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:
Jun. 19, 2001
Filed:
Aug. 13, 1998
Eugen Rost, Wolfegg-Wassers, DE;
Waeschle GmbH, Weingarten, DE;
Abstract
A pipe switch includes a plug with a spherically arched circumferential surface and having ports for at least one channel. The plug is rotatably supported in a housing about a pivot axis which is formed with an inlet port and two outlet ports. In order to simplify the shape of the housing and reduce the complexity of manufacture, the plug is a spherical segment within a spherical volume bounded by the great circle, with the ports of the channel being bounded at least approximately by substantially coincidental ellipses in the spherical segment of the plug in a projection along an imaginary line connecting the centers of the ports, whereby this imaginary line extends offset with respect to the pivot axis of the plug.