Shorting clip for air bag inflator

• US 6,257,910 B1
• Filed: 07/02/1999
• Issued: 07/10/2001
• Est. Priority Date: 07/02/1999
• Status: Expired due to Term

• Current Assignee: TRW Inc. (Northrop Grumman Corporation)
• Original Assignee: TRW Inc. (Northrop Grumman Corporation)
• Inventors: Mramor, Vincent J.
• Primary Examiner(s): Bradley, Paula
• Assistant Examiner(s): NGUYEN, TRUC T
• Application Number:
  US09/347,505
• Time in Patent Office: 739 Days
• Field of Search: 439/188, 439/557, 439/567, 439/507, 200/51.1
• US Class Current: 439/188
• CPC Class Codes: F42B 3/182 having shunting means F42B3/185 takes precedence; details of shunting devices H01R13/7032
• CPC Class Codes: H01R 13/7032 making use of a separate bridging element directly cooperating with the terminals
• CPC Class Codes: H01R 2201/26 for vehicles

Abstract

An apparatus (60) for association with an electrical connector (68) includes an igniter (62) actuatable to initiate actuation of an inflator (10) in response to receiving an electrical signal. The igniter has a pair of electrical terminals (64, 66) for electrical contact with the electrical connector (68). The apparatus (60) includes a retainer (70) for supporting the igniter (62) adjacent the inflator (10). The retainer (70) has a recess (94). The apparatus (60) includes a shorting clip (100) for maintaining the electrical connector (68) in electrical contact with the electrical terminals (64, 66) and for establishing a short circuit between the electrical terminals when the electrical connector is not in electrical contact with the electrical terminals. The shorting clip (100) includes a main body portion (102) and at least one locking foot (140, 150) movable relative to the main body portion and into the recess (94) in the retainer (70) for attaching the shorting clip to the igniter (62).

Claims

1. An apparatus for association with an electrical connector and for, when actuated, initiating actuation of an inflator for discharging inflation fluid to inflate a vehicle occupant protection device such as an air bag, said apparatus comprising:

an igniter actuatable to initiate actuation of the inflator in response to receiving an electrical signal, said igniter having a pair of electrical terminals for electrical contact with the electrical connector to receive the electrical signal from the electrical connector;

a retainer for supporting said igniter adjacent the inflator, said retainer having at least one recess; and

a shorting clip for maintaining the electrical connector in electrical contact with said electrical terminals and for establishing a short circuit between said electrical terminals of said igniter when said electrical connector is not in electrical contact with said electrical terminals;

said shorting clip including a main body portion a first locking foot freely movable relative to said main body portion, and a second locking foot freely movable relative to said main body portion and into said at least one recess in said retainer for attaching said shorting clip to said igniter;

said main body portion of said shorting clip having a generally cylindrical outer periphery, said first and second locking feet projecting from said main body portion of said shorting clip at locations spaced circumferentially about said outer periphery of said shorting clip.

2. An apparatus as set forth in claim 1 wherein said at least one recess in said retainer is a single circular groove receiving both said first and second locking feet.

3. An apparatus as set forth in claim 2 wherein said locking feet are located diametrically opposite each other on said main body portion of said shorting clip.

4. An apparatus as set forth in claim 1 wherein said first and second locking feet are connected with each other only through said main body portion of said shorting clip, said first locking foot having a terminal end portion that is freely movable relative to a terminal end portion of said second locking foot.

5. An apparatus for association with an electrical connector and for, when actuated, initiating actuation of an inflator for discharging inflation fluid to inflate a vehicle occupant protection device such as an air bag, said apparatus comprising:

an igniter actuatable to initiate actuation of the inflator in response to receiving an electrical signal, said igniter having a pair of electrical terminals for electrical contact with the electrical connector to receive the electrical signal from the electrical connector;

a retainer for supporting said igniter adjacent the inflator, said retainer having at least one recess; and

a shorting clip for maintaining the electrical connector in electrical contact with said electrical terminals and for establishing a short circuit between said electrical terminals of said igniter when said electrical connector is not in electrical contact with said electrical terminals;

said shorting clip including a main body portion, a first locking foot freely movable relative to said main body portion, and a second locking foot freely movable relative to said main body portion and into said recess in said retainer for attaching said shorting clip to said igniter;

each one of said locking feet having a resilient base portion connected with said main body portion of said shorting clip and having a respective terminal end portion;

said first and second locking feet being connected with each other only through said main body portion of said shorting clip, said terminal end portion of said first locking foot being freely movable relative to said terminal end portion of said second locking foot.

6. An apparatus as set forth in claim 5 wherein said main body portion of said shorting clip has a generally cylindrical outer periphery, said first and second locking feet projecting from said main body portion of said shorting clip at locations spaced circumferentially about said outer periphery of said shorting clip.

7. An apparatus as set forth in claim 6 therein said at least one recess in said retainer is a single circular groove receiving both said first and second locking feet.

8. An apparatus as set forth in claim 7 wherein said locking feet are located diametrically opposite each other on said main body portion of said shorting clip.