Patent US5129265A successfully refreshed from Google Patents.
US5129265A
Expired / Lapsed
US
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Multidirectional force sensor
Assignee: Dornier GmbH
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Filing: 1990-07-26
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Granted: 1992-07-14
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Expires: 2010-07-26
Abstract
Abstract A force sensor in the integral/monolithic comprises a monolithic block of elastic material which includes a first, second and third plate; a first pair of leaf spring integrally interconnecting the first and second plate, so that the first and second plates can parallely vibrate relative to each other in a first direction; a second pair of leaf springs integrally interconnecting the first and the third plates so that the first and the third plates can parallely vibrate relative to each other in a second direction being at right angles to the first direction; a shaft clearing traverses a bore in the first plate and is affixed to the second plate; the third plate is provided for connection for force receiving; and strain gauges are placed on all the leaf springs to sense separately forces acting in the first and second directions.
Inventors
- 👤 Sven Bartels
- 👤 Johann Gansohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:23
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/16; G01L5/161; G01L5/1627
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
111 words
Force sensor comprising an integral, monolithic block which includes two nested leaf spring parallelograms arranged at a 90 degrees angle to each other in which a first end plate is connected to a second oppositely positioned end plate and the first end plate is also connected to a still further positioned third end plate extending beyond the second end plate, the connection in each instance being provided by two leaf springs there being four leaf springs accordingly; there being an opening in the first end plate; a shaft freely traversing said first end plate and being affixed to the second end plate; and deformation sensor means on all the leaf springs.
Claim 2
Dependent Claim
111 words
Force sensor comprising an integral, monolithic block which includes two nested leaf spring parallelograms arranged at a 90 degrees angle to each other in which a first end plate is connected to a second oppositely positioned end plate and the first end plate is also connected to a still further positioned third end plate extending beyond the second end plate, the connection in each instance being provided by two leaf springs there being four leaf springs accordingly; there being an opening in the first end plate; a shaft freely traversing said first end plate and being affixed to the second end plate; and deformation sensor means on all the leaf springs.
Claim 3
Dependent Claim
10 words
Sensor as in claim 1, being made of spring steel.
Claim 4
Dependent Claim
13 words
Sensor as in claim 1, the material of the block being RHF 33.
Claim 5
Dependent Claim
13 words
Sensor as in claim 1, said deformation sensing means being strain gauge strips.
Claim 6
Dependent Claim
142 words
A force sensor in integral (monolithic) construction comprising: a monolithic block of elastic material which includes a first, a second and a third plate; a first pair of leaf springs integrally interconnecting the first and second plate, so that the first and second plates can parallel vibrate relative to each other in a first direction; a second pair of leaf springs integrally interconnecting the first and the third plate so that he first and the third plates can parallely vibrate relative to each other in a second direction being at right angles to the first direction; a shaft clearingly traversing a bore in the first plate and being affixed to the second plate; the third plate provided for connection for force receiving; and strain gauge means on all the leaf springs to sense separately forces acting in the first and second directions.
Claim 7
Dependent Claim
142 words
A force sensor in integral (monolithic) construction comprising: a monolithic block of elastic material which includes a first, a second and a third plate; a first pair of leaf springs integrally interconnecting the first and second plate, so that the first and second plates can parallel vibrate relative to each other in a first direction; a second pair of leaf springs integrally interconnecting the first and the third plate so that he first and the third plates can parallely vibrate relative to each other in a second direction being at right angles to the first direction; a shaft clearingly traversing a bore in the first plate and being affixed to the second plate; the third plate provided for connection for force receiving; and strain gauge means on all the leaf springs to sense separately forces acting in the first and second directions.
References Cited (Backward Citations)
US3447766A
Cited
US3433064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |