CA2206634C - System for identifying stars, planets, deep sky objects and constellations - Google Patents
System for identifying stars, planets, deep sky objects and constellations Download PDFInfo
- Publication number
- CA2206634C CA2206634C CA002206634A CA2206634A CA2206634C CA 2206634 C CA2206634 C CA 2206634C CA 002206634 A CA002206634 A CA 002206634A CA 2206634 A CA2206634 A CA 2206634A CA 2206634 C CA2206634 C CA 2206634C
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- Prior art keywords
- sky
- map
- viewer
- geographic
- tables
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- Expired - Fee Related
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B27/00—Planetaria; Globes
- G09B27/04—Star maps
Abstract
A system to help a viewer find stars, planets, deep sky objects and constellations is disclosed. The system has a series of sky maps showing different views of the sky. One or more tables is provided for each map. The tables assist in corresponding the sky map to the sky. The tables have coordinates corresponding to times and dates and inform the viewer as to the direction in which he should look, the way in which the sky map should be oriented and whether the viewer should look high in the sky, low in the sky or in-between.
Description
Field of the Invention The present invention relates to the field of astronomy and, in particular, to a system making it easy for non-skilled persons to locate stars, notably constellations and planets.
Background of the Invention Astronomers have been looking at stars since long before Galileo first used the telescope to view the heavens and, yet, are still finding new stars today. Many ordinary people also have an interest in looking at the stars, especially to try to find constellations. However, except by happenstance, ordinary people seldom see a constellation for which they are looking. The reason for this is that prior to the present invention there was never an easy system to use to locate stars and constellations. While there have been many patents issued on devices for finding constellations, none of them is simple to use.
Summary of the Invention The present invention makes it easy for even a novice to readily identify stars and constellations and to know when and where to look for them. It takes no more than a few minutes to learn how to use the invention, and it i_s so simple that even a child can readily learn it.
The invention is based on a series of maps which show the locations of stars and constellations, and a series of tables which tell how to orient the map, in what direction one should look and whether one should look high in the sky, low in the sky or in the middle. A device is also provided for orienting the person correctly when looking at the maps. A plurality of tables may be used with each map and there may be a geographic map for showing which table should be used depending on the geographic location of the individual.
Brief Description of the Invention These and other features of the present invention may be more fully understood with reference to the drawings wherein:
Fig. 1 is a geographical map for determining the latitudinal zone at which one should be looking;
Fig. 2 is one map of the sky according to the present invention;
Figs. 3A - 3C are a series of three tables with coordinates for using the map of Fig. 2;
Fig. 4 is an azimuth disk for orienting the person to use the map;
I5 Fig. 5 is another map of the sky according to the present invention;
Figs. 6A - 6C are a series of three tables with coordinates for using the map of Fig. 5;
Fig. 7 is yet another map of the sky according to the present invention;
Figs. 8A - 8C are a series of three tables with coordinates for using the map of Fig. 7; and Figs. 9A - 9D are planet locator tables.
Detailed Description Fig. 1 is a geographical map used in accordance with one aspect of the present invention. In the case of Fig. l, the map is primarily of the United States. The map could, of course, be of any geographic area of the world. The map shown in fig. 1 is divided into three sections: BOTTOM, MIDDLE and TOP. The geographical map is desirable in order to determine which of three tables (Figs. 3A - 3C) are used in connection with the maps. The map of Fig. 1 need be used only once for each geographic 1_ocation.
For_ example, a person living in Omaha, Nebraska, would always use the table marked MIDDLE {Fig. 3B). While a geographical map is the preferred means for determining which table to use because of the ease of using a geographical map, it is also possible to use another means to determine whether to use the BOTTOM, MIDDLE or TOP
table, e.g., a geographical index indicating the correct table for various cities. It is also within the scope of the invention to use an electronic locator which indicates BOTTOM, MIDDLE or TOP, or to use an 800 number, especially one treat automatically identifies the table to use by the location of the telephone from which the call is placed. It is further within the scope of the invention, but not preferred, to have only one table associated with each sky map, thus eliminating the need for the geographic map.
Fig. 2 is a sky map showing stars and constellations and is used in conjunction with the coordinate tables shown in Figs: 3A -3C and the azimuth disk shown in Fig. 4.
After determining whether to use the TOP, MIDDLE or BOTTOM
table of Figs. 3A - 3C by determining geographic location such as with the geographical map of Fig. 1, the next step is to use the coordinate tables of Figs. 3A - 3C. The coordinate tables, which are derived empirically, have dates as the X-axis and hours as the Y-axis. The embodiment shown in Figs. 3A - 3C shows hourly readings for time and bi-monthly readings for date. This is the preferred set-up. However, there could be more or less dates and more or less time. If the person from Omaha, Nebraska, is standing outdoors at 11:30 p.m. on June 1, the table coordinates intersect at the three-character indicator 8JH. The first character, the "8", is used in conjunction with the azimuth disk of Fig. 4.
The azimuth disk has an indicator arrow 10 for North and the numerals "1" through "8" spaced evenly around the disk. The arrow 10 is aligned so that it points halfway between the "4" and the "5". The azimuth disk is either held in the hand or placed on the ground and aligned to the North. Moth people know in which direction North is, and since exact precision is not required, a "guesstimate" is usually sufficient, at least to get started. An adjustment can be made to the azimuth disk after finding a particular constellation so that the azimuth disk points to true North. A compass can also be used for aligning the azimuth disk, and the azimuth disk can even have an inexpensive compass attached to it in place of arrow 10.
The first digit of each coordinate table of Figs. 3A, 3B or 3C
is used to determine where one stands with respect to the azimuth disk. The person physically moves in accordance with the data in the table. In the hypothetical example of coordinates 8JH, the person from Omaha would align the azimuth disk towards North and the physically move himself until he was at position "8" of the azimuth disk.
Background of the Invention Astronomers have been looking at stars since long before Galileo first used the telescope to view the heavens and, yet, are still finding new stars today. Many ordinary people also have an interest in looking at the stars, especially to try to find constellations. However, except by happenstance, ordinary people seldom see a constellation for which they are looking. The reason for this is that prior to the present invention there was never an easy system to use to locate stars and constellations. While there have been many patents issued on devices for finding constellations, none of them is simple to use.
Summary of the Invention The present invention makes it easy for even a novice to readily identify stars and constellations and to know when and where to look for them. It takes no more than a few minutes to learn how to use the invention, and it i_s so simple that even a child can readily learn it.
The invention is based on a series of maps which show the locations of stars and constellations, and a series of tables which tell how to orient the map, in what direction one should look and whether one should look high in the sky, low in the sky or in the middle. A device is also provided for orienting the person correctly when looking at the maps. A plurality of tables may be used with each map and there may be a geographic map for showing which table should be used depending on the geographic location of the individual.
Brief Description of the Invention These and other features of the present invention may be more fully understood with reference to the drawings wherein:
Fig. 1 is a geographical map for determining the latitudinal zone at which one should be looking;
Fig. 2 is one map of the sky according to the present invention;
Figs. 3A - 3C are a series of three tables with coordinates for using the map of Fig. 2;
Fig. 4 is an azimuth disk for orienting the person to use the map;
I5 Fig. 5 is another map of the sky according to the present invention;
Figs. 6A - 6C are a series of three tables with coordinates for using the map of Fig. 5;
Fig. 7 is yet another map of the sky according to the present invention;
Figs. 8A - 8C are a series of three tables with coordinates for using the map of Fig. 7; and Figs. 9A - 9D are planet locator tables.
Detailed Description Fig. 1 is a geographical map used in accordance with one aspect of the present invention. In the case of Fig. l, the map is primarily of the United States. The map could, of course, be of any geographic area of the world. The map shown in fig. 1 is divided into three sections: BOTTOM, MIDDLE and TOP. The geographical map is desirable in order to determine which of three tables (Figs. 3A - 3C) are used in connection with the maps. The map of Fig. 1 need be used only once for each geographic 1_ocation.
For_ example, a person living in Omaha, Nebraska, would always use the table marked MIDDLE {Fig. 3B). While a geographical map is the preferred means for determining which table to use because of the ease of using a geographical map, it is also possible to use another means to determine whether to use the BOTTOM, MIDDLE or TOP
table, e.g., a geographical index indicating the correct table for various cities. It is also within the scope of the invention to use an electronic locator which indicates BOTTOM, MIDDLE or TOP, or to use an 800 number, especially one treat automatically identifies the table to use by the location of the telephone from which the call is placed. It is further within the scope of the invention, but not preferred, to have only one table associated with each sky map, thus eliminating the need for the geographic map.
Fig. 2 is a sky map showing stars and constellations and is used in conjunction with the coordinate tables shown in Figs: 3A -3C and the azimuth disk shown in Fig. 4.
After determining whether to use the TOP, MIDDLE or BOTTOM
table of Figs. 3A - 3C by determining geographic location such as with the geographical map of Fig. 1, the next step is to use the coordinate tables of Figs. 3A - 3C. The coordinate tables, which are derived empirically, have dates as the X-axis and hours as the Y-axis. The embodiment shown in Figs. 3A - 3C shows hourly readings for time and bi-monthly readings for date. This is the preferred set-up. However, there could be more or less dates and more or less time. If the person from Omaha, Nebraska, is standing outdoors at 11:30 p.m. on June 1, the table coordinates intersect at the three-character indicator 8JH. The first character, the "8", is used in conjunction with the azimuth disk of Fig. 4.
The azimuth disk has an indicator arrow 10 for North and the numerals "1" through "8" spaced evenly around the disk. The arrow 10 is aligned so that it points halfway between the "4" and the "5". The azimuth disk is either held in the hand or placed on the ground and aligned to the North. Moth people know in which direction North is, and since exact precision is not required, a "guesstimate" is usually sufficient, at least to get started. An adjustment can be made to the azimuth disk after finding a particular constellation so that the azimuth disk points to true North. A compass can also be used for aligning the azimuth disk, and the azimuth disk can even have an inexpensive compass attached to it in place of arrow 10.
The first digit of each coordinate table of Figs. 3A, 3B or 3C
is used to determine where one stands with respect to the azimuth disk. The person physically moves in accordance with the data in the table. In the hypothetical example of coordinates 8JH, the person from Omaha would align the azimuth disk towards North and the physically move himself until he was at position "8" of the azimuth disk.
The second coordinate in the table is J. Fig. 2 has letters A, B, C, D, E, etc. about the perimeter. The viewer, standing at position "8" with respect to the azimuth disk, rotates the sky.map until coordinate J is pointing directly away from him. With the map of Fig. ~~, the map would be upside down with respect to the viewer.
The final coordinate indicates whether, for this sky map, one should be looking low, medium or high in the sky. In this case, since the letter is H, one should be looking high. It has been found that holding the sky map comfortably in front of the viewer, pointing in the proper direction (in this case, J) and moving the sky map Low, Middle or High according to the particular coordinate given makes the finding of the stars and constellations shown in the sky map simplicity itself.
In the sky map of Fig. 2, one can see constellations Little Dipper 14, Big Dipper 16, and Draco 18. It has been found to be desirable to indicate these names on the sky map. In the case of Fig. 2, the name Little Dipper appears between the S and the A, and an arrow 20 points to the Little Dipper 14. Similar indicators can be used for the other constellations and for other significant objects on the sky map, such as Polaris (the North Star) 12, Draco 18, the M=O1 spiral galaxy 22, Merak 24 and Dubhe 26.
There is preferably a series of sky maps and tables so that the entire sky is covered throughout the year. Additional maps are shown in figs. S and 7 and their corresponding tables are shown in Figs. 6A - 6C and 8A - 8C. Referring to Fig. 5, one can see the constellations Canis Major 28, Canis Minor 30, Monoceros 32, Columba 34, Eridanus 36, Lepus 38 and Orion 40, as well as a number of bright stars 42, 44, 46, 48 and 50, and also a number of deep sky objects 52, 53, 54 and 56. In Fig. 7, there are the constellations Canis Major 58, Columba 60, Eridanus 62, Caelum 64, S Dorado 66, Puppis 68, Carina 70, Lepus 72, Pictor 74, Pyxie 76 and Vela 78, as well as the bright stars Sirius 80 and Canopus 82.
Five galactic clusters 84, 86, 88, 90 and 92 can also be seen Referring to Figs . 3A - 3C, 6A - 6B and 8A - 8C, there are some intersections of columns and rows that do not have coordinates. This is either because at the time of day no stars are visible due to sunlight or because the stars of that particular sky map are not visible on that particular night frm the geographical area shown in Fig. 1.
The planets of the solar system are also of interest to many people, especially the readily visible planets Venus, Mar, Jupiter and Saturn. Since all planets follow particular paths, astronomers know the constellation in or near which they will be appearing at a particular point in time. The coincidence of planets and constellations is so established that it is possible to create charts showing the constellations in or near which a particular planet will appear at a given point in time. Figs. 9a - 9D show such a table for each of the years 1999 - 2002. As shown in Figs.
