Patent US4861269A successfully refreshed from Google Patents.
US4861269A
Expired / Lapsed
US
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Sidestick flight control simulator
Assignee: Grumman Corp
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Filing: 1988-03-30
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Granted: 1989-08-29
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Expires: 2008-03-30
Abstract
Abstract A sidestick grip is slidably mounted to achieve adjustable fore-aft displacement. Separate spring devices are linked to the grip for simulating break-out force and force-deflection characteristics. Each spring device is linked to a damper for damping grip movement in the pitch and roll directions. The spring devices have (1) variable spring pre-load bias thereby enabling adjustments of the breakout forces; and (2) adjustable stick neutral position. Transducers measure grip deflection in roll and pitch for utilization by a computer.
Inventors
- 👤 Raymond P. Meenen, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:19
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
269 words
A sidestick flight control simulator comprising: a main stationary support; a sidestick grip mounted to a separate support located in spaced relation to the stationary support; a pitch assembly including (a) a first clevis for pivotally mounting the grip support thereby allowing pitch deflection of the grip, (b) first spring means for establishing break-away force and force-deflection characteristics, the spring means including a housing fastened to the first clevis and a displaceable rod pivotally mounted to a second clevis which is itself pivotally fastened to the grip support, the rod undergoing spring-loaded linked pitch displacement with the grip, (c) a first damper having its housing fastened to the housing of the first spring means, (d) first bracket means linking a rod of the damper to the spring means rod for damping motion of the spring means rod; a roll assembly including (a) means for pivotally mounting the first clevis in the roll direction, thereby allowing roll deflection of the grip, (b) a third clevis extending to the main stationary support and pivotally mounting a second spring means, (c) a rod of the second spring means having a first end pivotally mounted to the main stationary support while the housing thereof is pivotally mounted to the third clevis, wherein roll deflection of the grip results in spring-loaded linked displacement of the rod simulating force-displacement characteristics in the roll direction, (d) a second damper having its housing fastened to the housing of the second spring means, (e) second bracket means linking a rod of the second damper to the second spring means rod for damping motion of the second spring means.
Claim 2
Dependent Claim
269 words
A sidestick flight control simulator comprising: a main stationary support; a sidestick grip mounted to a separate support located in spaced relation to the stationary support; a pitch assembly including (a) a first clevis for pivotally mounting the grip support thereby allowing pitch deflection of the grip, (b) first spring means for establishing break-away force and force-deflection characteristics, the spring means including a housing fastened to the first clevis and a displaceable rod pivotally mounted to a second clevis which is itself pivotally fastened to the grip support, the rod undergoing spring-loaded linked pitch displacement with the grip, (c) a first damper having its housing fastened to the housing of the first spring means, (d) first bracket means linking a rod of the damper to the spring means rod for damping motion of the spring means rod; a roll assembly including (a) means for pivotally mounting the first clevis in the roll direction, thereby allowing roll deflection of the grip, (b) a third clevis extending to the main stationary support and pivotally mounting a second spring means, (c) a rod of the second spring means having a first end pivotally mounted to the main stationary support while the housing thereof is pivotally mounted to the third clevis, wherein roll deflection of the grip results in spring-loaded linked displacement of the rod simulating force-displacement characteristics in the roll direction, (d) a second damper having its housing fastened to the housing of the second spring means, (e) second bracket means linking a rod of the second damper to the second spring means rod for damping motion of the second spring means.
Claim 3
Dependent Claim
40 words
The structure set forth in claim 1 together with limit stops located in the first clevis for limiting pitch deflection of the grip; and further limit stops located in the main stationary support for limiting roll deflection of the grip.
Claim 4
Dependent Claim
28 words
The structure set forth in claim 1 together with means connected to the first and second spring means for adjusting roll and pitch neutral position of the grip.
Claim 5
Dependent Claim
29 words
The structure set forth in claim 1 together with means for adjusting the lateral position of the third clevis for varying the force versus deflection symmetry of the grip.
