US4088039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratio changing mechanism
Assignee: Boeing Co
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Filing: 1977-02-14
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Granted: 1978-05-09
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Expires: 1997-02-14
Abstract
Abstract A ratio changing mechanism is provided for combining two mechanical input signals to produce an output signal. The mechanism includes a first crank mounted on a pivoted link with an input member mounted on the first crank. The mechanical inputs are applied to the input member which moves the crank in such a manner that an output signal is transmitted from one arm of the crank. Movement of the first crank is modified by connection of the other crank arm to a second crank which is adjustable in position to change the ratio of the output to the combined input signals.
Inventors
- 👤 Per A. Bolang
- 👤 Alan B. C. Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:08
CPC Classifications
G; G05; G05G; G05G11/00; F; F16; F16H; F16H21/00; F16H21/10; F16H21/44; F16H37/00; F16H37/12; F16H37/14; G05G7/00; G05G7/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20366; Y10T74/20558; Y10T74/2057; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A ratio changing mechanism for combining mechanical input signals, said mechanism comprising a first link having one end pivotally mounted on a fixed support, a first crank member having a pivot point mounted on the other end of said first link and having two arms, a second link pivotally mounted on the pivot point of said first crank member and adapted to have said mechanical input signals applied thereto, means for transmitting an output signal from one of said arms of the first crank member, a second crank member having a pivot point mounted on a fixed support, a third link having one end pivotally attached to the other arm of the first crank member and the other end pivotally attached to one arm of said second crank member, and means for moving the other arm of the second crank member to adjust the ratio of the output signal to the combined input signals.
Claim 2
Dependent Claim
154 words
A ratio changing mechanism for combining mechanical input signals, said mechanism comprising a first link having one end pivotally mounted on a fixed support, a first crank member having a pivot point mounted on the other end of said first link and having two arms, a second link pivotally mounted on the pivot point of said first crank member and adapted to have said mechanical input signals applied thereto, means for transmitting an output signal from one of said arms of the first crank member, a second crank member having a pivot point mounted on a fixed support, a third link having one end pivotally attached to the other arm of the first crank member and the other end pivotally attached to one arm of said second crank member, and means for moving the other arm of the second crank member to adjust the ratio of the output signal to the combined input signals.
Claim 3
Dependent Claim
35 words
A mechanism as defined in claim 1 in which said second link is pivotally mounted at a point intermediate its ends, and means for applying an input signal to each end of the second link.
Claim 4
Dependent Claim
29 words
A mechanism as defined in claim 1 in which the second crank arm is movable to a position in which the output signal is zero for all input signals.
Claim 5
Dependent Claim
43 words
A mechanism as defined in claim 3 in which the output signal becomes zero when the second crank arm is moved to a position such that said other end of the third link is aligned with the pivotal mounting of the first link.
Claim 6
Dependent Claim
43 words
A mechanism as defined in claim 4 in which said second crank arm is movable to a position in which the third link is beyond said aligned position to cause said ratio of the output signal to the input signals to become negative.
References Cited (Backward Citations)
US2625349A
Cited
FR1165627A
Cited
US3101821A
Cited
US3138349A
Cited
US3168265A
Cited
US3618419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |