Dead man control arrangement
AssigneeBlastone Technology Pty Ltd
InventorsGraeme Thomas, Rick Gooden, Matthew Rowland, Trevor Seewald
Life of this patent
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Abstract
A nozzle arrangement for use in expelling pressurized fluid includes a dead man control. The dead man control has a manually operable control part movable between a non-operating position, which prevents operation of the nozzle arrangement, and an operating position, and biased towards the non-operating position. The manually operable control part is pivotably coupled relative to a nozzle holder of the nozzle arrangement, which extends away from the pivotal coupling substantially towards a distal end of a nozzle part of the nozzle arrangement. The manually operable control part includes a handle part which in the operating position is substantially against and aligned with the nozzle part.
Claims20
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.
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 selector is mounted on or in the control body.
Dependencies are inferred from the claim text.