Detonator including a multidimensional circuit board

Patent metadata

Field	Value
Publication number	US-12359896-B2
Application number	US-202318358483-A
Country	US
Kind code	B2
Filing date	Jul 25, 2023
Priority date	Jul 29, 2022
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

A detonator includes a detonating capsule, a detonator head storing an electronic circuit board, and a retaining arm configured to fix the detonating capsule to the detonator head. The electronic circuit board is a multidimensional circuit board that extends from the detonator head into engagement with the detonating capsule.

First claim

What is claimed is:

1. A detonator, comprising:
a housing;
a first printed circuit board supported in the housing;
an appendage extending from the housing and defining a channel, the appendage having a tab; and
a detonating capsule configured for receipt in the channel of the appendage, wherein the detonating capsule defines an opening configured to be selectively engaged by the tab to retain the detonating capsule in the channel of the appendage;
wherein the first printed circuit board includes:
a main body portion; and
a bent portion extending from the main body portion, the bent portion configured to detachably couple to the detonating capsule and is received in the channel of the appendage.

2. The detonator according to claim 1 , wherein the appendage includes:
a body portion that defines the channel; and
an arm movably coupled to the body portion, the tab extending from a distal end portion of the arm and into the channel.

3. The detonator according to claim 2 , wherein the arm has a proximal end portion formed with the body portion and configured to flex relative to body portion between a first position, in which the detonating capsule is receivable into the channel, and a second position, in which the tab is received in the opening of the detonating capsule.

4. The detonator according to claim 2 , wherein the body portion and the arm collectively define a gap therebetween, the gap being configured to allow a fluid to enter the opening of the detonating capsule to disable the detonator.

5. The detonator according to claim 4 , wherein the detonating capsule includes:
an outer shell that defines the opening therein; and
a fuse head received in the outer shell, the fuse head being in fluid communication with an external environment via the opening.

6. The detonator according to claim 1 , further comprising a second printed circuit board having a first end portion coupled to or extending from the first printed circuit board and being received within the housing, and a second end portion configured to detachably couple to the detonating capsule and being received in the channel of the appendage.

7. The detonator according to claim 6 , wherein the first and second printed circuit boards mare perpendicular to one another.

8. The detonator according to claim 1 , wherein the housing defines a longitudinal axis, and the appendage defines longitudinal axis that is parallel with the longitudinal axis of the housing.

9. The detonator according to claim 8 , wherein the appendage is coupled to a bottom portion of the housing.

10. A detonator, comprising:
a housing defining an inner chamber;
a printed circuit board supported in the inner chamber of the housing;
an appendage including:
a body portion extending from the housing and defining a longitudinally-extending channel;
a retaining arm having a proximal end portion movably coupled to the body portion; and
a tab extending from a free, distal end portion of the retaining arm; and

a detonating capsule configured for receipt in the channel of the body portion, wherein the detonating capsule defines an opening configured to be selectively engaged by the tab to retain the detonating capsule in the channel of the body portion.

11. The detonator according to claim 10 , wherein the proximal end portion of the retaining arm is formed with the body portion and is configured to flex relative to the body portion between a first position, in which the detonating capsule is receivable into the channel, and a second position, in which the tab is received in the opening of the detonating capsule.

12. The detonator according to claim 11 , wherein the body portion and the retaining arm define a gap therebetween configured to allow a fluid to enter the opening of the detonating capsule.

13. The detonator according to claim 12 , wherein the detonating capsule includes:
an outer shell that defines the opening therein; and
a fuse head received in the outer shell, the fuse head being in fluid communication with an external environment via the opening.

14. The detonator according to claim 10 , wherein the detonating capsule is offset from the housing.

15. A detonator, comprising:
a housing;
a printed circuit board including:
a first portion supported in the housing; and
a second portion extending from the first portion;

a body portion extending from the housing and defining a longitudinally-extending channel configured for receipt of a detonating capsule; and
a retaining arm having a proximal end portion movably coupled to the body portion, and a free, distal end portion having a tab, wherein the tab is configured for receipt in an opening of a detonating capsule.

16. The detonator according to claim 15 , wherein the second portion of the printed circuit board extends perpendicularly from the first portion of the printed circuit board.

17. The detonator according to claim 15 , wherein the second portion of the printed circuit board is formed with or coupled to the first portion of the printed circuit board.

18. The detonator according to claim 15 , wherein the proximal end portion of the retaining arm is formed with the body portion and configured to flex relative to the body portion between a first position, in which the tab is positioned outside of the channel and a second position, in which the tab extends into the channel.

19. The detonator according to claim 15 , wherein the body portion and the retaining arm define a gap therebetween configured to allow a fluid to enter the channel.

Assignees

• DynaEnergetics Europe GmbH

Inventors

• Eitschberger Christian
• Thieltges Sascha
• Zemla Andreas Robert

Classifications

• F42B3/192 Primary

  designed for neutralisation on contact with water · CPC title

• F42B3/121 Primary

  Initiators with incorporated integrated circuit · CPC title