US 11,778,441 B2
Method and apparatus for protecting a miner
Michael W. Bertosh, Roswell, GA (US); Michael Berube, Marietta, GA (US); Kelly Norton, Roswell, GA (US); and Brian Dunkin, Boulder, CO (US)
Assigned to Strata Products Worldwide, LLC, Sandy Springs, GA (US)
Filed by Michael W. Bertosh, Roswell, GA (US); Michael Berube, Marietta, GA (US); Kelly Norton, Roswell, GA (US); and Brian Dunkin, Boulder, CO (US)
Filed on Jul. 11, 2022, as Appl. No. 17/862,365.
Application 17/862,365 is a division of application No. 15/650,268, filed on Jul. 14, 2017, granted, now 11,388,571.
Application 15/650,268 is a division of application No. 14/325,028, filed on Jul. 7, 2014, granted, now 9,712,949, issued on Jul. 18, 2017.
Application 14/325,028 is a continuation in part of application No. 14/290,755, filed on May 29, 2014, granted, now 9,992,610, issued on Jun. 5, 2018.
Claims priority of provisional application 61/847,846, filed on Jul. 18, 2013.
Claims priority of provisional application 61/832,259, filed on Jun. 7, 2013.
Prior Publication US 2022/0369087 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G08B 21/22 (2006.01); G08B 21/02 (2006.01); B60Q 9/00 (2006.01); H04W 84/12 (2009.01); H04W 4/80 (2018.01); H04W 76/12 (2018.01); F16P 3/14 (2006.01); H04W 84/18 (2009.01)
CPC H04W 4/80 (2018.02) [B60Q 9/008 (2013.01); F16P 3/145 (2013.01); G08B 21/02 (2013.01); G08B 21/22 (2013.01); H04W 76/12 (2018.02); H04W 84/12 (2013.01); H04W 84/18 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus for protecting a miner from injury by a machine in a mine comprising:
explosion-proof housing;
a proximity sensing portion disposed in the housing having a field source which produces a magnetic field that is used to sense a location of the miner relative to the machine; and
a wireless communication portion disposed in the housing through which the field produced by the field source is changed remotely and wirelessly from outside the housing, the wireless communication portion in electrical communication with the proximity sensing portion.