Patent US3842923A successfully refreshed from Google Patents.
US3842923A
Expired / Lapsed
US
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Overhead track scale
Assignee: NAT CONTROLS
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Filing: 1973-11-15
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Granted: 1974-10-22
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Expires: 1993-11-15
Abstract
Abstract Overhead track scale for determining the weight of loads carried by an overhead rail. The scale includes a pair of in-line levers and flexure plates for transmitting forces exerted by a load from the rail to the levers. The levers apply the forces to an output transducer which provides an output signal corresponding to the weight of the load. This signal is processed and displayed at a convenient location.
Inventors
- 👤 F Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:01
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/02; G01G19/04; G01G19/06; G01G21/00; G01G21/14; G01G21/16; G01G21/161; G01G21/166
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
188 words
In a scale for weighing a load carried by an overhead track, a base adapted to be mounted on an overhead support such as the structure from which the track is suspended, a pair of axially aligned elongated levers extending in a direction generally parallel to the track, first generally planar vertically extending flexure plates connecting the remote ends of the levers to the base, second flexure plates spaced from and generally parallel to the first flexure plates, the upper portions of the second flexure plates being affixed to the remote ends of the levers, depending hanger brackets affixed to the lower portions of the second flexure plates, a rail carried by the hanger brackets adapted to replace a section of the overhead track when the scale is installed whereby a load can be moved freely between the rail and the remainder of the track, flexible means connecting the proximate ends of the levers together, an output transducer carried by the base for delivering an output signal corresponding to the force applied thereto, and means connecting the proximate end of one of the levers to the output transducer.
Claim 2
Dependent Claim
188 words
In a scale for weighing a load carried by an overhead track, a base adapted to be mounted on an overhead support such as the structure from which the track is suspended, a pair of axially aligned elongated levers extending in a direction generally parallel to the track, first generally planar vertically extending flexure plates connecting the remote ends of the levers to the base, second flexure plates spaced from and generally parallel to the first flexure plates, the upper portions of the second flexure plates being affixed to the remote ends of the levers, depending hanger brackets affixed to the lower portions of the second flexure plates, a rail carried by the hanger brackets adapted to replace a section of the overhead track when the scale is installed whereby a load can be moved freely between the rail and the remainder of the track, flexible means connecting the proximate ends of the levers together, an output transducer carried by the base for delivering an output signal corresponding to the force applied thereto, and means connecting the proximate end of one of the levers to the output transducer.
Claim 3
Dependent Claim
20 words
A scale as in claim 1 wherein the output transducer comprises a load cell which provides an electrical output signal.
Claim 4
Dependent Claim
25 words
A scale as in claim 1 further including weight display means connected to the output transducer and locaTed remotely of the remainder of the scale.
Claim 5
Dependent Claim
37 words
A scale as in claim 1 wherein the second flexure plates are located inwardly of the first flexure plates whereby a load suspended from the rail produces a downward force at the proximate ends of the levers.
Claim 6
Dependent Claim
23 words
A scale as in claim 4 wherein the means connecting the end of one lever to the output transducer comprises a flexible cable.
Claim 7
Dependent Claim
96 words
In an overhead track scale, an elongated rail, a base adapted to be mounted on an overhead support, a pair of levers, means including generally planar flexure plates interconnecting the rail, base and one end of each lever in such manner that the rail is suspended below the base and a load applied to the rail produces a force corresponding to the load at the free ends of the levers, an output transducer for delivering an output signal corresponding to the force applied thereto, and means connecting the free ends of the levers to the transducer.
Claim 8
Dependent Claim
96 words
In an overhead track scale, an elongated rail, a base adapted to be mounted on an overhead support, a pair of levers, means including generally planar flexure plates interconnecting the rail, base and one end of each lever in such manner that the rail is suspended below the base and a load applied to the rail produces a force corresponding to the load at the free ends of the levers, an output transducer for delivering an output signal corresponding to the force applied thereto, and means connecting the free ends of the levers to the transducer.
Claim 9
Dependent Claim
28 words
An overhead track scale as defined by claim 6 further including digital display means connected electrically to the transducer and located remotely of the remainder of the scale.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |