Panelboard with insulative circuit breaker supports mounted on the bus bars

Claim 2

A panelboard assembly comprising: a. a boxlike enclosure having an access opening therein, b. a bus bar structure mounted in said boxlike enclosure, said bus bar structure comprising three bus bars mounted in spaced parallel relationship between a pair of insulating supporting members, the center bus bar being mounted so as to be slightly displaced from the plane which passes through the two outside bus bars, each of the bus bars having a series of tapped holes periodically located along its length, said center bus bar having a segmented insulator mounted thereon and extending substantially the length of said bus bar, a fastening means attached to each of the outside bus bars and extending substantially the length of said bus bar, c. a plurality of circuit breakers mounted on said bus bar structure, said circuit breakers being arranged to form two columns consisting of a plurality of circuit breakers mounted in side-by-side relationship in each column, all of said circuit breakers being anchored to the center bus bar segmented insulator assembly, one column of circuit breakers being anchored as well to the fastening means on one of said outside bus bars, the other column of circuit breakers being anchored as well to the fastening means on the other of said outside bus bars, d. a trim member connected to said boxlike enclosure for covering said access opening.

Claim 3

A panelboard comprising insulating bus bar support means, bus bar means supported on said bus bar support means, said bus bar means comprising three elongated bus bars supported in a spaced generally parallel relationship providing a center bus bar and a pair of outside bus bars on opposite sides of said center bus bar, a pair of circuit breakers supported in said panelboard in an end-to-end relationship at first ends of said circuit breakers with said first ends being disposed generally over said center bus bar, an insulating member over said center bus bar between said center bus bar and said first ends of said circuit breakers, a first insulating support structure supported on a first of said outside bus bars, a second insulating support structure supported on the second of said outside bus bars, a first of said circuit breakers at the second end thereof being supported on said first insulating support structure, the second of said circuit breakers at the second end thereof being supported on said second insulating support structure, and conducting means connecting each of said circuit breakers at the first end of each of said circuit breakers to said bus bar means.

Claim 4

A panelboard comprising insulating bus bar support means, bus bar means supported on said bus bar support means, said bus bar means comprising three elongated bus bars supported in a spaced generally parallel relationship providing a center bus bar and a pair of outside bus bars on opposite sides of said center bus bar, a pair of circuit breakers supported in said panelboard in an end-to-end relationship at first ends of said circuit breakers with said first ends being disposed generally over said center bus bar, an insulating member over said center bus bar between said center bus bar and said first ends of said circuit breakers, a first insulating support structure supported on a first of said outside bus bars, a second insulating support structure supported on the second of said outside bus bars, a first of said circuit breakers at the second end thereof being supported on said first insulating support structure, the second of said circuit breakers at the second end thereof being supported on said second insulating support structure, and conducting means connecting each of said circuit breakers at the first end of each of said circuit breakers to said bus bar means.

Claim 5

A panelboard according to claim 2, a first hook part on said first insulating support structure, a second hook part on said second insulating support structure, said first circuit breaker at the second end thereof being supported on said first insulating support structure in interengagement with said first hook part, and said second circuit breaker at the second end thereof being supported on said second insulating support structure in interengagement with said second hook part.

Claim 6

A panelboard comprising insulating bus bar support means, a plurality of elongated bus bars supported on said insulating bus bar support means in a spaced generally parallel relationship, insulating breaker support means supported on a first of said bus bars, a plurality of circuit breakers supported on said panelboard aligned in a side-by-side relationship forming a column of circuit breakers with the load end of each of said circuit breakers being supported on said insulating breaker support means, said insulating breaker support means comprising shelf part means aNd a plurality of spaced hook parts, each of said circuit breakers at the load end thereof resting on said shelf part means and being in interengagement with a different one of said hook parts, and means supporting the line ends of said circuit breakers on said panelboard and electrically connecting the line ends of said circuit breakers to said plurality of bus bars.

Claim 7

A panelboard comprising insulating bus bar support means, a plurality of elongated bus bars supported on said insulating bus bar support means in a spaced generally parallel relationship, insulating breaker support means supported on a first of said bus bars, a plurality of circuit breakers supported on said panelboard aligned in a side-by-side relationship forming a column of circuit breakers with the load end of each of said circuit breakers being supported on said insulating breaker support means, said insulating breaker support means comprising shelf part means aNd a plurality of spaced hook parts, each of said circuit breakers at the load end thereof resting on said shelf part means and being in interengagement with a different one of said hook parts, and means supporting the line ends of said circuit breakers on said panelboard and electrically connecting the line ends of said circuit breakers to said plurality of bus bars.

Claim 8

A panelboard comprising insulating bus bar support means, three elongated bus bars supported on said insulating bus bar support means in a spaced generally parallel relationship providing a center bus bar and a pair of outside bus bars on opposite sides of said center bus bar, three pairs of circuit breakers supported on said panelboard in a side-by-side relationship with the two circuit breakers of each pair being in an end-to-end relationship at the line ends of the two circuit breakers of each pair and with the line ends of said circuit breakers being disposed generally over said center bus bar, an insulating member over said center bus bar between said center bus bar and said line ends of said circuit breakers, a first insulating support structure supported on a first of said outside bus bars, a second insulating support structure supported on the second of said outside bus bars, a first circuit breaker of each of said three pairs being supported at the load end thereof on said first insulating support structure, the second circuit breaker of each of said three pairs being supported at the load end thereof on said second insulating support structure, said six circuit breakers at the line ends thereof being supported over said insulating member, a first conducting means electrically connecting the line ends of a first pair of said pairs of circuit breakers to said first outside bus bar, a second conducting means electrically connecting the line ends of a second pair of said pairs of circuit breakers to said center bus bar, and a third conducting means electrically connecting the line ends of the third pair of said pairs of circuit breakers to said second outside bus bar.

