US3139820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Print hammer mechanism
Assignee: Holley Performance Products Inc
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Filing: 1961-10-16
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Granted: 1964-07-07
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Milton J Kittler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:15
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/26; B41J9/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A PRINTER HAVING A FRAME MEMBER, A ROTATING DRUM HAVING CHARACTERS FORMED THEREON AND A ROTATING CAM, A PRINT HAMMER MECHANISM ADAPTED FOR ACTUATION ON A LINE BETWEEN THE AXES OF SAID CAM AND SAID DRUM, SAID HAMMER MECHANISM COMPRISING A SPRING-MOUNTED CAM FOLLOWER, A PRINT HAMMER ASSEMBLY SPACED FROM SAID FOLLOWER, A FIXED STOP INTERMEDIATE SAID FOLLOWER AND SAID PRINT HAMMER ASSEMBLY, AND AN INTERPOSER DEVICE ADAPTED TO BE AT TIMES POSITIONED BETWEEN SAID CAM FOLLOWER AND SAID PRINT HAMMER ASSEMBLY, SAID PRINT HAMMER ASSEMBLY BEING GUIDED FOR MOVEMENT ALONG SAID LINE OF ACTION AND INCLUDING FIRST AND SECOND MEMBERS CONNECTED BY LOST MOTION MEANS, FIRST SPRING MEANS FOR URGING SAID HAMMER ASSEMBLY TOWARD SAID CAM AND AGAINST SAID STOP, AND SECOND SPRING MEANS FOR URGING SAID FIRST AND SECOND MEMBERS APART SO AS TO TAKE UP SAID LOST MOTION.
Claim 2
Dependent Claim
142 words
IN A PRINTER HAVING A FRAME MEMBER, A ROTATING DRUM HAVING CHARACTERS FORMED THEREON AND A ROTATING CAM, A PRINT HAMMER MECHANISM ADAPTED FOR ACTUATION ON A LINE BETWEEN THE AXES OF SAID CAM AND SAID DRUM, SAID HAMMER MECHANISM COMPRISING A SPRING-MOUNTED CAM FOLLOWER, A PRINT HAMMER ASSEMBLY SPACED FROM SAID FOLLOWER, A FIXED STOP INTERMEDIATE SAID FOLLOWER AND SAID PRINT HAMMER ASSEMBLY, AND AN INTERPOSER DEVICE ADAPTED TO BE AT TIMES POSITIONED BETWEEN SAID CAM FOLLOWER AND SAID PRINT HAMMER ASSEMBLY, SAID PRINT HAMMER ASSEMBLY BEING GUIDED FOR MOVEMENT ALONG SAID LINE OF ACTION AND INCLUDING FIRST AND SECOND MEMBERS CONNECTED BY LOST MOTION MEANS, FIRST SPRING MEANS FOR URGING SAID HAMMER ASSEMBLY TOWARD SAID CAM AND AGAINST SAID STOP, AND SECOND SPRING MEANS FOR URGING SAID FIRST AND SECOND MEMBERS APART SO AS TO TAKE UP SAID LOST MOTION.
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |