Patent ID: 11927091
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 12:
13. A drill bit comprising:
a bit body defining a rotational axis;
a plurality of cutters secured to the bit body, including a gauge cutter disposed on a gauge section and defining a gauge diameter of the drill bit;
a first reciprocating gauge assembly comprising a cavity defined in the bit body, a piston reciprocably disposed in the cavity, a wear element on an outwardly facing end of the piston, a piston retainer for moveably retaining the piston in the cavity, and a spring biasing the piston outwardly to a neutral position of the wear element under gauge;
a gauge pad on the bit body having first and second steps of different diameters, wherein the reciprocating gauge assembly is disposed on the first step; and
a second reciprocating gauge assembly on the second step of the gauge pad and including a second piston reciprocably disposed in a second cavity, a second wear element on an exposed end of the second piston, and a second spring biasing the second piston outwardly to a second neutral position of the second wear element with respect to the gauge diameter.