US3227033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric time resolution rangefinders
Assignee: Individual
•
Filing: 1961-08-08
•
Granted: 1966-01-04
•
Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Whyte James Norwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:04
CPC Classifications
G; G01; G01C; G01C3/00; G01C3/02; G01C3/06; G01C3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A RANGEFINDER COMPRISING A RANGEFINDER OBJECTIVE OPTICAL SYSTEM FOR PRODUCING A PAIR OF IMAGES OF AN OBJECT WHOSE RANGE IS TO PREDETERMINED, THE SEPARATION OF WHICH IMAGES IS A FUNCTION OF THE SAID RANGE; A SINGLE ROTATABLE REFLECTOR ONTO WHICH IMAGE FORMING RAYS FROM BOTH SAID IMAGES ARE PROJECTED; AND A DETECTOR IN THE FOCAL PLANE OF SAID SYSTEM, OVER WHICH THE IMAGES ARE SUCCESSIVELY SWEPT BY SAID REFLECTOR AS ITS ROTATES, FOR PRODUCING AN ELECTRICAL PULSE AT THE PASSAGE OF EACH IMAGE, THE TIME INTERVAL BETWEEN TWO SUCCESSIVE PULSES BEING A MEASURE OF THE SAID RANGE.
Claim 2
Dependent Claim
97 words
A RANGEFINDER COMPRISING A RANGEFINDER OBJECTIVE OPTICAL SYSTEM FOR PRODUCING A PAIR OF IMAGES OF AN OBJECT WHOSE RANGE IS TO PREDETERMINED, THE SEPARATION OF WHICH IMAGES IS A FUNCTION OF THE SAID RANGE; A SINGLE ROTATABLE REFLECTOR ONTO WHICH IMAGE FORMING RAYS FROM BOTH SAID IMAGES ARE PROJECTED; AND A DETECTOR IN THE FOCAL PLANE OF SAID SYSTEM, OVER WHICH THE IMAGES ARE SUCCESSIVELY SWEPT BY SAID REFLECTOR AS ITS ROTATES, FOR PRODUCING AN ELECTRICAL PULSE AT THE PASSAGE OF EACH IMAGE, THE TIME INTERVAL BETWEEN TWO SUCCESSIVE PULSES BEING A MEASURE OF THE SAID RANGE.
References Cited (Backward Citations)
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |