Patent US3934984A successfully refreshed from Google Patents.
US3934984A
Expired / Lapsed
US
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Gas generator
Assignee: Olin Corp
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Filing: 1975-01-10
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Granted: 1976-01-27
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Expires: 1995-01-10
Abstract
Abstract A gas generator for an air bag or the like including an ignitor, a propellant, an outlet, and a cooling chamber positioned between the propellant and the outlet. The cooling chamber is filled with hollow balls with surface openings which are an effective heat sink and a trap for undesirable particulate matter so that the gas introduced into the air bag is sufficiently cool and clean to be vented into the passenger compartment of a motor vehicle.
Inventors
- 👤 Darrell W. Marlow
- 👤 Brady L. Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:06
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/264; B60R21/2644; B01; B01J; B01J7/00; F; F42; F42B; F42B3/00; F42B3/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
82 words
A gas generator for an inflatable occupant restraint comprising a housing, a propellant chamber in said housing, a gas generating charge in said chamber, means for igniting said charge in response to a predetermined signal, an outlet in said housing for the expulsion of gases formed upon igniting and burning of said charge, a cooling chamber formed between said propellant chamber and said outlet, said cooling chamber including a plurality of hollow, metallic balls each having an opening through the surface thereof.
Claim 2
Dependent Claim
82 words
A gas generator for an inflatable occupant restraint comprising a housing, a propellant chamber in said housing, a gas generating charge in said chamber, means for igniting said charge in response to a predetermined signal, an outlet in said housing for the expulsion of gases formed upon igniting and burning of said charge, a cooling chamber formed between said propellant chamber and said outlet, said cooling chamber including a plurality of hollow, metallic balls each having an opening through the surface thereof.
Claim 3
Dependent Claim
36 words
The generator of claim 1 in which said balls are spherical and hollow with a slit through the surface to provide maximum exposed surface for heat absorption and a trap for solid particles in said gases.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |