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US4448228A
Expired / Lapsed
US
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Air bag system having a branched joint
Assignee: Aisin Corp
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Filing: 1981-12-29
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Granted: 1984-05-15
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Expires: 2001-12-29
Abstract
Abstract An air bag system includes a plurality of inflatable air bags; an air source for supplying air to said air bags, a branched joint for distributing the air from said air source to said air bags; and check valves, each being provided between said joint and said air bags for allowing the air to flow to air bags from said joint, and openings of ports of said joint to branch pipes being changed in order of inflation of air bags.
Inventors
- 👤 Nobuyuki Hashimoto
- 👤 Takemi Hattori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:41
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/90; B60N2/914; A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/082; A47C27/10; A47C4/00; A47C4/54; A47C7/00; A47C7/36; A47C7/40; A47C7/46; A47C7/467
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
An air bag system for a back rest comprising a plurality of inflatable air bags; an air source for supplying air to said air bags, a branched joint for distributing the air from said air source to said air bags; check valves, each being provided between said joint and said air bags for allowing the air to flow to the air bags; and openings of ports of said joint to branch pipes being different in cross-sectional area to regulate the order of inflation of the air bags; the area of the opening of the port for the at least one of the air bags against which the waist of an occupant rests being arranged such that said one of the air bags is fully inflated first.
Claim 2
Dependent Claim
126 words
An air bag system for a back rest comprising a plurality of inflatable air bags; an air source for supplying air to said air bags, a branched joint for distributing the air from said air source to said air bags; check valves, each being provided between said joint and said air bags for allowing the air to flow to the air bags; and openings of ports of said joint to branch pipes being different in cross-sectional area to regulate the order of inflation of the air bags; the area of the opening of the port for the at least one of the air bags against which the waist of an occupant rests being arranged such that said one of the air bags is fully inflated first.
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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |