Inflator connectors for inflatable personal restraints and associated systems and methods

• US 8,439,398 B2
• Filed: 07/29/2011
• Issued: 05/14/2013
• Est. Priority Date: 07/29/2011
• Status: Expired due to Fees

• Current Assignee: AmSafe, Inc. (Transdigm Group Incorporated)
• Original Assignee: AmSafe, Inc. (Transdigm Group Incorporated)
• Inventors: Baca, Andre
• Primary Examiner(s): Fleming, Faye M.
• Application Number:
  US13/194,411
• Publication Number:
  US 20130026743A1
• Time in Patent Office: 655 Days
• Field of Search: 280/733
• US Class Current: 280/733
• CPC Class Codes: B60R 2021/0093 Aircraft
• CPC Class Codes: B60R 2021/0095 Boats
• CPC Class Codes: B60R 2021/2612 Gas guiding means, e.g. ducts
• CPC Class Codes: B60R 21/18 the inflatable member formed as a belt or harness or combined with a belt or harness arrangement
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10
• CPC Class Codes: F16L 27/093 of the "banjo" type, i.e. pivoting right-angle couplings
• CPC Class Codes: Y10T 137/0402 Cleaning, repairing, or assembling

Abstract

Inflator connectors for inflatable personal restraints and associated systems and methods are described herein. An inflator connector configured in accordance with an embodiment of the present technology, for example, can include a body having an attachment portion and a sleeve portion and a coupling rotatably received in the sleeve portion. The attachment portion of the body can include a first bore having a first engagement feature positioned toward a first opening for operably engaging at least one of an inflator and a gas tube. The sleeve portion can include a second bore in fluid communication with the first bore. The coupling can include a second engagement feature positioned toward a second opening for operably engaging the other of the inflator and the gas tube.

Claims

1. A connector for operably coupling an airbag inflator to a gas tube, the connector comprising:

a body having an attachment portion and a sleeve portion, the attachment portion having a first bore, the sleeve portion having a second bore in fluid communication with the first bore, wherein the first bore includes a first engagement feature positioned toward a first opening for operably engaging at least one of the inflator and the gas tube;

a coupling rotatably received in the second bore of the sleeve portion, the coupling having a second engagement feature positioned toward a second opening for operably engaging the other of the inflator and the gas tube, wherein the second opening is in fluid communication with the first opening, and wherein the coupling includes a first groove proximate to a first end portion of the coupling and a second groove proximate to a second end portion of the coupling; and

a first sealing ring received in the first groove and a second sealing ring received in the second groove, wherein the first and second sealing rings are configured to form a seal between the sleeve portion and the coupling.

2. The connector of claim 1 wherein at least one of the first engagement feature and the second engagement feature includes at least one of threads and a barbed boss.

3. The connector of claim 1 wherein:

the first engagement feature is configured to releasably engage a gas outlet of the inflator; and

the second engagement feature is configured to releasably engage the gas tube.

4. The connector of claim 1 wherein the coupling includes at least one through-hole extending through a sidewall of the coupling, and wherein the first bore and the through-hole are in fluid communication with one another.

5. The connector of claim 1 wherein:

the first engagement feature includes threads;

the second engagement feature includes a barbed boss; and

the coupling includes a plurality of through-holes positioned around a sidewall of the coupling between the first and second grooves, wherein the through-holes and the first bore are in fluid communication with one another.

6. A connector for operably coupling an airbag inflator to a gas tube, the connector comprising:

a body having an attachment portion and a sleeve portion, the attachment portion having a first bore, the sleeve portion having a second bore in fluid communication with the first bore, wherein the first bore includes a first engagement feature positioned toward a first opening for operably engaging at least one of the inflator and the gas tube;

a coupling rotatably received in the second bore of the sleeve portion, the coupling having a second engagement feature positioned toward a second opening for operably engaging the other of the inflator and the gas tube, wherein the second opening is in fluid communication with the first opening, and wherein the coupling includes an end portion having a groove, wherein the end portion protrudes beyond the second bore; and

a retainer clip mated with the groove.

7. The connector of claim 6 wherein the coupling further includes a grip feature configured to releasably engage a tool for rotating the coupling.

