US4135225A — Pivotal structural enclosure

Claim 1

Independent Claim 192 words

In a system incorporating electrical equipment mounted in cages attached to pivoting gates, (a) an enclosure and multiple gates respectively located in multiple interior spaces in the enclosure, the spaces including first, second and third such spaces in a row, the second space located intermediate the first and third spaces, the gates having opposed primary and secondary cage sides, (b) means mounting said gates to swing bodily relatively within said interior spaces so that at least a first of said gates has an initial position in said first space in which a primary cage side of the first gate faces forwardly, and an alternate position in said second interior space in which the opposite cage side of the first gate faces forwardly, and a second of said gates has an initial position in said first space in which a primary cage side of the second gate is forwardly exposed when said first gate is swung into said alternate position in said second interior space, there also being gates in said third space and which are swingable into said second space, (c) at least one of said opposed sides defined by electric equipment.

Claim 2

Dependent Claim 192 words

In a system incorporating electrical equipment mounted in cages attached to pivoting gates, (a) an enclosure and multiple gates respectively located in multiple interior spaces in the enclosure, the spaces including first, second and third such spaces in a row, the second space located intermediate the first and third spaces, the gates having opposed primary and secondary cage sides, (b) means mounting said gates to swing bodily relatively within said interior spaces so that at least a first of said gates has an initial position in said first space in which a primary cage side of the first gate faces forwardly, and an alternate position in said second interior space in which the opposite cage side of the first gate faces forwardly, and a second of said gates has an initial position in said first space in which a primary cage side of the second gate is forwardly exposed when said first gate is swung into said alternate position in said second interior space, there also being gates in said third space and which are swingable into said second space, (c) at least one of said opposed sides defined by electric equipment.

Claim 3

Dependent Claim 24 words

The system of claim 1 including releasable locking elements carried by the enclosure to retain the gates in both positions in the interior spaces.

Claim 4

Dependent Claim 51 words

The system of claim 1 wherein said second gate also has an alternate position in the second interior space in which the opposite cage side of said second gate faces forwardly and is forwardly exposed, the first gate then being in the second interior space and concealed behind the second gate.

Claim 5

Dependent Claim 33 words

The system of claim 1 wherein a third gate in said second space has an alternate position in which it projects horizontally forward in the swing path between the first and third spaces.

Claim 6

Dependent Claim 41 words

The system of claim 1 wherein said first, second and third spaces are vertically separated, the second space openly exposed to the first and third spaces, and there being at least two gates in each of the first and third spaces.

Claim 7

Dependent Claim 48 words

The system of claim 5 wherein there are three of said gates in said first space, two of the gates in the first space having a common axis of rotation, and the third gate in said first space having another axis of rotation parallel to said common axis.

Claim 8

Dependent Claim 48 words

The system of claim 6 wherein there are three of said gates in said third space, two of the gates in the third space having a common axis of rotation, and the third gate in the third space having another axis of rotation parallel to said common axis.

Claim 9

Dependent Claim 48 words

The system of claim 7 wherein there is a single gate in the second space with an axis of rotation parallel to the axes of rotation of said gates in said first and third spaces, but staggered relative to a vertical plane through said common axes of rotation.

Claim 10

Dependent Claim 16 words

The system of claim 1 including means to internally cool the gates in all positions thereof.

Claim 11

Dependent Claim 37 words

The system of claim 3 wherein a third of said gates is in the first space, the primary side of the third gate being frontwardly exposed when said first and second gates are in the second space.

Claim 12

Dependent Claim 30 words

The system of claim 10 wherein there are at least three of said gates in each of at least two of said spaces, said gates having parallel axes of rotation.

Claim 13

Dependent Claim 44 words

The system of claim 10 wherein said third gate has an alternate position in which it projects horizontally forward in the first space to expose the secondary cage side of the third gate when the first and second gates are in the second space.

Claim 14

Dependent Claim 48 words

The system of claim 1 wherein an additional gate is located in the second space to be concealed behind the first and second gates in their alternate positions in the second space, and to be forwardly exposed when the first and second gates are in the first space.

Claim 15

Dependent Claim 43 words

The system of claim 13 wherein the additional gate has an alternate position in which it projects forwardly in said second space to expose the secondary cage side of the additional gate when the first and second gates are in said first space.

Claim 16

Dependent Claim 37 words

The system of claim 1 wherein each gate includes a cage frame, and said mounting means comprises pivot shaft means, and arm structures connected with said cage frames and supported for swinging movement by said shaft means.

Claim 17

Dependent Claim 69 words

The system of claim 3 wherein each gate includes a cage frame, and said mounting means comprises pivot shaft means, and arm structures connected with said cage frames and supported for swinging movement by said shaft means, said arm structures including first and second arms respectively associated with said first and second gates, said first and second arms rotatable about a common axis defined by said pivot shaft means.

Claim 18

Dependent Claim 27 words

The system of claim 16 wherein said arm structures include a third arm rotatable about an axis spaced rearwardly of a vertical plane through said common axis.

Claim 19

Dependent Claim 168 words

In a system incorporating electrical equipment, mounted in cages attached to pivoting gates, (a) an enclosure and multiple gates respectively located in multiple interior spaces in the enclosure, the gates having opposed primary and secondary cage sides, (b) means mounting said gates to swing bodily relatively within said interior spaces so that at least a first of said gates has an initial position in a selected space in which a primary cage side of the first gate faces forwardly, and an alternate position in another interior space in which the opposite cage side of the first gate faces forwardly, (c) at least one of said opposed sides defined by electric equipment, (d) each gate including a cage frame, and said mounting means comprising pivot shaft means, and arm structures connected with said cage frames and supported for swinging movement by said shaft means, the pivot shaft means, arms and cage frames defining intercommunicating passages to pass fluid or gaseous coolant in heat transfer relation with the electric equipment.

Claim 20

Dependent Claim 168 words

In a system incorporating electrical equipment, mounted in cages attached to pivoting gates, (a) an enclosure and multiple gates respectively located in multiple interior spaces in the enclosure, the gates having opposed primary and secondary cage sides, (b) means mounting said gates to swing bodily relatively within said interior spaces so that at least a first of said gates has an initial position in a selected space in which a primary cage side of the first gate faces forwardly, and an alternate position in another interior space in which the opposite cage side of the first gate faces forwardly, (c) at least one of said opposed sides defined by electric equipment, (d) each gate including a cage frame, and said mounting means comprising pivot shaft means, and arm structures connected with said cage frames and supported for swinging movement by said shaft means, the pivot shaft means, arms and cage frames defining intercommunicating passages to pass fluid or gaseous coolant in heat transfer relation with the electric equipment.

Claim 21

Dependent Claim 43 words

The system of claim 18 wherein the pivot shaft means include coaxial hollow shafts respectively carried by the enclosure, said shafts defining inlet and outlet passages for said coolant, the shaft passages being in communication via said arm passages and cage frame passages.

Claim 22

Dependent Claim 187 words

In a system incorporating electrical equipment mounted in cages attached to pivoting gates, (a) an enclosure and multiple gates respectively located in multiple interior spaces in the enclosure, the gates having opposed primary and secondary cage sides, (b) means mounting said gates to swing bodily relatively within said interior spaces so that at least a first of said gates has an initial position in a selected space in which a primary cage side of the first gate faces forwardly, and an alternate position in another interior space in which the opposite cage side of the first gate faces forwardly, (c) at least one of said opposed sides defined by electric equipment, (d) there being a stop carried by an enclosure wall to project into a space, a part carried by a gate to engage the first stop, and a swingable latch carried by said wall and having a hold position in which the latch blocks movement of said part away from the stop, and a release position in which said part is free to move away from said stop in response to bodily swinging of a gate.

Claim 23

Dependent Claim 187 words

In a system incorporating electrical equipment mounted in cages attached to pivoting gates, (a) an enclosure and multiple gates respectively located in multiple interior spaces in the enclosure, the gates having opposed primary and secondary cage sides, (b) means mounting said gates to swing bodily relatively within said interior spaces so that at least a first of said gates has an initial position in a selected space in which a primary cage side of the first gate faces forwardly, and an alternate position in another interior space in which the opposite cage side of the first gate faces forwardly, (c) at least one of said opposed sides defined by electric equipment, (d) there being a stop carried by an enclosure wall to project into a space, a part carried by a gate to engage the first stop, and a swingable latch carried by said wall and having a hold position in which the latch blocks movement of said part away from the stop, and a release position in which said part is free to move away from said stop in response to bodily swinging of a gate.

Claim 24

Dependent Claim 30 words

The system of claim 20 wherein said part has tongue and groove interfit with at least one of the latch and the stop, in said hold position of the latch.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1982-01-15	1982-07-17	1983-01-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1986-01-15	1986-07-17	1987-01-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1990-01-15	1990-07-17	1991-01-16	$7700.00	Window Closed / Lapsed

Pivotal structural enclosure

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