Patent US3375757A successfully refreshed from Google Patents.
US3375757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuator, particularly for a mold in an injection-molding machine
Assignee: Individual
•
Filing: 1964-12-21
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Granted: 1968-04-02
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Florjancic Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:33
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/64; B29C45/68; B29C45/66; B29C45/70; Y; Y10; Y10S; Y10S425/00; Y10S425/223; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN ACTUATOR FOR A MEMBER MOUNTED FOR RECIPROCAL MOVEMENT COMPRISING A WORM SUPPORTED SUBSTANTIALLY FIXED IN SPACE, BEARING MEANS FOR SAID WORM TO ENABLE ROTATION ABOUT ITS CENTRAL AXIS, MEANS TO ROTATE SAID WORM, AND AT LEAST TWO TOOTHED PUSH RODS WITH THE TEETH OF EACH BEING IN MESH WITH SAID WORM, THE PUSH RODS BEING CONNECTED TO SAID MEMBER WHEREBY ROTATION OF SAID WORM PRODUCES A LINEAR MOTION OF SAID TOOTHED PUSH RODS RELATIVE THERETO TO DRIVE RECIPROCALLY SAID MEMBER BETWEEN EXTREME POSITIONS, THE DIAMETER OF THE WORM AND LEAD ANGLE OF THE TOOTHED PUSH RODS BEING SUCH AS TO PROVIDE A MECHANICAL ADVANTAGE SUITABLE TO PREVENT BACK PRESSURE ON THE MEMBER FROM MOVING THE RODS AND TURNING THE WORM.
Claim 2
Dependent Claim
121 words
AN ACTUATOR FOR A MEMBER MOUNTED FOR RECIPROCAL MOVEMENT COMPRISING A WORM SUPPORTED SUBSTANTIALLY FIXED IN SPACE, BEARING MEANS FOR SAID WORM TO ENABLE ROTATION ABOUT ITS CENTRAL AXIS, MEANS TO ROTATE SAID WORM, AND AT LEAST TWO TOOTHED PUSH RODS WITH THE TEETH OF EACH BEING IN MESH WITH SAID WORM, THE PUSH RODS BEING CONNECTED TO SAID MEMBER WHEREBY ROTATION OF SAID WORM PRODUCES A LINEAR MOTION OF SAID TOOTHED PUSH RODS RELATIVE THERETO TO DRIVE RECIPROCALLY SAID MEMBER BETWEEN EXTREME POSITIONS, THE DIAMETER OF THE WORM AND LEAD ANGLE OF THE TOOTHED PUSH RODS BEING SUCH AS TO PROVIDE A MECHANICAL ADVANTAGE SUITABLE TO PREVENT BACK PRESSURE ON THE MEMBER FROM MOVING THE RODS AND TURNING THE WORM.
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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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |