Patent US3555316A successfully refreshed from Google Patents.
US3555316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead attachment for dynamoelectric machine and method of making same
Assignee: Controls Company of America
•
Filing: 1968-12-18
•
Granted: 1971-01-12
•
Expires: 1988-12-18
Abstract
Abstract A coil end and lead connection is embedded in an insulating body which is molded directly around the connection. The insulating body is wedged between adjacent coils with the leads extending through the coil channel.
Inventors
- 👤 Donald D Bleich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:03
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/521; H02K3/522
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
78 words
In a dynamoelectric machine first and second adjacent electric coils relatively spaced from each other and defining an opening between opposed portions of said first and second electrical coils, said first and second electrical coils terminating in ends; a lead connected to the end of each of said electrical coils; means defining a body of electrical insulating material with the connection of said lead and coil ends embedded in said body; and said body wedged in said opening.
Claim 2
Dependent Claim
78 words
In a dynamoelectric machine first and second adjacent electric coils relatively spaced from each other and defining an opening between opposed portions of said first and second electrical coils, said first and second electrical coils terminating in ends; a lead connected to the end of each of said electrical coils; means defining a body of electrical insulating material with the connection of said lead and coil ends embedded in said body; and said body wedged in said opening.
Claim 3
Dependent Claim
35 words
The dynamoelectric machine of claim 1 including means defining complementary, interengaging wedge surfaces on said opposed coil portions and said body; and wherein said body is wedged between said opposed portions of said electrical coil.
Claim 4
Dependent Claim
26 words
The dynamoelectric machine of claim 2 wherein the distance between said wedge surfaces of both said body and said coil portions increases outwardly of said opening.
Claim 5
Dependent Claim
50 words
The dynamoelectric machine of claim 1 wherein said leads extend from said body and said connection into said opening; and wherein said means defining said body also defines wedge surfaces engaging said opposed electrical coil portions and having a generally expanding width therebetween in a direction outwardly of said opening.
Claim 6
Dependent Claim
91 words
The dynamoelectric machine of claim 1 including means defining a coil channel; wherein said first and second windings extend through said channel and are relatively spaced to define said opening in said channel, the ends of said coil extending into said opening; and wherein said means defining said body also defines wedge surfaces engaging opposed portions of said coils and progressing from a first distance therebetween within said opening to a distance therebetween outside of said opening which is larger than the distance between the opposed portions of said electrical coils.
Claim 7
Dependent Claim
33 words
The dynamoelectric machine of claim 5 wherein said leads extend from said body into said opening so that tension on said leads tends to wedge said body between said opposed electrical coil portions.
Claim 8
Dependent Claim
124 words
The dynamoelectric machine of claim 1 including means defining a coil channel; wherein said first and second coils extend through said channel and are relatively spaced to define said opening as an axial extension through said channel, the ends of said coils extending into said opening; wherein said body engages opposed portions of said coils and expands from a width in said opening no greater than the distance between said opposed electrical coil portions to an enlarged portion having a width greater than the distance between said opposed coil portions; and wherein said leads extend from said body and connection into said opening away from said enlarged portion so that tension on said leads tends to wedge said body between said opposed coil portions.
Claim 9
Dependent Claim
13 words
The dynamoelectric machine of claim 7 wherein said body is made of polyvinylchloride.
Claim 10
Independent Claim
93 words
The method of connecting coil ends of a dynamoelectric machine to leads and of anchoring that connection in the machine, said method comprising the steps of providing first and second adjacent electrical coil in said machine in an arrangement to provide an opening between opposed portions of said first and second coils; connecting leads to the ends of said coils; embedding the connections of said leads and coil ends in an electrical insulating body; and wedging said body in said opening to anchor said lead and coil end connections in Said dynamoelectric machine.
Claim 11
Independent Claim
93 words
The method of connecting coil ends of a dynamoelectric machine to leads and of anchoring that connection in the machine, said method comprising the steps of providing first and second adjacent electrical coil in said machine in an arrangement to provide an opening between opposed portions of said first and second coils; connecting leads to the ends of said coils; embedding the connections of said leads and coil ends in an electrical insulating body; and wedging said body in said opening to anchor said lead and coil end connections in Said dynamoelectric machine.
Claim 12
Dependent Claim
54 words
The method of claim 9 including the steps of said lead and coil end connections being positioned in a mold; said body being molded around said lead and coil end connections in said mold; and wedging said body with said lead and coil connections embedded therein into said opening between said opposed coil portions.
Claim 13
Dependent Claim
20 words
The method of claim 10 wherein said leads are drawn through said opening in wedging said body in said opening.
Claim 14
Dependent Claim
18 words
The method of claim 9 wherein said body is wedged between said opposed coil portions in said opening.
References Cited (Backward Citations)
USRE24073E
Cited
US2872505A
Cited
US3093434A
Cited
US3293463A
Cited
US3304447A
Cited
US3304448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |