US3083469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leveling device
Assignee: BOGUE ELECTRIC Manufacturing Co
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Filing: 1960-04-28
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Granted: 1963-04-02
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Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 John A Herbst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:01
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/02; G01C9/06; Y; Y10; Y10S; Y10S33/00; Y10S33/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
A LEVELING DEVICE COMPRISING AN UPRIGHT FRAME, PENDULUM SUSPENDING MEANS AT THE UPPER END OF SAID FRAME, SAID SUSPENDING MEANS COMPRISING A HORIZONTAL SHAFT ON SAID FRAME ARRANGED FOR ROCKING MOVEMENT, A CROSS MEMBER ON SAID SHAFT, A PAIR OF LIGATURE MEANS EXTENDING DOWNWARDLY FROM THE ENDS OF SAID CROSS MEMBER RESPECTIVELY, BIFURCATED PENDULUM MEANS AFFIXED TO THE LOWER ENDS OF SAID LIGATURE MEANS AND HAVING DEPENDING ARM PORTIONS, ELECTROMAGNETIC MEANS COMPRISING A COIL BETWEEN THE ARM PORTIONS OF SAID PENDULUM MEANS HAVING AN OPENING PARALLEL TO THE AXIS OF SAID SHAFT, AND A MAGNETIC CORE MOUNTED ON THE ARM PORTIONS OF SAID PENDULUM MEANS AND DISPOSED WITHIN THE OPENING OF SAID COIL FOR AXIAL MOVEMENT RELATIVE THERETO, SAID COIL HAVING AN OPENING OF OVAL SECTION TO PERMIT MOVEMENT OF SAID CORE TRANSVERSELY OF THE AXIS THEREOF IN RESPONSE TO ROCKING MOVEMENT OF SAID SHAFT, SAID ELECTROMAGNETIC
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |