US 12,297,961 B2
Low emission receptacles
Chad Thomas, Summerfield, NC (US); Howard M. Konishi, Redmond, WA (US); and Jeffrey S. Howard, Elon, NC (US)
Assigned to Engineered Controls International, LLC, Elon, NC (US)
Filed by Engineered Controls International, LLC, Elon, NC (US)
Filed on Sep. 27, 2023, as Appl. No. 18/475,764.
Application 18/475,764 is a continuation of application No. 17/453,074, filed on Nov. 1, 2021, granted, now 11,796,135.
Application 17/453,074 is a continuation of application No. 17/109,940, filed on Dec. 2, 2020, granted, now 11,162,641, issued on Nov. 2, 2021.
Application 17/109,940 is a continuation of application No. 16/538,534, filed on Aug. 12, 2019, granted, now 10,883,665, issued on Jan. 5, 2021.
Application 16/538,534 is a continuation of application No. 15/368,360, filed on Dec. 2, 2016, granted, now 10,386,017, issued on Aug. 20, 2019.
Claims priority of provisional application 62/307,195, filed on Mar. 11, 2016.
Claims priority of provisional application 62/262,749, filed on Dec. 3, 2015.
Prior Publication US 2024/0019084 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F17C 13/04 (2006.01); F16K 15/02 (2006.01); F17C 5/02 (2006.01); F17C 5/06 (2006.01); F17C 6/00 (2006.01); F17C 9/00 (2006.01)
CPC F17C 13/04 (2013.01) [F16K 15/026 (2013.01); F17C 5/02 (2013.01); F17C 5/06 (2013.01); F17C 6/00 (2013.01); F17C 9/00 (2013.01); F17C 2205/0326 (2013.01); F17C 2205/0329 (2013.01); F17C 2205/0335 (2013.01); F17C 2205/037 (2013.01); F17C 2221/033 (2013.01); F17C 2221/035 (2013.01); F17C 2223/0123 (2013.01); F17C 2223/0153 (2013.01); F17C 2223/0161 (2013.01); F17C 2250/03 (2013.01); F17C 2250/0443 (2013.01); F17C 2250/0478 (2013.01); F17C 2260/02 (2013.01); F17C 2260/036 (2013.01); F17C 2260/04 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A receptacle comprising:
a main body;
a first stem;
a first poppet connected to the first stem;
a valve seat disposed in the main body;
a first spring configured to bias the first poppet to a first closed position;
a second stem configured to slide relative to the first poppet and the first stem;
a second poppet connected to the second stem and defining a central void;
a second spring configured to bias the second poppet to a second closed position;
a check assembly at least partially disposed in the central void of the second poppet, the check assembly comprising a check and a check spring, wherein the check is moveable relative to the second poppet and the main body, and wherein the check spring is configured to bias the check to a closed check position.