US 11,854,377 B2
Field installable light curtain side status module
Nick Olsen, Minneapolis, MN (US); William Theunissen, Minneapolis, MN (US); Charles Dolezalek, Stacy, MN (US); Scott Eliason, Minneapolis, MN (US); John Klesk, Minneapolis, MN (US); Matthew Michael Gelineau, Minneapolis, MN (US); and Dean Erickson, Minneapolis, MN (US)
Assigned to Banner Engineering Corp., Minneapolis, MN (US)
Filed by Banner Engineering Corp., Minneapolis, MN (US)
Filed on Aug. 30, 2022, as Appl. No. 17/823,312.
Claims priority of provisional application 63/260,728, filed on Aug. 30, 2021.
Prior Publication US 2023/0064404 A1, Mar. 2, 2023
Int. Cl. G08B 5/36 (2006.01); G01V 8/20 (2006.01); F16P 3/14 (2006.01)
CPC G08B 5/36 (2013.01) [F16P 3/14 (2013.01); G01V 8/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light curtain status indicator, comprising:
a light emitting module comprising a refractive cover and configured to emit a visual indicium at a wide angle corresponding to a status of at least one predetermined signal; and,
a coupling member configured to be releasably captured within a longitudinally extending channel of a housing of a light curtain, such that the light curtain status indicator is disposed on a side of and substantially parallel to the housing, wherein the light emitting module emits the visual indicium in an emitting plane intersecting an optical axis of the light curtain, and,
when the light curtain status indicator is releasably coupled to the housing, the emitting plane is oriented at an angle α relative to a plane tangential to a mounting surface of the light curtain housing, and α<90°, such that the light emitting module is viewable from at least a 180° viewing angle.