Claim 6
Dependent Claim
25 words
The structure set forth in claim 1 together with means mounted to the first and second spring means for adjustably simulating the break-out forces thereof.
Claim 7
Dependent Claim
25 words
The structure set forth in claim 1 together with means for slidably mounting the main stationary support thereby enabling diagonal fore-aft displacement of the grip.
Claim 8
Dependent Claim
24 words
The structure set forth in claim 1 together with a wrist rest mounted to the main stationary support in aligned proximity to the grip.
Claim 9
Dependent Claim
300 words
A sidestick flight control simulator comprising: a main stationary support; a sidestick grip mounted to a separate support located in spaced relation to the stationary support; means for slidably mounting the main stationary support thereby enabling diagonal fore-aft displacement of the grip; a wrist rest mounted to the main stationary support in aligned proximity to the grip; a pitch assembly including (a) a first clevis for pivotally mounting the grip support thereby allowing pitch deflection of the grip, (b) first spring means for establishing break-away force and force-deflection characteristics, the spring means including a housing fastened to the first clevis and a displaceable rod pivotally mounted to a second clevis which is itself pivotally fastened to the grip support, the rod undergoing spring-loaded linked pitch displacement with the grip, (c) a first damper having its housing fastened to the housing of the first spring means, (d) first bracket means linking a rod of the damper to the spring means rod for damping motion of the spring means rod; a roll assembly including (a) means for pivotally mounting the first clevis in the roll direction, thereby allowing roll deflection of the grip, (b) a third clevis extending to the main stationary support and pivotally mounting a second spring means, (c) a rod of the second spring means having a first end pivotally mounted to the main stationary support while the housing thereof is pivotally mounted to the third clevis, wherein roll deflection of the grip results in spring-loaded linked displacement of the rod simulating force-displacement characteristics in the roll direction, (d) a second damper having its housing fastened to the housing of the second spring means, (e) second bracket means linking a rod of the second damper to the second spring means rod for damping motion of the second spring means.
Claim 10
Dependent Claim
300 words
A sidestick flight control simulator comprising: a main stationary support; a sidestick grip mounted to a separate support located in spaced relation to the stationary support; means for slidably mounting the main stationary support thereby enabling diagonal fore-aft displacement of the grip; a wrist rest mounted to the main stationary support in aligned proximity to the grip; a pitch assembly including (a) a first clevis for pivotally mounting the grip support thereby allowing pitch deflection of the grip, (b) first spring means for establishing break-away force and force-deflection characteristics, the spring means including a housing fastened to the first clevis and a displaceable rod pivotally mounted to a second clevis which is itself pivotally fastened to the grip support, the rod undergoing spring-loaded linked pitch displacement with the grip, (c) a first damper having its housing fastened to the housing of the first spring means, (d) first bracket means linking a rod of the damper to the spring means rod for damping motion of the spring means rod; a roll assembly including (a) means for pivotally mounting the first clevis in the roll direction, thereby allowing roll deflection of the grip, (b) a third clevis extending to the main stationary support and pivotally mounting a second spring means, (c) a rod of the second spring means having a first end pivotally mounted to the main stationary support while the housing thereof is pivotally mounted to the third clevis, wherein roll deflection of the grip results in spring-loaded linked displacement of the rod simulating force-displacement characteristics in the roll direction, (d) a second damper having its housing fastened to the housing of the second spring means, (e) second bracket means linking a rod of the second damper to the second spring means rod for damping motion of the second spring means.
Claim 11
Dependent Claim
95 words
The structure set forth in claim 8 together with: means connected to the first and second spring means for adjusting roll and pitch neutral position of the grip; means for adjusting the lateral position of the third clevis for varying the force versus deflection symmetry of the grip; means mounted to the first and second spring means for adjustably simulating the break-out forces thereof; limit stops located in the first clevis for limiting pitch deflection of the grip; and further limit stops located in the main stationary support for limiting roll deflection of the grip.
Claim 12
Dependent Claim
21 words
The structure set forth in claim 9 together with transducer means for measuring deflection of the grip in pitch and roll.
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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) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |