US 12,434,406 B2
Mold core
Zachary Thomas Adrian, Alpena, MI (US); and Todd Michael O'Neil, Alpena, MI (US)
Assigned to BESSER COMPANY, Alpena, MI (US)
Filed by BESSER COMPANY, Alpena, MI (US)
Filed on May 2, 2023, as Appl. No. 18/142,521.
Claims priority of provisional application 63/337,741, filed on May 3, 2022.
Prior Publication US 2023/0356431 A1, Nov. 9, 2023
Int. Cl. B28B 7/28 (2006.01); B28B 7/00 (2006.01)
CPC B28B 7/28 (2013.01) [B28B 7/0008 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of manufacturing a mold core for a concrete product mold, the method comprising the steps of:
forming a mold core by welding together metal wire into the shape of a mold core including a ventilation opening, and into the shape of a vent body that integrally extends from the mold core from around the ventilation opening; and
forming at least one vent hole into the vent body by inserting a cutting tool through the ventilation hole and causing it to cut through the vent body; and
smoothing surfaces of the welded-together wire, which are positioned to shape a concrete product in the mold.