US3724573A
Expired / Lapsed
US
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Electronic measuring apparatus for measuring masses and forces
Assignee: K Tron Patent AG
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Filing: 1972-05-09
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Granted: 1973-04-03
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Expires: 1992-05-09
Abstract
Abstract Two pretensioned vibrating strings are respectively stressed and stress-relieved by a force to be measured, said force being applied through an adjusting member by which the angle of force application can be varied to compensate initial errors of the apparatus.
Inventors
- 👤 K Saner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:46
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/12; G01G3/16; G01G3/165; G01L; G01L1/00; G01L1/10; G01L1/106
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
An electronic apparatus for measuring masses or forces comprising two pretensioned electronically excited oscillating strings each attached at one end to a movable central body, first and second force transmitting members also attached at one end to the central body, the strings and first and second force transmitting members being so arranged that they radiate from the central body in a star-like configuration, the first and second force transmitting members serving respectively to transmit to the central body a pretensioning force and a force which is a function of the mass or force to be measured, and an adjusting member by which the angles defined by the second force transmitting member with the strings and the first force transmitting member may be varied, whereby the ratio of the force transmitted by the second force transmitting member with respect to the value to be measured may be varied to compensate initial errors in the apparatus.
Claim 2
Dependent Claim
154 words
An electronic apparatus for measuring masses or forces comprising two pretensioned electronically excited oscillating strings each attached at one end to a movable central body, first and second force transmitting members also attached at one end to the central body, the strings and first and second force transmitting members being so arranged that they radiate from the central body in a star-like configuration, the first and second force transmitting members serving respectively to transmit to the central body a pretensioning force and a force which is a function of the mass or force to be measured, and an adjusting member by which the angles defined by the second force transmitting member with the strings and the first force transmitting member may be varied, whereby the ratio of the force transmitted by the second force transmitting member with respect to the value to be measured may be varied to compensate initial errors in the apparatus.
Claim 3
Dependent Claim
99 words
An apparatus according to claim 1 in which the adjusting member comprises a bellcrank through which the mass or force to be measured is transmitted to the second force transmitting member, the arm of the bellcrank which is connected to the second force transmitting member being formed with a slot set at an angle to the plane in which the bellcrank swings, the other end of the second force transmitting member being fitted with a head which engages the slot and can be locked in any position along the length of the slot in order to provide the adjustment.
Claim 4
Dependent Claim
65 words
An apparatus according to claim 1 in which the adjusting member comprises a double armed lever through one arm of which mass or force to be measured is transmitted to the second force transmitting member, the said one arm being so contrived that the arm can be bent into and out of the plane in which the arm swings in order to make the adjustment.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |