US 12,466,030 B2
Dead man control arrangement
Graeme Thomas, Queensland (AU); Rick Gooden, Queensland (AU); Matthew Rowland, Queensland (AU); and Trevor Seewald, Queensland (AU)
Assigned to BLASTONE TECHNOLOGY PTY LTD, Queensland (AU)
Appl. No. 17/626,597
Filed by BLASTONE TECHNOLOGY PTY LTD, Queensland (AU)
PCT Filed Jul. 11, 2020, PCT No. PCT/AU2020/050720
§ 371(c)(1), (2) Date Jan. 12, 2022,
PCT Pub. No. WO2021/007613, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 2019902480 (AU), filed on Jul. 12, 2019.
Prior Publication US 2022/0379435 A1, Dec. 1, 2022
Int. Cl. B24C 7/00 (2006.01); B24C 5/04 (2006.01); H01H 21/10 (2006.01)
CPC B24C 7/0053 (2013.01) [H01H 21/10 (2013.01); B24C 5/04 (2013.01); H01H 2300/026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dead man control arrangement for a blasting apparatus, the dead man control arrangement comprising:
a manually operable control part movable between a non-operating position, which prevents operation of the blasting apparatus, and an operating position, and biased towards the non-operating position;
a control signal governor which in response to the manually operable control part being in the operating position generates a first control signal for sending to a first remote controller arranged to allow a first operation of the blasting apparatus only upon receipt of the first control signal, and a second control signal for sending to a second remote controller of the blasting apparatus arranged to allow a second operation of the blasting apparatus only upon receipt of the second control signal,
wherein the dead man control arrangement further comprises a selector, provided at the manually operable control part, for selecting whether or not the second control signal is sent to the second remote controller; and
a control body,
wherein the control signal governor, and first and second outlets for the respective first and second control signals, are provided on or in the control body, and wherein the manually operable control part is mounted to the control body.