Electrical cord roll-up apparatus
OwnerJeffrey A Rayinventor
Life of this patent
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Abstract
An electrical cord roll-up apparatus has a stationary assembly and a reel assembly that rotably mounts on the stationary assembly. The stationary assembly has a shaft, an insulator on the shaft, axially spaced rings on the insulator and a power input or output cord that connects to the rings. The reel assembly has a reel tube with side flanges on the ends and brush assemblies mounted on the tube in alignment with the rings. The brush assemblies have copper or brass brushes that are pressed against the rings by compression springs, and connectors for connecting to the wires of the electrical cord. Rotating the reel one direction winds the electrical cord onto the reel and rotating the reel in the opposite direction unwinds the electrical cord.
Claims11
Apparatus for rolling up an electrical cord having a plurality of electrical wires comprising:
- an elongated, hollow shaft,
- a plurality of axially spaced, electrically insulated, conductive rings mounted on said shaft,
- a hollow reel tube rotably mounted on said shaft spaced around said rings, and
- a plurality of axially spaced, electrically insulated brush assemblies mounted on said reel tube and each connected to one of said electrical wires, each said brush assembly being aligned with one said ring, and having a brush and a compression spring that presses said brush against said ring.
Apparatus for rolling up an electrical cord having a plurality of electrical wires comprising:
- an elongated, hollow shaft including a cylindrical section, an externally threaded section, connected to an end of said cylindrical section, and a pair of jam nuts that thread onto said threaded section for stationary mounting of said shaft, said cylindrical section having a plurality of axially spaced shaft wire apertures,
- a cylindrical insulator mounted over said cylindrical section and having a plurality of axially spaced insulator wire apertures aligned with said shaft wire apertures,
- a plurality of axially spaced, cylindrical, conductive rings mounted on said insulator adjacent to said insulator wire apertures,
- a pigtail cord that extends into said shaft and has a plurality of pigtail wires that each pass through a said shaft wire aperture and a said insulator wire aperture and connect to a said ring,
- a non-conductive, hollow, cylindrical reel tube rotably mounted on said cylindrical section of said shaft and spaced over said rings, and
- a plurality of axially spaced brush assemblies mounted on said reel tube, each aligned with one said ring, each said brush assembly including an inwardly opening brush holder, a compression spring sized to fit into said brush holder, a brass brush sized to slidably fit into said brush holder and to be biased by said spring against said ring, and a brush wire connected to said brush, each said brush holder having a hollow cylindrical, conductive, externally threaded brush tube, an internally threaded, a conductive tube cap that threads onto and closes an outer end of said brush tube and connects to said brush wire, first and second hex nuts that thread onto said brush tube inside and outside of said reel tube, respectively, to mount said brush tube on said reel tube, a ring type crimp connector that fits onto said brush tube against said second hex nut, and a third hex nut that threads onto said brush tube and secures said connector against said second hex nut, said connector being crimpable onto a said electrical wire.
Dependencies are inferred from the claim text.