US3692128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical mass meter
Assignee: K Tron Patent AG
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Filing: 1971-01-26
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Granted: 1972-09-19
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Expires: 1991-01-26
Abstract
Abstract An electrical mass meter having a frame with a baseplate, a weighing platform, a pre-tensioning mass linked to a force distributor which is in turn linked to the weighing platform, a plurality of transversely vibratable pre-tensioned strings having one end fixed to the weighing platform and the other end to the force distributor, and a transmitting element fixed to the frame and the strings, supporting thereby the weighing platform and transmitting to the strings an additional force proportional to a mass to be measured.
Inventors
- 👤 Mario Gallo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:16
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/12; G01G3/16; G01G3/165
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
An electrical mass meter comprising a frame having a baseplate, a weighing platform, a force transmitter linked to said weighing platform, a pre-tensioning mass, means connecting said pre-tensioning mass to said force transmitter, two transversely vibrating pre-tensioned strings, each having one end individually connected to said weighing platform and the other end connected to said force transmitter, means electronically vibrating said strings, means sensing the vibrations of said strings, said force transmitter including a transmitting element having one end connected to said frame and the other end connected to said other ends of said strings supporting thereby said weighing platform and transmitting to said other ends of said strings an additional force proportional to a mass to be measured, and means evaluating and displaying said vibrations in terms of said mass to be measured.
Claim 2
Dependent Claim
134 words
An electrical mass meter comprising a frame having a baseplate, a weighing platform, a force transmitter linked to said weighing platform, a pre-tensioning mass, means connecting said pre-tensioning mass to said force transmitter, two transversely vibrating pre-tensioned strings, each having one end individually connected to said weighing platform and the other end connected to said force transmitter, means electronically vibrating said strings, means sensing the vibrations of said strings, said force transmitter including a transmitting element having one end connected to said frame and the other end connected to said other ends of said strings supporting thereby said weighing platform and transmitting to said other ends of said strings an additional force proportional to a mass to be measured, and means evaluating and displaying said vibrations in terms of said mass to be measured.
Claim 3
Dependent Claim
45 words
A mass meter according to claim 1 wherein the natural frequency of vibrations of the system comprising said pre-tensioning mass and said link are higher than that of the system comprising said weighing platform, said mass to be measured, said force transmitter and said strings.
Claim 4
Dependent Claim
35 words
A mass meteR according to claim 2 further comprising a central body, said other ends of said strings and said link being jointly connected to said central body, said strings forming thereby a V-shaped configuration.
Claim 5
Dependent Claim
33 words
A mass meter according to claim 2 wherein said force transmitter comprises a lever to which said other ends of said strings are separately connected, said strings being generally parallel to each other.
Claim 6
Dependent Claim
27 words
A mass meter according to claim 2 wherein said force transmitter acts as a force multiplier when transmitting the pre-tensioning mass and the mass to be weighed.
Claim 7
Dependent Claim
139 words
An electrical mass meter comprising: a frame having a baseplate; a weighing platform; force-transmitting means linked to said weighing platform; a pre-tensioning mass; means linking said pre-tensioning mass to said force-transmitting means; a plurality of transversely vibratable pre-tensioned strings, each of said strings having one end individually connected to said weighing platform, the other ends thereof being connected to said force-transmitting means; means electronically vibrating said strings; means sensing the vibrations of said strings; said force-transmitting means including a transmitting element having one end connected to said frame and the other end connected to said other ends of said strings, supporting thereby said weighing platform and transmitting to said other ends of said strings an additional force proportional to a mass to be measured; and means evaluating and displaying said vibrations in terms of a mass to be measured.
Claim 8
Dependent Claim
139 words
An electrical mass meter comprising: a frame having a baseplate; a weighing platform; force-transmitting means linked to said weighing platform; a pre-tensioning mass; means linking said pre-tensioning mass to said force-transmitting means; a plurality of transversely vibratable pre-tensioned strings, each of said strings having one end individually connected to said weighing platform, the other ends thereof being connected to said force-transmitting means; means electronically vibrating said strings; means sensing the vibrations of said strings; said force-transmitting means including a transmitting element having one end connected to said frame and the other end connected to said other ends of said strings, supporting thereby said weighing platform and transmitting to said other ends of said strings an additional force proportional to a mass to be measured; and means evaluating and displaying said vibrations in terms of a mass to be measured.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |