Work holders – With fluid means – Cylinder-piston means directly moves jaw
Reexamination Certificate
2006-05-23
2006-05-23
Wilson, Lee D. (Department: 3723)
Work holders
With fluid means
Cylinder-piston means directly moves jaw
C254S018000, C254S048000
Reexamination Certificate
active
07048266
ABSTRACT:
Disclosed is a fastener and method for temporarily fastening a plurality of workpieces. The fastener uses pressurized fluid to facilitate the actuating clamping motion of a temporary fastener as opposed to conventional mechanically actuation devices. The fastener of the present invention generally comprises a housing, a spreader member connected to the housing, a piston located within said housing and capable of movement therein in response to the introduction of pressurized fluid within the housing, and a pair of expandable flexible fingers connected at one end to the piston and extending outside the housing where fluid-actuated movement of the piston causes the fingers to partially retract within the housing and wedge within the aligned apertures of the workpieces to temporarily clamp the workpieces together. A check valve within the piston assembly prevents the escape of pressurized fluid from within the fluid pressure chamber when the source of pressurized fluid is removed. The temporary fastener provides an instant load-release feature so that manual removal of the fastener is provided.
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Catalog (An Pages) Wedgelock Temporary Fastening Systems & Drilling Aids (Monogram Aerospace Fastenersimg id="PRIVATE-USE-CHARACTER-00001" he="7.20mm" wi="8.47mm" file="US07048266-20060523-Parenclosest.TIF" alt="private use character Parenclosest" img-content="character" img-format="tif" ?Los Angeles, CA)-1998).
Benni Todd A.
Earp III Robert H.
McDonald Hopkins Co. LPA
Monogram Aerospace Fasteners, Inc.
Wilson Lee D.
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