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:
Jul. 25, 1995
Filed:
Jun. 14, 1993
Applicant:
Inventors:
Jesper Lauesen, Birkerod, DK;
Bjarne Borresen, Soborg, DK;
Assignee:
V. Kann Rasmussen Industri A/S, Soborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F / ;
U.S. Cl.
CPC ...
49386 ; 49324 ;
Abstract
A compact counterbalanced window operator includes a housing in which operating arms pivotally connected in the housing and slidingly and pivotally connected to a sash of the window are counterbalanced by a torsion spring. In one embodiment, connections between the torsion spring and the operating arms are adjustable in order to vary the counterbalancing force applied to the operating arms.