Claims
- 1. In a dynamoelectric machine having a housing with an end shield at an end thereof and an oil cap secured to the end shield, comprising in combination: the end shield having a surface, the oil cap secured to the end shield, the end shield having circumferentially spaced protrusions extending out of the surface of the end shield and formed integrally therewith of the material of the end shield, the protrusions having edge means defining with the end shield surface a seat for the oil cap, the oil cap having an end surface that seats against the end shield surface and further having side surface means, the protrusions being deformed generally radially inwardly such that the edge means of the protrusions engage and overlie the side surface means of the oil cap to secure the oil cap to the end shield against both axial and rotational movement relative thereto, said protrusion positioned prior to deformation relative to the side surface means of the oil cap to allow ease of insertion of the oil cap within the close confines of the protrusions.
- 2. In the machine of claim 1, wherein the protrusions are formed by lancing.
- 3. In the machine of claim 1 wherein said protrusions extend in both axial directions, said oil cap being secured to the end shield at one side thereof, and an other oil cap being secured to the end shield at an other side thereof.
- 4. In the machine of claim 3 wherein the protrusions extending in one axial direction alternate with those extending in the other axial direction.
- 5. In the machine of claim 1 wherein the protrusions further comprise bars spaced from the end shield surface and connected at each end thereof.
- 6. In the machine of claim 1 wherein there are at least three said protrusions equally circumferential spaced.
- 7. In the machine of claim 1 wherein the side surface means of the end shield is circular and smooth, whereby the end shield is inserted within the seat in any circumferential orientation prior to deformation of the protrusions.
- 8. In a dynamoelectric machine having a housing with an end shield at an end thereof an oil cap secured to the end shield, comprising in combination: the end shield having a surface, the oil cap secured to the end shield, the end shield having circumferentially spaced protrusions extending out of the surface of the end shield and formed integrally therewith of the material of the end shields, the protrusions having edge means defining with the end shield surface a seat for the oil cap, the oil cap having an end surface that seats against the end shield surface and side surface means, said protrusions being deformed such that the edge means thereof engage and overlie the side surface means of the oil cap to secure the oil cap to the end shield against both axial and rotational movement relative thereto.
- 9. In the machine of claim 8 wherein the side surface means of the end shield is circular and smooth, whereby the end shield is inserted within the seat in any circumferential orientation prior to deformation of the protrusions.
- 10. In the machine of claim 9 wherein there are at least three said protrusions circumferentially equal spaced, and the protrusions further comprise bars spaced from the end shield surface and connected at each end thereof.
- 11. In the machine of claim 10 wherein said protrusions are formed by lancing.
Parent Case Info
This is a divisional of co-pending application Ser. No. 806,028, filed on Dec. 6, 1985, now U.S. Pat. No. 4,711,590.
US Referenced Citations (15)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0284534 |
May 1975 |
AUX |
2426688 |
Apr 1975 |
DEX |
0218504 |
Feb 1985 |
DDX |
Divisions (1)
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Number |
Date |
Country |
Parent |
806028 |
Dec 1985 |
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