US3322254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam operated repeat mechanism
Assignee: Royal Typewriter Co Inc
•
Filing: 1966-08-17
•
Granted: 1967-05-30
•
Expires: 1986-08-17
Abstract
No abstract record available.
Inventors
- 👤 Leo P Frechette
- 👤 Edgar G Lizotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:12
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A REPEAT MECHANISM FOR AN ELECTRIC TYPEWRITER HAVING A CONTINUOUSLY ROTATING POWER ROLL, AND A POWER UNIT CONNECTED TO DRIVE A SELECTED TYPEWRITER FUNCTION WHEN COUPLED TO SAID POWER ROLL, A ROCKABLE TRIP LEVER ADAPTED WHEN ROCKED TO EFFECT THE COUPLING OF SAID POWER UNIT WITH SAID POWER ROLL, A DEPRESSIBLE KEY LEVER FOR ROCKING SAID TRIP LEVER ONCE FOR EACH DEPRESSION, AND ALTERNATE MEANS FOR ROCKING SAID STRIP LEVER AT A CONTROLLED CYCLIC RATE COMPRISING, CAM MEANS, A ROCKABLE SUPPORT, MEANS FOR ROTATABLY MOUNTING SAID CAM MEANS ON SAID ROCKABLE SUPPORT, MANUALLY OPERABLE MEANS FOR ROCKING SAID SUPPORT THEREBY TO COUPLE SAID CAM MEANS TO SAID POWER ROLL WHEREBY SAID CAM MEANS IS ROTATED, SAID TRIP LEVER INCLUDING A CAM FOLLOWER OPERABLE BY SAID ROTATING CAM MEANS FOR REPEATEDLY ROCKING SAID TRIP LEVER FOR AS LONG AS SAID MANUALLY OPERABLE MEANS IS HELD OPERATIVE.
Claim 2
Dependent Claim
146 words
IN A REPEAT MECHANISM FOR AN ELECTRIC TYPEWRITER HAVING A CONTINUOUSLY ROTATING POWER ROLL, AND A POWER UNIT CONNECTED TO DRIVE A SELECTED TYPEWRITER FUNCTION WHEN COUPLED TO SAID POWER ROLL, A ROCKABLE TRIP LEVER ADAPTED WHEN ROCKED TO EFFECT THE COUPLING OF SAID POWER UNIT WITH SAID POWER ROLL, A DEPRESSIBLE KEY LEVER FOR ROCKING SAID TRIP LEVER ONCE FOR EACH DEPRESSION, AND ALTERNATE MEANS FOR ROCKING SAID STRIP LEVER AT A CONTROLLED CYCLIC RATE COMPRISING, CAM MEANS, A ROCKABLE SUPPORT, MEANS FOR ROTATABLY MOUNTING SAID CAM MEANS ON SAID ROCKABLE SUPPORT, MANUALLY OPERABLE MEANS FOR ROCKING SAID SUPPORT THEREBY TO COUPLE SAID CAM MEANS TO SAID POWER ROLL WHEREBY SAID CAM MEANS IS ROTATED, SAID TRIP LEVER INCLUDING A CAM FOLLOWER OPERABLE BY SAID ROTATING CAM MEANS FOR REPEATEDLY ROCKING SAID TRIP LEVER FOR AS LONG AS SAID MANUALLY OPERABLE MEANS IS HELD OPERATIVE.
References Cited (Backward Citations)
US1077005A
Cited
US1753495A
Cited
US2620056A
Cited
US2714948A
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US2728435A
Cited
US2951572A
Cited
US3021934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |