Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
18 words
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
Claim 2
Dependent Claim
188 words
A current mode bus coupler for electromagnetically coupling a terminal unit with a current bus formed of two insulated wires twisted about one another to form a plurality of loops, said current mode bus coupler comprising: (a) a dielectric substrate having an aperture; (b) an electrically conductive planar coil formed on said dielectric substrate so as to surround said first aperture and spiral outwardly therefrom; (c) an electrically conductive planar shield located on one side of said dielectric substrate, said planar shield including an aperture aligned with the aperture of said dielectric substrate, said planar shield including a slot that extends outwardly from said aperture in said planar shield; and (d) a ferromagnetic core formed of two separable elements that when joined together form at least one closed magnetic path, one of said separable elements including a leg mounted in said aperture in said dielectric substrate and said planar shield, said separable elements separable to allow a loop of a current bus formed of two insulated wires twisted into loops to be positioned about said leg on the opposite side of said planar shield from said planar coil.
Claim 3
Dependent Claim
70 words
The current mode bus coupler claimed in Claim 1, wherein: said dielectric substrate and said planar shield each have a second aperture; one of said ferromagnetic core elements includes a second leg magnetically coupled to said first leg when said separable core elements are joined together; said second leg is mounted in said second aperture; and said planar shield includes a second slot that extends outwardly from said second aperture.
Claim 4
Dependent Claim
16 words
The current mode bus coupler claimed in Claim 2, wherein said slots merge into one another.
Claim 5
Dependent Claim
72 words
The current mode bus coupler claimed in Claim 2, wherein: said dielectric substrate and said planar shield each have a third aperture; one of said ferromagnetic core elements includes a third leg magnetically coupled to said first and second legs when said separable core elements are joined together; said third leg is mounted in said third aperture; and said planar shield includes a third slot that extends outwardly from said third aperture.
Claim 6
Dependent Claim
20 words
The current mode bus coupler claimed in Claim 4, wherein said slots extend between said first, second and third apertures.
Claim 7
Dependent Claim
28 words
The current mode bus coupler claimed in Claim 4, wherein said ferromagnetic core comprises two E-shaped elements whose legs, when joined, form said first, second, and third legs.
Claim 8
Dependent Claim
92 words
The current mode bus coupler claimed in Claim 6, further comprising a second electrically conductive planar shield located on the other side of said dielectric substrate from said first planar shield, said second planar shield including first, second, and third apertures aligned with said first, second and third apertures in said dielectric substrate and said first planar shield for respectively receiving said first, second, and third legs of said ferromagnetic core, said second planar shield including slots that extend outwardly from said first, second and third apertures in said second planar shield.
Claim 9
Dependent Claim
28 words
The current mode bus coupler claimed in Claim 7, wherein said slots in said first and second planar shields extend between their respective first, second and third apertures.
Claim 10
Dependent Claim
57 words
The current mode bus coupler claimed in Claim 7, further comprising a second electrically conductive planar coil, said second planar coil spaced from said first planar coil and positioned between said first and second planar shields, said second planar coil positioned so as to surround one of said legs of said ferromagnetic core and spiral outwardly therefrom.
Claim 11
Dependent Claim
24 words
The current mode bus coupler claimed in Claim 9, wherein said first and second planar coils surround the same leg of said ferromagnetic core.
Claim 12
Dependent Claim
25 words
The current mode bus coupler claimed in Claim 10, wherein the spiral direction of said first and second planar coils have the opposite clockwise/counterclockwise sense.
Claim 13
Dependent Claim
49 words
The current mode bus coupler claimed in Claim 9, including: a second dielectric substrate, said first planar shield being formed on said second dielectric substrate; and a third dielectric substrate, said second planar shield and said second planar coil being formed on opposite sides of said third dielectric substrate.
Claim 14
Dependent Claim
67 words
The current mode bus coupler claimed in Claim 12, wherein: said first dielectric substrate is adhesively attached with a dielectric adhesive to the side of said third dielectric substrate on which said second planar coil is formed; and said second dielectric substrate is adhesively attached with a dielectric adhesive to the side of said first dielectric substrate opposite to the side attached to said third dielectric substrate.
Claim 15
Dependent Claim
40 words
The current mode bus coupler claimed in Claim 2, wherein said ferromagnetic core includes a U-shaped element whose legs form said first and second legs and an I-shaped element positionable across the ends of the legs of said U-shaped element.
Claim 16
Dependent Claim
88 words
The current mode bus coupler claimed in Claim 14, further comprising a second electrically conductive planar shield located on the other side of said dielectric substrate from said first planar shield, said second planar shield including first and second apertures aligned with said first and second apertures in said dielectric substrate and said first planar shield for respectively receiving said first and second legs of said ferromagnetic core, said second planar shield including slots that extend outwardly from said first and second apertures in said second planar shield.
Claim 17
Dependent Claim
27 words
The current mode bus coupler claimed in Claim 15, wherein said slots in said first and second planar shields extend between their respective first and second apertures.
Claim 18
Dependent Claim
36 words
The current mode bus coupler claimed in Claims 1, 3, 5, 8, 11, 13 or 16, wherein the side of said first planar shield opposite from said first planar coil is covered with a dielectric material.