HOWARD A SAUNDERS JR
Vehicle Board in Pittsburgh, PA

3974302, Aug 10, 1976

Nov 26, 1974

5/527458

Edward J. Croop - Pittsburgh PA
Howard E. Saunders - Pittsburgh PA
Dean C. Westervelt - Acme PA

Westinghouse Electric Corporation - Pittsburgh PA

B05D 106

427 21

A porous, electrical insulating adhesive substrate is made by (A) electrostatically coating a flexible sheet material with heat reactive adhesive resin particles, having an average particle size of between about 1 micron to 2,000 microns, the adhesive particles are applied in a predetermined pattern on the sheet covering from about 10 percent to 90 percent of the sheet material area, the area between the resin pattern not being patterned and then (B) heating the patterened coated sheet material between about 65. degree. C to 250. degree. C, forming a discontinuous, 0. 25 mil to 25 mil (0. 006 mm to 0. 635 mm) thick, dry coating pattern of heat reactive adhesive particles bonded to the sheet material, said heat reactive adhesive coating covering from about 10 percent to 90 percent of the sheet material area; the patterned coated sheet may then be inserted as an oil permeable layer insulation between high voltage windings and low voltage windings and between layers of high and low voltage windings in a wound coil assembly, after which the assembly can be heated at a temperature and for a time effective to securely bond the winding layers together, and thus provide a porous, oil permeable, bonded transformer coil assembly.

4095557, Jun 20, 1978

May 4, 1976

5/683118

Edward J. Croop - Pittsburgh PA
Howard E. Saunders - Pittsburgh PA
Dean C. Westervelt - Acme PA

Westinghouse Electric Corp. - Pittsburgh PA

B05B 502, B05B 1504, B05D 106

118301

A porous, electrical insulating adhesive substrate is made by (A) electrostatically coating a flexible sheet material with heat reactive adhesive resin particles, having an average particle size of between about 1 micron to 2,000 microns, the adhesive particles are applied in a predetermined pattern on the sheet covering from about 10 percent to 90 percent of the sheet material area, the area between the resin pattern not being coated; and then (B) heating the patterned coated sheet material between about 65. degree. C to 250. degree. C, forming a discontinuous, 0. 25 mil to 25 mil (0. 006 mm to 0. 635 mm) thick, dry coating pattern of heat reactive adhesive particles bonded to the sheet material, said heat reactive adhesive coating covering from about 10 percent to 90 percent of the sheet material area; the patterned coated sheet may then be inserted as an oil permeable layer insulation between high voltage windings and low voltage windings and between layers of high and low voltage windings in a wound coil assembly, after which the assembly can be heated at a temperature and for a time effective to securely bond the winding layers together, and thus provide a porous, oil permeable, bonded transformer coil assembly.

4040993, Aug 9, 1977

Feb 25, 1976

5/661074

Irving N. Elbling - Pittsburgh PA
Howard E. Saunders - Penn Hills PA

Westinghouse Electric Corporation - Pittsburgh PA

C08L 6300, C08L 9100

260 18EP

A coating powder is made by hot melt mixing a composition of three diglycidyl ethers of bisphenol A, a pre-prepared epoxy ester, and a curing agent containing trimellitic anhydride. The composition is cooled to form a solid which is ground into a powder. Wire or other articles are coated with the coating powder in an electrostatic fluidized bed or with an electrostatic gun and the powder is cured.

4088809, May 9, 1978

Mar 17, 1977

5/778526

Irving N. Elbling - Pittsburgh PA
Howard E. Saunders - Penn Hills PA

Westinghouse Electric Corp. - Pittsburgh PA

B05D 104, B05D 124, B05D 106

428379

A coating powder is made by hot melt mixing a composition of three diglycidyl ethers of bisphenol A, a pre-prepared epoxy ester, and a curing agent containing trimellitic anhydride. The composition is cooled to form a solid which is ground into a powder. Wire or other articles are coated with the coating powder in an electrostatic fluidized bed or with an electrostatic gun and the powder is cured.

4241101, Dec 23, 1980

May 17, 1979

6/039919

Howard E. Saunders - Pittsburgh PA
James D. B. Smith - Wilkens Township, Allegheny County PA

Westinghouse Electric Corp. - Pittsburgh PA

C08G 5942, C08G 5968

427 32

A coating powder is disclosed which is prepared from a solventless non-aqueous composition of a solid epoxy resin having an epoxy equivalent weight of about 400 to about 8000, a Durran's softening point of at least 70. degree. , a solid polyanhydride curing agent at least about 50 mole % of which is trimellitic anhydride, and a cross-linking agent having the general formula R. sub. 3 SnX where each R is selected from alkyl, aryl, aralkyl, and alkaryl up to C. sub. 20 and X is selected from acetate, propionate, butyrate, halogen, and hydroxyl. The composition is dry-blended and then melt-mixed at 50. degree. to 150. degree. C. To prepare the coating powder, it is then cooled, crushed, and ground to a particle size of less than 100 microns. The coating powder is electrostatically applied to a conductor and is cured above the melting point of the resin.

4046592, Sep 6, 1977

Jan 12, 1976

5/648431

Dean C. Westervelt - Acme PA
Luciano C. Scala - Murrysville PA
Howard E. Saunders - Pittsburgh PA
David F. Ciliberti - Murrysville PA

Westinghouse Electric Corporation - Pittsburgh PA

B08B 310, B08B 312, C25F 100

134 1

Wire is cleaned by passing it through an electrolytic cleaner then through an ultrasonic rinse. The electrolytic cleaner comprises a graphite tube through which the wire passes, an alkaline aqueous solution between the wire and the graphite tube, and an electric current, at least half D. C. , between the wire and the graphite tube.