US3309687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float-operated liquid level sensing device
Assignee: Individual
•
Filing: 1962-02-23
•
Granted: 1967-03-14
•
Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 John D Phipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:33
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/18; H01H35/186; G; G01; G01F; G01F23/00; G01F23/30; G01F23/32; G01F23/36; H01H29/00; H01H29/20; B; B63; B63B; B63B2201/00; B63B2201/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN COMBINATION WITH A BOAT, A BILGE WATER SENSING DEVICE COMPRISING A PAIR OF FLOAT MEMBERS, EACH OF SAID FLOAT MEMBERS INCLUDING AN ELONGATED WATER-BUOYANT FLOAT ELEMENT AND AN ARM CONNECTED AT ONE END TO AN INTERMEDIATE PORTION OF THE FLOAT ELEMENT EXTENDING OUT TO ONE SIDE OF THE ELEMENT, SAID FLOAT ELEMENTS OCCUPYING A SUBSTANTIAL HORIZONTAL POSITION WITHIN THE CASING WHICH PARALLELS THE LONGITUDINAL AXIS OF THE BOAT, PIVOT MEANS MOUNTING THE OPPOSITE END OF THE ARM FOR EACH OF SAID FLOAT MEMBER ACCOMMODATION PIVOTAL MOVEMENT OF THE MEMBER WITH SUCH MOVEMENT LIMITED TO MOVEMENT ABOUT AN AXIS SUBSTANTIALLY PARALLELING THE LONGITUDINAL AXIS OF THE BOAT, A PERFORATE CASING SURROUNDING THE FLOAT MEMBERS AND THE PIVOT MEANS MOUNTING EACH, SWITCH MEANS ON EACH OF SAID FLOAT MEMBERS ACTUATED BY PIVOTAL MOVEMENT OF THE MEMBER, AN ELECTRICALLY OPERATED WARNING DEVICE, AND CIRCUIT MEANS CONNECTING THE SWITCH MEANS TO THE TWO FLOAT MEMBERS AND SAID ELECTRICALLY OPERATED WARNING DEVICE WITH THE SWITCH MEANS ELECTRICALLY IN PARALLEL.
Claim 2
Dependent Claim
165 words
IN COMBINATION WITH A BOAT, A BILGE WATER SENSING DEVICE COMPRISING A PAIR OF FLOAT MEMBERS, EACH OF SAID FLOAT MEMBERS INCLUDING AN ELONGATED WATER-BUOYANT FLOAT ELEMENT AND AN ARM CONNECTED AT ONE END TO AN INTERMEDIATE PORTION OF THE FLOAT ELEMENT EXTENDING OUT TO ONE SIDE OF THE ELEMENT, SAID FLOAT ELEMENTS OCCUPYING A SUBSTANTIAL HORIZONTAL POSITION WITHIN THE CASING WHICH PARALLELS THE LONGITUDINAL AXIS OF THE BOAT, PIVOT MEANS MOUNTING THE OPPOSITE END OF THE ARM FOR EACH OF SAID FLOAT MEMBER ACCOMMODATION PIVOTAL MOVEMENT OF THE MEMBER WITH SUCH MOVEMENT LIMITED TO MOVEMENT ABOUT AN AXIS SUBSTANTIALLY PARALLELING THE LONGITUDINAL AXIS OF THE BOAT, A PERFORATE CASING SURROUNDING THE FLOAT MEMBERS AND THE PIVOT MEANS MOUNTING EACH, SWITCH MEANS ON EACH OF SAID FLOAT MEMBERS ACTUATED BY PIVOTAL MOVEMENT OF THE MEMBER, AN ELECTRICALLY OPERATED WARNING DEVICE, AND CIRCUIT MEANS CONNECTING THE SWITCH MEANS TO THE TWO FLOAT MEMBERS AND SAID ELECTRICALLY OPERATED WARNING DEVICE WITH THE SWITCH MEANS ELECTRICALLY IN PARALLEL.
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |