Patent US4198990A successfully refreshed from Google Patents.
US4198990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mouth mounted accelerometer pack
Assignee: Fanamation Inc
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Filing: 1979-03-05
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Granted: 1980-04-22
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Expires: 1999-03-05
Abstract
Abstract An apparatus, for measuring head accelerations of a test subject, having a mouthpiece which includes metal clips for securing the mouthpiece to the upper teeth of the test subject. Three accelerometers are secured to a mounting block which is attached to the mouthpiece. The three accelerometers have their active axis located along three orthogonal axis through the mounting block. The mounting block, the accelerometers and the accelerometer leads are embedded in an electrically insulating material.
Inventors
- 👤 Aubin M. Higgins
- 👤 James A. Fowler, Jr.
- 👤 Roger W. Mercer
- 👤 Gunter H. Kroh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; G; G01; G01P; G01P15/00; G01P15/18; G01P21/00; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B5/682; A61B5/683; A61B5/6838
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
An apparatus for measuring head accelerations of a test subject, comprising: a metal mouthpiece adapted to be secured to the upper teeth of the test subject; means, secured to said mouthpiece, supporting three accelerometers along three orthogonal axis; means, adapted to pass between the upper and lower teeth of the test subject, for transmitting signals from said accelerometers to at least one external signal processing circuit.
Claim 2
Independent Claim
66 words
An apparatus for measuring head accelerations of a test subject, comprising: a metal mouthpiece adapted to be secured to the upper teeth of the test subject; means, secured to said mouthpiece, supporting three accelerometers along three orthogonal axis; means, adapted to pass between the upper and lower teeth of the test subject, for transmitting signals from said accelerometers to at least one external signal processing circuit.
Claim 3
Dependent Claim
39 words
The device as recited in claim 1 wherein said means for supporting said accelerometers on said mouthpiece includes a synthetic mounting block removably secured to said mouthpiece; said accelerometers being mounted on three nonopposing surfaces of said mounting block.
Claim 4
Dependent Claim
45 words
The device as recited in claim 2 wherein said means for transmitting signals from said accelerometers to external signal processing circuits include leads connected to said accelerometers; means, coating said mounting block, said accelerometers and said leads for electrically insulating said leads and said accelerometers.
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) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |