US4849581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable joint for electrical busway
Assignee: General Electric Co
•
Filing: 1988-05-16
•
Granted: 1989-07-18
•
Expires: 2008-05-16
Abstract
Abstract The outer surfaces of adjoining electrical busway side frames are shaped to define a protruding rail extending along the vertical axis thereof. A pair of recessed channels formed within the inner surfaces of the side frames of an intervening busway joint receive the busway rails at opposing ends thereof. Clearance arranged within the respective busway joint channels allows lateral movement of the busway side frames relative to the busway joint. Slots are provided on the busway joint side frames for visual indication of the position of the busway rails.
Inventors
- 👤 Harold F. Larkin
- 👤 David A. Hibbert
- 👤 Julie A. Beberman
- 👤 Clarence W. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:01
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/16; H02; H02G; H02G5/00; H02G5/007; H02G5/002
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
131 words
An electric busway joint comprising: a plurality of apertured metal splice plates and a plurality of apertured insulating non-metallic plates arranged within a pair of metallic side frames, said side frames each including a first channel therein and defining a first recess within an interior surface thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from a first end of said first adjacent electric busway section, said first adjacent electric busway section including a pair of first opposing side frames each of which includes first rails extending from an exterior surface thereof; whereby said first channels capture said first rails to allow relative motion between said first electric busway sections and said metallic side frames.
Claim 2
Dependent Claim
131 words
An electric busway joint comprising: a plurality of apertured metal splice plates and a plurality of apertured insulating non-metallic plates arranged within a pair of metallic side frames, said side frames each including a first channel therein and defining a first recess within an interior surface thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from a first end of said first adjacent electric busway section, said first adjacent electric busway section including a pair of first opposing side frames each of which includes first rails extending from an exterior surface thereof; whereby said first channels capture said first rails to allow relative motion between said first electric busway sections and said metallic side frames.
Claim 3
Dependent Claim
32 words
The electric busway joint of claim 1 including first slots through a part of said first channels for visual access to said first rails to indicate the location of said first rails.
Claim 4
Dependent Claim
25 words
The electric busway joint of claim 2 wherein first said rails are provided with an indicating coating to facilitate visual access to said first rails.
Claim 5
Dependent Claim
29 words
The electric busway joint of claim 1 wherein said metallic side frames extend along a longitudinal plane and wherein said first channels are arranged perpendicular to said longitudinal plane.
Claim 6
Dependent Claim
30 words
The electric busway joint of claim 1 including a second channel formed within said metallic side frames at an opposite end and defining a second recess within said interior surface.
Claim 7
Dependent Claim
72 words
The electric busway joint of claim 5 including a second electric busway section adjacent an opposite end of said metallic side frames said splice plates being arranged for receiving bus bar conductors extending from said second busway section, said second busway section including second rails extending from said exterior surface, whereby said second channels capture said second rails to allow relative motion between said second busway section and said metallic side frames.
Claim 8
Dependent Claim
29 words
The electric busway joint of claim 6 including second slots through a part of said second channels to indicate the location of said second rails within said second channels.
Claim 9
Dependent Claim
33 words
The electric busway joint of claim 1 including an insulating tube through said metallic splice plates and a thru-bolt through said insulating tube to fasten said metallic side frames to said splice plates.
Claim 10
Dependent Claim
26 words
The electric busway joint of claim 8 including a tabbed washer and a rectangular washer each arranged outboard said metallic side frames around said insulating tube.
Claim 11
Dependent Claim
39 words
The electric busway joint of claim 9 wherein said tabbed washer includes a plurality of upstanding tabs arranged around said insulating tube and received within slots formed within said rectangular washer to provide anti-turn facility to said rectangular washer.
Claim 12
Dependent Claim
127 words
An electric busway joint comprising: a plurality of apertured metal splice plates and a plurality of apertured insulating non-metallic plates arranged within a pair of metallic side frames, said side frames each including a first slot extending through a first end thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from said first adjacent electric busway section at a first end thereof, said first adjacent electric busway section including a pair of first opposing side frames each of which includes first tabs extending from an exterior surface thereof; whereby said first slots capture said first tabs to allow relative motion between said first electric busway sections and said metallic side frames.
Claim 13
Dependent Claim
127 words
An electric busway joint comprising: a plurality of apertured metal splice plates and a plurality of apertured insulating non-metallic plates arranged within a pair of metallic side frames, said side frames each including a first slot extending through a first end thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from said first adjacent electric busway section at a first end thereof, said first adjacent electric busway section including a pair of first opposing side frames each of which includes first tabs extending from an exterior surface thereof; whereby said first slots capture said first tabs to allow relative motion between said first electric busway sections and said metallic side frames.
Claim 14
Dependent Claim
20 words
The electric busway joint of claim 11 including second slots formed therein at a second end opposite said first end.
Claim 15
Dependent Claim
77 words
The electric busway joint of claim 12 including a second adjacent electric busway section, said splice plates being arranged for receiving bus bar conductors extending from said second adjacent electric busway section at a second end opposite said first end, said second adjacent electric busway section including second tabs extending from an exterior surface thereof, whereby said second slots capture said second tabs to allow relative motion between said second busway section and said metallic side frames.
