Patent ID: 11871843
Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC A  H  F  G | IPC A  F

Claim 17:
18. A frame defining an interior and an exterior, the frame comprising:
an upper back frame member;
an upper first side frame member coupled to upper back frame member at a first upper corner;
an upper front frame member;
an upper corner bracket coupled to the upper first side frame member and the upper front frame member;
a lower back frame member;
a lower first side frame member coupled to the lower back frame member at a first lower corner;
a lower front frame member;
a lower corner bracket coupled to the lower first side frame member and the lower front frame member;
a first upright coupled to the upper back frame member and the upper first side frame member at the first upper corner; and
a second upright coupled to the upper front frame member at an upper coupling location and the lower front frame member at a lower coupling location, wherein the upper coupling location is spaced from the upper corner bracket and the lower coupling location is spaced from the lower corner bracket,
wherein the frame defines an open space between the upper corner bracket and the lower corner bracket, the open space devoid of any structural member extending between the upper corner bracket and the lower corner bracket, and
wherein the upper corner bracket comprises:
a first retainer coupled to an end of the upper first side frame member, the first retainer at least partially comprising at least one first material and defining a first longitudinal axis;
a second retainer coupled to the first retainer and defining a second longitudinal axis substantially perpendicular to the first longitudinal axis of the first retainer, the second retainer coupled to an end of the upper front frame member such that the upper first side frame member and the upper front frame member are substantially perpendicular with respect to one another when respectively received by the first retainer and the second retainer, and the second retainer at least partially comprising the at least one first material;
a first exterior surface at least partially defined by the first retainer and at least partially comprising at least one second material, the first exterior surface comprising a first door panel interface configured to provide a first seal between the first exterior surface and an interior surface of a first door panel in a closed position, wherein the at least one first material is relatively more rigid than the at least one second material, and the at least one second material is relatively more elastic than the at least one first material; and
a second exterior surface at least partially defined by the second retainer and at least partially comprising the at least one second material, the second exterior surface comprising a second door panel interface configured to provide a second seal between the second exterior surface and an interior surface of a second door panel in a closed position, the first door panel interface and the second door panel interface substantially perpendicular with respect to one another;
wherein the first retainer comprises a first frame member interface configured to be coupled to the upper first side frame member, and wherein the second retainer comprises a second frame member interface configured to be coupled to the upper front frame member; and
wherein the first frame member interface comprises a first aperture configured to receive a first fastener for coupling the upper first side frame member to the first frame member interface, and wherein a sealing portion at least partially surrounds the first aperture and is configured to provide a first fastener seal between the first aperture and the upper first side frame member.