Rapid gas-fill apparatus and method

• US 5,782,486 A
• Filed: 11/17/1995
• Issued: 07/21/1998
• Est. Priority Date: 07/16/1993
• Status: Expired due to Fees

• Current Assignee: Carol E. Lewis, New Lenox Industries, Inc.
• Original Assignee: New Lenox Industries, Inc.
• Inventors: Shepherd, Benjamin Gregory, Barnes, F. Michael
• Primary Examiner(s): English, Peter C.
• Application Number:
  US08/560,573
• Time in Patent Office: 977 Days
• Field of Search: 280/737, 280/736, 280/741, 137/68.13, 137/68.19, 137/68.23, 137/68.25, 222/3, 222/5
• US Class Current: 280/737
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/268 detecting or alerting means responsive to the installation of the child seats in the vehicle
• CPC Class Codes: B60N 2/2839 having a front guard or barrier
• CPC Class Codes: B60N 2/286 forward facing B60N2/2866 takes precedence
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/2074 in head rests
• CPC Class Codes: B60R 2022/4816 for sensing locking of buckle
• CPC Class Codes: B60R 21/01556 Child-seat detection systems
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 21/2072 in children's seats
• CPC Class Codes: B60R 21/268 using instantaneous release of stored pressurised gas B60R21/26005 takes precedence
• CPC Class Codes: Y10T 137/1647 Explosive actuation

Abstract

A rapid gas/fluid deploying apparatus for use in a variety of inflating and dispersing applications includes a superatmospheric pressure compressed gas/fluid storage container which is equipped with an explosively rupturable membrane surface element and an explosively rupturing micro miniature charge assembly. When the explosive charge is detonated a pressure equilibrating force compels the gas or fluid into/onto a receiving volume or target.

Claims

1. A gas flow apparatus comprising:

a gas receiving structure defining a first interior volume for receiving pressurized gas;

a gas storing container defining a second interior volume, said gas storing container further defining a fluid passageway between said second interior volume and said first interior volume of said gas receiving structure;

an explosively rupturable frangible membrane secured to said gas storing container, said frangible membrane being disposed between said first and second interior volumes;

a compressed gas disposed within said gas storing container and having said second interior volume; and

an actuatable micro miniature explosive charge assembly having an explosive charge having a shape defined by a plurality of dimensions, each of said plurality of dimensions being less than one centimeter, said explosive charge assembly being secured to said explosively rupturable frangible membrane by an electrically conductive epoxy for establishment of endothermic gas flow communication between said first interior volume and said second interior volume upon actuation of said explosive charge assembly by explosively rupturing said frangible membrane to substantially fully open said fluid passageway establishing immediate flow of said compressed gas from said second interior volume to said first interior volume, said rupturing occurring without releasing said frangible membrane from said gas storing container.

2. The apparatus according to claim 1 wherein, said frangible membrane is mechanically scored to enhance explosive rupturability thereof.

3. The apparatus according to claim 1 wherein, said compressed gas is an inert gas.

4. The apparatus according to claim 3 wherein, said inert gas is helium.

5. The apparatus according to claim 1 wherein, the gas receiving structure comprises a compacted, pressurized gas-expandable structure.

6. The apparatus according to claim 5 wherein, said compacted, pressurized gas-expandable structure comprises an inflatable bag.

7. The apparatus according to claim 1 wherein, said explosive charge assembly comprises a housing containing a primer charge, a main charge, a primer material in contact with said primer charge, a resistance element in contact with said primer material, and a contact pin in contact with said resistance element and extending exteriorly of said housing.

8. The apparatus according to claim 7 wherein, said primer material comprises lead styphnate, said primer charge comprises lead azide, and said main charge comprises cyclotetramethylene tetranitroamine (HMX).

9. A gas dispersing apparatus comprising:

a container enclosing an interior volume, said container defining a fluid passageway extending between said interior volume and an exterior environment, said passageway being closed by an explosively rupturable frangible member;

a compressed fluid disposed within said container and having said interior volume;

an actuatable micro miniature explosive charge assembly having an explosive charge having a shape defined by a plurality of dimensions, each of said plurality of dimensions being less than one centimeter, said explosive charge assembly being secured to said explosively rupturable frangible member by an electrically conductive epoxy for establishment of immediate fluid flow communication from said interior volume to said exterior environment upon actuation of said explosive charge assembly by explosively rupturing said frangible member to substantially fully open said fluid passageway establishing immediate flow of said compressed fluid from said interior volume; and

an actuator for detonating said micro miniature explosive charge assembly.

10. The apparatus according to claim 9 wherein, said frangible member is mechanically scored to enhance explosive rupturability thereof.

11. The apparatus according to claim 9 wherein, said explosive charge assembly comprises a housing containing a primer charge, a main charge, a primer material in contact with said primer charge, a resistance element in contact with said primer material, and a contact pin in contact with said resistance element and extending exteriorly of said housing.

12. The apparatus according to claim 11 wherein, said primer material comprises lead styphnate, the primer charge comprises lead azide, and said main charge comprises cyclotetramethylene tetranitroamine (HMX).