Tutco, Inc.

James Lee Sherrill

Michael Danko

H Keith Howard

Keith Howard

Ike Walker

R Devin Ridley

Ike D Walker

An electrical resistance heater assembly includes a heater housing forming a channel having a longitudinal axis for a fluid such as air to pass through and a heater support plate forming first and second levels in the heater housing. A first mica board assembly supporting a ribbon heater is mounted to the heater support plate at the first level and a second mica board assembly supporting a ribbon heater is mounted to the heater support plate at the second level. The first level is positioned adjacent an inlet of the heater housing and the second level is positioned adjacent an outlet of the heater housing. The first level and a side of the heater housing form a passageway for air to enter the heater housing and be directed to the ribbons of the second level, thereby allowing air to bypass the heater ribbons of the first level.

Two level electric resistance heater and method of use

An open coil electrical resistance heater uses a number of offset insulators to support the coil of the heater. The offset insulators configure the run of coil in a sinusoidal shape to hold the insulators in a more secure manner and reduce vibration and noise generation during heat operation. The sinusoidal configuration of the coil also reduces the problem of shadowing of portions of the resistance wire coil.

Open coil electric resistance heater with offset coil support and method of use

An open coil resistance heater assembly is made for universal mounting between left and right hand installations in an appliance or other equipment. The heater assembly has its coils arranged symmetrically about a bisecting plane of the heater assembly and/or a center line of its terminal assembly aligned with the bisecting plane. The symmetrical coil arrangement and/or bisected terminal assembly allow the heater to be used in right hand or left hand installations.

Method of using open coil resistance heater in appliances with right and left hand installation capability

An open coil resistance heater uses one or more standoffs to engage and support the generally straight or uncoiled run of bare or insulated wire that is part of the resistance wire of the heater. The standoff has slots, which are sized to engage the bare or insulated wires for support purposes, and is removably mountable to the heater frame for supporting the run of uncoiled wire.

Standoff for use with uncoiled bare wire and insulated runs of an open coil electric resistance heater, method of use, and an open coil resistance heater using the standoff

An open coil resistance heating apparatus uses a pair of twisted wires having a particular gauge and pitch as the resistance heating wire. Using the twisted pair of wires in the selected gauge and pitch results in significant cost reductions; less wire is needed to achieve the same heating capacity.

Open coil electric resistance heater using twisted resistance wires and methods of making

A clip for connecting one or two insulators to a rail (preferably a T-bar member) of an electric heater including at least one bendable metal clinching member, where the clip is securable to the rail by bending the clinching member around the rail. Preferably, the clinching member is one or two T-shaped end members disposed on transverse ends of the clip. Opposite end sections of the ridge of the T-shaped end member constitute clinching flaps which, in use, are clinched around a stem of a T-bar of an electric heater.

Growing community of inventors

Cookeville, TN, United States of America

James Lee Sherrill