Patent US4658567A successfully refreshed from Google Patents.
Patent US3141352A successfully refreshed from Google Patents.
US3141352A
Expired / Lapsed
US
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Self-regulating tension means
Assignee: North American Aviation Corp
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Filing: 1961-05-22
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Granted: 1964-07-21
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Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Robert F Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:55
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/26; B64C13/28; B64C13/30; B64C13/341; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20408; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
IN A FORCE TRANSMITTING SYSTEM; A FIRST MOMENT ARM MOUNTED FOR ROTATION ABOUT A RELATIVELY STATIONARY FIRST AXIS IN RESPONSE TO THE APPLICATION OF A WORK LOAD, RIGID SUPPORT MEANS MOUNTED FOR ROTATION ABOUT SAID FIRST AXIS, A SECOND MOMENT ARM MOUNTED ON SAID RIGID SUPPORT MEANS FOR ROTATION ABOUT A SECOND AXIS LOCATED PARALLEL TO AND REMOTELY FROM SAID FIRST AXIS, RIGID LINK MEANS CONNECTING THE EXTREMITIES OF SAID FIRST AND SECOND MOMENT ARMS WHEREBY ROTATION OF SAID FIRST MOMENT ARM ABOUT SAID FIRST AXIS IN RESPONSE TO A WORK LOAD PRODUCES ROTATION OF SAID SECOND MOMENT ARM ABOUT SAID SECOND AXIS, SAID LINK MEANS BEING SUBSTANTIALLY PARALLEL WITH A PLANE IN WHICH SAID FIRST AND SECOND AXES LIE AND SAID FIRST MOMENT ARM THEREBY DEFINING A FORCE PARALLELOGRAM, PRETENSIONED FORCE TRANSMITTING MEANS OPERATIVELY ASSOCIATED WITH SAID SECOND MOMENT ARM FOR TRANSMITTING WORK LOADS TO A REMOTE LOCATION IN RESPONSE TO THE APPLICATION OF SUCH LOADS TO SAID FIRST MOMENT ARM, AND TENSION MAINTAINING MEANS ADAPTED TO APPLY FORCE TO SAID RIGID SUPPORT
Claim 2
Dependent Claim
174 words
IN A FORCE TRANSMITTING SYSTEM; A FIRST MOMENT ARM MOUNTED FOR ROTATION ABOUT A RELATIVELY STATIONARY FIRST AXIS IN RESPONSE TO THE APPLICATION OF A WORK LOAD, RIGID SUPPORT MEANS MOUNTED FOR ROTATION ABOUT SAID FIRST AXIS, A SECOND MOMENT ARM MOUNTED ON SAID RIGID SUPPORT MEANS FOR ROTATION ABOUT A SECOND AXIS LOCATED PARALLEL TO AND REMOTELY FROM SAID FIRST AXIS, RIGID LINK MEANS CONNECTING THE EXTREMITIES OF SAID FIRST AND SECOND MOMENT ARMS WHEREBY ROTATION OF SAID FIRST MOMENT ARM ABOUT SAID FIRST AXIS IN RESPONSE TO A WORK LOAD PRODUCES ROTATION OF SAID SECOND MOMENT ARM ABOUT SAID SECOND AXIS, SAID LINK MEANS BEING SUBSTANTIALLY PARALLEL WITH A PLANE IN WHICH SAID FIRST AND SECOND AXES LIE AND SAID FIRST MOMENT ARM THEREBY DEFINING A FORCE PARALLELOGRAM, PRETENSIONED FORCE TRANSMITTING MEANS OPERATIVELY ASSOCIATED WITH SAID SECOND MOMENT ARM FOR TRANSMITTING WORK LOADS TO A REMOTE LOCATION IN RESPONSE TO THE APPLICATION OF SUCH LOADS TO SAID FIRST MOMENT ARM, AND TENSION MAINTAINING MEANS ADAPTED TO APPLY FORCE TO SAID RIGID SUPPORT
References Cited (Backward Citations)
NL24281C
Cited
US668447A
Cited
US841161A
Cited
US1291642A
Cited
US2169813A
Cited
GB590962A
Cited
US2549969A
Cited
FR1009222A
Cited
US2908183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |