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:
Jan. 30, 2001
Filed:
May. 18, 1999
Gunter Kurth, Ranstadt, DE;
Hassia Verpackungsmaschinen GmbH, Ranstadt, DE;
Abstract
A dispensing valve comprises a housing defining a cylindrical cavity and feeding and discharge channels communicating with the cavity respectively through feeding and discharge ports. The cylindrical cavity has a diameter larger than the diameter of the feeding and discharge channels and the feeding and discharge ports. A pump intake and ejection port communicates with the cavity, the feeding and discharge channels being arranged substantially opposite the pump intake and ejection port. A closing part comprises an adjusting shaft sealing protruding into the housing and rotatable about an axis, and a cam carried by the adjusting shaft for rotation in the cavity, the cam being oriented toward one side with respect to the adjusting shaft axis and having a closing face extending parallel to the cylindrical wall of the cavity and being rotatable in a cylindrical adjustment plane extending over the feeding and discharge ports. The closing face has a radius which is smaller than the radius of a portion of the cylindrical cavity wall outside the cylindrical adjustment plane, and the closing face has an arc length dimensioned so that the closing face closes the feeding and discharge ports in one rotary position of the cam and, in another rotary position, the closing face extends from one of the rims of the pump intake and ejection port to an inner rim of a respective one of the feeding and discharge ports.