The Boeing Company

Scott A Miller

Thomas R Cundiff

Donald Lloyd Conaway

Karl Marius Nelson

Mark Alan Stuart

Examples provide a method and apparatus for fastener pin removal. A fastener pin removal tool includes a tool body having a workpiece interface surface, a threaded hole and opposing side edges. A fitting is coupled to the end of the threaded screw that is proximate the workpiece interface surface. The fitting includes a keyhole-slot configured to receive the head of a pin. The keyhole-slot defines a set of spaced-apart jaws configured to engage the head of the pin that is received within the keyhole-slot. A rotational end-piece is coupled to the threaded screw and rotates to cause the fitting and the set of spaced-apart jaws to pull the head of the pin received within the keyhole-slot. As the rotational end-piece pulls the pin head, the pin is removed from a workpiece.

Fastener pin removal tool

A method for forming a plurality of composite parts via resin transfer molding in a single molding cycle. The method includes the steps of using a mold having first and second mold members that cooperate to house a plurality of shims and placing a plurality of preform workpiece into the mold cavity such that at least one of the shims is disposed between each of an adjacent pair of the preform workpieces. A liquid resin is then injected into the mold cavity and subsequently cured to thereby form a cured workpiece matrix that is composed of a plurality of semi-finished composite parts and at least one shim separating the plurality of semi-finished composite parts from one another.

Resin transfer molding multi-part/shim tooling (RTM-MPST)

The present invention relates to an index/seal pin indexed precisely in a resin transfer molding die to assure the desired resin-to-fiber ratio in the mold part, and, thereby, to produce reliably and consistently a part of minimum weight with adequate strength. The index/seal pin seals via replaceable O-rings on the threaded stem of the pin to prevent low viscosity resin from exiting a mold cavity and invading the threads, bolts, pins, or other elements of the internal mandrel. The pin also assures accurate positioning of a mandrel in the die cavity while it allows the entire inner mandrel to be enclosed and sealed within the mold cavity, simplifying the sealing system.

Accurate positioning using a seal pin for RTM mold dies

The present invention relates to a seal pin indexed precisely in a resin transfer molding die to assure the desired resin-to-fiber ratio in the mold part, and, thereby, to produce reliably and consistently a part of minimum weight with adequate strength. The index/resin seal pin of the present invention for RTM mold dies is novel in that it provides the seal (via replaceable O-rings) on the threaded stem of the pin to prevent low viscosity resin from invading the threads, bolts pins, or other elements of the internal mandrel. The pin allows the entire inner mandrel to be enclosed and sealed within the mold cavity, simplifying the sealing system. The invention also relates to a method for using the seal pin in a resin transfer molding process.

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Auburn, WA, United States of America

Scott A Miller