Access door
OwnerGunter Langenhorstinventor
Life of this patent
Estimating the term…
Abstract
An access door has an outer annular wall frame and an inner annular panel frame. The panel frame has a back flange parallel to but offset rearward from a wall face plane and having a planar front face formed with a forwardly projecting formation. It also has a rim flange projecting generally perpendicular to the plane forward from the outer edge of the back flange and having an annular inner face forming a corner with the front face of the back flange. A rigid panel set in the annular frame has an outer edge juxtaposed with the inner face of the rim flange, a back face spaced from the front face of the back flange, and a front face generally coplanar with a front edge of the rim flange. Adhesive in the space secures the panel to the panel frame.
Claims10
An access door comprising:
- an annular wall frame adapted to be set in a wall or ceiling generally parallel to a front plane thereof;
- an annular panel frame complementary to and fitting in the wall frame, generally of L-section, and having
- a back flange generally parallel to but offset rearward from the plane, having an outer edge, and having a substantially planar front face formed with a forwardly projecting formation, and
- a rim flange projecting generally perpendicular to the plane forward from the outer edge and having an annular inner face forming a corner with the front face of the back flange;
- a rigid panel set in the annular frame and having an outer edge juxtaposed with the inner face of the rim flange,
- a back face bearing on the formation, spacedly juxtaposed with the front face of the back flange, and forming an annular space extending along the projecting formation, and
- a front face generally coplanar with a front edge of the rim flange;
- and
- an annular mass of adhesive in the annular space between the front face of the back flange and the back face of the panel.
Dependencies are inferred from the claim text.