Programmable electronic delay fuse
AssigneeThe Commonwealth of Australia
InventorsKenneth N. Jarrott, Eric J. Parker
Life of this patent
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Abstract
A programmable electronic delay fuse for initiating a firing after a programmed and accurate delay time has been chosen, comprising a fire control unit (FCU), a programming unit (PU) to program and test the fire control unit (FCU), and optical coupling interface means (1) on each unit to electrically interconnect firing and status means (3) on the fire control unit (FCU) with command and test means on the programming unit.
Claims10
A programmable electronic delay fuse for initiating a firing after a programmed and accurate delay time has been chosen, characterised by:
- (a) a fire control unit (FCU) with means to actuate firing means such as a pyrotechnic actuator or an electric detonator,
- (b) a programming unit (PU) separate therefrom having means to program and test the said fire control unit (FCU), and
- (c) optical coupling interface means on the said fire control unit (FU) and the said programming unit (PU) coupled to firing and status means on the said fire control unit (FCU) with command and test means on the said programming unit.
A programmable electronic delay fuse for initiating a firing after a programmed and accurate delay time has been chosen, comprising as separate units a fire control unit (FCU) and a programming unit (PU) therefor, the said fire control unit (FU) being arranged to actuate firing means, the said programming unit (PU) being arranged to set time delays (A B) and to assist testing of the fire control unit (FCU), the said fire control unit (FCU) comprising a safety timer (5), multiposition switch means (6) to select delay programming, a programmable timer (2) to effect test and arm activity and including status indicators for "SAFE TO ARM" and "TIME UP", the said programming unit (PU) comprising means such as a keyboard (30) for entering instructions on the said programming unit (PU), a power source (33), and a control processor (31) and display (32), and the said fire control unit (FCU) and the said programming unit (PU) having coupling interface means (1,35) between them whereby a single programming unit (PU) can be reused to test and set a series of fire control units (FCU).
Dependencies are inferred from the claim text.