US3224253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurement of the dynamic reactance properties of structures
Assignee: Individual
•
Filing: 1962-10-16
•
Granted: 1965-12-21
•
Expires: 1982-10-16
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:58
CPC Classifications
G; G01; G01V; G01V1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
APPARATUS FOR MEASURING SIGNIFICANT DYNAMIC PROPERTIES OF STRUCTURES, COMPRISING: (A) MEANS RIGIDLY COUPLING A SOURCE OF CYCLICAL COMPRESIONAL DISPLACEMENT ENERGY TO THE STRUCTURE, (B) MEANS FOR VARYING THE CYCLIC OPERATING FREQUENCY OF SAID SOURCE THROUGH A PREDETERMINED RANGE OF FREQUENCIES, (C) MEANS RESPONSIVE DURING VARIATION OF SAID FREQUENCY VARYING MEANS FOR MAINTAINING CONSTANT THE VALUE OF APPLIED FORCE, (D) MEANS FOR SEPARATELY MEASURING (1) THE REACTIVE FORCE COMPONENT, AND (2) THE VELOCITY COMPONENT OF THE DISPLACEMENT MOTION INDUCED IN SAID STRUCTURE FOR VARYING VALUES OF SAID FREQUENCY, AND
Claim 2
Dependent Claim
88 words
APPARATUS FOR MEASURING SIGNIFICANT DYNAMIC PROPERTIES OF STRUCTURES, COMPRISING: (A) MEANS RIGIDLY COUPLING A SOURCE OF CYCLICAL COMPRESIONAL DISPLACEMENT ENERGY TO THE STRUCTURE, (B) MEANS FOR VARYING THE CYCLIC OPERATING FREQUENCY OF SAID SOURCE THROUGH A PREDETERMINED RANGE OF FREQUENCIES, (C) MEANS RESPONSIVE DURING VARIATION OF SAID FREQUENCY VARYING MEANS FOR MAINTAINING CONSTANT THE VALUE OF APPLIED FORCE, (D) MEANS FOR SEPARATELY MEASURING (1) THE REACTIVE FORCE COMPONENT, AND (2) THE VELOCITY COMPONENT OF THE DISPLACEMENT MOTION INDUCED IN SAID STRUCTURE FOR VARYING VALUES OF SAID FREQUENCY, AND
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |