Patent US3845571A successfully refreshed from Google Patents.
US3845571A
Expired / Lapsed
US
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Simulator for ship navigation
Assignee: Individual
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Filing: 1973-04-16
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Granted: 1974-11-05
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Expires: 1993-04-16
Abstract
Abstract The invention relates to a device for simulating navigation at sea. It is intended for mounting above the bridge of a supposedly moving observer ship and serves for the projection, on a cylindrical screen, of images of movable ships or of coastlines. The device comprises as many superimposed concentric plates as there are ships under observation. Each plate rotates as a function of the bearing of the ship being observed with respect to the observer ship. Each plate carries a projector having a focal line objective which can be adjusted in relation to the distance that separates the observer ship and the sighted ship. Each plate further carries, associated with the projector, a particular device for displacing a number of transparent slides successively fed into the projector, the succession being carried out in relation to the inclinations of the ship being sighted with respect to the observer ship. Each transparent slide illustrates the ship being sighted in one of a number of successive positions of the said ship when the latter makes a complete turn about its own axis.
Inventors
- 👤 R Hervieu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:46
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
179 words
A device for simulating navigation, said device comprising: a. a cylindrical screen for projecting images thereon, said images simulating the position of observed objects relative to an observer, b. a rotatable support plate, c. a plurality of image means connected to said support plate and rotatable therewith, d. image projecting means mounted on said support plate and rotatable therewith, said image projecting means comprising: 1. a light source connected to said support plate, 2. an adjustable focal line objective lens positioned for alignment with said light source, said objective lens supported by said support plate, e. means for rotating said support plate for projecting images at various angles about the rotation axis of said rotatable support plate, f. means for adjusting the magnification of said focal line objective lens thereby providing projected images of a variable size, and g. means for successively positioning different ones of said plurality of image means for projection by said aligned light source and objective lens, whereby different projected images may be displayed simulating different orientations of the observed object relative to the observer.
Claim 2
Independent Claim
179 words
A device for simulating navigation, said device comprising: a. a cylindrical screen for projecting images thereon, said images simulating the position of observed objects relative to an observer, b. a rotatable support plate, c. a plurality of image means connected to said support plate and rotatable therewith, d. image projecting means mounted on said support plate and rotatable therewith, said image projecting means comprising: 1. a light source connected to said support plate, 2. an adjustable focal line objective lens positioned for alignment with said light source, said objective lens supported by said support plate, e. means for rotating said support plate for projecting images at various angles about the rotation axis of said rotatable support plate, f. means for adjusting the magnification of said focal line objective lens thereby providing projected images of a variable size, and g. means for successively positioning different ones of said plurality of image means for projection by said aligned light source and objective lens, whereby different projected images may be displayed simulating different orientations of the observed object relative to the observer.
Claim 3
Dependent Claim
6 words
the size of the projected image,
Claim 4
Dependent Claim
6 words
the size of the projected image,
Claim 5
Dependent Claim
13 words
Apparatus as recited in claim 1 further comprising: a. input means for varying
Claim 6
Dependent Claim
105 words
an adjustable focal line objective lens positioned for alignment with said light source, said objective lens supported by said support plate, e. means for rotating said support plate for projecting images at various angles about the rotation axis of said rotatable support plate, f. means for adjusting the magnification of said focal line objective lens thereby providing projected images of a variable size, and g. means for successively positioning different ones of said plurality of image means for projection by said aligned light source and objective lens, whereby different projected images may be displayed simulating different orientations of the observed object relative to the observer.
Claim 7
Dependent Claim
105 words
an adjustable focal line objective lens positioned for alignment with said light source, said objective lens supported by said support plate, e. means for rotating said support plate for projecting images at various angles about the rotation axis of said rotatable support plate, f. means for adjusting the magnification of said focal line objective lens thereby providing projected images of a variable size, and g. means for successively positioning different ones of said plurality of image means for projection by said aligned light source and objective lens, whereby different projected images may be displayed simulating different orientations of the observed object relative to the observer.
Claim 8
Dependent Claim
33 words
Apparatus as recited in claim 1 wherein said light source is positioned on one side of said image means and said objective lens is positioned on the other side of said image means.
Claim 9
Dependent Claim
58 words
the orientation of the projected image, b. means connected to said variable bearing input means for controlling the rotational position of said support plate, c. means connected to said variable size input means for controlling the magnification adjusting means of said objective lens, and d. means connected to said variable orientation input means for controlling the positioning means.
Claim 10
Dependent Claim
58 words
the orientation of the projected image, b. means connected to said variable bearing input means for controlling the rotational position of said support plate, c. means connected to said variable size input means for controlling the magnification adjusting means of said objective lens, and d. means connected to said variable orientation input means for controlling the positioning means.
Claim 11
Dependent Claim
29 words
Apparatus as recited in claim 1 further comprising, means for tilting the rotation axis of said rotatable support plate thereby projecting tilted images simulating rollIng and pitching of objects.
Claim 12
Dependent Claim
47 words
Apparatus as recited in claim 1 wherein said support plate is horizontal and rotatable about a vertical axis, said objective lens and said light source are aligned in a vertical direction and said apparatus further comprises a prism for reflecting said images in a generally horizontal direction.
Claim 13
Dependent Claim
16 words
Apparatus as recited in claim 5, including means for rotating said prism about a horizontal axis.
Claim 14
Dependent Claim
31 words
Apparatus as recited in claim 1 wherein said support plate is horizontal and rotatable about a vertical axis and said objective lens and light source are aligned in a horizontal direction.
Claim 15
Dependent Claim
37 words
Apparatus as recited in claim 1 further comprising a plurality of support plates, each plate having a plurality of image means and associated light source and objective lens, said support plates rotatable about a common rotation axis.
Claim 16
Dependent Claim
41 words
Apparatus as recited in claim 1 wherein said image means comprises: a. a rotatable disc, b. a plurality of transparent slide means disposed on the periphery of said disc, c. said positioning means comprising motor means for rotating said rotatable disc.
Claim 17
Dependent Claim
100 words
Apparatus as recited in claim 1 wherein said image means comprises: a. a pair of spaced bobbins, b. a band wound on said bobbins, c. a first plurality of transparent slide means mounted in a first row on said band, d. a second plurality of transparent slide means mounted in a second row on said band, and e. means for rotating said bobbins to position various ones of said transparent slide means between said light source and said objective lens for projection onto said screen, whereby various orientations of said images are displayed simulating various orientations of said observed object.
Claim 18
Dependent Claim
21 words
Apparatus as recited in claim 10 wherein said image means further comprises an endless loop-like band having transparent slides mounted thereon.
Claim 19
Dependent Claim
17 words
Apparatus as recited in claim 1 wherein said cylindrical screen extends substantially 360* about said projecting means.
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |