US3656015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined linear motor and carriage
Assignee: INFORMATION MAGNETICS CORP
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Filing: 1971-05-04
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Granted: 1972-04-11
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Expires: 1991-05-04
Abstract
Abstract A linear electric motor has a carriage mounted on the side of the motor for motion parallel to the armature axis and the side of the motor is slotted to accommodate a mechanical connection so that the carriage supports the armature. Torque on the carriage is minimized by axially slicing away an axially parallel part of the normally round motor to locate the carriage ways as close to the motor armature axis as is commercially practicable. The load and the servo feedback transducers are mounted on the carriage at the node point of deflection of the carriage caused by armature torque.
Inventors
- 👤 Donald E Gillum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:33
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/035; H02K41/0352; H02K41/0354; H02K41/0356
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
107 words
A linear motor and side mounted outboard carriage combination comprising: a. a motor shell of magnetic material having a motion axis; b. an armature reciprocable along said axis for a stroke distance; c. an axially elongated opening in one side of said motor shell having a length to accommodate said armature stroke distance; d. carriage ways secured immediately adjacent to the exterior of the motor shell at the region of said opening; e. a carriage mounted on said ways and supporting said armature through said opening; f. and means for supplying current to said armature, whereby said armature reciprocates within the motor shell and moves said carriage.
Claim 2
Dependent Claim
107 words
A linear motor and side mounted outboard carriage combination comprising: a. a motor shell of magnetic material having a motion axis; b. an armature reciprocable along said axis for a stroke distance; c. an axially elongated opening in one side of said motor shell having a length to accommodate said armature stroke distance; d. carriage ways secured immediately adjacent to the exterior of the motor shell at the region of said opening; e. a carriage mounted on said ways and supporting said armature through said opening; f. and means for supplying current to said armature, whereby said armature reciprocates within the motor shell and moves said carriage.
Claim 3
Dependent Claim
40 words
A linear motor and carriage combination as set forth in claim 1, wherein the carriage has a load support means located at the node point of flexure of the carriage under the influence of the moments transmitted by the armature.
Claim 4
Dependent Claim
52 words
A linear motor and carriage combination as set forth in claim 1, wherein the carriage suppoRts a moveable element of a velocity tachometer and the motor frame supports a stationary element of a velocity tachometer, and the mounting location on the carriage for the moveable element is located at a flexure node.
Claim 5
Dependent Claim
154 words
A linear motor and side mounted carriage combination comprising: a. a generally cylindrical core of magnetic material; b. field magnets in the form of an axial segment of a cylindrical tube spaced from said core to define a working air gap and having an axial section devoid of magnets; c. a shell of magnetic material surrounding said magnets; d. at least one low reluctance magnetic path connecting the shell and the core; e. a cord section formed on the magnetic shell in said magnet-absent region of the motor and having an axially extending slot; f. carriage ways mounted on said shell; g. a carriage mounted on said ways for reciprocation close to said opening; h. an armature extending around the core and mechanically connected to the carriage through said slot; i. and means for supplying current to said armature to cause it to reciprocate within said working air gap and thereby move said carriage.
Claim 6
Dependent Claim
154 words
A linear motor and side mounted carriage combination comprising: a. a generally cylindrical core of magnetic material; b. field magnets in the form of an axial segment of a cylindrical tube spaced from said core to define a working air gap and having an axial section devoid of magnets; c. a shell of magnetic material surrounding said magnets; d. at least one low reluctance magnetic path connecting the shell and the core; e. a cord section formed on the magnetic shell in said magnet-absent region of the motor and having an axially extending slot; f. carriage ways mounted on said shell; g. a carriage mounted on said ways for reciprocation close to said opening; h. an armature extending around the core and mechanically connected to the carriage through said slot; i. and means for supplying current to said armature to cause it to reciprocate within said working air gap and thereby move said carriage.
Claim 7
Dependent Claim
24 words
A linear motor as set forth in claim 4 wherein the means for supplying current to the armature includes conductors extending through said slot.
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |