Steven D Cory

US Patent:

20100229468, Sep 16, 2010

Filed:

May 25, 2010

Appl. No.:

12/787111

Inventors:

Richard Allen - West Lakeland Township MN, US
Todd N. Stratmoen - Mahtomedi MN, US
Michael Gonnerman - Lakeville MN, US
Rashid Darayus Bharucha - Roseville MN, US
Gabriel Gromotka - Pella IA, US
Keith Kibbel - Forest Lake MN, US
Steven Edward Cory - Mason City IA, US

Assignee:

PELLA CORPORATION - Pella IA

International Classification:

E06B 7/28
E06B 9/44
E06B 3/00

US Classification:

49171, 160 98, 49506

Abstract:

A door with a moveable window sash and a method of operating the same. The door includes vertical jambs with vertical channels. A window sash is movable in the vertical channels. A retractable screen assembly is attached to the door. The retractable screen assembly includes a roller, a flexible screen attached at a first end to the roller and at a second end to the movable window sash, and a biasing mechanism adapted to apply a continuous torque to the roller. The torque generates a positioning force on the window sash equal to at least 50% of the force of gravity acting on a window sash, such that the window sash can be positioned at an infinite number of locations along the vertical channels.

US Patent:

20050081463, Apr 21, 2005

Filed:

Oct 17, 2003

Appl. No.:

10/687863

Inventors:

Richard Allen - West Lakeland Township MN, US
Todd Stratmoen - Mahtomedi MN, US
Michael Gonnerman - Lakeville MN, US
Rashid Bharucha - Roseville MN, US
Gabriel Gromotka - Pella IA, US
Keith Kibbel - Forest Lake MN, US
Steven Cory - Mason City IA, US

International Classification:

E06B001/04

US Classification:

052204100

Abstract:

A door with a moveable window sash and a method of operating the same. The door includes vertical jambs with vertical channels. A window sash is movable in the vertical channels. A retractable screen assembly is attached to the door. The retractable screen assembly includes a roller, a flexible screen attached at a first end to the roller and at a second end to the movable window sash, and a biasing mechanism adapted to apply a continuous torque to the roller. The torque generates a positioning force on the window sash equal to at least 50% of the force of gravity acting on a window sash, such that the window sash can be positioned at an infinite number of locations along the vertical channels.