RICHARD S DAWSON
Cosmetology in Pittsburgh, PA

5049852, Sep 17, 1991

Jan 16, 1990

7/465323

Robert Cummins - Pittsburgh PA
Victor V. Kirilloff - Lincoln NE
William A. Benson - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 300

338280

A heat dissipating resistor grid has a frame including side members carrying blocks or panels of insulating material having cavities in their inner surfaces. The resistor element is a zigzag strip formed from individual flat lengths of resistance material, each length having offset ends in opposite directions, adjoining offset ends forming a sandwich with a conductive support strip which extends beyond the offset end and terminates in projections which mate with the cavities in the insulating material. The support strip may extend into the space between the adjoining strips of resistance material forming a heat sink therein. The projecting ends of the support strip may be flat lengths, may be cut into tabs, may be formed into hollow cylinders in one piece with the support strip, may be solid cylindrical studs affixed to the support strip, or solid rod bent into U-shape with the base inside the offset ends. The insulating blocks may fit into cutouts in the frame and locked there by lateral movement.

5159310, Oct 27, 1992

Jun 5, 1991

7/710337

Robert Cummins - Pittsburgh PA
Victor V. Kirilloff - Lincoln NE
William A. Benson - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 101, H01C 300

338280

A heat dissipating resistor grid has a rectangular or annular frame including side members carrying blocks or panels of insulating material having cavities in their inner surfaces. The resistor element is a zigzag strip formed from individual flat lengths of resistance material, each length having offset ends in opposite directions, adjoining offset ends forming a sandwich with a conductive support strip which extends beyond the offset end and terminates in projections which mate with the cavities in the insulating material. The support strip may extend into the space between the adjoining strips of resistance material forming a heat sink therein. The projecting ends of the support strip may be flat lengths, may be cut into tabs, may be formed into hollow cylinders in one piece with the support strip, may be solid cylindrical studs affixed to the support strip, or solid rod bent into U-shape with the base inside the offset ends. The insulating blocks may fit into cutouts in the frame and lock there by lateral movement.

5165052, Nov 17, 1992

Apr 25, 1991

7/691382

Victor V. Kirilloff - Lincoln NE
Robert Cummins - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA
William A. Benson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 300

338280

A resistor grid for dynamic braking of diesel electric locomotives has a rigid frame comprising outer metal side pieces and metal dividers within the frame between which are positioned columns of fan-folded resistor ribbon. The dividers carry support plates having transverse aligned tabs along both sides fixed normal to the support plate, each tab having a notch in its inside edge, supported plates which slide in those slots longitudinally, the supported plates and the folds of the resistor ribbon carrying studs and bushings which interfit by movement normal to those plates.

5245310, Sep 14, 1993

Apr 12, 1991

7/684219

Victor V. Kirilloff - Lincoln NE
Robert Cummins - Pittsburgh PA
Richard Dawson - Pittsburgh PA
William Benson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 1014, H01C 300, H01C 722

338319

An improved frame supported resistor grid used for dynamic braking of electric motors is provided. The resistor grid has a metal frame and fan-folded strips of resistance material arranged in columns within the frame. The strips of resistance material are supported by studs affixed to the folds of the strips and the studs are, in turn, supported in ceramic bushing insulators. An intermediate member is affixed to the frame and receives the individual ceramic bushing insulators.

4651124, Mar 17, 1987

Sep 10, 1984

6/649075

Victor V. Kirilloff - Murrysville PA
William A. Benson - Pittsburgh PA
Robert Cummins - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 300

338280

A rigid frame supported resistor for dynamic braking of electric and diesel-electric locomotives has certain of the frame elements cushioned or insulated from each other and the resistance ribbon insulated and cushioned from the frame. Organic insulating material in molded or sheet form, preferably a copolymer, such as a polyester resin, protected by a metal heat shield, may be used for structural frame members, or for cushioning and insulating metal structural frame members. The organic insulating resistant is supplemented by ceramic insulating material in locations subject to high heat.

4837549, Jun 6, 1989

Feb 22, 1988

7/158858

Victor V. Kirilloff - Lincoln NE
William A. Benson - Pittsburgh PA
Robert Cummins - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 300

338279

In the assembly two or more strips of resistance material are positioned edge-to-edge and fan-folded between the side members of a frame. The strips are supported at their loops by insulated fixtures and each has a terminal at each end. The strips are embossed or indented between loops so as to form longitudinally extending offsets spaced from each other across the strip. The depth of those offsets is controlled so that the clear space between the adjoining flights is just sufficient to admit a flat metal strip inserted between them crosswise with a portion projecting to form a tap. That tap can be positioned anywhere between parallel flights of the resistor ribbon after the assembly of the unit. A channel-shaped clip fits over the projecting tap and the edges of the adjoining flights of resistor ribbon and is welded to the tap and the flights.

4847585, Jul 11, 1989

May 20, 1988

7/196250

Victor V. Kirilloff - Lincoln NE
William A. Benson - Pittsburgh PA
Robert Cummins - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 108

338 58

A resistor grid for diesel electric locomotives and the like has a rigid frame comprising outer metal side pieces and one or more pairs of inner metal side pieces spaced from each other, and columns of resistor ribbon fan-folded between each outer and outermost inner side piece, and between certain inner side pieces. Supporting means interengaging each fold of the ribbons are insulated from and carried on each side by a metal strip which rides on its adjoining side piece so as to accommodate expansion of the resistor ribbon. The ribbon is indented between folds to stiffen it and increase its span and may by provided with a support rod centered between its side pieces. The resistor grid is preferably positioned in forced air cooled resistor banks face-to-face with conventional narrow span grids, and improves the cooling of such conventional banks.

5281944, Jan 25, 1994

Dec 5, 1991

8/802633

Victor V. Kirilloff - Lincoln NE
Robert Cummins - Pittsburgh PA
Richard S. Dawson - Pittsburgh PA
William A. Benson - Pittsburgh PA

Mosebach Manufacturing Company - Pittsburgh PA

H01C 300

338280

A resistor grid for dynamic braking of diesel electric locomotives has a rigid frame that includes outer metal side pieces and metal dividers within the frame between which are positioned columns of fan-folded resistor ribbon. The dividers carry support plates having transverse aligned tabs along both sides fixed normal to the support plate, each tab having a notch in its inside edge, and supported plates for the resistor ribbon which slide in those slots longitudinally. The supported plates and the folds of the resistor ribbon carry studs and bushings which interfit by movement normal to those plates.