US4086508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can for use in canned motor
Assignee: Mayekawa Manufacturing Co
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Filing: 1977-08-15
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Granted: 1978-04-25
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Expires: 1997-08-15
Abstract
Abstract A can for use in a canned motor made of a soft magnetic metal plate. Said metal plate has the magnetically hard direction of the texture oriented to the circumferential direction of the can body. Said metal plate also has the magnetically easy direction of the texture oriented to the normal direction of the can body.
Inventors
- 👤 Katashi Masumoto
- 👤 Ei-ichi Furubayashi
- 👤 Wahei Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:43
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
173 words
A can for use in a canned motor wherein a cylindrical can body made of soft magnetic metal plate having a crystalline structure which is arranged to have the magnetically hard direction of the plate oriented to the circumferential direction of said cylindrical can body, said circumferential direction being perpendicular to the stator slots of said motor, said crystalline structure being such that: when the material of said metal plate has a body centered cubic crystal structure, a direction different by more than 35° from the direction of the crystal axis <001> is in parallel to said circumferential direction of said cylindrical can body; when said metal plate has a face centered cubic structure, a direction different by more than 35° from the direction of the crystal axis <111> is in parallel to said circumferential direction of said cylindrical can body; and when said metal plate has a hexagonal closepacked structure, a direction different by more than 60° from the direction of the crystal axis <00.1> is in parallel to said circumferential direction.
Claim 2
Dependent Claim
173 words
A can for use in a canned motor wherein a cylindrical can body made of soft magnetic metal plate having a crystalline structure which is arranged to have the magnetically hard direction of the plate oriented to the circumferential direction of said cylindrical can body, said circumferential direction being perpendicular to the stator slots of said motor, said crystalline structure being such that: when the material of said metal plate has a body centered cubic crystal structure, a direction different by more than 35° from the direction of the crystal axis <001> is in parallel to said circumferential direction of said cylindrical can body; when said metal plate has a face centered cubic structure, a direction different by more than 35° from the direction of the crystal axis <111> is in parallel to said circumferential direction of said cylindrical can body; and when said metal plate has a hexagonal closepacked structure, a direction different by more than 60° from the direction of the crystal axis <00.1> is in parallel to said circumferential direction.
Claim 3
Dependent Claim
21 words
A can for use in a canned motor claimed in claim 1 wherein said soft magnetic metal plate is silicon steel.
Claim 4
Dependent Claim
22 words
A can for use in a canned motor claimed in claim 1 wherein said soft magnetic metal plate is ferritic stainless steel.
Claim 5
Dependent Claim
25 words
A can for use in a canned motor claimed in claim 1 wherein said soft magnetic metal plate is ferritic stainless steel with added silicon.
Claim 6
Dependent Claim
195 words
A can for use in a canned motor wherein a cylindrical can body made of a soft magnetic metal plate having a crystalline structure which is arranged to have the magnetically hard direction of the plate oriented to the circumferential direction of said cylindrical can body, said circumferential direction being perpendicular to the stator slots of said motor, and to have the magnetically easy direction of the plate oriented to the normal direction thereof, said crystalline structure being such that: when said metal plate has a body centered cubic crystal structure, a direction different by less than 35° from the direction of the crystal axis <001> is in parallel to a direction normal to the surface of said can body; when said metal plate has a face centered cubic structure, a direction different by less than 35° from the direction of the crystal axis <111> is in parallel to the direction normal to the surface of said can body; and when said metal plate has a hexagonal closepacked structure, a direction different by less than 60° from the direction of the crystal axis < 00.1> is in parallel to the direction normal to said surface.
Claim 7
Dependent Claim
195 words
A can for use in a canned motor wherein a cylindrical can body made of a soft magnetic metal plate having a crystalline structure which is arranged to have the magnetically hard direction of the plate oriented to the circumferential direction of said cylindrical can body, said circumferential direction being perpendicular to the stator slots of said motor, and to have the magnetically easy direction of the plate oriented to the normal direction thereof, said crystalline structure being such that: when said metal plate has a body centered cubic crystal structure, a direction different by less than 35° from the direction of the crystal axis <001> is in parallel to a direction normal to the surface of said can body; when said metal plate has a face centered cubic structure, a direction different by less than 35° from the direction of the crystal axis <111> is in parallel to the direction normal to the surface of said can body; and when said metal plate has a hexagonal closepacked structure, a direction different by less than 60° from the direction of the crystal axis < 00.1> is in parallel to the direction normal to said surface.
Claim 8
Dependent Claim
21 words
A can for use in a canned motor claimed in claim 5 wherein said soft magnetic metal plate is silicon steel.
Claim 9
Dependent Claim
22 words
A can for use in a canned motor claimed in claim 5 wherein said soft magnetic metal plate is ferritic stainless steel.
Claim 10
Dependent Claim
25 words
A can for use in a canned motor claimed in claim 5 wherein said soft magnetic metal plate is ferritic stainless steel with added silicon.
References Cited (Backward Citations)
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Cited
US2128544A
Cited
US2433660A
Cited
US2695370A
Cited
US2993131A
Cited
US2968860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |