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:
Mar. 10, 1987
Filed:
Sep. 30, 1985
Kevin M Fruechte, Fairmont, MN (US);
Gary J Andrejeski, DeForest, WI (US);
Robert E Braatz, Sun Prairie, WI (US);
The BOC Group, Inc., Montvale, NJ (US);
Abstract
A switching mechanism and valve using the same wherein a two remote valve or switch positions are provided. The switching mechanism includes a valve operator having of outwardly extending port closures that move above a central pivot point. As the valve operator shifts between its two remote positions, each port closure closes or opens respectively a port associated with such port closure. A flat bearing surface is formed as part of the valve operator and is in a plane generally perpendicular to a line bisecting the angle between the two port closures. A roller, biased against that flat bearing surface is on a pivot arm also moveable about its remote pivotable end. The biased roller normally holds the valve or switch in one of its remote positions. As the valve operator is moved to its other remote position the roller rolls along the flat bearing surface such that no stable alignment ever occurs when the axis of the roller pivot arm is in line with a line between the pivot point of the pivot arm and the central pivot point of the valve operator.