Method of insulating electrical components, such as small electric motors

Claim 1

A METHOD OF MANUFACTURING A DYNAMOELECTRIC MACHINE INCLUDING A STATOR CORE HAVING WINDINGS FORMED OF A NUMBER OF TURNS OF WIRE, A ROTOR AND SHAFT ASSEMBLY, AND ROTOR SUPPORTING MEANS, COMPRISING THE STEPS: PLACING THE STATOR CORE IN A BED OF SUBSTANTIALLY UNAERATED POWDERED INSULATING MATERIAL WITH THE OUTER SURFACE OF WINDINGS BEING BELOW THE MELTING TEMPERATURE OF THE MATERIAL AND SURROUNDED BY THE POWDERED MATERIAL; HEATING THE OUTERMOST WIRES TO A PREDETERMINED TEMPERATURE ABOVE THE MELTING POINT OF THE MATERIAL BUT BELOW THE DELETERIOUS TEMPERATURE OF THE WIRES TO FORM AT LEAST A PARTIALLY COALESCED COATING ON THE OUTER SURFACE OF THE WINDINGS: DISCONTINUING THE HEATING OF THE WIRES AND REMOVING THE STATOR CORE FROM THE UNAERATED BED; PARTIALLY HARDENING THE COALESCED COATING; ASSEMBLING THE ROTOR AND SHAFT ASEMBLY AND THE STATOR CORE IN A PREDETERMINED RELATIONSHIP WITH THE ROTOR SUPPORTING MEANS POSITIONED ADJACENT THE STATOR CORE AND WITH AN UNHARDENED ADHESIVE BONDING MATERIAL IN CONTACT WITH SAID STATOR CORE AND ROTOR SUPPORTING MEANS; AND HARDENING THE COALESCED COATING AND ADHESIVE BONDING MATERIAL TO PROVIDE A HARDENED CONTINUOUS COATING ENCASING THE WINDINGS AND TO SECURE TOGETHER THE ROTOR SUPPORING MEANS WITH THE STATOR CRE.