US 12,486,907 B2
Spring return valve handle arrangements
Matthew Dixon, Parma, OH (US); Joseph Bashover, Lakewood, OH (US); R. Scott Headings, Chesterland, OH (US); Karim Mahraz, Willoughby, OH (US); Ercan Balikci, Solon, OH (US); Kristopher Scott Owens, Brook Park, OH (US); Samuel Gunther Houser, Southington, OH (US); and Michael Bestic, Lyndhurst, OH (US)
Assigned to SWAGELOK COMPANY, Solon, OH (US)
Filed by Swagelok Company, Solon, OH (US)
Filed on Jul. 19, 2023, as Appl. No. 18/355,013.
Claims priority of provisional application 63/494,261, filed on Apr. 5, 2023.
Claims priority of provisional application 63/390,683, filed on Jul. 20, 2022.
Prior Publication US 2024/0026981 A1, Jan. 25, 2024
Int. Cl. F16K 5/06 (2006.01); F16K 31/56 (2006.01)
CPC F16K 5/0647 (2013.01) [F16K 31/563 (2013.01); F16F 2238/024 (2013.01); F16K 2200/305 (2021.08)] 20 Claims
OG exemplary drawing
 
1. A spring return cartridge for a rotary actuated valve, the spring return cartridge comprising:
a torsion spring having a spring-loaded intermediate portion extending between first and second end portions; and
a spring carrier sleeved with the torsion spring and having a first portion rotationally fixed with the first end portion of the torsion spring, and a second portion rotatably coupled with the second end portion of the torsion spring, such that the second end portion of the torsion spring is rotatable with respect to the spring carrier, and with respect to the first end portion of the torsion spring, between first and second rotational limit positions, with the intermediate portion of the torsion spring biasing the torsion spring second end portion to the first rotational limit position and maintaining a spring-loaded condition in the first rotational limit position;
wherein the first end portion of the torsion spring includes at least one fastener hole aligned with a corresponding fastener hole in the first portion of the spring carrier, with a fastener installed through the aligned fastener holes to rotationally secure the first end portion of the torsion spring to the first portion of the spring carrier.