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. 05, 1994
Filed:
May. 04, 1992
Bruce A Baier, Pella, IA (US);
Pella Corporation, Pella, IA (US);
Abstract
A window frame member is substantially pre-manufactured leaving only cutting the mortise and tenon ends of the rail and stile frame members along with cutting the glass stop to the required width. The pre-manufactured frame members include a continuous groove to receive removable glazing panel retention clips. A breather channel opening is cut in the mortise end of the stile frame member avoiding a separate drilling operation. The window frame is versatile and will accommodate multiple window accessories including a muntin grid and light control means such as a blind between two window units. An energy transmittance control system provides a balanced effective control of ultraviolet and near infrared light while maximizing transmission of the visible light. In a three glazing pane window assembly the outer pane includes two transparent silver metal layers while the inner pane includes one silver layer. One silver layer is provided on a stretched polyester film suspended between the outer and middle panes in a krypton filled insulated glass unit.