IP Library Granted Patent US 7,681,500
Granted Patent B2
US 7,681,500 · App. 12/509,334 · Granted Mar 23, 2010

Method for logging a plurality of slave devices

Assignee: Special Devices, Incorporated
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Quick Facts
Patent No.
US 7,681,500
App. No.
12/509,334
Granted
Mar 23, 2010
Kind
B2
Abstract

A method for logging a plurality of slave devices is suggested, comprising the following steps: a) connecting a plurality of slave devices each having an identity and a pyrotechnic charge to an electrical conduit; b) after step a), connecting a logging device comprising a power supply, an electrical interface, and a memory and c)causing the logging device to communicate with each of the plurality of slave devices while the plurality of slave devices is simultaneously connected to the electrical conduit.

Claims (19)

1. A method for logging a plurality of slave devices, comprising the following steps:

a) connecting a plurality of slave devices, each having an identity and a pyrotechnic charge, to an electrical conduit;

b) after step a), connecting to said electrical conduit a logging device comprising a power supply, an electrical interface, and memory, said logging device being configured for two-way communication with said plurality of slave devices and being configured to operate only at a voltage that is incapable of causing detonation of said pyrotechnic charge; and

c) causing said logging device to communicate with each of said plurality of slave devices while said plurality of slave devices is simultaneously connected to said electrical conduit.

2. The method of claim 1 , wherein said logging device is also configured to communicate with a slave device individually connected directly to said electrical interface.

3. The method of claim 2 , wherein said slave devices are electronic detonators.

4. The method of claim 1 , wherein the communication of step c) comprises current modulation-based talkback from said slave devices.

5. The method of claim 4 , wherein said logging device includes means of or dynamically baselining said current modulation-based talkback from said slave devices.

6. The method of claim 5 , wherein said slave devices are electronic detonators.

7. The method of claim 4 , wherein said slave devices are electronic detonators.

8. The method of claim 1 , further comprising the step of causing the logging device to detect the presence of any undesired slave devices connected to said electrical conduit.

9. The method of claim 8 , wherein said slave devices are electronic detonators.

10. The method of claim 1 , wherein step c) includes causing said logging device to verify that the logged slave devices are connected to said electrical conduit.

11. The method of claim 10 , wherein said slave devices are electronic detonators.

12. The method of claim 1 , wherein said slave devices are simultaneously connectable to said electrical interface via a bus wire.

13. The method of claim 12 , wherein said slave devices are electronic detonators.

14. The method of claim 1 , wherein said electrical conduit is a branch or a row.

15. The method of claim 14 , wherein said slave devices are electronic detonators.

16. The method of claim 1 , wherein said slave devices are electronic detonators.

Assignments (5)
SECURITY AGREEMENT Recorded Sep 9, 2024
From: AUSTIN STAR DETONATOR COMPANY
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 068897/0547 →
RELEASE OF SECURITY INTEREST Recorded May 24, 2011
From: WAYZATA INVESTMENT PARTNERS, LLC
To: AUSTIN STAR DETONATOR COMPANY
Reel/Frame 026331/0172 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2011
From: SPECIAL DEVICES, INC.
To: AUSTIN STAR DETONATOR COMPANY
Reel/Frame 026333/0930 →
SECURITY AGREEMENT Recorded Jan 14, 2010
From: SPECIAL DEVICES, INCORPORATED
To: WAYZATA INVESTMENT PARTNERS LLC
Reel/Frame 023783/0305 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2009
From: TEOWEE, GIMTONG
To: SPECIAL DEVICES, INC.
Reel/Frame 023308/0747 →
Continuity (4)
Division 1133915900 · Jan 24, 2006
Continuation In Part 1073616600 · Dec 13, 2003
Continuation In Part 1061968700 · Jul 15, 2003
Related Publication 20090283005A1 · Nov 19, 2009