Frank B Desio

US Patent:

40028720, Jan 11, 1977

Filed:

Jun 18, 1975

Appl. No.:

5/588126

Inventors:

Frank B. Desio - Melrose Park IL

Assignee:

Illinois Tool Works Inc. - Chicago IL

International Classification:

H01H 902

US Classification:

200294

Abstract:

An electrical switch housing which may be mounted on the control shaft of a gas valve of a household gas appliance in order to control an ignition circuit which ignites the gas that is controlled by the valve is provided. The electrical switch housing has a central aperture which holds a rotatable operating member that has an aperture in it which receives the control shaft of the valve. The switch housing may have two, three or four mounting posts which extend normal to it and are positioned relative to one another so that they prevent the housing of the switch from rotating when the control shaft is rotated.

US Patent:

39887103, Oct 26, 1976

Filed:

Nov 24, 1975

Appl. No.:

5/634807

Inventors:

Edward Frank Sidor - Lombard IL
Frank B. Desio - Melrose Park IL

Assignee:

Illinois Tool Works Inc. - Chicago IL

International Classification:

H01L 4308

US Classification:

338 32R

Abstract:

A contactless potentiometer which has a linear output characteristic is constructed with a pair of elongated, hollow cylindrical tubes which are made of magnetically saturable material and are aligned so that their axes form an angle less than 180. degree. , with both of said tubes having at least one conductive wire coupled therewith which is interconnected with the wire that is coupled with the other tube, and a moveable magnet which is formed as a segment of a circle with a pair of straight sides that move adjacent to said tubes so that the total volume of said tubes that is magnetically saturated remains substantially constant while the inductance ratio of the tubes varies.

US Patent:

40285154, Jun 7, 1977

Filed:

Sep 15, 1975

Appl. No.:

5/613696

Inventors:

Frank B. Desio - Melrose Park IL
Samuel Lee Webb - Lisle IL

Assignee:

Illinois Tool Works Inc. - Chicago IL

International Classification:

H01H 1332
H01H 106

US Classification:

200276

Abstract:

A dual-in-line switch package having a plurality of momentary contact switching stations and a plurality of indicating lights is disclosed. The switching mechanism of the switches is provided by a close wound coil spring having one end that encloses one contact and another end that is bent by the depression of a pushbutton so that it makes contact with a second contact in order to complete the circuit. The indicating lights may be light-emitting diodes which have lead extensions that are brought out of the package in line with the contacts for the switches. The light-emitting diodes rest on a support guide rail and are held in place in the switch when the cover is snapped on.