9A - 9D, the visible planets are shown as the X-axis and the date is the Y-axis. The intersecting square shows the constellation in or near which a particular planet will be during a particular month. For example, in January of 2000, Jupiter will be located in or near the constellation Pisces. There are times when a planet is not in or near a constellation, but rather between two constellations. For example, in January of 2000 Venus will be between the constellations Scorpio and Sagittarius, and this is so indicated in the table of Fig. 9B.
The tables of Figs. 9A - 9D can be used in conjunction with the maps of Figs. 2, 5 and 7, and the corresponding tables 3A - 3C, 6A - 6C and 8A - 8C, and with such additional maps and tables as one cares to make. As previously indicated, it has been found that a series of 20 maps is best suited for the United States. For ease of cross-reference, there can also be a table (not shown) indicating which map contains which constellations. This helps not only to find the constellations but also to find the planets.
It is preferred that the sky maps and tables be hard copies, e.g., one foot by one foot in plastic or on cardboard, the latter suitably being in a spiral bound notebook. However, the information could also be displayed electronically, such as with a lap top computer. It is also within the scope of the invention to have the tables entered into a pager-sized device in which the coordinates are displayed on a screen the size of those used on a pager. The only data the user would have to enter would be the date, time and table desired. It is also possible to use transparencies for the sky maps, either to hold them up for viewing through or f_or attachment to binocu7_ars or a telescope.
Various other changes may be made for carrying out the instant invention without departing from the spirit and scope of the invention. It will, therefore, be understood that the claims are intended to cover all changes and modifications of the preferred embodiments of the invention herein chosen for the purpose of illustration which do not constitute a departure from the spirit and scope of the invention.
The final coordinate indicates whether, for this sky map, one should be looking low, medium or high in the sky. In this case, since the letter is H, one should be looking high. It has been found that holding the sky map comfortably in front of the viewer, pointing in the proper direction (in this case, J) and moving the sky map Low, Middle or High according to the particular coordinate given makes the finding of the stars and constellations shown in the sky map simplicity itself.
In the sky map of Fig. 2, one can see constellations Little Dipper 14, Big Dipper 16, and Draco 18. It has been found to be desirable to indicate these names on the sky map. In the case of Fig. 2, the name Little Dipper appears between the S and the A, and an arrow 20 points to the Little Dipper 14. Similar indicators can be used for the other constellations and for other significant objects on the sky map, such as Polaris (the North Star) 12, Draco 18, the M=O1 spiral galaxy 22, Merak 24 and Dubhe 26.
There is preferably a series of sky maps and tables so that the entire sky is covered throughout the year. Additional maps are shown in figs. S and 7 and their corresponding tables are shown in Figs. 6A - 6C and 8A - 8C. Referring to Fig. 5, one can see the constellations Canis Major 28, Canis Minor 30, Monoceros 32, Columba 34, Eridanus 36, Lepus 38 and Orion 40, as well as a number of bright stars 42, 44, 46, 48 and 50, and also a number of deep sky objects 52, 53, 54 and 56. In Fig. 7, there are the constellations Canis Major 58, Columba 60, Eridanus 62, Caelum 64, S Dorado 66, Puppis 68, Carina 70, Lepus 72, Pictor 74, Pyxie 76 and Vela 78, as well as the bright stars Sirius 80 and Canopus 82.
Five galactic clusters 84, 86, 88, 90 and 92 can also be seen Referring to Figs . 3A - 3C, 6A - 6B and 8A - 8C, there are some intersections of columns and rows that do not have coordinates. This is either because at the time of day no stars are visible due to sunlight or because the stars of that particular sky map are not visible on that particular night frm the geographical area shown in Fig. 1.
The planets of the solar system are also of interest to many people, especially the readily visible planets Venus, Mar, Jupiter and Saturn. Since all planets follow particular paths, astronomers know the constellation in or near which they will be appearing at a particular point in time. The coincidence of planets and constellations is so established that it is possible to create charts showing the constellations in or near which a particular planet will appear at a given point in time. Figs. 9a - 9D show such a table for each of the years 1999 - 2002. As shown in Figs.
9A - 9D, the visible planets are shown as the X-axis and the date is the Y-axis. The intersecting square shows the constellation in or near which a particular planet will be during a particular month. For example, in January of 2000, Jupiter will be located in or near the constellation Pisces. There are times when a planet is not in or near a constellation, but rather between two constellations. For example, in January of 2000 Venus will be between the constellations Scorpio and Sagittarius, and this is so indicated in the table of Fig. 9B.
The tables of Figs. 9A - 9D can be used in conjunction with the maps of Figs. 2, 5 and 7, and the corresponding tables 3A - 3C, 6A - 6C and 8A - 8C, and with such additional maps and tables as one cares to make. As previously indicated, it has been found that a series of 20 maps is best suited for the United States. For ease of cross-reference, there can also be a table (not shown) indicating which map contains which constellations. This helps not only to find the constellations but also to find the planets.
It is preferred that the sky maps and tables be hard copies, e.g., one foot by one foot in plastic or on cardboard, the latter suitably being in a spiral bound notebook. However, the information could also be displayed electronically, such as with a lap top computer. It is also within the scope of the invention to have the tables entered into a pager-sized device in which the coordinates are displayed on a screen the size of those used on a pager. The only data the user would have to enter would be the date, time and table desired. It is also possible to use transparencies for the sky maps, either to hold them up for viewing through or f_or attachment to binocu7_ars or a telescope.
Various other changes may be made for carrying out the instant invention without departing from the spirit and scope of the invention. It will, therefore, be understood that the claims are intended to cover all changes and modifications of the preferred embodiments of the invention herein chosen for the purpose of illustration which do not constitute a departure from the spirit and scope of the invention.
Claims (13)
1. In a system for aiding a viewer in the location of stars in the sky, (a) a series of sky maps, each sky map showing a different view of the sky and each sky map having stars positioned thereon, (b) geographic means for orienting each of said sky maps in relation to a viewer, (c) a series of tables, for association with said series of sky maps, with at least one table for each said sky map of the series each table including selected groups of coordinates, each group including (i) a first coordinate indicating the direction in which a viewer should look;
(ii) a second coordinate indicating the orientation in which the sky map should be positioned; and (iii) a third coordinate indicating whether the viewer should look high, middle or low in the sky of the sky map.
(ii) a second coordinate indicating the orientation in which the sky map should be positioned; and (iii) a third coordinate indicating whether the viewer should look high, middle or low in the sky of the sky map.
2. The system of Claim 1 wherein more than one table is provided for association with each said sky map, each said table applicable to a selected latitudinal zone.
3. The system of Claim 2 wherein said geographic means for orienting each sky map in relation to a viewer includes indicia establishing which of the tables apply to the viewer's geographic location.
4. The system of Claim 3 wherein said geographic means is a territorial map.
5. The system of Claim 4 wherein said territorial map is divided into latitudinal zones.
6. The system of Claim 3 wherein said geographic means includes an electronic earth positioning locator.
7. The system of Claim 1 in which said means for orienting a sky map in relation to a viewer is controlled by said first coordinate.
8. The system of Claim 7 wherein said geographic means for orienting each sky map includes an azimuth disk with indicia thereon circumferentially spaced with an indicator for establishing a North direction.
9. The system of Claim 8 wherein said indicia include the numerals "l" through "8" equidistantly spaced about the azimuth disk circumference.
10. The system of Claim 8 wherein said indicator includes an arrow representation located generally centrally of said azimuth disk.
11. The system of Claim 8 wherein said indicator is a compass.
12. The system of Claim 1 further including planet locating means for determining the location of at least one planet of a sky map.
