Patent ID: 6834415
Filing Date: 2004-12-28
Classification: E05D,E05Y,Y10T

Abstract:
In combination, a first door, a frame, having a bottom horizontal frame member having a planar bottom frame member portion, a top horizontal frame member having a planar top frame member portion, and a first generally vertical frame member, and a pair of concealed hinges for said first door movable from a closed to an open position, said first door having a substantially planar front face portion, and a rear substantially planar face portion, and generally parallel planar top and bottom edge face portions and a substantially planar end face portion intersecting said substantially planar front face portion and forming a front pivot corner and mounted in said frame and said first generally vertical frame member having a substantially planar front face portion and presenting a substantially planar side face portion generally parallel to and closely spaced from said planar first door end face portion and said pivot corner when said first door is in said closed position; each of said concealed hinges comprising:a. an elongated door plate member having a lower edge and a side edge formed with fastener openings therethrough, and a projection member extending from said lower edge of said door plate member to a narrow distal end and at an angle thereto and each of said door plate members being connected to respective upper and lower portions of said rear face portion of said first door adjacent said first door front pivot corner; b. a hinge base plate member formed with fastener openings connected to said respective planar top and bottom frame member portions of said top and bottom frame members; c. pivot means connected to said distal end of said door plate projection member and to said hinge base plate member; d. said pivot means is located with respect to said elongated door plate member and said hinge base plate member adjacent said substantially planar front face portion of said first door and adjacent said planar first door end face portion at a point sufficient distance from said planar side face portion of said first vertical frame member and from said substantially planar front face portion of said first door so that the arc scribed by said front pivot corner of said door adjacent said first vertical frame member when said first door is pivoted for rotation about said pivot means from said closed to open positions does not intersect said planar side face portion of said first vertical frame member, and said planar front face portion of said first door when in said closed position is substantially parallel to said planar front face portion of said first vertical frame member, e. at least one of said fastener openings in said door plate member is elongated in its vertical direction to permit adjustment of the relative attachment of said first door in a vertical direction; and f. at least two of said fastener openings in said hinge base plate member are elongated in a direction at right angles to said first door when said first door is in its closed position so as to permit front to rear adjustment of the location of said hinge base plate member relative to a frame opening defined by a planar front face portion of said first vertical frame member, planar front face portion of said bottom frame member and, planar front face portion of said top horizontal frame member.