US3235876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single aperture oscillographic recorder
Assignee: Dresser Industries Inc
•
Filing: 1964-03-02
•
Granted: 1966-02-15
•
Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Brown Lee Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:09
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14; G01V; G01V1/00; G01V1/24; G01V1/242
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN APPARATUS FOR PHOTOGRAPHICALLY RECORDING AN ELECTRICAL ENERGY SIGNAL ON A LIGHT-SENSITIVE RECORDING MEDIUM COMPRISING: MEANS FOR MOVING SAID RECORDING MEDIUM IN ONE DIRECTION; A PLURALITY OF GALVANOMETER MIRRORS, EACH GALVANOMETER MIRROR BEING PIVOTALLY MOUNTED FOR OSCILLATION IN THE DIRECTION SUBSTANTIALLY TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SAID MEDIUM; MEANS FOR OSCILLATING EACH MIRROR ABOUT ITS AXIS IN RESPONSE TO SAID SIGNAL; A LIGHT SOURCE DIRECTING LIGHT TO SAID MIRRORS UNIFORMLY ILLUMINATING EACH MIRROR; A STOP APERTURE MECHANISM POSITIONED BETWEEN SAID MIRRORS AND SAID RECORDING MEDIUM, THE STOP APERTURE BEING FORMED OF TWO ADJUSTABLE BLADES WHICH ARE SYMMETRICAL WITH A REFERENCE CENTER LINE EXTENDING FROM THE CENTER OF SAID GALVANOMETER MIRRORS TO THE CENTER OF THE RECORDING MEDIUM AND BEING SO CONSTRUCTED THAT THE BLADES MOVE SIMULTANEOUSLY TO INCREASE OR DECREASE THE APERTURE OPENING, SAID STOP APERTURE MECHANISM BEING MOVABLE TOWARD OR AWAY FROM SAID RECORDING MEDIUM.
Claim 2
Independent Claim
148 words
AN APPARATUS FOR PHOTOGRAPHICALLY RECORDING AN ELECTRICAL ENERGY SIGNAL ON A LIGHT-SENSITIVE RECORDING MEDIUM COMPRISING: MEANS FOR MOVING SAID RECORDING MEDIUM IN ONE DIRECTION; A PLURALITY OF GALVANOMETER MIRRORS, EACH GALVANOMETER MIRROR BEING PIVOTALLY MOUNTED FOR OSCILLATION IN THE DIRECTION SUBSTANTIALLY TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SAID MEDIUM; MEANS FOR OSCILLATING EACH MIRROR ABOUT ITS AXIS IN RESPONSE TO SAID SIGNAL; A LIGHT SOURCE DIRECTING LIGHT TO SAID MIRRORS UNIFORMLY ILLUMINATING EACH MIRROR; A STOP APERTURE MECHANISM POSITIONED BETWEEN SAID MIRRORS AND SAID RECORDING MEDIUM, THE STOP APERTURE BEING FORMED OF TWO ADJUSTABLE BLADES WHICH ARE SYMMETRICAL WITH A REFERENCE CENTER LINE EXTENDING FROM THE CENTER OF SAID GALVANOMETER MIRRORS TO THE CENTER OF THE RECORDING MEDIUM AND BEING SO CONSTRUCTED THAT THE BLADES MOVE SIMULTANEOUSLY TO INCREASE OR DECREASE THE APERTURE OPENING, SAID STOP APERTURE MECHANISM BEING MOVABLE TOWARD OR AWAY FROM SAID RECORDING MEDIUM.
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |