US 11,673,787 B1
Empty keg detection for carbonated beverages
Lev Volftsun, Sterling, VA (US); Alex Belfor, Sterling, VA (US); and Paras Goda, Sterling, VA (US)
Assigned to SESTRA SYSTEMS INC, Sterling, VA (US)
Filed by Lev Volftsun, Sterling, VA (US); Alex Belfor, Sterling, VA (US); and Paras Goda, Sterling, VA (US)
Filed on Aug. 27, 2021, as Appl. No. 17/458,776.
Application 17/458,776 is a division of application No. 16/503,681, filed on Jul. 5, 2019, granted, now 11,161,729.
Application 16/503,681 is a continuation in part of application No. 15/869,028, filed on Jan. 11, 2018, granted, now 10,294,093, issued on May 21, 2019.
Application 15/869,028 is a continuation in part of application No. 15/487,488, filed on Apr. 14, 2017, granted, now 9,926,181, issued on Mar. 27, 2018.
Application 15/487,488 is a continuation in part of application No. 15/424,478, filed on Feb. 3, 2017, granted, now 10,167,183, issued on Jan. 1, 2019.
Application 15/424,478 is a continuation in part of application No. 15/332,117, filed on Oct. 24, 2016, granted, now 10,294,092, issued on May 21, 2019.
Application 15/332,117 is a continuation in part of application No. 14/686,820, filed on Apr. 15, 2015, granted, now 10,125,002, issued on Nov. 13, 2018.
Claims priority of provisional application 62/793,575, filed on Jan. 17, 2019.
Claims priority of provisional application 62/695,213, filed on Jul. 9, 2018.
This patent is subject to a terminal disclaimer.
Int. Cl. B67D 1/08 (2006.01); G01F 23/30 (2006.01); B67D 1/00 (2006.01); B67D 1/12 (2006.01)
CPC B67D 1/0878 (2013.01) [B67D 1/0004 (2013.01); B67D 1/0888 (2013.01); B67D 1/1272 (2013.01); G01F 23/30 (2013.01); B67D 2001/1261 (2013.01); Y10T 137/7358 (2015.04)] 6 Claims
OG exemplary drawing
 
1. A method for dispensing carbonated beverages from a bulk keg utilizing a sensor enabled FOB providing sensor output data used to detect peaks and troughs, trigger off of thresholds and analyze sinusoidal curves when a magnetic float is within sensing range of the sensors, thereby allowing for calculation of the float speed and acceleration.