Claim 9

A panelboard comprising insulating bus bar support means, three elongated bus bars supported on said insulating bus bar support means in a spaced generally parallel relationship providing a center bus bar and a pair of outside bus bars on opposite sides of said center bus bar, three pairs of circuit breakers supported on said panelboard in a side-by-side relationship with the two circuit breakers of each pair being in an end-to-end relationship at the line ends of the two circuit breakers of each pair and with the line ends of said circuit breakers being disposed generally over said center bus bar, an insulating member over said center bus bar between said center bus bar and said line ends of said circuit breakers, a first insulating support structure supported on a first of said outside bus bars, a second insulating support structure supported on the second of said outside bus bars, a first circuit breaker of each of said three pairs being supported at the load end thereof on said first insulating support structure, the second circuit breaker of each of said three pairs being supported at the load end thereof on said second insulating support structure, said six circuit breakers at the line ends thereof being supported over said insulating member, a first conducting means electrically connecting the line ends of a first pair of said pairs of circuit breakers to said first outside bus bar, a second conducting means electrically connecting the line ends of a second pair of said pairs of circuit breakers to said center bus bar, and a third conducting means electrically connecting the line ends of the third pair of said pairs of circuit breakers to said second outside bus bar.

Claim 10

A panelboard according to claim 5, said insulating member over said center bus bar comprising insulating means insulating adjacent conducting means of said first second and third conducting means from each other.

Claim 11

A panelboard according to claim 5, three hook parts on said first insulating support structure, three hook parts on said second insulating support structure, and each of the circuit breakers of said three pairs of circuit breakers at the load end thereof being in interengagement with a different one of said hook parts.

Claim 12

A panelboard comprising insulating bus bar support means, a plurality of elongated bus bars supported on said insulating bus bar support means in a spaced generally parallel relationship, a first insulating breaker support means supported on a first of said bus bars, a second insulating breaker support means supported on a second of said bus bars, a first plurality of circuit breakers supported on said panelboard in a side-by-side relationship forming a first column of circuit breakers with the load end of each of said circuit breakers in said first column being supported on said first insulating breaker support means, a second plurality of circuit breakers supported on said panelboard in a side-by-side relationship forming a second column of circuit breakers generally parallel with said first column of circuit breakers and with the load end of each of said circuit breakers of said second column being supported on said second insulating breaker support means, and means supporting the line ends of said circuit breakers of said first and second columns on said panelboard and electrically connecting the line ends of said circuit breakers of said first and second columns to said plurality of bus bars.

Claim 13

A panelboard comprising insulating bus bar support means, a plurality of elongated bus bars supported on said insulating bus bar support means in a spaced generally parallel relationship, a first insulating breaker support means supported on a first of said bus bars, a second insulating breaker support means supported on a second of said bus bars, a first plurality of circuit breakers supported on said panelboard in a side-by-side relationship forming a first column of circuit breakers with the load end of each of said circuit breakers in said first column being supported on said first insulating breaker support means, a second plurality of circuit breakers supported on said panelboard in a side-by-side relationship forming a second column of circuit breakers generally parallel with said first column of circuit breakers and with the load end of each of said circuit breakers of said second column being supported on said second insulating breaker support means, and means supporting the line ends of said circuit breakers of said first and second columns on said panelboard and electrically connecting the line ends of said circuit breakers of said first and second columns to said plurality of bus bars.

Claim 14

A panelboard according to claim 8, each of said first and second insulating breaker support means comprising shelf part means and a plurality of spaced hook parts, each circuit breaker in each of said first and second columns resting at the load end thereof on the associated shelf part means and being in interengagement with a different one of the plurality of hook parts of the associated insulating breaker support means.

Claim 15

A panelboard according to claim 8, said plurality of elongated bus bars comprising a third bus bar supported on said insulating support means generally between said first and second bus bars and being generally parallel with said first and second bus bars, insulating barrier means covering said third bus bar, said first and second columns of circuit breakers being in an adjacent end-to-end relationship with the line ends thereof being adjacent each other in proximity to said third bus bar and said insulating barrier means and with the load ends thereof being supported on said first and second insulating breaker support means, conducting means at said line ends of said circuit breakers connecting said circuit breakers to selected ones of said plurality of bus bars, said circuit breakers in said first and second columns being in pairs with each pair comprising a breaker in the first column and a breaker in the second column with each pair being electrically connected to the same bus bar, and said insulating barrier means comprising an insulating barrier between each pair of circuit breakers and any adjacent pair of circuit breakers.

Claim 16

A panelboard according to claim 10, each of said first and second insulating breaker support means comprising shelf part means and a plurality of spaced hook parts, and each of said circuit breakers at the load end thereof resting on the associated shelf part means and being in interengagement with a different one of the hook parts of the associated insulating breaker support means.

Claim 17

A panelboard according to claim 11, a separate conducting means for each of said pairs of circuit breakers, a first of said conducting means connecting the first pair of said pairs of circuit breakers to said first bus bar, a second of said conducting means connecting a second pair of said pairs of circuit breakers to said second bus bar, and a third of said conducting means connecting a third pair of said pairs of circuit breakers to said third bus bar.