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. 14, 1993
Filed:
May. 04, 1992
Applicant:
Inventors:
Martin Sindermann, Ravensburg, DE;
Eugen Rost, Wolfegg-Wassers, DE;
Assignee:
Waeschle Maschinenfabrik GmbH, Ravensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
406182 ; 406183 ;
Abstract
A pipe switch includes a housing with a cock having at least one straight passageway for selectively connecting cylindrical conduits. In order to avoid a geometric joint in both rotational directions without requiring complicated refinishing processes while yet keeping the cross section of the passageway constant, the circumferential surface of the cock and the housing inner surface are designed as coextensive freely-shaped surfaces with such a curvature that the ports of the passageway and the housing conduits are at least essentially coincidental plane sectional surfaces in both rotational positions of the cock.