US5545939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding end restrainer for a rotary electrical component
Assignee: Safran Electrical and Power UK Ltd
•
Filing: 1993-12-14
•
Granted: 1996-08-13
•
Expires: 2013-12-14
Abstract
Abstract A winding end restrainer for a rotary electrical component comprises a hollow body, location member for locating the body against rotation relative to the component and an insert locatable in the body so as to be non-rotatable relative thereto. Chambers are defined between the insert and the body for receiving respective sections of the winding ends. By preventing rotation of the hollow body and the insert relative to the rotary component, stresses which would otherwise be imparted to the winding ends are greatly reduced.
Inventors
- 👤 John Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:44
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/527
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
57 words
A winding end restrainer for a rotary electrical component comprising a hollow body, location means for locating the body against rotation relative to the component and an insert locatable in the body so as to be non-rotatable relative thereto, a chamber being defined between the insert and the body for receiving a section of the winding end.
Claim 2
Dependent Claim
57 words
A winding end restrainer for a rotary electrical component comprising a hollow body, location means for locating the body against rotation relative to the component and an insert locatable in the body so as to be non-rotatable relative thereto, a chamber being defined between the insert and the body for receiving a section of the winding end.
Claim 3
Dependent Claim
29 words
A winding end restrainer according to claim 1 in which two chambers are defined between the insert and the hollow body for receiving end sections of two separate windings.
Claim 4
Dependent Claim
32 words
A winding end restrainer according to claim 1 in which the hollow body is located in use with respect to a member arranged at one axial end of the rotary electrical component.
Claim 5
Dependent Claim
39 words
A winding end restrainer according to claim 3 in which the member is formed with a web which is arranged to separate the two windings, the web defining a recess and the hollow body being located in the recess.
Claim 6
Dependent Claim
20 words
A winding end restrainer according to claim 4 in which the location means comprises respective grooves in the hollow body.
Claim 7
Dependent Claim
25 words
A winding end restrainer according to claim 5 in which the respective grooves receive respective sections of the web between which the recess is defined.
Claim 8
Dependent Claim
38 words
A winding end restrainer according to claim 1 in which in the hollow body is a generally rectangular tube which has a closure at one end and which is open at its other end to receive the insert.
Claim 9
Dependent Claim
51 words
A winding end restrainer according to claim 7 in which two chambers are defined between the insert and the hollow body for receiving end sections of two separate windings, the hollow body having two diagonally opposed notches which form entry points for respective said chambers defined by the winding end restrainer.
Claim 10
Dependent Claim
50 words
A winding end restrainer according to claim 8 in which each chamber defines a section extending in use axially of the rotary electrical component and terminating adjacent a notch in the insert, said section being arranged so as to receive portions of respective end sections of the two separate windings.
Claim 11
Dependent Claim
57 words
A winding end restrainer according to claim 9 in which each chamber defines a further chamber section extending axially of the rotary electrical component and terminating adjacent said notch in the insert, said further sections being arranged to receive further portions of the respective end sections of the windings which then extend out of the chamber sections.
Claim 12
Dependent Claim
20 words
A winding end restrainer according to claim 1 in which the insert is a snug fit within the hollow body.
Claim 13
Dependent Claim
46 words
A winding end restrainer according to claim 1 in which the hollow body has a closure end and an open end, the closure end being provided with one or more feet which serve to space the closure end of the hollow body from an adjacent surface.
Claim 14
Dependent Claim
38 words
A winding end restrainer according to claim 12 in which the closure end is formed with an opening which can receive ends of two separate windings which are to be joined together to connect the windings in series.
Claim 15
Dependent Claim
46 words
A winding end restrainer according to claim 13 in which the opening in the closure end is aligned with an elongate opening the insert whereby the winding ends to be joined together can locate within the bore of the insert in electrical contact with each other.
Claim 16
Dependent Claim
30 words
A winding end restrainer according to claim 14 in which the elongate opening in the insert is, in use, coaxial with an axis of rotation of the rotary electrical component.
Claim 17
Dependent Claim
50 words
A winding end restrainer according to claim 1 assembled on to the rotary electrical component, a retaining member being positioned between the winding end restrainer and an adjacent surface of the rotary electrical component to effect an axial retention of the winding end restrainer relative to the rotary electrical component.
Claim 18
Dependent Claim
19 words
A winding end restrainer according to claim 16 in which the retaining member abuts a surface of the insert.
Claim 19
Dependent Claim
29 words
A winding end restrainer according to claim 16 in which the retaining member is tubular so as to receive ends of the windings extending from the winding end restrainer.
Claim 20
Dependent Claim
17 words
A winding end restrainer according to claim 16 in which the retaining member is an insulation member.
Claim 21
Dependent Claim
70 words
An electric generator which includes a rotor supporting a winding, the rotor including a winding end restrainer comprising a hollow body, location means for locating the body against rotation relative to the rotor and an insert located in the body so as to be non-rotatable relative thereto, a chamber being defined between the insert and the body in which is located a section of a winding end to be restrained.
Claim 22
Dependent Claim
70 words
An electric generator which includes a rotor supporting a winding, the rotor including a winding end restrainer comprising a hollow body, location means for locating the body against rotation relative to the rotor and an insert located in the body so as to be non-rotatable relative thereto, a chamber being defined between the insert and the body in which is located a section of a winding end to be restrained.
References Cited (Backward Citations)
GB1496070A
Cited
US4139789A
Cited
US4603274A
Cited
US4975612A
Cited
US5191248A
Cited
US5258682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-13 | 2000-02-12 | 2000-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-13 | 2004-02-12 | 2004-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-13 | 2008-02-12 | 2008-08-13 | $7700.00 | Window Closed / Lapsed |