13. The system of Claim 12 wherein said planet locating means includes a table having planets along the X-axis and dates along the Y-axis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/654,913 US5704653A (en) | 1996-05-29 | 1996-05-29 | System for identifying stars, planets, deep sky objects and constellations |
| CA002206634A CA2206634C (en) | 1996-05-29 | 1997-05-30 | System for identifying stars, planets, deep sky objects and constellations |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/654,913 US5704653A (en) | 1996-05-29 | 1996-05-29 | System for identifying stars, planets, deep sky objects and constellations |
| CA002206634A CA2206634C (en) | 1996-05-29 | 1997-05-30 | System for identifying stars, planets, deep sky objects and constellations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2206634A1 CA2206634A1 (en) | 1998-11-30 |
| CA2206634C true CA2206634C (en) | 2004-09-28 |
Family
ID=25679397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002206634A Expired - Fee Related CA2206634C (en) | 1996-05-29 | 1997-05-30 | System for identifying stars, planets, deep sky objects and constellations |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5704653A (en) |
| CA (1) | CA2206634C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056554A (en) * | 1998-09-09 | 2000-05-02 | Samole; Sidney | Apparatus and method for finding and identifying nighttime sky objects |
| US6366212B1 (en) | 1999-03-03 | 2002-04-02 | Michael Lemp | Celestial object location device |
| US7068180B2 (en) * | 1999-03-03 | 2006-06-27 | Yamcon, Inc. | Celestial object location device |
| US6844822B2 (en) | 1999-03-03 | 2005-01-18 | Yamcon, Inc. | Celestial object location device |
| US7471211B2 (en) * | 1999-03-03 | 2008-12-30 | Yamcon, Inc. | Celestial object location device |
| US7201308B2 (en) * | 2003-02-11 | 2007-04-10 | Chelsea Samo-Lipman | Methods for identifying and registering constellations |
| US20050030189A1 (en) * | 2003-08-06 | 2005-02-10 | William Foster | Device for celestial object location relative to a user's gaze or its approximation |
| US7197829B2 (en) * | 2004-05-04 | 2007-04-03 | Acres John F | Laser guided celestial identification device |
| US20050250085A1 (en) * | 2004-05-07 | 2005-11-10 | Yamcon, Inc. | Viewing and display apparatus |
| US7010862B2 (en) * | 2004-06-04 | 2006-03-14 | Yamcon, Inc. | Viewing and display apparatus position determination algorithms |
| US20060082872A1 (en) * | 2004-10-20 | 2006-04-20 | Acres John F | Apparatus for making celestial observations |
| US20060235614A1 (en) * | 2005-04-14 | 2006-10-19 | Starvision Technologies Inc. | Method and Apparatus for Automatic Identification of Celestial Bodies |
| US7477367B2 (en) * | 2006-06-07 | 2009-01-13 | Yamcon, Inc. | Celestial object identification device |
| US20080168492A1 (en) * | 2007-01-05 | 2008-07-10 | Meade Instruments Corp. | Celestial Viewing System With Video Display |
| US20090254274A1 (en) * | 2007-07-27 | 2009-10-08 | Kulik Victor | Navigation system for providing celestial and terrestrial information |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US832527A (en) * | 1905-10-05 | 1906-10-02 | Leon Barritt | Star and planet finder. |
| US2231071A (en) * | 1940-03-19 | 1941-02-11 | Thomas T Harvey | Astronomical instrument |
| US2337587A (en) * | 1942-05-05 | 1943-12-28 | Mark Cook And George Cook | Navigation guide |
| US2432958A (en) * | 1943-12-13 | 1947-12-16 | Republic Flow Meters Co | Navigation instrument |
| US2495211A (en) * | 1947-11-14 | 1950-01-24 | Harold B Curtis | Star finder |
| US2508027A (en) * | 1948-01-31 | 1950-05-16 | Philip E Hoffmeister | Celestial position indicator and compass |
| US2755565A (en) * | 1953-07-03 | 1956-07-24 | Alkema Hendrik | Star finder |
| US3003258A (en) * | 1961-01-06 | 1961-10-10 | Anthony J Stefano | Universal world time and star map |
| US3257728A (en) * | 1964-07-15 | 1966-06-28 | Herbert A Blomquist | Astronomical instrument |
| FR2215881A5 (en) * | 1973-01-25 | 1974-08-23 | Moliard Henri | |
| US3863665A (en) * | 1973-02-16 | 1975-02-04 | Iv Valentine Hechler | Anti-back-siphoning water supply valve and mixer |
| US4402672A (en) * | 1981-11-12 | 1983-09-06 | Lowe Jr Henry E | Method for plotting and disseminating information on the paths of violent storms |
| US4938697A (en) * | 1988-11-21 | 1990-07-03 | Ben Mayer | Multi-dimensional astral position finding device |
| US4970793A (en) * | 1990-02-12 | 1990-11-20 | Atamian George C | Method and apparatus for determining the position of stars |
| US5419586A (en) * | 1993-12-15 | 1995-05-30 | Rand Mcnally & Company | Bound cartographic material |
-
1996
- 1996-05-29 US US08/654,913 patent/US5704653A/en not_active Expired - Lifetime
-
1997
- 1997-05-30 CA CA002206634A patent/CA2206634C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5704653A (en) | 1998-01-06 |
| CA2206634A1 (en) | 1998-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |