Patent US3710644A successfully refreshed from Google Patents.
US3710644A
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US
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Control setting apparatus
Assignee: McDonnell Douglas Corp
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Filing: 1971-07-29
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Granted: 1973-01-16
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Expires: 1991-07-29
Abstract
Abstract A rotatable detent moved to a preselected position provides a stop for the positioning of flap-slat control handles. A latch pin on the handle fits into the detent when the handle has been moved to this position of alignment. A thumb wheel is used to rotate a worm drive for moving the detent to an infinite number of positions. Additional gearing is provided to rotate an indicator so that the exact position of the detent, and the flapslat positions, may be readily and easily determined.
Inventors
- 👤 J Downing
- 👤 C Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:49
CPC Classifications
G; G05; G05G; G05G23/00; B; B64; B64C; B64C13/00; B64C13/02; B64C13/04; B64C13/042; B64C13/0425; G05G1/00; G05G5/00; G05G5/12; G05G2700/00; G05G2700/02; G05G2700/04; G05G2700/10; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20576; Y10T74/20582; Y10T74/2063; Y10T74/20636; Y10T74/20672
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
A control setting apparatus comprising a control handle pivotally mounted on an axis, a detent member having a detent therein, said detent member being pivotally mounted on said control handle axis, said handle having a latch pin engageable with said detent upon rotation of said handle for alignment therewith, and means for selectively positioning said detent member along the arc of rotation of said handle.
Claim 2
Dependent Claim
65 words
A control setting apparatus comprising a control handle pivotally mounted on an axis, a detent member having a detent therein, said detent member being pivotally mounted on said control handle axis, said handle having a latch pin engageable with said detent upon rotation of said handle for alignment therewith, and means for selectively positioning said detent member along the arc of rotation of said handle.
Claim 3
Dependent Claim
27 words
A control setting apparatus as in claim 1, wherein said means for selectively positioning said detent includes crank means for rotating said detent member to preselected positions.
Claim 4
Dependent Claim
49 words
A control setting apparatus as in claim 2 wherein said crank means includes a thumb wheel rotatably operable to rotate a worm shaft with a worm drive thereon, said detent member having a worm wheel sector engageable with and driven by said worm drive for rotatively positioning said detent.
Claim 5
Dependent Claim
23 words
A control setting apparatus as in claim 3 wherein said thumb wheel is interconnected with and rotates said worm shaft through helical gears.
Claim 6
Dependent Claim
25 words
A control setting apparatus as in claim 2 wherein said crank means also operates an indicia means for indicating the position of said detent member.
Claim 7
Dependent Claim
52 words
A control setting apparatus as in claim 5 wherein said indicia means includes a rotatable indicator wheel with indicia markings thereon, said indicator wheel being operatively connected to said thumb wheel through an input gear connected to said thumb wheel, an indicator ring gear on said indicator wheel, and idler gears therebetween.
Claim 8
Dependent Claim
35 words
A control setting apparatus as in claim 1 wherein said control handle is an aircraft slat actuation handle for setting slats at selected extended positions in accordance with desired aircraft maneuvers under predetermined flight conditions.
Claim 9
Dependent Claim
32 words
A control setting apparatus as in claim 1 wherein said handle is spring biased in a radially extendible neutral position to urge said latch pin into said detent when in alignment therewith.
References Cited (Backward Citations)
US1176077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |