US3596526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for producing relative movement between two bodies
Assignee: Individual
•
Filing: 1969-01-07
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Granted: 1971-08-03
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Expires: 1989-01-07
Abstract
Abstract Means for moving one body relative to another comprises a main toothed rack carried on one body and at least three actuators carried on the other body. Each actuator carries a stub rack of similar form to the main rack and is operable to force the stub rack into engagement with the main rack. The spacing between the actuators causes the bodies to move relative to one another in the required direction.
Inventors
- 👤 Maurice Woolmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:29
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/022; B23Q16/023; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18992
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
Means for producing relative movement between two bodies comprising a main toothed rack attached to one of the two bodies and at least three actuators attached to the other body, each actuator comprising a stub toothed rack having a plurality of teeth of the same tooth pitch as the main rack and being operable to force the teeth thereof into engagement with the main toothed rack, the stub racks being spaced from one another along the main rack by a distance differing from an integral number of rack tooth pitches by a like fraction of a pitch equal to the reciprocal of the number of actuators.
Claim 2
Dependent Claim
106 words
Means for producing relative movement between two bodies comprising a main toothed rack attached to one of the two bodies and at least three actuators attached to the other body, each actuator comprising a stub toothed rack having a plurality of teeth of the same tooth pitch as the main rack and being operable to force the teeth thereof into engagement with the main toothed rack, the stub racks being spaced from one another along the main rack by a distance differing from an integral number of rack tooth pitches by a like fraction of a pitch equal to the reciprocal of the number of actuators.
Claim 3
Dependent Claim
43 words
Means as claimed in claim 1 in which the stub racks are spaced from one another by a distance equal to an integral number of rack tooth pitches plus a fraction of a pitch equal to the reciprocal of the number of actuators.
Claim 4
Dependent Claim
43 words
Means as claimed in claim 1 in which the stub racks are spaced from one another by a distance equal to an integral number of rack tooth pitches minus a fraction of a pitch equal to the reciprocal of the number of actuators.
Claim 5
Dependent Claim
10 words
Means as claimed in claim 1 which includes three actuators.
Claim 6
Dependent Claim
12 words
Means as claimed in claim 1 in which the actuators are electromagnets.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |