Browse Prior Art Database

Protective Coating Applicator

IP.com Disclosure Number: IPCOM000094826D
Original Publication Date: 1965-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Taylor, DG: AUTHOR

Abstract

The apparatus includes a pneumatically actuated dispenser for depositing epoxy resin on SLT boards. The latter are conveyed beneath the dispenser. The SLT boards have upstanding pins. The dispenser has a plurality of dispensing nozzles extending downwardly and passing between the pins.

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Protective Coating Applicator

The apparatus includes a pneumatically actuated dispenser for depositing epoxy resin on SLT boards. The latter are conveyed beneath the dispenser. The SLT boards have upstanding pins. The dispenser has a plurality of dispensing nozzles extending downwardly and passing between the pins.

Pressurizing the reservoir causes epoxy to flow from the nozzles onto each board where it flows laterally to evenly coat the boards. The apparatus also has a vacuum cutoff. By first depressurizing the reservoir and then applying a vacuum to it, the flow of epoxy is stopped. The epoxy is then sucked back into the nozzles slightly. This action thus provides rapid flow stoppage without allowing any drippage and without allowing enlarged globs of epoxy to form on the nozzle ends. Such globs, if allowed to form, interfere with subsequent coating of additional boards. This is because the diameters of the nozzles relative to the lateral spacing between adjacent pins are large so that any globs on the ends of the nozzles would rub off on the pins.

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