Patent JPS52123731A successfully refreshed from Google Patents.
US3871069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of assembling an electric motor device and heat sink
Assignee: Black and Decker Corp
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Filing: 1973-08-27
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Granted: 1975-03-18
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Expires: 1993-08-27
Abstract
Abstract An electric motor housing and heat sink, and the method of assembling the same, in which a housing, constructed of electrically insulating material subject to thermal distortion, includes integral means for orienting and securing a metal heat sink therein, the latter having passages through which cooling air is drawn. The orienting means comprises deformable or meltable means such as pins integral with the housing and adapted to extend through apertures in the heat sink. The method includes assembling and retaining the heat sink into an operative integral position in the housing by deforming, for example, melting the interfitted housing pins into retaining relation against the heat sink. In addition, a shaft bearing may either be preassembled in the heat sink before assembly to the housing, or the heat sink bored and the bearing inserted therein after the heat sink is assembled to the housing.
Inventors
- 👤 Dale Christian Grieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:55
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/02; H02K9/04; H02K9/06; B; B25; B25F; B25F5/00; B25F5/008; B25F5/02; H02K15/00; H02K15/14; H02K5/00; H02K5/04; H02K5/08; H02K5/16; H02K5/167; H02K5/1672; H02K9/22; H02K9/227; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
The method of producing an assembled metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable means formed integral therewith, placing said bearing support and heat sink on said deformable means, deforming said deformable means into retaining engagement with said bearing support and heat sink, accurately locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 2
Independent Claim
104 words
The method of producing an assembled metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable means formed integral therewith, placing said bearing support and heat sink on said deformable means, deforming said deformable means into retaining engagement with said bearing support and heat sink, accurately locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 3
Independent Claim
110 words
The method of producing an assembled metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable means formed integral therewith, placing said bearing support and heat sink on said deformable means, deforming said deformable means into retaining engagement with said bearing support and heat sink, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing, and assembling a bearing in said bearing bore.
Claim 4
Independent Claim
110 words
The method of producing an assembled metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable means formed integral therewith, placing said bearing support and heat sink on said deformable means, deforming said deformable means into retaining engagement with said bearing support and heat sink, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing, and assembling a bearing in said bearing bore.
Claim 5
Independent Claim
105 words
The method of producing an assembled apertured metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable projections formed integral therewith, placing said apertured bearing support and heat sink over said deformable projections, deforming said deformable projections into retaining engagement with said bearing support and heat sink, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 6
Independent Claim
105 words
The method of producing an assembled apertured metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable projections formed integral therewith, placing said apertured bearing support and heat sink over said deformable projections, deforming said deformable projections into retaining engagement with said bearing support and heat sink, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 7
Independent Claim
108 words
The method of producing an assembled apertured metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable projections formed integral therewith, placing said apertured bearing support and heat sink over said deformable projections, deforming said deformable projections by ultrasonic excitation into retaining engagement with said bearing support and heat sink, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 8
Independent Claim
108 words
The method of producing an assembled apertured metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing constructed at least in part of a thermoplastic material and having deformable projections formed integral therewith, placing said apertured bearing support and heat sink over said deformable projections, deforming said deformable projections by ultrasonic excitation into retaining engagement with said bearing support and heat sink, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 9
Independent Claim
132 words
The method of producing an assembled apertured metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing construCted at least in part of a thermoplastic material and having deformable projections formed integral therewith, selecting a metal bearing support and heat sink having counterbored apertures, placing said apertured bearing support and heat sink over said deformable projections, deforming said deformable projections causing the material of said projections to flow into said counterbores whereby to securely retain said bearing support and heat sink in engagement with said housing, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
Claim 10
Independent Claim
132 words
The method of producing an assembled apertured metal bearing support and heat sink, and electric motor housing, comprising the steps of: selecting an electric motor housing construCted at least in part of a thermoplastic material and having deformable projections formed integral therewith, selecting a metal bearing support and heat sink having counterbored apertures, placing said apertured bearing support and heat sink over said deformable projections, deforming said deformable projections causing the material of said projections to flow into said counterbores whereby to securely retain said bearing support and heat sink in engagement with said housing, locating said assembled motor housing and bearing support and heat sink by means engageable with said motor housing, and machining a bearing bore in said bearing support and heat sink in accurate relation to said motor housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |