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Hot Wax Dispenser for Applying Wax Coating to a Metal Sealing Ring and Guide for Holding Dispenser Spaced Above the Ring for a Selected Coating Thickness

IP.com Disclosure Number: IPCOM000037895D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-30
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Appolonia, MD: AUTHOR

Abstract

In some circuit modules, an upper enclosure part and a lower enclosure part are joined with a sealing ring located between oppositely facing flanges on the two parts. The sealing ring has a generally square shape with rounded corners as seen looking downward into a plane of a flange. It has e.g. a C shape in section as seen looking horizontally parallel to the plane of a flange, and the upper and lower surfaces of the C shape form a sealing contact with the two flanges. Before the seal and the two parts are assembled, wax is applied to the sealing ring by means of a wax dispensing tool and a structure that holds the sealing ring and guides the wax dispensing tool.

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Hot Wax Dispenser for Applying Wax Coating to a Metal Sealing Ring and Guide for Holding Dispenser Spaced Above the Ring for a Selected Coating Thickness

In some circuit modules, an upper enclosure part and a lower enclosure part are joined with a sealing ring located between oppositely facing flanges on the two parts. The sealing ring has a generally square shape with rounded corners as seen looking downward into a plane of a flange. It has e.g. a C shape in section as seen looking horizontally parallel to the plane of a flange, and the upper and lower surfaces of the C shape form a sealing contact with the two flanges. Before the seal and the two parts are assembled, wax is applied to the sealing ring by means of a wax dispensing tool and a structure that holds the sealing ring and guides the wax dispensing tool.

The wax dispensing tool is similar to a hand held applicator for hot glue. A hand held version of the tool has a piston grip. A heater section which is located above the grip receives sticks of solid wax, and a bead of melted wax is fed through a nozzle located below the grip.

The holder has an upwardly facing groove that receives the sealing ring and holds it in position. A track mechanism is located along both edges of the groove at a suitable distance above the uppermost surface of the sealing ring. The nozzle of the wax dispenser is adapted to ride on the track with the tip of the nozzle held a predetermined distance above the uppermost surface of...