US RE50,337 E1
Hydraulic leveraged overhead door assembly
David A Crown, Waconia, MN (US); and Phillip A Crown, Lester Prairie, MN (US)
Filed by CROWN DOORS LLC, Cedar Rapids, IA (US)
Filed on Jan. 15, 2022, as Appl. No. 17/576,925.
Application 17/576,925 is a reissue of application No. 13/484,802, filed on May 31, 2012, granted, now 8,714,229, issued on May 6, 2014.
Int. Cl. E06B 3/48 (2006.01); E05D 15/26 (2006.01); E05F 15/51 (2015.01)
CPC E06B 3/483 (2013.01) [E05D 15/262 (2013.01); E05F 15/51 (2015.01); E05Y 2900/106 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A multi-panel door and frame assembly for a rough opening in a building, comprising:
a mounting frame assembly having a front [ side ] and [ a ] back side, the mounting frame assembly being mountable within a [ the ] rough opening of a [ the ] building, the mounting frame including a horizontal frame member, a first vertical frame member secured by a top end to a first end of the horizontal frame member, a second vertical frame member secured by a top end to a second end of the horizontal frame member, and at least one [ a ] linearly extendable actuator upper support bracket secured to the back side of the mounting frame assembly , for pivotally engaging an upper end of a linearly extendable actuator for rotation about a linearly extendable actuator upper pivot axis [ and extending down relative to the horizontal frame member to provide a linearly extendable actuator upper pivot axis that is beneath the horizontal frame member and adjacent to one of the first vertical frame member and the second vertical frame member] ;
a door including an upper panel and at [ a ] lower panel, the upper panel having a back [ surface ] and [ a ] front surface, wherein the upper panel is pivotally secured by a top edge to the mounting frame horizontal [ frame ] member for rotation about an upper panel pivot axis, and wherein the upper panel is pivotally secured by a bottom edge to a top edge of the lower panel [ , and wherein the back surface of the upper panel is associated with the back side of the mounting frame assembly] ;
at least one [ a ] linearly extendable actuator lower support bracket secured to and extending rearward [ away ] from a [ the ] back surface of the upper panel for pivotally engaging a lower end of a linearly extendable actuator for rotation about [ to provide ] a linearly extendable actuator lower pivot axis;
at least one [ a ] linearly extendable actuator having an upper [ end ] and [ a ] lower end, pivotally mounted by its upper end to the linearly extendable actuator upper support bracket and pivotally secured by its lower end to the linearly extendable actuator lower support bracket [ , wherein the linearly extendable actuator upper support bracket is configured to pivotally engage the upper end of the linearly extendable actuator for rotation about the linearly extendable actuator upper pivot axis and the linearly extendable actuator lower support bracket is configured to pivotally engage the lower end of the linearly extendable actuator for rotation about the linearly extendable actuator lower pivot axis] ;
a linearly extendable actuator control assembly in communication with the linearly extendable actuator to control extension and retraction of the linearly extendable actuator to open and close the door; and
wherein the linearly extendable actuator upper pivot axis is located below and behind the upper panel pivot axis, and the linearly extendable actuator lower pivot axis is located below and behind the linearly extendable actuator upper pivot axis, when the door is in its closed position [ at a first distance away from a plane defined by the back surface of the upper panel, the linearly extendable actuator upper pivot axis is located at a second distance away from the plane defined by the back surface of the upper panel, and the first distance is greater than the second distance] .