US3224263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Null-type vacuum microbalance
Assignee: Individual
•
Filing: 1962-11-09
•
Granted: 1965-12-21
•
Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Rogallo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:21
CPC Classifications
G; G01; G01G; G01G7/00; G01G7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A MICROBALANCE COMPRISING: (A) A SUSPENSION UNIT FORMING A COMPOUND PENDULUM; (B) MEANS SUSPENDING SAID SUSPENSION UNIT FOR FREE PIVOTING THEREOF UPON THE APPLICATION OF A FORCE THERETO; (C) AT LEAST ONE TARGET RIGIDLY ENGAGING SAID SUSPENSION UNIT FOR TRANSMITTING THERETO AN IMPINGING FORCE TO BE MEASURED; (D) ELECTROSTATIC RESTORING MEANS APPLYING A CONTROLLABLE FORCE TO SAID SUSPENSION UNIT FOR PIVOTING IT BACK TO NULL POSITON DURING APPLICATION OF FORCE TO THE TARGET; AND (E) MEANS INDICATING A NULL POSITION OF THE SUSPENSION UNIT, WHEREBY THE MAGNITUDE OF SAID CONTROLLABLE RESTORING FORCE REQUIRED TO RETURN THE SUSPENSION UNIT TO NULL POSITION IS A MEASURE OF THE FORCE APPLIED TO SAID TARGET.
Claim 2
Dependent Claim
111 words
A MICROBALANCE COMPRISING: (A) A SUSPENSION UNIT FORMING A COMPOUND PENDULUM; (B) MEANS SUSPENDING SAID SUSPENSION UNIT FOR FREE PIVOTING THEREOF UPON THE APPLICATION OF A FORCE THERETO; (C) AT LEAST ONE TARGET RIGIDLY ENGAGING SAID SUSPENSION UNIT FOR TRANSMITTING THERETO AN IMPINGING FORCE TO BE MEASURED; (D) ELECTROSTATIC RESTORING MEANS APPLYING A CONTROLLABLE FORCE TO SAID SUSPENSION UNIT FOR PIVOTING IT BACK TO NULL POSITON DURING APPLICATION OF FORCE TO THE TARGET; AND (E) MEANS INDICATING A NULL POSITION OF THE SUSPENSION UNIT, WHEREBY THE MAGNITUDE OF SAID CONTROLLABLE RESTORING FORCE REQUIRED TO RETURN THE SUSPENSION UNIT TO NULL POSITION IS A MEASURE OF THE FORCE APPLIED TO SAID TARGET.
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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 |