Claim 16
Dependent Claim
32 words
The electric busway joint of claim 13 including indicia means on said tabs to provide visual verification of the location of said first and second busway sections within said metallic side frames.
Claim 17
Dependent Claim
117 words
An electric busway joint comprising: a plurality of apertured metal splice plates arranged within a pair of metallic side frames, said side frames each including a first slot extending through a first end thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from said first electric busway section at a first end thereof, said first electric busway section including a pair of first opposing side frames each of which includes first tabs extending from an exterior surface thereof; whereby said first slots capture said first tabs to allow relative motion between said first electric busway section and said metallic side frames.
Claim 18
Dependent Claim
117 words
An electric busway joint comprising: a plurality of apertured metal splice plates arranged within a pair of metallic side frames, said side frames each including a first slot extending through a first end thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from said first electric busway section at a first end thereof, said first electric busway section including a pair of first opposing side frames each of which includes first tabs extending from an exterior surface thereof; whereby said first slots capture said first tabs to allow relative motion between said first electric busway section and said metallic side frames.
Claim 19
Dependent Claim
20 words
The electric busway joint of claim 15 including second slots formed therein at a second end opposite said first end.
Claim 20
Dependent Claim
75 words
The electric busway joint of claim 16 including a second electric busway section adjacent an opposite end of said metallic side frames, said splice plates being arranged for receiving bus bar conductors extending from said second electric busway section, and second tabs extending from an exterior surface of said second busway section thereof, whereby said second slots capture said second tabs to allow relative motion between said second busway section and said metallic side frames.
Claim 21
Dependent Claim
33 words
The electric busway joint of claim 15 including indicia means on said tabs to provide visual verification of the location of said first and second electric busway sections within said metallic side frames.
Claim 22
Dependent Claim
121 words
An electric busway joint comprising: a plurality of apertured metal splice plates arranged within a pair of metallic side frames, said side frames each including a first channel therein and defining a first recess within an interior surface thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from said first busway section at a first end thereof, said first electric busway section including a pair of first opposing side frames each of which includes first rails extending from an exterior surface thereof; whereby said first channels capture said first rails to allow relative motion between said first electric busway sections and said metallic side frames.
Claim 23
Dependent Claim
121 words
An electric busway joint comprising: a plurality of apertured metal splice plates arranged within a pair of metallic side frames, said side frames each including a first channel therein and defining a first recess within an interior surface thereof; a first electric busway section adjacent one end of said metallic side frames; said splice plates being arranged for receiving bus bar conductors extending from said first busway section at a first end thereof, said first electric busway section including a pair of first opposing side frames each of which includes first rails extending from an exterior surface thereof; whereby said first channels capture said first rails to allow relative motion between said first electric busway sections and said metallic side frames.
Claim 24
Dependent Claim
32 words
The electric busway joint of claim 19 including first slots through a part of said first channels for visual access to said first rails to indicate the location of said first rails.
Claim 25
Dependent Claim
25 words
The electric busway joint of claim 20 wherein said first rails are provided with an indicating coating to facilitate visual access to said first rails.
Claim 26
Dependent Claim
29 words
The electric busway joint of claim 21 wherein said metallic side frames extend along a longitudinal plane and wherein said first channels are arranged perpendicular to said longitudinal plane.
Claim 27
Dependent Claim
25 words
The electric busway joint of claim 19 including second channels formed therein at an opposite end thereof and defining second recesses within said interior surface.
Claim 28
Dependent Claim
66 words
The electric busway joint of claim 23 wherein said splice plates are arranged for receiving bus bar conductors extending from a second busway section at a second end opposite said first end, said second busway section including second rails extending from said exterior surface, whereby said second channels capture said second rails to allow relative motion between said second busway section and said metallic side frames.
Claim 29
Dependent Claim
29 words
The electric busway joint of claim 21 including second slots through a part of said second channels to indicate the location of said second rails within said second channels.
Claim 30
Dependent Claim
33 words
The electric busway joint of claim 19 including an insulating tube through said metallic splice plates and a thru-bolt through said insulating tube to fasten said metallic side frames to said splice plates.
Claim 31
Dependent Claim
21 words
The electric busway joint of claim 26 including a tabbed washer arranged outboard said metallic side frames around said insulating tube.
Claim 32
Dependent Claim
46 words
The electric busway joint of claim 27 wherein said tabbed washer includes a plurality of upstanding tabs arranged around said insulating tube and received within slots formed within a rectangular washer arranged on top of said tabbed washer to provide anti-turn facility to said rectangular washer.
Claim 33
Dependent Claim
22 words
The electric busway joint of claim 5 wherein said metallic side frames provide electrical continuity between said first and second busway sections.
Claim 34
Dependent Claim
39 words
The electric busway joint of claim 29 including a non-ferrous metal top cover and a non-ferrous metal bottom cover connecting between said first and second busway sections to provide further electrical continuity between said first and second busway sections.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |