Patent US3320569A successfully refreshed from Google Patents.
US3320569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear load cell
Assignee: Instron Corp
•
Filing: 1965-02-17
•
Granted: 1967-05-16
•
Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:51
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2218; G01L1/2225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A SHEAR LOAD CELL FOR MEASURING THE MAGNITUDE OF AN APPLIED LOAD COMPRISING, IN COMBINATION: A CANTILEVER BEAM WITH, INTEGRALLY, A LOADING PORTION TO WHICH THE LOAD IS APPLIED, A SUPPORT PORTION ADAPTED FOR ENGAGING AN ADJACENT MEMBER ON WHICH THE LOAD CELL MAY BE CANTILEVER MOUNTED, AND A THINNER INTERMEDIATE GAUGING PORTION, A SUBSTANTIALLY CYLINDRICAL CAVITY EXTENDING THROUGH SAID GAUGING PORTION INTERMEDIATE SHEAR SURFACES THEREOF WITH THE CENTRAL AXIS OF SAID CAVITY PERPENDICULAR TO SAID SHEAR SURFACES, SAID LOADING PORTION AND SUPPORT PORTION INCLUDING RESPECTIVELY A LONGITUDINALLY SPACED LOADING AREA AND A PARALLEL OPPOSITELY FACING SUPPORT AREA, SAID LOADING AREA INCLUDING A PAIR OF SPACED, TRANSVERSE LOADING RIDGES, SAID SUPPORT AREA INCLUDING A PAIR OF SPACED, TRANSVERSE SUPPORT RIDGES AND MEANS CLOSELY ADJACENT SAID SUPPORT RIDGES FOR SECURING SAID LOAD CELL TO SAID ADJACENT MEMBER, AND A PAIR OF STRAIN GAUGES BONDED TO EACH OF SAID SHEAR SURFACES AT EQUAL DISTANCES ABOVE AND BELOW THE NEUTRAL AXIS OF THE BEAM WITH STRAIN SENSITIVE RESISTANCE FILAMENTS OF ON OF THE PAIR AT A 45* ANGLE TO THE NEUTRAL AXIS AND PERPENDICULAR TO STRAIN SENSITIVE RESISTANCE FILAMENTS OF THE OTHER OF THE PAIR.
Claim 2
Dependent Claim
192 words
A SHEAR LOAD CELL FOR MEASURING THE MAGNITUDE OF AN APPLIED LOAD COMPRISING, IN COMBINATION: A CANTILEVER BEAM WITH, INTEGRALLY, A LOADING PORTION TO WHICH THE LOAD IS APPLIED, A SUPPORT PORTION ADAPTED FOR ENGAGING AN ADJACENT MEMBER ON WHICH THE LOAD CELL MAY BE CANTILEVER MOUNTED, AND A THINNER INTERMEDIATE GAUGING PORTION, A SUBSTANTIALLY CYLINDRICAL CAVITY EXTENDING THROUGH SAID GAUGING PORTION INTERMEDIATE SHEAR SURFACES THEREOF WITH THE CENTRAL AXIS OF SAID CAVITY PERPENDICULAR TO SAID SHEAR SURFACES, SAID LOADING PORTION AND SUPPORT PORTION INCLUDING RESPECTIVELY A LONGITUDINALLY SPACED LOADING AREA AND A PARALLEL OPPOSITELY FACING SUPPORT AREA, SAID LOADING AREA INCLUDING A PAIR OF SPACED, TRANSVERSE LOADING RIDGES, SAID SUPPORT AREA INCLUDING A PAIR OF SPACED, TRANSVERSE SUPPORT RIDGES AND MEANS CLOSELY ADJACENT SAID SUPPORT RIDGES FOR SECURING SAID LOAD CELL TO SAID ADJACENT MEMBER, AND A PAIR OF STRAIN GAUGES BONDED TO EACH OF SAID SHEAR SURFACES AT EQUAL DISTANCES ABOVE AND BELOW THE NEUTRAL AXIS OF THE BEAM WITH STRAIN SENSITIVE RESISTANCE FILAMENTS OF ON OF THE PAIR AT A 45* ANGLE TO THE NEUTRAL AXIS AND PERPENDICULAR TO STRAIN SENSITIVE RESISTANCE FILAMENTS OF THE OTHER OF THE PAIR.
References Cited (Backward Citations)
US2597751A
Cited
US2722587A
Cited
US3024648A
Cited
US3037178A
Cited
US3195353A
Cited
US3205706A
Cited
US3196676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |