Watlow Electric Manufacturing Company

Matt Kenchel

Kevin Ptasienski

Martin Wallinger

Allen Norman Boldt

Elias Russegger

Kenneth F Fennewald

Gernot Antosch

Gerhard Schefbanker

Wolfgang Poeschl

Allen Boldt

Kenneth Fennewald

A method of forming a layered heater assembly includes: forming a plurality of layers onto a substrate, the plurality of layers including a resistive element layer; forming electrical terminations in contact with the resistive element layer; securing a protective cover over the layers using a laser welding process, wherein edges of the protective cover are welded circumferentially around raised end portions of the substrate and welded longitudinally along a slotted portion of the substrate; securing a pair of lead wires to the electrical terminations; and securing a lead cap assembly around the pair of lead wires and to the protective cover using a laser welding process.

Moisture resistant layered sleeve heater and method of manufacture thereof

A heater assembly is provided that includes a substrate having opposed end portions defining raised flanges, a slot extending between the opposed end portions, and opposed chamfered surfaces extending along the slot and across the raised flanges. A plurality of layers are disposed onto the substrate, along with a pair of terminal pads. A protective cover defining at least one aperture is disposed over the layers and is secured to the raised flanges and the opposed chamfered surfaces of the substrate, and the aperture is disposed proximate the terminal pads. A pair of lead wires is secured to the pair of terminal pads, and a lead cap assembly is disposed around the pair of lead wires and is secured to the protective cover.

A heater assembly is provided that includes a substrate having opposed end portions defining raised flanges, a slot extending between the opposed end portions, and opposed chamfered surfaces extending along the slot and across the raised flanges. In one form, a plurality of layers are disposed onto the substrate, along with a pair of terminal pads. A protective cover defining at least one aperture is disposed over the layers and is secured to the raised flanges and the opposed chamfered surfaces of the substrate, and the aperture is disposed proximate the terminal pads. A pair of lead wires is secured to the pair of terminal pads, and a lead cap assembly is disposed around the pair of lead wires and is secured to the protective cover. Methods of manufacturing the heater assembly are also provided in accordance with the present disclosure.

Moisture resistant layered sleeve heater and method of manufacturing thereof

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Wentzville, MO, United States of America

Matt Kenchel