Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1993-04-12
1995-01-10
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
92 23, 292302, 292335, B64C 356
Patent
active
053799690
ABSTRACT:
A plurality of radially extendable/retractable lock bolts (LB) are carried by a piston head (PH). A cylinder body (CB) in which the piston head (PH) is located includes a lock-bolt cavity (52) or cavities. When the actuator is in a lock position (fully extended or fully retracted), the lock bolt or bolts (LB) are in radial alignment with the lock bolt cavity or cavities. A locking piston (LP) within the actuator is movable axially to place a bolt block (62) radially inwardly of the lock bolt or bolts (LB), to in such position block the lock bolt or bolts (LB) against a radial inward movement out from the lock bolt cavity (52) or cavities. The locking piston (LP) includes a piston face (60) against which hydraulic fluid pressure may be directed, to move the locking piston (LP) axially, for retracting the bolt block (62) out from its position radially inwardly of the lock bolt or bolts (LB). This frees the lock bolt or bolts (LB) so that they can move radially inwardly, out from the lock bolt cavity 52 or cavities.
REFERENCES:
patent: 3320861 (1967-05-01), Johnson et al.
patent: 3584544 (1971-06-01), Haberman
patent: 3812766 (1974-05-01), Weiss
patent: 4167891 (1979-09-01), Kamimura
patent: 4392556 (1983-07-01), Deutch
patent: 4470340 (1984-09-01), Goans
patent: 4712471 (1987-12-01), Johnson
patent: 4784044 (1988-11-01), Klement
patent: 5025708 (1991-06-01), Smith et al.
patent: 5056418 (1991-10-01), Granger et al.
patent: 5081910 (1992-01-01), D'Asoenzo, Jr.
patent: 5097748 (1992-03-01), Koch et al.
patent: 5176227 (1993-01-01), Kohler
Marx Alan D.
Renzelmann Michael E.
Smith Mark H.
Barefoot Galen L.
Barnard Delbert J.
The Boeing Company
LandOfFree
Hydraulic actuator with mechanical lock and installation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic actuator with mechanical lock and installation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic actuator with mechanical lock and installation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-845760