8. An airbag inflator system, comprising:

an inflator having a gas outlet, wherein the gas outlet includes inflator threads;

a gas tube having an inlet, wherein the gas tube includes tube threads; and

an inflator connector comprising a coupling rotatably coupled to a body, wherein the body is configured to connect to at least one of the inflator outlet and the gas tube inlet, wherein the coupling is configured to connect to the other of the inflator gas outlet and the gas tube inlet, wherein the body includes first threads at an inlet opening of the body, the first threads being configured to engage the inflator threads, and wherein the coupling includes second threads at an outlet opening of the coupling, the second threads being configured to engage the tube threads.

9. An airbag inflator system, comprising:

an inflator having a gas outlet;

a gas tube having an inlet; and

an inflator connector comprising a coupling rotatably coupled to a body, wherein the body is configured to connect to at least one of the inflator outlet and the gas tube inlet, wherein the coupling is configured to connect to the other of the inflator gas outlet and the gas tube inlet, and wherein the coupling includes at least one through-hole positioned around a sidewall of the coupling.

10. The airbag inflator system of claim 9 wherein the inflator connector further comprises a sealing feature configured to form a seal between the body and the coupling.

11. The airbag inflator system of claim 9 wherein:

the body includes a first bore and a second bore in fluid connection with one another;

the coupling is received in the second bore, the coupling having an end portion protruding beyond the second bore, wherein the end portion includes a groove; and

the inflator connector further includes a retainer clip seated in the groove.

12. The airbag inflator system of claim 9 wherein the inflator connector further comprises a grip feature configured to releasably couple to a tool that rotates the coupling.

13. An airbag inflator system, comprising:

an inflator having a gas outlet;

a gas tube having an inlet; and

an inflator connector comprising a coupling rotatably coupled to a body, wherein the body is configured to connect to at least one of the inflator outlet and the gas tube inlet, wherein the coupling is configured to connect to the other of the inflator gas outlet and the gas tube inlet, and wherein the coupling includes a barbed boss configured to connect to at least one of the inflator outlet and the gas tube inlet.

14. A method of manufacturing an inflator connector, the method comprising:

forming a body having a first bore in fluid communication with a second bore, the first bore having a first opening;

forming a first engagement feature toward the first opening;

forming a coupling having a second opening;

forming a second engagement feature toward the second opening;

inserting the coupling into the second bore, the coupling being configured to rotate about a longitudinal axis of the second bore, wherein the second opening is in fluid communication with the first opening; and

forming at least one through-hole around a sidewall of the coupling, wherein the through-hole is in fluid communication with the first opening.

15. The method of claim 14 wherein:

inserting the coupling in the second bore further comprises projecting an end portion of the coupling beyond the second bore; and

the method further includes mating a retainer clip with a groove in the end portion of the coupling.

16. The method of claim 14, further comprising forming a seal between the body and the coupling.

17. The method of claim 14 wherein forming the coupling includes forming a grip feature on an end portion of the coupling, the grip feature being configured to releasably engage a tool that rotates the coupling.

18. A method of manufacturing an inflator connector, the method comprising:

forming a body having a first bore in fluid communication with a second bore, the first bore having a first opening;

forming a first engagement feature toward the first opening;

forming a coupling having a second opening;

forming a second engagement feature toward the second opening;

inserting the coupling into the second bore, the coupling being configured to rotate about a longitudinal axis of the second bore, wherein the second opening is in fluid communication with the first opening;

forming the first engagement feature comprises forming first threads in an internal sidewall of the first bore, wherein the first threads are configured to engage threads on a gas outlet of an inflator; and

forming the second engagement feature comprises forming second threads in an internal sidewall of the coupling, wherein the second threads are configured to engage threads on an end fitting of a gas tube.

19. A method of manufacturing an inflator connector, the method comprising:

forming a body having a first bore in fluid communication with a second bore, the first bore having a first opening;

forming a first engagement feature toward the first opening;

forming a coupling having a second opening;

forming a second engagement feature toward the second opening, wherein forming at least one of the first and second engagement features comprises forming a barbed boss configured to engage at least one of a gas outlet of an inflator and an end fitting of a gas tube; and

inserting the coupling into the second bore, the coupling being configured to rotate about a longitudinal axis of the second bore, wherein the second opening is in fluid communication with the first opening.