US3715985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact switch
Assignee: Individual
•
Filing: 1970-06-09
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Granted: 1973-02-13
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Expires: 1990-06-09
Abstract
Abstract A nose impact switch for a projectile comprising a plunger, an insulator, a cover and a O-ring assembled such that when a projectile impacts, the plunger is moved back against a slender rod, constituting a switch function and thereby conducting electrical energy through the plunger to the rod and to a receptor.
Inventors
- 👤 M Fugelso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:12
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/06; F42C19/07; H; H01; H01H; H01H35/00; H01H35/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
An impact switch assemBly adapted for use in a projectile comprising: an insulating member adaped to be affixed to the forward portion of a projectile; plunger means forward of said insulating member and fixed in position with respect thereto; conducting means connecting said plunger means and the projectile; said conducting means comprising a conductive coating on the exterior of said insulating member; another conducting means centrally located in said insulating means and spaced from said plunger means such that when said projectile impacts, the plunger means is moved rearwardly with respect to said another conducting means sufficient to contact said another means and form a complete circuit for the flow of electrical energy; and a deformable insulating O-ring spacer means between said plunger means and said another conductor means.
Claim 2
Dependent Claim
129 words
An impact switch assemBly adapted for use in a projectile comprising: an insulating member adaped to be affixed to the forward portion of a projectile; plunger means forward of said insulating member and fixed in position with respect thereto; conducting means connecting said plunger means and the projectile; said conducting means comprising a conductive coating on the exterior of said insulating member; another conducting means centrally located in said insulating means and spaced from said plunger means such that when said projectile impacts, the plunger means is moved rearwardly with respect to said another conducting means sufficient to contact said another means and form a complete circuit for the flow of electrical energy; and a deformable insulating O-ring spacer means between said plunger means and said another conductor means.
Claim 3
Dependent Claim
129 words
An impact switch assemBly adapted for use in a projectile comprising: an insulating member adaped to be affixed to the forward portion of a projectile; plunger means forward of said insulating member and fixed in position with respect thereto; conducting means connecting said plunger means and the projectile; said conducting means comprising a conductive coating on the exterior of said insulating member; another conducting means centrally located in said insulating means and spaced from said plunger means such that when said projectile impacts, the plunger means is moved rearwardly with respect to said another conducting means sufficient to contact said another means and form a complete circuit for the flow of electrical energy; and a deformable insulating O-ring spacer means between said plunger means and said another conductor means.
Claim 4
Dependent Claim
129 words
An impact switch assemBly adapted for use in a projectile comprising: an insulating member adaped to be affixed to the forward portion of a projectile; plunger means forward of said insulating member and fixed in position with respect thereto; conducting means connecting said plunger means and the projectile; said conducting means comprising a conductive coating on the exterior of said insulating member; another conducting means centrally located in said insulating means and spaced from said plunger means such that when said projectile impacts, the plunger means is moved rearwardly with respect to said another conducting means sufficient to contact said another means and form a complete circuit for the flow of electrical energy; and a deformable insulating O-ring spacer means between said plunger means and said another conductor means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |