Pace, Incorporated

Frank Sylvia

John B Holdway

Francis V Bugg

A machine for setting eyelets and the like in printed circuit boards includes a generally U-shaped frame having a pair of spaced-apart support arms defining a workpiece receiving zone therebetween, a first tool movably mounted in one of the support arms, and a second tool fixedly mounted in the other support arm and axially aligned with the first tool. An adjustable torque screw is connected to the first tool for moving the first tool into aligned contact with the second tool at a pre-determined eyelet setting pressure. The adjustable torque screw insures that the eyelet setting pressure does not exceed the pre-determined eyelet setting pressure despite continued rotation of the adjustable torque screw.

Fused eyeletting machine

Combined power source and tool holder

A suction-type desoldering device includes an elongated tubular heater assembly secured to the forward end of a hollow handle by a radial flange on the assembly. A removable solder collecting chamber adapted to have a vacuum created therein is disposed within the handle and has an open end connected in solder flow communication with the heater assembly by means of a compressible sealing member disposed between the flange and the open end of the chamber. The heater assembly includes a tubular sleeve secured to and extending through the flange adjacent the seal. A tubular support having a length of electric resistance heating wire wrapped therearound is mounted coaxially within and spaced from the tubular sleeve and has one end thereof extending freely into the collection chamber and the other end thereof receiving a removable tubular desoldering tip. Wires connecting the heating wire to a source of electrical energy pass through an opening in the sleeve communicating with a radial groove in the surface of the sealing member engaging the flange. The seal is compressed by biasing means in the handle to such an extent that the groove closes tightly about the connecting wires to block the passage of air through the groove into the heater assembly and collection chamber.

Desoldering device and improved heater assembly therefor

An electric heater assembly for tools having a removable heated tip includes a tubular metal base having an open end adapted to removably receive and hold the end of the tool tip. A coating of ceramic electrical insulation material is provided on a portion of the exterior of the base and a length of Nickel-Iron alloy resistance wire is wound on the ceramic coated portion. Electrical lead wires are connected in lapped relationship to the respective ends of the resistance wire. Each lead wire includes a first portion lying between several turns of resistance wire and the ceramic coating on the base and a second portion bent back and overlaying the several turns of resistance wire. The second portion is wrapped with at least one additional turn of the resistance wire. A coating of ceramic electrical insulation material is provided over the resistance wire and the terminals to seal the same from the deliterious effects of the atmosphere.

Growing community of inventors

Columbia, MD, United States of America

Frank Sylvia