US 12,435,748 B2
Nut arrangement, rock bolt and driver apparatus
Martin Nare Masitise, Sandton (ZA)
Assigned to Mohlalefi (Pty) Ltd., Sandton (ZA)
Appl. No. 17/922,717
Filed by Mohlalefi (Pty) Ltd., Sandton (ZA)
PCT Filed Apr. 30, 2021, PCT No. PCT/IB2021/053631
§ 371(c)(1), (2) Date Nov. 1, 2022,
PCT Pub. No. WO2021/220240, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 2006483 (GB), filed on May 1, 2020; and application No. 2020/07430 (ZA), filed on Nov. 30, 2020.
Prior Publication US 2023/0358265 A1, Nov. 9, 2023
Int. Cl. F16B 31/02 (2006.01); B25B 13/48 (2006.01); F16B 39/16 (2006.01)
CPC F16B 31/021 (2013.01) [F16B 39/16 (2013.01); B25B 13/488 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A driver apparatus, comprising:
an input formation associated with an input drive arrangement and through which an input moment or torque is supplied in use;
a first engagement formation associated with a first drive arrangement and provided for operatively engaging with a first object, the first engagement formation configured to transmit a first output moment in a first direction to the first object; and
a second engagement formation associated with a second drive arrangement and provided for operatively engaging with a second object, the second engagement formation configured to transmit a second output moment in a second direction to the second object,
wherein the first and second engagement formations are aligned axially on a common central axis and spaced axially,
wherein the first and second drive arrangements are driven by the input drive arrangement, so that interaction between the first, second and input drive arrangements causes the first and second engagement formations operatively to be driven in opposite directions, and
wherein the driver apparatus further comprises at least a first carrier body and at least a first side shaft, which is carried or supported by the carrier body and arranged spaced from and parallel to the central axis, the first side shaft arranged to be driven, in use, directly or indirectly through the input formation, wherein a moment is exerted on the first carrier body about the central axis, by the at least first side shaft when same is driven through the input formation, the driver apparatus further comprising at least a first planetary gear arrangement comprising an outer ring gear, a first sun gear, and at least a first planet gear carried by a first planet carrier body, the arrangement such that, in use, the first planet carrier body rotates relative to the first sun gear to cause the at least first planet gear to revolve around the first sun gear.