Invention Grant
- Patent Title: Mechanical mono-fold door
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Application No.: US15674422Application Date: 2017-08-10
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Publication No.: US10597925B1Publication Date: 2020-03-24
- Inventor: Paul A. Boor
- Applicant: Lester Buildings, LLC.
- Applicant Address: US MN Lester Prairie
- Assignee: Lester Building Systems, LLC
- Current Assignee: Lester Building Systems, LLC
- Current Assignee Address: US MN Lester Prairie
- Agency: Moss & Barnett
- Agent Glen E. Schumann
- Main IPC: E05F11/00
- IPC: E05F11/00 ; E05F15/627 ; E05F15/616

Abstract:
The monolithic door of the present invention includes a single panel door having a top edge and a front and back side. The door is hinged at the top edge, within a door opening, to a building structure (in one embodiment, a door frame header). A first cam style winding mechanism is secured towards the top of a first vertical member of the door frame and a second winding mechanism is secured towards the top of a second vertical member of the door frame, opposite the first vertical member. A compression strut on each side of the door is secured to tension straps or cables which are in turn attached to a corresponding winding mechanism secured to the building structure. An actuator operatively connected to the winding mechanisms rotates the drums to either to force the door open or allow the door to close.
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