US 12,276,152 B2
Door closer casings
Mitchell T. Barbon, Indianapolis, IN (US); and Jonah M. Pattar, Bangalore (IN)
Assigned to Schlage Lock Company LLC, Carmel, IN (US)
Filed by Schlage Lock Company LLC, Carmel, IN (US)
Filed on Jun. 21, 2022, as Appl. No. 17/845,466.
Application 17/845,466 is a continuation of application No. 17/115,312, filed on Dec. 8, 2020, granted, now 11,365,575.
Application 17/115,312 is a continuation of application No. 16/446,103, filed on Jun. 19, 2019, granted, now 10,858,872, issued on Dec. 8, 2020.
Claims priority of provisional application 62/687,072, filed on Jun. 19, 2018.
Prior Publication US 2023/0116272 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E05F 3/00 (2006.01); E05F 3/10 (2006.01); E05F 3/12 (2006.01); E05F 3/22 (2006.01)
CPC E05F 3/102 (2013.01) [E05F 3/12 (2013.01); E05F 3/227 (2013.01); E05Y 2201/41 (2013.01); E05Y 2201/716 (2013.01); E05Y 2600/45 (2013.01); E05Y 2600/46 (2013.01); E05Y 2900/132 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A door closer, comprising:
a casing;
a pinion rotatably mounted to the casing for rotation through a plurality of movement zones;
a rotatable adjustment mechanism mounted to the casing, wherein the rotatable adjustment mechanism comprises a valve configured to adjust an operating characteristic of the door closer for a particular movement zone of the plurality of movement zones; and
a movement zone key provided at the door closer, the movement zone key comprising:
a representation of a door swing, including representations of the plurality of movement zones; and
a plurality of valve function indicia positioned to relate each valve function indicium with a corresponding movement zone of the plurality of movement zones, the plurality of valve function indicia comprising a first instance of a first valve function indicium, wherein the first instance of the first valve function indicium is positioned to relate the first instance of the first valve function indicium with the particular movement zone;
wherein the door closer further comprises:
a second instance of the first valve function indicium indicating that the rotatable adjustment mechanism is operable to adjust the operating characteristic for the particular movement zone; and
a second indicium relating a first rotational direction with a first adjustment effected by rotating the rotatable adjustment mechanism in the first direction.