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US3575650A
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US
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Linear high-torque electric stepping motor system
Assignee: Individual
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Filing: 1970-01-08
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Granted: 1971-04-20
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Expires: 1990-01-08
Abstract
Abstract This linear high-torque electric stepping motor system includes a linearly movable armature with pole pieces either consisting of permanent magnets or wound double-headed transverse pole pieces registering with and overlapping the heads of pole pieces of alternate opposite polarities in a pair of stators disposed on opposite sides of the linearly movable armature.
Inventors
- 👤 Werner H Fengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:05
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/03; H02K37/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
A linear high-torque electrical stepping motor, comprising: an elongated supporting structure, an elongated armature movably mounted in said supporting structure for linear motion relativeLy thereto and having multiple spaced armature pole pieces of alternate opposite polarities, and a stator mounted in said supporting structure in proximate relationship with said armature and having multiple stator pole pieces of at least twice the number of said armature pole pieces and arranged in first and second sets disposed in alternate sequence, with the pole pieces of each set having alternate opposite windings imparting alternate opposite polarities stator pole pieces of each set upon energization thereof.
Claim 2
Dependent Claim
102 words
A linear high-torque electrical stepping motor, comprising: an elongated supporting structure, an elongated armature movably mounted in said supporting structure for linear motion relativeLy thereto and having multiple spaced armature pole pieces of alternate opposite polarities, and a stator mounted in said supporting structure in proximate relationship with said armature and having multiple stator pole pieces of at least twice the number of said armature pole pieces and arranged in first and second sets disposed in alternate sequence, with the pole pieces of each set having alternate opposite windings imparting alternate opposite polarities stator pole pieces of each set upon energization thereof.
Claim 3
Dependent Claim
47 words
A linear high-torque electrical stepping motor, according to claim 1, wherein said stator pole pieces are disposed in a linear path, and wherein said armature is slidably mounted in said supporting structure and has its pole pieces disposed in a linear path adjacent the stator pole pieces.
Claim 4
Dependent Claim
27 words
A linear high-torque electrical stepping motor, according to claim 2, wherein means is provided for selectively energizing said sets of stator pole pieces either singly or collectively.
Claim 5
Dependent Claim
61 words
A linear high-torque electrical stepping motor, according to claim 2, wherein said stator pole pieces have heads disposed closely adjacent one another, and wherein said armature pole pieces have widened heads of approximately twice the widths of said stator pole piece heads whereby a single armature pole piece head is capable of spanning a pair of adjacent stator pole piece heads.
Claim 6
Dependent Claim
27 words
A linear high-torque electrical stepping motor, according to claim 1, wherein means is provided for selectively energizing said sets of stator pole pieces either singly or collectively.
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |