US3134178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for pacing reading
Assignee: Individual
•
Filing: 1961-03-31
•
Granted: 1964-05-26
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
- 👤 Henry C Fox
- 👤 Edgar O Zumwalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:30
CPC Classifications
G; G09; G09B; G09B17/00; G09B17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A PACER READING DEVICE FOR A FILM STRIP PROJECTOR HAVING A PAIR OF NORMALLY UPRIGHT LATERALLY SPACED OPAQUE RECTANGULAR FILM GUIDE MEMBERS TO SLIDABLY RECEIVE SAID FILM STRIP THEREBETWEEN, EACH OF SAID GUIDE MEMBERS HAVING AN APERTURE THEREIN, SAID APERTURES BEING ALIGNED WITH ONE ANOTHER, A LIGHT SOURCE, A LENS SYSTEM DISPOSED INTERMEDIATE SAID SOURCE AND ONE OF SAID GUIDE MEMBERS, A HOUSING FOR SAID SOURCE AND SAID SYSTEM, AN ELONGATED SUBSTANTIALLY RECTANGULAR OPAQUE BLADE HAVING A WINDOW EXTENDING TRANSVERSELY THROUGH SAID BLADE ADJACENT ONE END THEREOF, THE SLIDE MOUNTED FOR VERTICAL RECIPROCATION ON SAID HOUSING, SAID BLADE HAVING ITS OTHER END FIXEDLY SECURED TO SAID SLIDE AND HAVING ITS WINDOW NORMALLY ALIGNED WITH SAID APERTURES, MEANS ON SAID HOUSING ENGAGING AND LIFTING SAID SLIDE WHEREBY SAID WINDOW FORMED IN SAID BLADE IS PROGRESSIVELY MOVED UPWARDLY OUT OF ALIGNMENT WITH SAID APERTURES AND THE LIGHT RAYS FROM SAID SOURCE ARE PROGRESSIVELY BLOCKED FROM PASSAGE THROUGH SAID APERTURES, AND SAID SLIDE AND BLADE RETURNING TO THEIR RESPECTIVE ORIGINAL POSITIONS UPON DISENGAGEMENT OF SAID MEANS.
Claim 2
Dependent Claim
173 words
A PACER READING DEVICE FOR A FILM STRIP PROJECTOR HAVING A PAIR OF NORMALLY UPRIGHT LATERALLY SPACED OPAQUE RECTANGULAR FILM GUIDE MEMBERS TO SLIDABLY RECEIVE SAID FILM STRIP THEREBETWEEN, EACH OF SAID GUIDE MEMBERS HAVING AN APERTURE THEREIN, SAID APERTURES BEING ALIGNED WITH ONE ANOTHER, A LIGHT SOURCE, A LENS SYSTEM DISPOSED INTERMEDIATE SAID SOURCE AND ONE OF SAID GUIDE MEMBERS, A HOUSING FOR SAID SOURCE AND SAID SYSTEM, AN ELONGATED SUBSTANTIALLY RECTANGULAR OPAQUE BLADE HAVING A WINDOW EXTENDING TRANSVERSELY THROUGH SAID BLADE ADJACENT ONE END THEREOF, THE SLIDE MOUNTED FOR VERTICAL RECIPROCATION ON SAID HOUSING, SAID BLADE HAVING ITS OTHER END FIXEDLY SECURED TO SAID SLIDE AND HAVING ITS WINDOW NORMALLY ALIGNED WITH SAID APERTURES, MEANS ON SAID HOUSING ENGAGING AND LIFTING SAID SLIDE WHEREBY SAID WINDOW FORMED IN SAID BLADE IS PROGRESSIVELY MOVED UPWARDLY OUT OF ALIGNMENT WITH SAID APERTURES AND THE LIGHT RAYS FROM SAID SOURCE ARE PROGRESSIVELY BLOCKED FROM PASSAGE THROUGH SAID APERTURES, AND SAID SLIDE AND BLADE RETURNING TO THEIR RESPECTIVE ORIGINAL POSITIONS UPON DISENGAGEMENT OF SAID MEANS.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |