Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1976-02-02
1977-10-25
Reynolds, Bruce A.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
29626, 228212, 228223, B23K 3102, H05K 320
Patent
active
040557251
ABSTRACT:
Electrical and electronic components loosely mounted in a circuit board with their leads extending through holes in the board are temporarily stabilized in position in the board by treating the board and component leads at least in part with a selected material in liquid state, and hardening the material to form a solid, solder-compatible, non-metallic cement having a melting point below that of solder, coupling the board and leads to one another. The component leads may then be trimmed to finish length, and the components soldered in place. Alternatively the board may be placed in storage for future soldering. The cement is melted and displaced simultaneously with soldering. Preferred as cement are naturally occurring and synthetic waxes having a melting point in the range of about 120-195.degree. F. In a preferred embodiment of the invention compatible flux active agents and/or wetting agents may be intermixed with the liquid material whereby the board and component leads may be fluxed simultaneously with treating to temporarily stabilize the components in the board.
REFERENCES:
patent: 3502787 (1970-03-01), Reach et al.
patent: 3568295 (1971-03-01), Morah
patent: 3574934 (1971-04-01), DeRose
patent: 3616533 (1971-11-01), Heap et al.
patent: 3704515 (1972-12-01), Nelson
patent: 3872236 (1975-03-01), Swengel et al.
W. Nussle, "Candle Crafting from an Art to a Science," Bannes & Co. 1971, Chpt. 6.
Hollis Engineering, Inc.
Reynolds Bruce A.
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