US 12,448,833 B2
Fenestration unit with sill arrangement fluid management system
Jacob David Anderson, Remond, OR (US)
Assigned to JELD-WEN, Inc.
Filed by JELD-WEN, Inc., Charlotte, NC (US)
Filed on Aug. 28, 2023, as Appl. No. 18/456,850.
Prior Publication US 2025/0075556 A1, Mar. 6, 2025
Int. Cl. E06B 7/14 (2006.01); E06B 1/68 (2006.01); E06B 1/70 (2006.01); E06B 3/46 (2006.01); E06B 3/96 (2006.01); E06B 3/964 (2006.01)
CPC E06B 7/14 (2013.01) [E06B 1/68 (2013.01); E06B 1/70 (2013.01); E06B 3/4609 (2013.01); E06B 3/9632 (2013.01); E06B 3/964 (2013.01); E06B 3/9641 (2013.01); E06B 3/9642 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sill arrangement for a fenestration frame configured for supporting a panel, the sill arrangement comprising:
a sill that is elongate and that includes a first longitudinal end and a second longitudinal end, the sill including a first chamber, a second chamber, a third chamber, and a fourth chamber, the sill including a first internal wall that separates the first chamber from the second chamber; and
a corner key having a sill-facing surface, the corner key coupled to the first longitudinal end of the sill along the sill-facing surface, the corner key comprising:
a first port included on the sill-facing surface, the first port defining a first fluid passage between the first and second chambers of the sill, the first port defining a second fluid passage between the second and third chambers of the sill;
a second port included on the sill-facing surface and offset from the first port, the second port defining a third fluid passage between the third and fourth chambers; and
a drain in fluid communication with the fourth chamber and configured to direct fluid from the fourth chamber and out of the corner key.