US3753281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for aligning motor assembly
Assignee: Robbins & Myers
•
Filing: 1970-10-23
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Granted: 1973-08-21
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Expires: 1990-10-23
Abstract
Abstract Means for aligning the rotating shaft with the outside diameter of the stator of an electric motor subassembly comprising positioning the stator in a unique fixture, applying an adhesive to the mating surface of the stator, placing the head assembly which has been provided with an opening for receiving said shaft onto said stator in aligned relation thereto until said adhesive sets or cures.
Inventors
- 👤 R Arlt
- 👤 T Hennessey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:55
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/16; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53265
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
A fixture for pre-aligning the stator and rotating shaft of an electric motor having only a single end bearing for said shaft, comprising a base having an annular portion to define a recess therein, said recess being larger than said stator, a bore in the bottom of said recess for receiving a mandrel, a mandrel in said bore, means in said annular portion for exerting pressure in a direction normal to said mandrel, to fix the location, radially, of a stator seated therein, and means at each end of said annular portion for fixing the axial position of a stator received therein.
Claim 2
Dependent Claim
102 words
A fixture for pre-aligning the stator and rotating shaft of an electric motor having only a single end bearing for said shaft, comprising a base having an annular portion to define a recess therein, said recess being larger than said stator, a bore in the bottom of said recess for receiving a mandrel, a mandrel in said bore, means in said annular portion for exerting pressure in a direction normal to said mandrel, to fix the location, radially, of a stator seated therein, and means at each end of said annular portion for fixing the axial position of a stator received therein.
Claim 3
Dependent Claim
15 words
The fixture according to claim 1, wherein said normal pressure means include a screw clamp.
Claim 4
Dependent Claim
34 words
The fixture according to claim 1, wherein said mandrel is provided with a reduced portion, the diameter of which substantially equals the shaft diameter of the electric motor to be aligned with said stator.
Claim 5
Dependent Claim
30 words
The fixture according to claim 1, wherein one of said means for controlling the axial movement of the stator comprises a spring plate disposed adjacent the bottom of said recess.
Claim 6
Dependent Claim
22 words
The fixture according to claim 1, including a pair of spring-biased clamps disposed along and acting within a plane intersecting said mandrel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |