US4288710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism
Assignee: Sola International Inc
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Filing: 1980-02-25
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Granted: 1981-09-08
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Expires: 2000-02-25
Abstract
Abstract Driving an object along a given path with a standard pitch lead screw operated by a stepping motor. Adjustment is provided for accurately completing, with full motor steps, various excursions of object travel ordinarily requiring less than a full motor step for completion of the travel. The above is accomplished by driving the lead screw askew of the axis of desired object travel.
Inventors
- 👤 W. Duane Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:24
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
Apparatus for driving an object along given path with a lead screw operated by a stepping motor wherein the improvement comprises: a main support for said apparatus having a slideway and slide thereon, the latter carrying said object for movement along said given path; a bracket supporting said lead screw and motor, said bracket being pivotally connected to said main support for selective angular adjustment of axial direction of said lead screw relative to said given path; means pivotally interconnecting said slide and lead screw for moving said slide along said slideway with operation of said lead screw; and means for selectively locking said bracket in various positions of said angular adjustment thereof.
Claim 2
Dependent Claim
113 words
Apparatus for driving an object along given path with a lead screw operated by a stepping motor wherein the improvement comprises: a main support for said apparatus having a slideway and slide thereon, the latter carrying said object for movement along said given path; a bracket supporting said lead screw and motor, said bracket being pivotally connected to said main support for selective angular adjustment of axial direction of said lead screw relative to said given path; means pivotally interconnecting said slide and lead screw for moving said slide along said slideway with operation of said lead screw; and means for selectively locking said bracket in various positions of said angular adjustment thereof.
Claim 3
Dependent Claim
52 words
The apparatus of claim 1 wherein said means for interconnecting said slide and lead screw includes a second slideway and second slide thereon, said second slideway being connected to said first-mentioned slide and extending thereacross; and a nut threaded on said lead screw, said nut being pivotally connected to said second slide.
Claim 4
Dependent Claim
29 words
Apparatus according to claim 1 wherein said means for locking said bracket comprises set screws in said bracket, said screws being arranged for selective tightening against said main support.
Claim 5
Dependent Claim
28 words
Apparatus according to claim 1 wherein said bracket is of a generally U-shaped configuration with said lead screw extending thereacross and said motor fixed to one end thereof.
Claim 6
Dependent Claim
40 words
Apparatus according to claim 4 wherein said bracket is pivotally connected to said main support intermediately of the extension of said lead screw for selectively setting said lead screw askew of said path of said slide which carries said object.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |