A composite reinforced mull post is disclosed or use in an exterior building entryway assembly, engaging a door on one side and a side light window on the other side. The mull post may comprise a polymer profile portion and first and second reinforcing members. The profile portion comprises a layer
A composite reinforced mull post is disclosed or use in an exterior building entryway assembly, engaging a door on one side and a side light window on the other side. The mull post may comprise a polymer profile portion and first and second reinforcing members. The profile portion comprises a layer of polyvinyl chloride with a hollow center. The first reinforcing member comprises an engineered material such as a wood laminate, and the second reinforcing member comprises a U-shaped steel channel that fits around one end of the first reinforcing member. The reinforcing members are received within the hollow center of the polymer profile portion and run the entire length of the mull post to provide substantial rigidity to the assembly. A polymer cap layer may be co-extruded on the outer surface of the polymer profile portion to provide the mull post with a desired finished surface appearance and/or color.
대표청구항▼
1. A reinforced mull post, comprising: a unitary mull post profile comprising an elongated support portion and a stop portion, the support portion having first and second support faces, and the stop portion having first and second legs forming first and second raised stops laterally offset from said
1. A reinforced mull post, comprising: a unitary mull post profile comprising an elongated support portion and a stop portion, the support portion having first and second support faces, and the stop portion having first and second legs forming first and second raised stops laterally offset from said first and second support faces, respectively, the mull profile further comprising a hollow central chamber extending within the support portion and the stop portion;a first reinforcing member disposed within the hollow central chamber; anda second reinforcing member disposed within the hollow central chamber and positioned such that the second reinforcing member wraps around a portion of the first reinforcing member within the stop portion of the mull post profile, the second reinforcing member including first and second legs and being made from a material that is different from that of the first reinforcing member, the first and second legs of the second reinforcing member extending along respective exterior surfaces of the first reinforcing member and having width dimensions that are less than a width dimension of the first reinforcing member;wherein the first and second reinforcing members enhance a structural strength and a rigidity of the mull post profile. 2. The reinforced mull post of claim 1, wherein the mull post profile comprises extruded polyvinyl chloride (PVC). 3. The reinforced mull post of claim 1, wherein the first reinforcing member comprises an engineered wood material. 4. The reinforced mull post of claim 3, wherein the first reinforcing member comprises laminated veneer lumber. 5. The reinforced mull post of claim 1, wherein the second reinforcing member comprises a U-shape. 6. The reinforced mull post of claim 1, wherein the first and second legs of the second reinforcing member extend over 50% of the width of the first reinforcing member. 7. The reinforced mull post of claim 5, wherein the second reinforcing member comprises steel. 8. The reinforced mull post of claim 1, further comprises a cap stock layer disposed over at least a portion of an external surface of the mull post profile. 9. The reinforced mull post of claim 1, wherein the first and second raised stops are laterally offset from said first and second support faces by respective slots configured to receive a tab member of an adjacent structure or a length of weather stripping for sealing the mull post to adjacent structure. 10. A reinforced mull post, comprising: an extruded unitary mull post profile having an elongated support portion and a stop portion, the support portion having first and second support faces, and the stop portion having first and second legs forming first and second raised stops laterally offset from said first and second support faces, respectively;a first reinforcing member disposed within a hollow central chamber of said extruded unitary mull post profile; anda second reinforcing member disposed within the hollow central chamber and positioned such that the second reinforcing member wraps around a portion of the first reinforcing member within the stop portion of the mull post profile, the second reinforcing member including first and second legs and comprising a material different from that of the first reinforcing member, the first and second legs of the second reinforcing member extending along respective exterior surfaces of the first reinforcing member and having width dimensions that are less than a width dimension of the first reinforcing member;wherein the first and second reinforcing members enhance at least one of a structural strength and a rigidity of the mull post profile. 11. The door assembly of claim 10, wherein the mull post profile comprises polyvinyl chloride (PVC). 12. The reinforced mull post of claim 10, wherein the first reinforcing member comprises an engineered wood material and the second reinforcing member comprises a U-shape. 13. The reinforced mull post of claim 12, wherein the first reinforcing member comprises laminated veneer lumber. 14. The reinforced mull post of claim 10, wherein the first reinforcing member comprises laminated veneer lumber and the second reinforcing member comprises steel. 15. The reinforced mull post of claim 10, further comprises a cap stock layer disposed over at least a portion of an external surface of the mull post profile. 16. A reinforced mull post assembly, comprising: a unitary polymer mull post having an elongated support portion and a stop portion, the support portion having first and second support faces, and the stop portion having first and second legs forming first and second raised stops laterally offset from said first and second support faces by first and second slots, respectively;a first reinforcing member disposed within a hollow central chamber of said polymer mull post, the first reinforcing member having a first width dimension and including a plurality of plies; anda second reinforcing member having a U-shape including first and second legs, the second reinforcing member disposed within the hollow central chamber of the polymer mull post and wrapping around a portion of the first reinforcing member, the first and second legs of the second reinforcing member extending along respective exterior surfaces of the first reinforcing member, each of the first and second legs of the second reinforcing member having a respective width dimension that is less than the width dimension of the first reinforcing member such that the first and second legs extend along at least a portion of the first reinforcing member that is disposed within the stop portion of the polymer mull post,wherein the first and second reinforcing members enhance at least one of a structural strength and a rigidity of the polymer mull post. 17. The reinforced mull post assembly of claim 16, wherein the polymer mull post comprises extruded polyvinyl chloride and the first reinforcing member comprises laminated veneer lumber. 18. The reinforced mull post assembly of claim 16, wherein the polymer mull post comprises extruded polyvinyl chloride, the first reinforcing member comprises laminated veneer lumber, and the second reinforcing member comprises steel. 19. The reinforced mull post assembly of claim 16, further comprising a polymer cap layer disposed over an exterior surface of the polymer mull post.
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이 특허에 인용된 특허 (17)
Graham Jonathan M. ; De Vormer Kim K., Co-extruded integrally reinforced cellular PVC window sash.
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