Patent US3295385A successfully refreshed from Google Patents.
US3295385A
Expired / Lapsed
US
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Automatic anti-friction dual ratio motion converter
Assignee: Boeing Co
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Filing: 1964-12-16
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Granted: 1967-01-03
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Expires: 1984-12-16
Abstract
No abstract record available.
Inventors
- 👤 Robert W Jenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:08
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2247; F16H25/2266; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18704
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A DUAL RATIO MOTION CONVERTER FOR CONVERTING ROTARY MOTION INTO RECTILINEAR MOTION, COMPRISING IN COMBINATION: (A) A FIRST THREADED MEMBER, (B) A SECOND THREADED MEMBER HAVING A DIFFERENT PITCH DIAMETER FROM SAID FIRST MEMBER, (C) SAID FIRST MEMBER DISPOSED IN THREAD ENGAGING RELATIONSHIP WITH SAID SECOND MEMBER, AND (D) RESTRAINING MEANS YIELDINGLY ENGAGING SAID SECOND MEMBER FOR APPLYING A RESTRAINING FORCE TO SAID SECOND MEMBER FOR RESTRAINING THE ROTATION THEREOF SO AS TO PROVIDE A FIRST GIVEN RATIO OF LINEAR DISPLACEMENT TO REVOLUTIONS OF SAID FIRST MEMBER, AND PERMITTING SAID SECOND MEMBER TO ROTATE WHEN A PREDETERMINED INCREASE OF TORQUE IS APPLIED TO SAID FIRST MEMBER SO THAT ROTATION OF SAID SECOND MEMBER SIMULTANEOUSLY WITH ROTATION OF SAID FIRST MEMBER PROVIDES A SECOND RATIO OF LINEAR DISPLACEMENT TO REVOLUTIONS OF SAID FIRST MEMBER.
Claim 2
Dependent Claim
133 words
A DUAL RATIO MOTION CONVERTER FOR CONVERTING ROTARY MOTION INTO RECTILINEAR MOTION, COMPRISING IN COMBINATION: (A) A FIRST THREADED MEMBER, (B) A SECOND THREADED MEMBER HAVING A DIFFERENT PITCH DIAMETER FROM SAID FIRST MEMBER, (C) SAID FIRST MEMBER DISPOSED IN THREAD ENGAGING RELATIONSHIP WITH SAID SECOND MEMBER, AND (D) RESTRAINING MEANS YIELDINGLY ENGAGING SAID SECOND MEMBER FOR APPLYING A RESTRAINING FORCE TO SAID SECOND MEMBER FOR RESTRAINING THE ROTATION THEREOF SO AS TO PROVIDE A FIRST GIVEN RATIO OF LINEAR DISPLACEMENT TO REVOLUTIONS OF SAID FIRST MEMBER, AND PERMITTING SAID SECOND MEMBER TO ROTATE WHEN A PREDETERMINED INCREASE OF TORQUE IS APPLIED TO SAID FIRST MEMBER SO THAT ROTATION OF SAID SECOND MEMBER SIMULTANEOUSLY WITH ROTATION OF SAID FIRST MEMBER PROVIDES A SECOND RATIO OF LINEAR DISPLACEMENT TO REVOLUTIONS OF SAID FIRST MEMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |