US4344496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral parallelogram load receiver
Assignee: Testut Aequitas SA
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Filing: 1980-11-13
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Granted: 1982-08-17
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Expires: 2000-11-13
Abstract
Abstract The present invention relates to a load receiver. This load receiver comprises a fixed upright integral with a frame, a loaded upright integral with a load-carrying plate and two arms hinged on the uprights to form therewith a deformable parallelogram, and two uprights and the two arms together forming an integral structure, provided with constrictions which define the hinges of the deformable parallelogram, and a load transducer provided to detect the deformation of the parallelogram under the effect of a load applied on the plate. The load receiver is of use notably for commercial balances.
Inventors
- 👤 Jacques F. Langlais
- 👤 Jean-Claude Valadier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:44
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2243; G01G; G01G3/00; G01G3/12; G01G3/14; G01G3/1402; G01G3/1412; G01G7/00; G01G7/06; G01L1/2231; G01L1/2237
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A load receiver comprising a fixed upright assembly including an arcuate section integral with a frame, a loaded upright assembly including an arcuate section integral with a load-carrying plate and two arcuate arms hinged onto the arcuate sections to form therewith a deformable parallelogram, the two arcuate sections and the two arcuate arms together forming a circular ring-shaped integral structure comprised between a circular internal profile and a circular external profile and provided with constrictions in the internal and/or external circular profile which define the hinges of the deformable parallelogram, and a load transducer provided to detect the deformation of the parallelogram under the effect of a load applied on the plate, at least some of the constrictions having in their flexion zone a neutral line, the slope of which is inclined to the horizontal.
Claim 2
Dependent Claim
135 words
A load receiver comprising a fixed upright assembly including an arcuate section integral with a frame, a loaded upright assembly including an arcuate section integral with a load-carrying plate and two arcuate arms hinged onto the arcuate sections to form therewith a deformable parallelogram, the two arcuate sections and the two arcuate arms together forming a circular ring-shaped integral structure comprised between a circular internal profile and a circular external profile and provided with constrictions in the internal and/or external circular profile which define the hinges of the deformable parallelogram, and a load transducer provided to detect the deformation of the parallelogram under the effect of a load applied on the plate, at least some of the constrictions having in their flexion zone a neutral line, the slope of which is inclined to the horizontal.
Claim 3
Dependent Claim
37 words
A load receiver according to claim 1, wherein the slope of the neutral line of the constrictions is inclined to the horizontal by an angle α of between 30° and 60° and preferably equal to approximately 45°.
Claim 4
Dependent Claim
37 words
A load receiver according to claim 1, wherein the load transducer comprises a capacitor transducer formed by a first electrode mounted integrally with the fixed upright and by a second electrode mounted integrally with the loaded upright.
Claim 5
Dependent Claim
22 words
A load receiver according to claim 1, wherein the load transducer comprises four strain gauges, each being positioned on a respective constriction.
Claim 6
Dependent Claim
24 words
A load receiver according to claim 1, wherein the load transducer comprises four strain gauges, positioned in pairs on two constrictions having opposite strains.
Claim 7
Dependent Claim
20 words
A load receiver according to claim 1, wherein the integral structure is produced from an extrusion such as a tube.
Claim 8
Dependent Claim
28 words
A load receiver according to claim 6, wherein the extrusion is composed of a material which has elastic qualities, such as spring steel, beryllium bronze or alight alloy.
Claim 9
Dependent Claim
22 words
A load receiver according to claim 6 or 7, wherein the constrictions are produced by interior and/or exterior machining of the extrusion.
Claim 10
Dependent Claim
20 words
A load receiver according to claim 6 or 7, wherein the constrictions are produced by drawing out the extruded shape.
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) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |