US4372192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
First motion detector
Assignee: United States Department of the Army
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Filing: 1980-12-22
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Granted: 1983-02-08
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Expires: 2000-12-22
Abstract
Abstract An electromagnet sensing device which detects the first axial motion of a ssile relative to its launcher to provide timing information and indicate when the missile first moves axially.
Inventors
- 👤 Jeffrey A. Lienau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:44
CPC Classifications
G; G01; G01P; G01P13/00; F; F41; F41F; F41F3/00; F41F3/04; G01P3/00; G01P3/42; G01P3/50; G01P3/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A first motion detector device comprising a rocket mounted to launching means, said rocket having magnetic means thereon that produces a magnetic field, detector means mounted to said launching means for said rocket and being positioned in a forward portion of said magnetic field, said detector means being made of such a material and having electronics connected thereto to produce an output which indicates actual movement of said rocket relative to said launching means as said rocket moves from said launching means.
Claim 2
Dependent Claim
82 words
A first motion detector device comprising a rocket mounted to launching means, said rocket having magnetic means thereon that produces a magnetic field, detector means mounted to said launching means for said rocket and being positioned in a forward portion of said magnetic field, said detector means being made of such a material and having electronics connected thereto to produce an output which indicates actual movement of said rocket relative to said launching means as said rocket moves from said launching means.
Claim 3
Dependent Claim
55 words
A first motion detector device as set forth in claim 1, wherein said detector means includes a magnetic sensor that has a D.C. voltage applied thereacross to cause an output to be produced that is proportional in magnitude to the flux direction applied by the magnetic field produced by said magnetic means on said rocket.
Claim 4
Dependent Claim
55 words
A first motion detector device as set forth in claim 2, wherein said output from said detector means is connected to an amplifier which amplifies said output and delivers an amplified signal to a zero crossing detector and produces an output which is delivered to a digital pulse generator which produces a digital pulse output.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |