US 12,291,924 B2
Excavation boring and shoring tool
Ted R. Dimitroff, Columbia, MO (US)
Filed by Ted R. Dimitroff, Columbia, MO (US)
Filed on Mar. 13, 2024, as Appl. No. 18/603,759.
Application 18/603,759 is a division of application No. 17/932,797, filed on Sep. 16, 2022, granted, now 11,988,044.
Prior Publication US 2024/0218741 A1, Jul. 4, 2024
Int. Cl. E21B 10/26 (2006.01); E21B 33/14 (2006.01); E21D 5/01 (2006.01)
CPC E21B 10/26 (2013.01) [E21B 33/14 (2013.01); E21D 5/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A reaming tool for excavating a hole in the ground, comprising:
a circular drill head having a first set of cutting tips adapted to break up the ground as the drill head rotates and thereby form a floor in the hole;
the circular drill head having a second set of cutting tips extending around a perimeter edge of the drill head and extending downwardly further than the first set of cutting tips to form a deepened perimeter channel of the hole;
the first and second cutting tips being operatively connected to one another so as to rotate in unison; and
a shaft connected to the drill head and extending upwardly for connection to a power source to rotatably drive the drill head to rotate the first and second cutting tips so as to simultaneously form the hole and the perimeter channel around the floor.