Walter G Barie

US Patent:

7345449, Mar 18, 2008

Filed:

Aug 29, 2005

Appl. No.:

11/214220

Inventors:

Walter G. Barie - Allison Park PA, US
Ronald E. Vines - Gowanstown, CA
Harold D. Hagerty - Pittsburgh PA, US

Assignee:

Benshaw, Inc. - Glenshaw PA

International Classification:

H02P 1/28
H02P 6/08
G01P 3/00

US Classification:

318779, 318778, 318727, 318809, 323901, 323238, 323321

Abstract:

A polyphase AC induction motor is connected to a power supply through a soft starter having three sets of inverse parallel connected silicon controlled rectifiers with each set corresponding to one particular phase. Low speed starting and operation of the motor can be accomplished through triggering circuits controlling the phases of the triggering pulses in relation to the phases of the supply. The low motor speeds are developed by a gating sequence that generates a low frequency waveform that is less than the main supply frequency to the motor. This low frequency waveform is current and voltage controlled by the gating sequence to permit the AC motor to smoothly operate at speeds less than 100% of rated while developing net positive torque at the low controlled operating frequency.

US Patent:

20130234681, Sep 12, 2013

Filed:

Mar 8, 2013

Appl. No.:

13/790442

Inventors:

MARC FRANCIS AIELLO - Oakmont PA, US
Kenneth Stephen Berton - Greensburg PA, US
Walter Gilbert Barie - Allison Park PA, US

Assignee:

Curtiss-Wright Electro-Mechanical Corporation - Cheswick PA

International Classification:

G05F 3/08

US Classification:

323208

Abstract:

A modular multilevel converter system. The system includes a plurality of series connected two-terminal M2LC cells arranged into at least two output phase modules. A first one of the output phase modules has an inductance and an effective capacitance associated therewith. The first one of the output phase modules is configured so that a natural resonant frequency of the inductance with the effective capacitance of the first one of the output phase modules is greater than at least one of the following: an operating frequency of the first one of the output phase modules; a switching frequency of the first one of the output phase modules; and a switching frequency of any of the M2LC cells of the first one of the output phase modules.

US Patent:

43821375, May 3, 1983

Filed:

Feb 9, 1981

Appl. No.:

6/232996

Inventors:

Johann G. Schulz - Pittsburgh PA
Walter P. Barie - Glenshaw PA
James T. Eurich - Marwood PA

Assignee:

Gulf Research & Development Company - Pittsburgh PA

International Classification:

C08G 6312

US Classification:

527500

Abstract:

Novel resin products produced by reacting unique polycyclic, aromatic, polycarboxylic acid products with low molecular weight polyols display satisfactory toughness properties and good Barcol hardness values. The process for preparing these novel resin products first involves preparing an intimate, finely divided mixture comprising the acid product derived from the nitric acid oxidation of naturally occurring solid carbonaceous material, a roughly equivalent amount of a liquid polyol, and a suitable acid catalyst. The mixture is then subjected to a precure step which involves heating at temperatures between 80. degree. and 150. degree. C. for from about fifteen minutes to about four hours. The precured mixture may thereafter be subjected to suitable molding conditions at a temperature below about 220. degree. C.

US Patent:

41580907, Jun 12, 1979

Filed:

Feb 21, 1978

Appl. No.:

5/879446

Inventors:

Edward T. Sabourin - Allison Park PA
Walter P. Barie - Glenshaw PA

Assignee:

Gulf Research & Development Company - Pittsburgh PA

International Classification:

C08G 5916
C08G 5918
C08G 5968

US Classification:

528 92

Abstract:

A new composition capable of being cured to a solid resin highly resistant to boiling acetone which comprises: (a) a 1,2-epoxy resin containing on the average more than one 1,2-epoxy group per molecule; (b) a residue remaining from the process wherein cumene (C) is reacted with maleic anhydride (MA) in the presence of (that is, in contact with) zinc chloride to obtain a reaction product containing dimethylbenzyl succinic anhydride (DMBSA), 5-phenyl-5-methylhexane-1,2,3,4-tetracarboxylic acid dianhydride (PMTD) and addition products of C and MA containing more than two anhydride groups per molecule (AP) and wherein a sufficient amount of said DMBSA is removed from said reaction product to give a residue containing a maximum of 25 weight percent DMBSA; and (c) an accelerator.

US Patent:

41478568, Apr 3, 1979

Filed:

Feb 21, 1978

Appl. No.:

5/879447

Inventors:

Edward T. Sabourin - Allison Park PA
Walter P. Barie - Glenshaw PA

Assignee:

Gulf Research & Development Company - Pittsburgh PA

International Classification:

C08G 5916
C08G 5918
C08G 5968

US Classification:

528 92

Abstract:

A new composition capable of being cured to a solid resin highly resistant to boiling acetone which comprises: (a) a 1,2-epoxy resin containing on the average more than one 1,2-epoxy group per molecule; (b) a residue remaining from the process wherein cumene (C) is reacted with maleic anhydride (MA) to obtain a reaction product containing dimethylbenzyl succinic anhydride (DMBSA), 5-phenyl-5-methylhexane-1,2,3,4-tetracarboxylic acid dianhydride (PMTD) and addition products of C and MA containing more than two anhydride groups per molecule (AP) and wherein a sufficient amount of said DMBSA is removed from said reaction product to give a residue containing a maximum of 25 weight percent DMBSA; and (c) an accelerator.

US Patent:

43202233, Mar 16, 1982

Filed:

Nov 24, 1980

Appl. No.:

6/209595

Inventors:

Johann G. Schulz - Pittsburgh PA
Walter P. Barie - Glenshaw PA
James T. Eurich - Marwood PA

Assignee:

Gulf Research & Development Corp. - Pittsburgh PA

International Classification:

C08G 5942

US Classification:

527501

Abstract:

Novel, 1,2-Epoxy Resin products using unique polycyclic, aromatic, polycarboxylic acid products as crosslinking agents display satisfactory electrical properties and good Barcol hardness values. The process for preparing these novel resin products involves admixing: a 1,2-epoxy resin containing on the average more than one 1,2-epoxy groups per molecule and the acid product derived from the nitric acid oxidation of naturally occurring solid carbonaceous material along with a suitable accelerator. The mixture is then subjected to a precure step which involves heating at temperatures between 50. degree. and 150. degree. C. for from about five minutes to about six hours. The mixture is thereafter subjected to suitable molding conditions.

US Patent:

45351155, Aug 13, 1985

Filed:

Aug 20, 1984

Appl. No.:

6/642519

Inventors:

Kiran R. Bakshi - Murrysville PA
Walter P. Barie - Glenshaw PA
Edward T. Sabourin - Allison Park PA

Assignee:

Gulf Oil Corporation - Pittsburgh PA

International Classification:

C08L 7908

US Classification:

524376

Abstract:

A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of diglyme and a sufficient amount of a co-solvent to maintain the polyimide acid in solution, said co-solvent having the formula: ROH where R is H, an aliphatic branched or straight-chain hydrocarbon having from 1 to 5 carbon atoms or a methoxy substituted aliphatic branched or straight-chain hydrocarbon having from 1 to 5 carbon atoms.

US Patent:

45241716, Jun 18, 1985

Filed:

Aug 20, 1984

Appl. No.:

6/642518

Inventors:

Kiran R. Bakshi - Murrysville PA
Walter P. Barie - Glenshaw PA
Edward T. Sabourin - Allison Park PA

Assignee:

Gulf Oil Corporation - Pittsburgh PA

International Classification:

C08L 7908

US Classification:

524376

Abstract:

A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of propylene glycol methyl ether.