Francis W Navish

43351794, Jun 15, 1982

Feb 2, 1981

6/230489

Morris A. Mendelsohn - Wilkins Township, Allegheny County PA
Francis W. Navish - East Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

B32B 700

428273

A resin impregnated spacer, useful for bracing electrical conductors, comprises a porous, flexible, heat resistant material impregnated with an epoxy resin containing Lewis acid curing agent and an effective amount of dibutylphosphite.

44857195, Dec 4, 1984

Apr 8, 1982

6/366457

Morris A. Mendelsohn - Wilkins Township, Allegheny County PA
Francis W. Navish - East Pittsburgh PA
George E. Rudd - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

C08G 1883
F16J 1532

89 1816

A resilient, strong, high modulus polyurethane elastomer structural member is made from (A) a prepolymer prepared from a composition consisting essentially of 4,4'-diphenylmethane diisocyanate, low molecular weight triol, and polyoxytetramethylene glycol, and (B) hydroquinone di-(. beta. -hydroxyethyl) ether, as a chain extender.

43674259, Jan 4, 1983

Jun 1, 1981

6/269133

Morris A. Mendelsohn - Wilkins Township, Allegheny County PA
Francis W. Navish - East Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

H02K 346

310260

A compatible, gellable, dual resin system useful for impregnating porous spacers between stator end windings of turbine generators is made from (A) a liquid diallyl isophthalate component comprising an admixture of liquid diallyl isophthalate monomer and solid diallyl isophthalate prepolymer, where the weight ratio of monomer:prepolymer is between about 1. 5:1 and about 3. 0:1, (B) an amount of chain forming isocyanate terminated polyurethane prepolymer effective to provide a chain network which physically interpenetrates the liquid diallyl isophthalate component, and prevents free flow of liquid diallyl isophthalate component, (C) a chain extender for the isocyanate terminated polyurethane prepolymer, and (D) a catalyst for the diallyl isophthalate component, where the resin system is curable with the application of heat.

53390385, Aug 16, 1994

Jul 6, 1992

7/910854

Robert A. Boenning - Timonium MD
Karl F. Schoch - Penn Hills PA
Daryl V. Stough - North Huntingdon PA
Francis W. Navish - East Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

G01R 3102

324539

An assembly for protecting a conduit having a core and an axial length, which length is susceptible to being pinched by a structure is disclosed. The conduit includes an insulating coating in surrounding relationship about the core, with the assembly including a semiconductive layer in surrounding relationship about the insulating coating, and a switching layer in surrounding relationship about the semiconductive layer. The semiconductive layer being formed from partially vulcanized ethylene propylene rubber including particles of a conductive element in the form of carbon black, silver, nickel, aluminum or the like. The switching layer is non-conductive in its unstressed state and conductive when pinched such that the switching layer completes a current flow path between the semiconductive layer and either a grounded structure or another conductive layer, which condition may then be detected.

47390271, Apr 19, 1988

Dec 17, 1985

6/809707

Morris A. Mendelsohn - Wilkins Township, Allegheny County PA
Francis W. Navish - East Pittsburgh PA
Rajender K. Sadhir - Plum Boro PA

Westinghouse Electric Corp. - Pittsburgh PA

C08G 1810
C08G 1830
C08G 1832
F41F 304

528 60

A resilient polyurethane elastomeric article is made from (A) a prepolymer prepared from a composition consisting essentially of diphenylmethane diisocyanate and polyoxytetramethylene glycol, and (B) a dual component chain extender consisting essentially of a low molecular weight triol and a material selected form one of 1,4-butanediol and resorcinol di-(beta-hydroxy ethyl) ether. The admixture can be used to impregnate or coat porous fabric material which upon cure and be used as relatively soft, flexible seals or shock isolator pads.

51149826, May 19, 1992

Nov 20, 1989

7/438828

Morris A. Mendelsohn - Wilkins Twp., Allegheny County PA
Francis W. Navish - East Pittsburgh PA
Richard Bolton - Saratoga CA

Westinghouse Electric Corp. - Pittsburgh PA

C08J 916
C08G 1832
C08G 1848

521 59

An acoustic foam composition comprising (a) about 1 equivalent of a polybutadiene based polyol (b) about 2. 5 to 7. 5 equivalents of a diisocyante (c) or low molecular weight diol which gives a balanced stoichiometry and (d) about 1. 5 to 6% by weight based on the total weight of the composition of hollow polymeric microspheres. The composition may be prepared by a one-step system or a prepolymer system. The foam compositions of the present invention has excellent acoustic properties.

54223806, Jun 6, 1995

Jun 7, 1994

8/255859

Morris A. Mendelsohn - Wilkins Twp., Allegheny County PA
Richard Bolton - Saratoga CA
Francis W. Navish - East Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

C08G 1800

521107

There is disclosed a sound-absorbing syntactic foam comprising expanded polystyrene microspheres, dispersed randomly in a polyurethane matrix.

46049401, Aug 12, 1986

Feb 28, 1985

6/707111

Morris A. Mendelsohn - Wilkins Twp., Allegheny County PA
Francis W. Navish - East Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

F41F 304
C08G 1832

89 1816

A resilient polyurethane elastomer structural member is made from (A) a prepolymer prepared from a composition consisting essentially of 2. 60 moles to 2. 80 moles of 4,4'-diphenylmethane diisocyanate, and about 0. 23 mole to about 0. 31 mole of a low molecular weight triol, per 1. 0 mole of polyoxytetramethylene glycol, and (B) hydroquinone di-(. beta. -hydroxyethyl) ether, as a chain extender. This polyurethane elastomer can be used to make annular missile shock isolator pads useful for the land based, MX (Peacekeeper) missile.