Patent US3286358A successfully refreshed from Google Patents.
US3286358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encased float
Assignee: Individual
•
Filing: 1962-03-19
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Granted: 1966-11-22
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Jordan P Smokowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:18
CPC Classifications
G; G01; G01C; G01C17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A DIRECTIONAL COMPASS COMPRISING AN OUTER TRANSPARENT HOLLOW SPHERICAL CASING AND AN INNER SPHERICAL FLOAT MEMBER OF SUBSTANTIALLY SMALLER DIAMETER THAN THE INTERIOR OF SAID CASING FLOATING IN A LIQUID MEDIUM IN SAID CASING, THE CENTER OF GRAVITY OF SAID FLOAT MEMBER BEING BELOW ITS GEOMETRICAL CENTER WHEREBY THE SAME FLOATS IN A PREDETERMINED VERTICAL POSITION, AND MAGNETIC MEANS ASSOCIATED WITH SAID FLOAT MEMBER BIASING THE SAME ABOUT A VERTICAL AXIS TO INDICATE GEOGRAPHIC DIRECTIONS, THE LIQUID MEDIUM SUBSTANTIALLY FILLING THE SPACE BETWEEN THE CASING AND THE FLOAT MEMBER BUT LEAVING A CENTRAL AIR BUBBLE BETWEEN THE UPPER GENERALLY SPHERICAL SURFACE OF THE FLOAT MEMBER AND THE UPPER INTERIOR SURFACE OF THE CASING, SAID AIR BUBBLE COMPRISING A GLOBULE OF AIR COMPLETELY ENCLOSED IN A CONTINUOUS IMPERFORATE LIQUID FILM TO FORM A RESILIENTLY DEFORMABLE OBLATE SPHEROID SERVING AS A FLUID SPACER TO MAINTAIN SUCH SURFACES OUT OF CONTACT AND CENTER THE UPPER END OF THE FLOAT MEMBER IN THE CASING.
Claim 2
Dependent Claim
160 words
A DIRECTIONAL COMPASS COMPRISING AN OUTER TRANSPARENT HOLLOW SPHERICAL CASING AND AN INNER SPHERICAL FLOAT MEMBER OF SUBSTANTIALLY SMALLER DIAMETER THAN THE INTERIOR OF SAID CASING FLOATING IN A LIQUID MEDIUM IN SAID CASING, THE CENTER OF GRAVITY OF SAID FLOAT MEMBER BEING BELOW ITS GEOMETRICAL CENTER WHEREBY THE SAME FLOATS IN A PREDETERMINED VERTICAL POSITION, AND MAGNETIC MEANS ASSOCIATED WITH SAID FLOAT MEMBER BIASING THE SAME ABOUT A VERTICAL AXIS TO INDICATE GEOGRAPHIC DIRECTIONS, THE LIQUID MEDIUM SUBSTANTIALLY FILLING THE SPACE BETWEEN THE CASING AND THE FLOAT MEMBER BUT LEAVING A CENTRAL AIR BUBBLE BETWEEN THE UPPER GENERALLY SPHERICAL SURFACE OF THE FLOAT MEMBER AND THE UPPER INTERIOR SURFACE OF THE CASING, SAID AIR BUBBLE COMPRISING A GLOBULE OF AIR COMPLETELY ENCLOSED IN A CONTINUOUS IMPERFORATE LIQUID FILM TO FORM A RESILIENTLY DEFORMABLE OBLATE SPHEROID SERVING AS A FLUID SPACER TO MAINTAIN SUCH SURFACES OUT OF CONTACT AND CENTER THE UPPER END OF THE FLOAT MEMBER IN THE CASING.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |