US4446394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linearizing mechanism for a vibrating beam force transducer
Assignee: Singer Co
•
Filing: 1981-09-14
•
Granted: 1984-05-01
•
Expires: 2001-09-14
Abstract
Abstract A single beam force transducer is provided with integrally affixed isolation springs which are axially compliant and unbalanced in their spring rates so as to induce beam bending due to applied tension and compression. The amount of bending introduced due to applied tension will be of a precise magnitude so as to substantially cancel undesirable non-linear vibration effects.
Inventors
- 👤 William C. Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:43
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/097
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
A force transducer comprising a vibrating beam having a longitudinal axis and adapted to vibrate in a plane including the axis; a supporting element secured to each end of the beam and extending in both directions tranversely of the axis; a pair of end mounts; axially complaint isolator spring means each having multiple sections of unbalanced spring rates and extending between each end mount and a corresponding support element for transmitting axial forces from the end mounts to the beam along the longitudinal axis thereof; and a pair of parallel spaced isolator means connected between each respective support element and sections of a corresponding spring means; whereby the unbalanced spring rates of the spring means induce precise beam bending due to applied vibrational forces thereby substantially cancelling undesirable non-linear effects.
Claim 2
Dependent Claim
130 words
A force transducer comprising a vibrating beam having a longitudinal axis and adapted to vibrate in a plane including the axis; a supporting element secured to each end of the beam and extending in both directions tranversely of the axis; a pair of end mounts; axially complaint isolator spring means each having multiple sections of unbalanced spring rates and extending between each end mount and a corresponding support element for transmitting axial forces from the end mounts to the beam along the longitudinal axis thereof; and a pair of parallel spaced isolator means connected between each respective support element and sections of a corresponding spring means; whereby the unbalanced spring rates of the spring means induce precise beam bending due to applied vibrational forces thereby substantially cancelling undesirable non-linear effects.
Claim 3
Dependent Claim
127 words
The structure set forth in claim 1 wherein each spring means comprises: a first section parallel to the beam and extending from a first end portion of a respective end mount; a second section perpendicular to the first and articulating from the first section to a corresponding isolator mass; a third section parallel spaced to the first section and extending between a second end portion of a respective end mount, the third section having a thickness different from that of the first section; and a fourth section located in spaced co-linear relation to the second section and having a thickness different from that of the second section, the fourth section being perpendicular to the third section and articulating from the third section to a corresponding isolator means.
Claim 4
Dependent Claim
17 words
The structure set forth in claim 2 wherein the first and second sections have the same thickness.
Claim 5
Dependent Claim
17 words
The structure set forth in claim 2 wherein the third and fourth sections have the same thickness.
Claim 6
Dependent Claim
17 words
The structure set forth in claim 3 wherein the third and fourth sections have the same thickness.
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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |