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. 30, 1980
Filed:
Jun. 08, 1979
Marlo G Van Klompenburg, Sioux Center, IA (US);
Jeffery A Peterson, Canby, MN (US);
Eric W Nelson, Minneapolis, MN (US);
Truth Incorporated, Owatonna, MN (US);
Abstract
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame. The operator includes a first operator arm rotatable about a fixed axis and having an end adapted for movable engagement with the sash at a distance from said one edge of the sash to impart a rotational force to the sash, a second operator arm and a connecting link pivotally connected between said second operator arm and the sash adjacent said edge, and said second operator arm being pivotally mounted on the first operator arm, with there being intermeshing drive gears fixed one to each of said arms, with one gear being a drive gear and the other gear being a driven gear. Rotation imparted to the drive gear causes rotation of the first operator arm and bodily movement and rotation of the second operator arm with the latter arm exerting a force on the connecting link acting in a direction generally parallel to the path of linear movement of the sash edge.