US 11,814,886 B2
Bi-fold door latch assembly
Michael L. Schweiss, Fairfax, MN (US)
Assigned to SORREL QUARTERS, LLC, Hector, MN (US)
Filed by Michael L. Schweiss, Fairfax, MN (US)
Filed on Apr. 2, 2020, as Appl. No. 16/838,884.
Application 16/838,884 is a division of application No. 15/875,776, filed on Jan. 19, 2018, granted, now 10,815,711.
Application 15/875,776 is a division of application No. 15/067,431, filed on Mar. 11, 2016, granted, now 10,053,901, issued on Aug. 21, 2018.
Claims priority of provisional application 62/193,706, filed on Jul. 17, 2015.
Prior Publication US 2020/0256106 A1, Aug. 13, 2020
Int. Cl. E05D 15/26 (2006.01); E05B 65/00 (2006.01); E05F 15/605 (2015.01); E06B 3/48 (2006.01); E05D 13/00 (2006.01); E05F 15/67 (2015.01); E05F 15/681 (2015.01)
CPC E05D 15/264 (2013.01) [E05B 65/0085 (2013.01); E05D 13/1207 (2013.01); E05D 13/1223 (2013.01); E05D 15/262 (2013.01); E05F 15/605 (2015.01); E06B 3/483 (2013.01); E05F 15/67 (2015.01); E05F 15/681 (2015.01); E05Y 2201/43 (2013.01); E05Y 2400/354 (2013.01); E05Y 2600/46 (2013.01); E05Y 2900/106 (2013.01); E05Y 2900/108 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A door latch assembly for holding upper and lower panels of a bi-fold door in an aligned position in engagement with an upright column of a building comprising:
an elongated flexible member having a first end and a second end,
a rotatable latch drum configured to be operatively attached to the building above the upper panel of the bi-fold door,
the first end of the flexible member connected to the latch drum whereby on rotation of the latch drum the flexible member selectively winds around and unwinds from the latch drum,
a support configured to be connected to the upright column,
a roller mounted on the support, said flexible member being engageable with the roller mounted on the support,
an anchor configured to be secured to the bi-fold door,
said anchor including a connector securing the second end of the flexible member to the anchor whereby on rotation of the latch drum in a first direction the flexible member is wound on the latch drum and moves and retains the upper and lower panels of the bi-fold door into the aligned position in engagement with the upright column and on rotation of the latch drum in a second direction opposite the first direction the flexible member unwinds from the latch drum to allow the upper and lower panels of the bi-fold door to move from the aligned position in engagement with the upright columns to a side-by-side position spaced from the upright columns,
the connector securing the second end of the flexible member to the anchor comprises
a sleeve rotatably mounted on the anchor,
the second end of the flexible member being secured to the sleeve whereby rotation of the sleeve winds the second end of the flexible member on the sleeve, and
a device for holding the sleeve in a selected fixed position on the anchor.