US3858092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switchboard with improved busbar mounting and load strap feed-through provisions
Assignee: General Electric Co
•
Filing: 1973-09-27
•
Granted: 1974-12-31
•
Expires: 1993-09-27
Abstract
Abstract A switchboard construction utilizes modular, insulative mounting panels to both electrically isolate and physically mount the various busbars, as well as, via line straps, the various electrical devices to the cabinet frame. The mounting panels installed vertically end-to-end also serve as rear barriers for the compartments accommodating the electrical devices. Barrier sheets secured to the front and back of the panels shield personnel from live parts. Load straps pass through apertures in the panels and vertical buses to the rear of the cabinet for convenient load connection. Horizontal bus sections are joined, electrically connected to and mounted by the vertical buses at common locations.
Inventors
- 👤 W Olashaw
- 👤 R Wilbur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:21
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/20; H02B1/21
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
185 words
An electrical switchboard comprising in combination: A. a frame; B. at least one insulative mounting member, including 1. a base plate having means mounting said member to said frame, 2. a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels, 3. retainer means formed in each said channel, and 4. means forming spaced holes in the bottoms of said channels, C. a plurality of spacers each having means engaging said channel retainer means, thereby capturing said spacers in said channels, each said spacer further having means forming a tapped bore therethrough; D. bolts passing through said holes and threaded through said bores, whereby said spacers retain said bolts in erected positions in said channels; E. an elongated busbar disposed in each said channel in overlying relation with said spacers, said busbars having means forming holes through which pass the free end portions of said bolts; and F. nuts threaded on the exposed portions of said bolts extending beyond said busbars to mount said busbars to said member in clamped relation to said spacers.
Claim 2
Dependent Claim
185 words
An electrical switchboard comprising in combination: A. a frame; B. at least one insulative mounting member, including 1. a base plate having means mounting said member to said frame, 2. a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels, 3. retainer means formed in each said channel, and 4. means forming spaced holes in the bottoms of said channels, C. a plurality of spacers each having means engaging said channel retainer means, thereby capturing said spacers in said channels, each said spacer further having means forming a tapped bore therethrough; D. bolts passing through said holes and threaded through said bores, whereby said spacers retain said bolts in erected positions in said channels; E. an elongated busbar disposed in each said channel in overlying relation with said spacers, said busbars having means forming holes through which pass the free end portions of said bolts; and F. nuts threaded on the exposed portions of said bolts extending beyond said busbars to mount said busbars to said member in clamped relation to said spacers.
Claim 3
Dependent Claim
17 words
An electrical switchboard comprising in combination: A. a frame; B. at least one insulative mounting member, including
Claim 4
Dependent Claim
17 words
An electrical switchboard comprising in combination: A. a frame; B. at least one insulative mounting member, including
Claim 5
Dependent Claim
13 words
a base plate having lateral marginal portions mounting said member to said frame,
Claim 6
Dependent Claim
13 words
a base plate having lateral marginal portions mounting said member to said frame,
Claim 7
Dependent Claim
11 words
a base plate having means mounting said member to said frame,
Claim 8
Dependent Claim
11 words
a base plate having means mounting said member to said frame,
Claim 9
Dependent Claim
11 words
a base plate having means mounting said member to said frame;
Claim 10
Dependent Claim
11 words
a base plate having means mounting said member to said frame;
Claim 11
Dependent Claim
13 words
at least one boss carried by one of said sleeve and connector, and
Claim 12
Dependent Claim
13 words
at least one boss carried by one of said sleeve and connector, and
Claim 13
Dependent Claim
23 words
a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels, and
Claim 14
Dependent Claim
23 words
a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels, and
Claim 15
Dependent Claim
30 words
The electrical switchboard defined in claim 1, wherein said retainer means comprises an elongated ridge formed in each opposed rib surface adjacent to and extending parallel with the channel bottoms.
Claim 16
Dependent Claim
22 words
a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels,
Claim 17
Dependent Claim
22 words
a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels,
Claim 18
Dependent Claim
23 words
a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels, and
Claim 19
Dependent Claim
23 words
a plurality of spaced, parallel ribs outstanding from one side of said base plate to define a plurality of elongated, side-by-side channels, and
Claim 20
Dependent Claim
79 words
a clip carried by the other of said sleeve and connector, said clip formed having spaced, opposed resilient tabs, one of said tabs deflecting to ride over said boss during insertion of said connector through said sleeve, the other of said tabs abutting one side of said boss to establish the extent of connector insertion, said one tab returning to its normal position in abutting relation with the other side of said boss to prevent withdrawal of said connector.
Claim 21
Dependent Claim
79 words
a clip carried by the other of said sleeve and connector, said clip formed having spaced, opposed resilient tabs, one of said tabs deflecting to ride over said boss during insertion of said connector through said sleeve, the other of said tabs abutting one side of said boss to establish the extent of connector insertion, said one tab returning to its normal position in abutting relation with the other side of said boss to prevent withdrawal of said connector.
Claim 22
Dependent Claim
93 words
retainer means formed in each said channel; C. a plurality of spacers having means for engaging said channel retainer means, thereby capturing said spacers in said channels; D. an elongated busbar disposed in each said channel in overlying relation with said spacers; E. bolts threadedly engaging said spacers thereby clamping said busbars to said spacers, thus mounting said busbars to said member; F. at least one load connector; and G. means forming aligned apertures in said mounting member, one of said spacers, and one of said busbars through which said load connector extends.
Claim 23
Dependent Claim
93 words
retainer means formed in each said channel; C. a plurality of spacers having means for engaging said channel retainer means, thereby capturing said spacers in said channels; D. an elongated busbar disposed in each said channel in overlying relation with said spacers; E. bolts threadedly engaging said spacers thereby clamping said busbars to said spacers, thus mounting said busbars to said member; F. at least one load connector; and G. means forming aligned apertures in said mounting member, one of said spacers, and one of said busbars through which said load connector extends.
Claim 24
Dependent Claim
8 words
retainer means formed in each said channel, and
Claim 25
Dependent Claim
8 words
retainer means formed in each said channel, and
Claim 26
Dependent Claim
22 words
The electrical switchboard defined in claim 1, which includes a plurality of said members mounted to said frame in end-to-end vertical relation.
Claim 27
Dependent Claim
78 words
retainer means comprising an elongated ridge formed in each opposed rib surface adjacent to and extending parallel with the channel bottoms; C. a plurality of spacers, each having opposed grooved edges engaging said elongated ridges to capture said spacers in said channels; D. an elongated busbar disposed in each said channel in overlying relation with said spacers; and E. bolts threadedly engaging said spacers thereby clamping said busbars to said spacers, thus mounting said busbars to said member.
Claim 28
Dependent Claim
78 words
retainer means comprising an elongated ridge formed in each opposed rib surface adjacent to and extending parallel with the channel bottoms; C. a plurality of spacers, each having opposed grooved edges engaging said elongated ridges to capture said spacers in said channels; D. an elongated busbar disposed in each said channel in overlying relation with said spacers; and E. bolts threadedly engaging said spacers thereby clamping said busbars to said spacers, thus mounting said busbars to said member.
Claim 29
Dependent Claim
123 words
means forming spaced holes in the bottoms of said channels, C. a plurality of spacers each having means engaging said channel retainer means, thereby capturing said spacers in said channels, each said spacer further having means forming a tapped bore therethrough; D. bolts passing through said holes and threaded through said bores, whereby said spacers retain said bolts in erected positions in said channels; E. an elongated busbar disposed in each said channel in overlying relation with said spacers, said busbars having means forming holes through which pass the free end portions of said bolts; and F. nuts threaded on the exposed portions of said bolts extending beyond said busbars to mount said busbars to said member in clamped relation to said spacers.
Claim 30
Dependent Claim
123 words
means forming spaced holes in the bottoms of said channels, C. a plurality of spacers each having means engaging said channel retainer means, thereby capturing said spacers in said channels, each said spacer further having means forming a tapped bore therethrough; D. bolts passing through said holes and threaded through said bores, whereby said spacers retain said bolts in erected positions in said channels; E. an elongated busbar disposed in each said channel in overlying relation with said spacers, said busbars having means forming holes through which pass the free end portions of said bolts; and F. nuts threaded on the exposed portions of said bolts extending beyond said busbars to mount said busbars to said member in clamped relation to said spacers.
Claim 31
Dependent Claim
60 words
The switchboard defined in claim 1 which further includes A. at least one additional spacer having means engaging said channel retainer means, thereby being captured in one of said channels; B. at least one load connector; and C. means forming aligned apertures in said mounting member, said additional spacer and one of said busbars through which said load connector extends.
Claim 32
Dependent Claim
28 words
The switchboard defined in claim 4, which further includes an insulating sleeve lining said apertures in said busbar and said additional spacer to isolate said load connector therefrom.
Claim 33
Dependent Claim
27 words
The switchboard defined in claim 5, which further includes means carried by said load connector and said insulatIng sleeve cooperating to lock said load connector in position.
Claim 34
Dependent Claim
54 words
The switchboard defined in claim 6, wherein said additional spacer includes means forming at least one tapped bore adjacent said aperture therein, said busbar including means forming an opening aligned with said bore, and a screw passing through said busbar opening and threaded into said bore to clamp said busbar to said additional spacer.
Claim 35
Dependent Claim
22 words
The electrical switchboard defined in claim 8, which includes a plurality of said members mounted to said frame in end-to-end vertical relation.
Claim 36
Dependent Claim
17 words
An electrical switchboard comprising, in combination; A. a frame; B. at least one insulative mounting member including
Claim 37
Dependent Claim
17 words
An electrical switchboard comprising, in combination; A. a frame; B. at least one insulative mounting member including
Claim 38
Dependent Claim
24 words
The switchboard defined in claim 10, which further includes an insulating sleeve lining said aperture in said busbar to isolate said load connector therefrom.
Claim 39
Dependent Claim
19 words
The switchboard defined in claim 11, wherein said sleeve is elongated to additionally line said aperture in said spacer.
Claim 40
Dependent Claim
33 words
The switchboard defined in claim 12, wherein said sleeve is formed having an external rim, and the end of said spacer aperture adjacent said channel bottom being recessed to seat said sleeve rim.
Claim 41
Dependent Claim
29 words
The switchboard defined in claim 11, which further includes means carried by said load connector engaging means carried by said insulating sleeve to lock said load connector in position.
Claim 42
Dependent Claim
11 words
The switchboard defined in claim 14, wherein said cooperating means comprises:
Claim 43
Dependent Claim
32 words
The switchboard defined in claim 15, wherein said boss is carried internally on said sleeve and said clip is formed having angularly turned end portions lodged in apertures formed in said connecTor.
Claim 44
Dependent Claim
51 words
The switchboard defined in claim 10, wherein said one spacer includes means forming at least one tapped bore adjacent said aperture therein, said one busbar including means forming an opening aligned with said bore, and said clamping means comprising a screw passing through said busbar opening and threaded into said bore.
References Cited (Backward Citations)
US3210716A
Cited
US3308348A
Cited
US3346776A
Cited
US3493818A
Cited
US3588620A
Cited
US3718816A
Cited
US3710198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |