US3232405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter escapement mechanism with spacing means
Assignee: International Business Machines Corp
•
Filing: 1963-06-26
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Granted: 1966-02-01
•
Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Neil D Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:13
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/34; B41J19/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
AN ESCAPEMENT MECHANISM FOR ADVANCING A TYPEWRITER CARRIER THROUGH A STANDARD ESCAPEMENT DISTANCE IN A CHARACTER SPACING DIRECTION AND HAVING SPACING MEANS OPERATIVE WHEN ACTUATED TO ADVANCE SAID TYPEWRITER CARRIAGE IN SAID CHARACTER SPACING DIRECTION BY A DISTANCE WHICH IS LESS THAN SAID STANDARD ESCAPEMENT DISTANCE COMPRISING: AN ESCAPEMENT MEMBER HAVING TEETH THEREON AND MOUNTING SAID TYPEWRITER CARRIER; FIRST MEANS BIASING SAID ESCAPEMENT MEMBER FOR MOVEMENT IN SAID CHARACTER SPACING DIRECTION; AN ESCAPEMENT PAWL HAVING A TIP PORTION AND AN ELONGATED SLOT THEREIN; A STATIONARY MOUNTING STUD PROJECTING INTO SAID ELONGATED SLOT WHEREBY SAID ESCAPEMENB PAWL IS MOUNTED FOR LONGITUDINAL AND PIVOTAL MOVEMENT; SECOND MEANS BIASING SAID ESCAPEMENT PAWL FOR MOVEMENT IN A DIRECTION OPPOSITE TO SAID CHARACTER SPACING DIRECTION AND SAID TIP PORTION OF SAID ESCAPEMENT PAWL INTO ENGAGEMENT WITH SAID TEETH ON SAID ESCAPEMENT MEMBER; A PLURALITY OF STOP MEANS FOR LIMITING LONGITUDINAL MOVEMENT OF SAID ESCAPEMENT PAWL IN SAID CHARACTER SPACING DIRECTION AND SAID DIRECTION OPPOSITE THERETO; SAID STOP MEANS COMPRISING A PLURALITY OF ABUTMENT SURFACES CARRIED BY SAID ESCAPEMENT PAWL AND A PLURALITY OF STOP SURFACES; FIRST MEANS FOR PIVOTING SAID ESCAPEMENT PAWL ABOUT SAID STUD TO MOVE SAID TIP PORTION OUT OF ENGAGEMENT WITH SAID TEETH OF SAID ESCAPEMENT MEMBER, PERMIT SAID SECOND BIASING MEANS TO ADVANCE SAID ESCAPEMENT
Claim 2
Dependent Claim
214 words
AN ESCAPEMENT MECHANISM FOR ADVANCING A TYPEWRITER CARRIER THROUGH A STANDARD ESCAPEMENT DISTANCE IN A CHARACTER SPACING DIRECTION AND HAVING SPACING MEANS OPERATIVE WHEN ACTUATED TO ADVANCE SAID TYPEWRITER CARRIAGE IN SAID CHARACTER SPACING DIRECTION BY A DISTANCE WHICH IS LESS THAN SAID STANDARD ESCAPEMENT DISTANCE COMPRISING: AN ESCAPEMENT MEMBER HAVING TEETH THEREON AND MOUNTING SAID TYPEWRITER CARRIER; FIRST MEANS BIASING SAID ESCAPEMENT MEMBER FOR MOVEMENT IN SAID CHARACTER SPACING DIRECTION; AN ESCAPEMENT PAWL HAVING A TIP PORTION AND AN ELONGATED SLOT THEREIN; A STATIONARY MOUNTING STUD PROJECTING INTO SAID ELONGATED SLOT WHEREBY SAID ESCAPEMENB PAWL IS MOUNTED FOR LONGITUDINAL AND PIVOTAL MOVEMENT; SECOND MEANS BIASING SAID ESCAPEMENT PAWL FOR MOVEMENT IN A DIRECTION OPPOSITE TO SAID CHARACTER SPACING DIRECTION AND SAID TIP PORTION OF SAID ESCAPEMENT PAWL INTO ENGAGEMENT WITH SAID TEETH ON SAID ESCAPEMENT MEMBER; A PLURALITY OF STOP MEANS FOR LIMITING LONGITUDINAL MOVEMENT OF SAID ESCAPEMENT PAWL IN SAID CHARACTER SPACING DIRECTION AND SAID DIRECTION OPPOSITE THERETO; SAID STOP MEANS COMPRISING A PLURALITY OF ABUTMENT SURFACES CARRIED BY SAID ESCAPEMENT PAWL AND A PLURALITY OF STOP SURFACES; FIRST MEANS FOR PIVOTING SAID ESCAPEMENT PAWL ABOUT SAID STUD TO MOVE SAID TIP PORTION OUT OF ENGAGEMENT WITH SAID TEETH OF SAID ESCAPEMENT MEMBER, PERMIT SAID SECOND BIASING MEANS TO ADVANCE SAID ESCAPEMENT
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |