US3698102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerged periscope simulator
Assignee: United States Department of the Navy
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Filing: 1971-05-28
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Granted: 1972-10-17
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Expires: 1991-05-28
Abstract
Abstract An improvement to a periscope view simulator training device for training periscope operators. Comprises means for simulating the changing view obtained through a periscope when the periscope head is ascending from the darker ocean depths through lighter greenish colored waters near the surface and on to the daylight brightness of an above the surface position. Also simulates the view obtained when the periscope head descends from an above the ocean surface position down through the near-surface waters to the depths.
Inventors
- 👤 Carl R Driskell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:52
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
In a periscope view simulator having a periscope, means for simulating a surface view of the sea through said periscope and periscope height control means, the improvement comprising: means for generating a variable brightness depth view through said periscope, means for varying said depth view connected to said periscope height control means, means for substituting said variable depth view for said surface view, wave action simulating means for simulating the effect of waves washing over said periscope when surfaced, said means for substituting said variable depth view for said surface view comprising a movable mirror, solenoid means connected to said mirror for moving said mirror to a first position and to a second position on command, said means for varying said depth view being connected to said periscope height control means to increase the brightness of said varying depth view as said periscope height is increased, said mirror substituting said variable depth view for said surface view when in a first position.
Claim 2
Dependent Claim
162 words
In a periscope view simulator having a periscope, means for simulating a surface view of the sea through said periscope and periscope height control means, the improvement comprising: means for generating a variable brightness depth view through said periscope, means for varying said depth view connected to said periscope height control means, means for substituting said variable depth view for said surface view, wave action simulating means for simulating the effect of waves washing over said periscope when surfaced, said means for substituting said variable depth view for said surface view comprising a movable mirror, solenoid means connected to said mirror for moving said mirror to a first position and to a second position on command, said means for varying said depth view being connected to said periscope height control means to increase the brightness of said varying depth view as said periscope height is increased, said mirror substituting said variable depth view for said surface view when in a first position.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1, said means for generating a variable brightness depth view including a greenish transparent cube, a variable brightness lamp positioned to illuminate said cube, said mirror being arranged to bend the optical path of said periscope to view said cube when in said first position.
Claim 4
Dependent Claim
125 words
The apparatus of claim 2, said periscope height control comprising a first potentiometer, means connecting the output voltage of said first potentiometer to said variable lamp to increase the brightness of said lamp as said periscope height is increased, a surface heiGht control comprising a second potentiometer, a comparator, first switch means connecting the output voltage of said first potentiometer to a first input of said potentiometer, second switch means connecting the output voltage of said second potentiometer to a second input of said comparator, a transistor connected to control said solenoid means, the output voltage of said comparator being connected to control said transistor, said comparator developing an output voltage when said first potentiometer output voltage is greater than said second potentiometer output voltage.
Claim 5
Dependent Claim
83 words
The apparatus of claim 3, said means for simulating wave action including a low frequency oscillator, a sea state control comprising a third potentiometer, a capacitor connecting the output voltage of said third potentiometer to said second switch, and means connecting the output voltage of said oscillator to supply said third potentiometer, whereby the varying output voltage is adjusted in said third potentiometer and supplied to said second input of said comparator to provide an adjustable varying voltage for generating said wave action.
Claim 6
Dependent Claim
52 words
The apparatus of claim 4, said first and second switches having a first and a second position, said switches when in said second position connecting computer means to said first and second inputs of said comparator whereby control of wave action and depth view simulation may be effected by said computer means.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |