Bi-fold overhead door with concealed hydraulic cylinder
AssigneePowerLift Door Consultants, Inc.
InventorRichard Ernest Peterson
Life of this patent
Estimating the term…
Abstract
A bi-fold overhead door system including a door frame, an overhead door and a hydraulic cylinder. The frame and the overhead door have corresponding slots formed therein. A top member of the door is pivotally mounted to the door frame. The hydraulic cylinder includes a first cylinder end and a second cylinder end. The first cylinder end is operably attached to the frame. The second cylinder end is operably attached to the overhead door. The hydraulic cylinder is capable of moving the overhead door between a closed configuration and an open configuration. When the door is in the closed configuration, the hydraulic cylinder is substantially recessed within the frame and door slots.
Claims8
A bi-fold overhead door system comprising:
- a frame including a horizontal frame member, a first vertical frame member secured to a first end of the horizontal frame member and a second vertical frame member secured to a second end of the horizontal frame member, the first vertical frame member having a recess formed therein;
- a bi-fold overhead door having a width greater than the distance between the first and second vertical frame members, comprising:
- an upper door leaf with a recess formed therein, the upper door leaf being pivotally mounted to the frame;
- and
- a lower door leaf that is pivotally mounted to the upper door leaf;
- and
- at least one hydraulic cylinder comprising a first cylinder end and a second cylinder end, wherein the first cylinder end is operatively attached to the frame, wherein the second cylinder end is operatively attached to the upper door leaf, wherein the hydraulic cylinder is capable of moving the bi-fold overhead door between a closed configuration and an open configuration with respect to the frame, and wherein the hydraulic cylinder is operatively aligned with and substantially enclosed in the first vertical frame member recess and the upper door leaf recess when the bi-fold overhead door is in the closed configuration.
Dependencies are inferred from the claim text.