초록 ▼

A brush block assembly, for providing stationary mounting of electrically conductive brushes in contact registration with associated slip rings of a rotating interface, comprises a main housing adapted for mounting in proximity to the rotating interface and having a recess portion for releasably eng

A brush block assembly, for providing stationary mounting of electrically conductive brushes in contact registration with associated slip rings of a rotating interface, comprises a main housing adapted for mounting in proximity to the rotating interface and having a recess portion for releasably engaging a brush holder, and a brush holder formed from a thermoplastic molding compound comprising an organic polytetrafluoroethylene (PTFE) filler distributed within a polyetheretherketone (PEEK) thermoplastic resin, for securing the brushes within the recess in contact registration with their associated slip rings.

대표청구항 ▼

[ We claim:] [1.] Apparatus for deicing the surface of propeller blades disposed in a spinner assembly mounted to and rotatable with the shaft of an engine installed on an aircraft, the aircraft having an electrical power source, comprising:rotational interface means, adapted to be fixedly mounted t

[ We claim:] [1.] Apparatus for deicing the surface of propeller blades disposed in a spinner assembly mounted to and rotatable with the shaft of an engine installed on an aircraft, the aircraft having an electrical power source, comprising:rotational interface means, adapted to be fixedly mounted to and rotatable with the spinner assembly, and including one or more substantially annular slip rings disposed on an interface surface thereof;heater elements, at least one disposed on each propeller blade and each electrically connected to an associated one of said slip rings; anda brush block assembly, adapted for installation in proximity to said rotational interface means and having one or more brush pockets for securing a like number of electrically conductive brushes in contact registration with the rotating surface of said rings; andbrush block assembly being responsive to the aircraft power source for providing an electrical current signal therefrom to each brush;as characterized by:said brush block assembly comprising a main housing a removable brush block holder, said main housing having an interface recess portion adapted to releasably engage said brush holder, said brush being formed from a thermoplastic molding compound comprising an organic polytetrafluoroethylene (PTFE) filler distributed within a polyetheretherketone (PEEK thermoplastic resin and adapted to secure, when engaged in the recess portion, said electrically conductive brushes in contact registration with the surface of said slip rings.