US 12,072,134 B2
Systems and methods for creating clear ice
Todd Stevenson, Novato, CA (US); Bryce Peterson, Hayward, CA (US); Michael Schaller, Louisville, CO (US); and David Perez, Menlo Park, CA (US)
Assigned to Abstract Ice, Inc., Novato, CA (US)
Appl. No. 17/774,665
Filed by Abstract Ice, Inc., Novato, CA (US)
PCT Filed Nov. 5, 2020, PCT No. PCT/US2020/059014
§ 371(c)(1), (2) Date May 5, 2022,
PCT Pub. No. WO2021/092108, PCT Pub. Date May 14, 2021.
Claims priority of provisional application 62/931,467, filed on Nov. 6, 2019.
Prior Publication US 2022/0397326 A1, Dec. 15, 2022
Int. Cl. F25C 1/20 (2006.01)
CPC F25C 1/20 (2013.01) [F25C 2301/00 (2013.01); F25C 2600/04 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method making clear ice, comprising:
providing a mold comprising:
one or more sides defining a cavity,
a fluid inlet valve,
a fluid outlet valve, and
a coolant source in thermal communication with the one or more sides;
inserting a skewer through one or more apertures defined by the mold and into the cavity, the skewer being configured to be coupled to an item;
circulating, using the fluid inlet and outlet valves, a fluid in the cavity defined by the one or more sides;
varying over time one or both of: a temperature of the coolant source or a fluid flow rate, through the fluid inlet valve, as a percentage of max flow; and
retracting the skewer at a predetermined time.