US3866470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained float device
Assignee: Individual
•
Filing: 1973-01-08
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Granted: 1975-02-18
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Expires: 1993-01-08
Abstract
Abstract In a self-contained float device for measurement of liquid level, the device comprising a float that has a hollow interior, a support arm extends from the float and is pivotally secured to allow the float to rise and fall with change of liquid level in float displacement, the improvement comprising positioning internally contained indicating means within the float hollow interior with the indicating means being responsive to the float displacement.
Inventors
- 👤 Bernard J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:06
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/76; G01F23/32; G01F23/36
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
A self-contained float device for providing a signal which is indicative of a liquid level, the device comprising a float that has a hollow interior, a support arm extending from the float and being pivotably secured to first support means to allow the float to rise and fall with the change of liquid level in float displacement, the improvement comprising, sensing means disposed and sealed entirely within the hollow float interior and remote means disposed at a remote location outside said float, said sensing means comprising electrical means the language electrically connected to said remote means and for providing an electrical signal thereto, said signal being indicative of float displacement, second support means mounted on the interior of the float, and a pivotably mounted arm mechanically connected to said electrical means, said arm being gravity responsive, whereupon any change in float displacement causes said arm to pivot to thereby effect a corresponding change in the electrical signal provided by said electrical means to said remote means.
Claim 2
Dependent Claim
166 words
A self-contained float device for providing a signal which is indicative of a liquid level, the device comprising a float that has a hollow interior, a support arm extending from the float and being pivotably secured to first support means to allow the float to rise and fall with the change of liquid level in float displacement, the improvement comprising, sensing means disposed and sealed entirely within the hollow float interior and remote means disposed at a remote location outside said float, said sensing means comprising electrical means the language electrically connected to said remote means and for providing an electrical signal thereto, said signal being indicative of float displacement, second support means mounted on the interior of the float, and a pivotably mounted arm mechanically connected to said electrical means, said arm being gravity responsive, whereupon any change in float displacement causes said arm to pivot to thereby effect a corresponding change in the electrical signal provided by said electrical means to said remote means.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein said electrical means coomprises a potentiometer.
Claim 4
Dependent Claim
14 words
The device of claim 2 wherein said arm includes weights thereon to dampen vibrations.
References Cited (Backward Citations)
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |