US4982122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for insulating liquid-cooled stator coil headers and connectors
Assignee: Siemens Energy Inc
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Filing: 1989-04-12
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Granted: 1991-01-01
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Expires: 2009-04-12
Abstract
Abstract An improved method and apparatus for preventing electrical shorts between sets of stator coil headers and accompanying connections is disclosed in which a reinforced, non-conducting cover is fitted over a pair of stator coil headers, or a stator coil header and an adjacent phase connector. Thereafter, the cavity formed by the fitted cover can be filled with an insulating, solidifying or polymerizing material or resin. Use of such an apparatus insulates the entire header apparatus and prevents any accidental shorting between sets of stator coil ends.
Inventors
- 👤 Charles M. Rowe
- 👤 Hector O. Ponce
- 👤 Leonard B. Simmonds
- 👤 Emil M. Fort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:09
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/50; H02K3/505; H02K15/00; H02K15/30; H02K15/33; H02K15/35; H02K15/38; H02K3/04; H02K3/22
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
51 words
An apparatus for preventing electrical shorts between sets of stator coil water-cooling headers having associated connections comprising: an open-ended, tubular insulating cover having a substantially constant cross-section fitted over a pair of stator coil headers having an associated connection wherein the cover extends over the stator coil headers and associated connections.
Claim 2
Independent Claim
51 words
An apparatus for preventing electrical shorts between sets of stator coil water-cooling headers having associated connections comprising: an open-ended, tubular insulating cover having a substantially constant cross-section fitted over a pair of stator coil headers having an associated connection wherein the cover extends over the stator coil headers and associated connections.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 wherein the fitted cover is filled with an insulating, solidifying or polymerizing material or resin.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 wherein the insulating cover is comprised of reinforced composite.
Claim 5
Dependent Claim
48 words
The apparatus of claim 1 wherein the insulating cover is used to insulate stator coils connected in phase with other stator coils by having a portion of a wall of said insulating cover removed to allow a phase connector to pass through said wall of said insulating cover.
Claim 6
Dependent Claim
32 words
The apparatus of claim 1 wherein the insulating cover has sides that are adjustable in length so that the insulating cover can be tightly fitted around said pair of stator coil ends.
Claim 7
Dependent Claim
58 words
A generator with a plurality of water-cooled stator coils wherein pairs of said stator coils are connected by a connector and are insulated from other pairs of said stator coils by an open-ended, tubular insulating cover having a substantially constant cross-section that is fitted over a pair of said stator coils and extends over said stator coil connectors.
Claim 8
Dependent Claim
58 words
A generator with a plurality of water-cooled stator coils wherein pairs of said stator coils are connected by a connector and are insulated from other pairs of said stator coils by an open-ended, tubular insulating cover having a substantially constant cross-section that is fitted over a pair of said stator coils and extends over said stator coil connectors.
Claim 9
Dependent Claim
17 words
The generator of claim 6 wherein the fitted covers are filled with an insulating material or resin.
Claim 10
Dependent Claim
14 words
The generator of claim 6 wherein the fitted covers are comprised of reinforced composite.
Claim 11
Dependent Claim
48 words
The generator of claim 6 wherein the insulating cover is used to insulate stator coils connected in phase with other stator coils by having a portion of a wall of said insulating cover removed to allow a phase connector to pass through said wall of said insulating cover.
Claim 12
Dependent Claim
32 words
The generator of claim 6 wherein the insulating cover has sides that are adjustable in length so that the insulating cover can be tightly fitted around said pair of stator coil ends.
Claim 13
Independent Claim
77 words
A method of insulating stator coil headers wherein pairs of said stator coil headers are connected by a connector comprising: insulating a pair of stator coil headers from other pairs of said stator coil headers by fitting an open-ended, tubular insulating cover having a substantially constant cross-section over a pair of said stator coil headers prior to connecting said stator coil headers to a main water manifold wherein said insulating cover extends over said stator coil connector.
Claim 14
Independent Claim
77 words
A method of insulating stator coil headers wherein pairs of said stator coil headers are connected by a connector comprising: insulating a pair of stator coil headers from other pairs of said stator coil headers by fitting an open-ended, tubular insulating cover having a substantially constant cross-section over a pair of said stator coil headers prior to connecting said stator coil headers to a main water manifold wherein said insulating cover extends over said stator coil connector.
Claim 15
Dependent Claim
25 words
The method of claim 11 wherein the fitted cover is filled with an insulating material or resin after being fitted over said stator coil headers.
Claim 16
Dependent Claim
14 words
The method of claim 11 wherein the fitted cover is comprised of reinforced composite.
Claim 17
Dependent Claim
47 words
The method of claim 11 wherein the insulating cover is used to insulate stator coils connected in phase with other stator coils by removing a portion of a wall of said insulating cover to allow a phase connector to pass through said wall of said insulating cover.
Claim 18
Dependent Claim
30 words
The method of claim 11 wherein the insulating cover has sides that are adjustable in length and the insulating cover is tightly fitted around said pair of stator coil ends.
Claim 19
Independent Claim
82 words
An apparatus for preventing electrical shorts between sets of stator coil water-cooling headers having associated connections comprising: an open-ended, tubular insulating cover comprised of reinforced composite and having a substantially constant cross-section wherein the insulating cover has sides that adjustable in length; the insulating cover fitted over a pair of stator coil headers having an associated connection wherein the cover extends over the stator coil headers and associated connections; and an insulating, solidifying or polymerizing material or resin filling said fitted cover.
Claim 20
Independent Claim
82 words
An apparatus for preventing electrical shorts between sets of stator coil water-cooling headers having associated connections comprising: an open-ended, tubular insulating cover comprised of reinforced composite and having a substantially constant cross-section wherein the insulating cover has sides that adjustable in length; the insulating cover fitted over a pair of stator coil headers having an associated connection wherein the cover extends over the stator coil headers and associated connections; and an insulating, solidifying or polymerizing material or resin filling said fitted cover.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |