US3237747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam operated ribbon vibrator and ribbon feed mechanism
Assignee: Royal Typewriter Co Inc
•
Filing: 1964-09-14
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Granted: 1966-03-01
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Leo P Frechette
- 👤 Chester A Simpson
- 👤 Robert J Slabinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:23
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/04; B41J35/10; B41J35/12; B41J35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
TYPEWRITER MECHANISM HAVING A POWER ROLL ADAPTED FOR DRIVING TYPE ACTIONS AND FOR PREVENTING THE ELEVATED LIMIT POSITION OF A RIBBON VIBRATOR FROM TERMINATING THE TYPE ACTIONS COMPRISING, A RIBBON VIBRATOR MOUNTED FOR MOVEMENT TOWARD A LIMIT POSITION RELATIVE TO A PRINTING POINT ON SAID TYPEWRITER, A SHAFT, A U-BAR MOUNTED ON SAID SHAFT FOR ROCKING MOTION, SAID U-BAR BEING ENGAGEABLE BY ELEMENTS OF DRIVEN TYPE ACTIONS, SAID ACTIONS ROCKING SAID U-BAR NON-UNIFORMLY, A CAM MEMBER SECURED TO SAID SHAFT AND HAVING A CAMMING SURFACE COMPRISING A FIRST ARCUATE PORTION AND A SECOND DWELL PORTION, A FOLLOWER MEANS BIASED INTO ENGAGEMENT WITH SAID
Claim 2
Dependent Claim
103 words
TYPEWRITER MECHANISM HAVING A POWER ROLL ADAPTED FOR DRIVING TYPE ACTIONS AND FOR PREVENTING THE ELEVATED LIMIT POSITION OF A RIBBON VIBRATOR FROM TERMINATING THE TYPE ACTIONS COMPRISING, A RIBBON VIBRATOR MOUNTED FOR MOVEMENT TOWARD A LIMIT POSITION RELATIVE TO A PRINTING POINT ON SAID TYPEWRITER, A SHAFT, A U-BAR MOUNTED ON SAID SHAFT FOR ROCKING MOTION, SAID U-BAR BEING ENGAGEABLE BY ELEMENTS OF DRIVEN TYPE ACTIONS, SAID ACTIONS ROCKING SAID U-BAR NON-UNIFORMLY, A CAM MEMBER SECURED TO SAID SHAFT AND HAVING A CAMMING SURFACE COMPRISING A FIRST ARCUATE PORTION AND A SECOND DWELL PORTION, A FOLLOWER MEANS BIASED INTO ENGAGEMENT WITH SAID
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |