US3266296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for inspecting annular workpieces
Assignee: ZF Active Safety US Inc
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Filing: 1963-08-28
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Granted: 1966-08-16
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Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert T Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:15
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49492
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
APPARATUS FOR INSPECTING WHEEL RIMS OR THE LIKE TO DETERMINE THE PRESENCE OF LEAKS THEREIN INCLUDING AN ANNULAR DIAPHRAGM, ENGAGEABLE WITH A RIM TO BE INSPECTED ADJACENT THE AXIALLY OPPOSITE EDGES THEREOF, SAID DIAPHRAGM BEING OPERABLE TO ENCLOSE A SPACE SURROUNDING THE RADIALLY OUTER SURFACE OF THE RIM, MEANS FOR PRESSURIZING SAID DIAPHRAGM TO MOVE IT RADIALLY INWARDLY; OF SAID RIM AND PRESSURIZE THE ENCLOSED SPACE AROUND SAID RIM AND MEANS DISPOSED GENERALLY WITHIN THE AREA BOUNDED BY SAID RIM FOR DETECTING ULTRASONIC VIBRATIONS PRODUCED BY AIR PASSING THROUGH LEAKS IN THE RIM UPON PRESSURIZATION OF THE SPACE SURROUNDING THE RIM.
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |