US 11,725,415 B2
Ada door knob
Andy Chen, Xiamen (CN); and Elliott Schneider, Foothill Ranch, CA (US)
Filed by Spectrum Brands, Inc., Middleton, WI (US)
Filed on Dec. 29, 2020, as Appl. No. 17/136,575.
Claims priority of provisional application 62/956,890, filed on Jan. 3, 2020.
Prior Publication US 2021/0207397 A1, Jul. 8, 2021
Int. Cl. E05B 1/00 (2006.01); E05C 1/12 (2006.01); F16H 19/04 (2006.01); E05C 1/00 (2006.01)
CPC E05B 1/003 (2013.01) [E05C 1/12 (2013.01); F16H 19/04 (2013.01); E05C 1/004 (2013.01); E05Y 2201/716 (2013.01); E05Y 2201/722 (2013.01); E05Y 2900/132 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A door latch operator comprising:
a knob on a door configured to articulate in response to a linear force, wherein the linear force is perpendicular to a central, longitudinal axis of a latch, wherein the knob includes a proximal end having a chamfered edge;
a transmission configured to translate the linear force into a rotational motion, the transmission including a housing defining a pin slot and an opening, the pin slot parallel to the central, longitudinal axis of the latch;
a latch bolt configured to extend from the latch absent the rotational motion and retract into the latch upon reception of the rotational motion;
a rose configured to enclose the transmission between the door and the rose, the rose defining a slot aligned with the opening of the housing of the transmission;
a pivot pin located in the pin slot of the housing of the transmission; and
an adapter joining the proximal end of the knob to the transmission, the adapter pivotably supported by the pivot pin and extending through both the opening of the housing of the transmission and the slot of the rose, wherein the adapter includes an annular shoulder disposed outside of the rose and configured to couple to the proximal end of the knob, the annular shoulder having a chamfered surface that corresponds to the chamfered edge of the knob.