Jacob C Smith

US Patent:

20220220808, Jul 14, 2022

Filed:

Nov 23, 2021

Appl. No.:

17/533763

Inventors:

- Pella IA, US
Jacob Richard Smith - Altoona IA, US

International Classification:

E21B 10/26
E21B 7/04
E21B 10/567

Abstract:

A reamer for drill string pullback of a horizontal directional drill includes a shaft portion defining a central axis and a first end configured for attachment with a drill string of the horizontal directional drill. A plurality of vanes extend radially from an outer periphery of the shaft, each of the plurality of vanes defining an outer peripheral tooth base surface. On each of the plurality of vanes, a plurality of cutter teeth are individually and removably secured along the outer peripheral tooth base surface thereof, each one of the plurality of cutter teeth including a body and a PDC insert manufactured separately from the body and joined therewith. Each cutter tooth of the plurality is coupled to the respective one of the plurality of vanes by a removable fastener extending at least partially through the cutter tooth and at least partially through the one of the plurality of vanes.

US Patent:

20210310312, Oct 7, 2021

Filed:

Jul 1, 2020

Appl. No.:

17/287752

Inventors:

- Pella IA, US
Jacob Richard Smith - Altoona IA, US

International Classification:

E21B 10/26
E21B 7/04
E21B 10/567

Abstract:

A reamer for drill string pullback of a horizontal directional drill includes a shaft portion defining a central axis and a first end configured for attachment with a drill string of the horizontal directional drill. A plurality of vanes extend radially from an outer periphery of the shaft, each of the plurality of vanes defining an outer peripheral tooth base surface. On each of the plurality of vanes, a plurality of cutter teeth are individually and removably secured along the outer peripheral tooth base surface thereof, each one of the plurality of cutter teeth including a body and a PDC insert manufactured separately from the body and joined therewith. Each cutter tooth of the plurality is coupled to the respective one of the plurality of vanes by a removable fastener extending at least partially through the cutter tooth and at least partially through the one of the plurality of vanes.

US Patent:

20200165875, May 28, 2020

Filed:

Jan 31, 2020

Appl. No.:

16/778594

Inventors:

- Pella IA, US
Jacob Richard Smith - Altoona IA, US
Michael D. Langenfeld - Pella WI, US

International Classification:

E21B 7/06
E21B 17/042
E21B 7/04

Abstract:

A pullback device for attaching to a rotary drill bit that has a pair of wrench flats on its base without disassembling or removing the rotary drill bit from a drill string. The pullback device includes an anchoring portion including a collar configured to engage with the wrench flats of the rotary drill bit. The pullback device includes a plurality of arms, each of the plurality of arms having a first end including an attachment location configured to attach product to the pullback device for pullback of the product by the drill string, and each of the arms including a second end opposite the first end, the second end attached to the collar.