that communicates with the partial-vacuum chamber through one aperture and with the atmosphere through another aperture. The forces exerted on the first diaphragm allow large cross-sections to the atmosphere and to the partial-vacuum line opened and closed, even with a float that, because it carries out only a control function, can be very small.