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US3793884A
Expired / Lapsed
US
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Liquid level measuring device
Assignee: Individual
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Filing: 1972-12-27
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Granted: 1974-02-26
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Expires: 1992-12-27
Abstract
Abstract A liquid level measuring device is provided with a frame. A float member within the frame and a gripper member partially within the float member both surround a guide. Contact edges of the gripper member engage the guide. Means connected to the guide selectively disengage the gripper member from the guide.
Inventors
- 👤 W Fling
- 👤 T Fling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:06
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/66
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
A liquid level measuring device for a container, comprising: a. a frame insertable in liquid in said container; b. a guide cable in said frame; c. a buoyant float passing through and surrounding said guide cable; d. a gripper member having an aperture through which said guide cable passes, said guide cable movably associated with said buoyant float, the ends of said aperture having upper and lower contact edges on opposite surfaces of the gripper member, said gripper member rising with said float during upward motion of said float relative to said guide cable; e. said contact edges engaging said guide cable when the weight of said gripper member is allowed to act on said guide cable when said float is out of contact with said liquid; and f. means in the frame connected to said guide cable and cooperating with said float for selectively disengaging said gripper member from said guide cable when said gripper member contacts said frame.
Claim 2
Dependent Claim
160 words
A liquid level measuring device for a container, comprising: a. a frame insertable in liquid in said container; b. a guide cable in said frame; c. a buoyant float passing through and surrounding said guide cable; d. a gripper member having an aperture through which said guide cable passes, said guide cable movably associated with said buoyant float, the ends of said aperture having upper and lower contact edges on opposite surfaces of the gripper member, said gripper member rising with said float during upward motion of said float relative to said guide cable; e. said contact edges engaging said guide cable when the weight of said gripper member is allowed to act on said guide cable when said float is out of contact with said liquid; and f. means in the frame connected to said guide cable and cooperating with said float for selectively disengaging said gripper member from said guide cable when said gripper member contacts said frame.
Claim 3
Dependent Claim
175 words
A liquid level measuring device for a container, comprising: a. a frame insertable in liquid in the container; b. a flexible guide means in said frame; c. a buoyant float passing through and surrounding said guide means; d. a gripper member selectively movable through the guide means and positioned partially within said buoyant float and surrounding said guide means, said gripper member having a straight portion with an aperture and an angled portion and adapted to move along the guide during upward motion of said float in the liquid relative to said guide means, the edges of said aperture gripping the guide means upon downward movement of said float; and e. disengaging means connected to said guide means for selectively disengaging said gripper member from said guide means by moving said guide means downward and inward toward said frame until the angled portion said gripper member contacts said frame and the straight portion of the gripper is substantially perpendicular to the guide means thereby disengaging said gripper member and said float from said guide means.
Claim 4
Dependent Claim
175 words
A liquid level measuring device for a container, comprising: a. a frame insertable in liquid in the container; b. a flexible guide means in said frame; c. a buoyant float passing through and surrounding said guide means; d. a gripper member selectively movable through the guide means and positioned partially within said buoyant float and surrounding said guide means, said gripper member having a straight portion with an aperture and an angled portion and adapted to move along the guide during upward motion of said float in the liquid relative to said guide means, the edges of said aperture gripping the guide means upon downward movement of said float; and e. disengaging means connected to said guide means for selectively disengaging said gripper member from said guide means by moving said guide means downward and inward toward said frame until the angled portion said gripper member contacts said frame and the straight portion of the gripper is substantially perpendicular to the guide means thereby disengaging said gripper member and said float from said guide means.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |