US3881369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-axial positioner
Assignee: Xerox Corp
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Filing: 1973-12-26
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Granted: 1975-05-06
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Expires: 1993-12-26
Abstract
Abstract A combination X-Y positioning mechanism is disclosed. A first link is linearly reciprocable relative to a frame and a second link is linearly reciprocable relative to the first link. The directions of relative reciprocation are mutually perpendicular. The second link is connected at each end to a flexible belt which engages a series of pulleys between its ends. Two of the pulleys are connected to reversible motors for operation in either direction of rotation. Thus, a member to be moved (connected to the second link) can be positioned at any coordinate position on an X-Y coordinate plane.
Inventors
- 👤 John H Looney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:00
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/12; F16H37/14; G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/115; G03B21/116; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6271; G03B27/6292; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/18848
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A drive mechanism for positioning a driven member at any desired coordinate position on an X-Y coordinate plane, including: a frame, a first link operatively connected to and reciprocable relative to said frame in an X direction, a second link opratively connected to and reciprocable relative to said first link in a Y direction, normal to said X direction, a first and a second pulley rotatably mounted to first and second reversible drive motors respectively, said drive motors being mounted on said frame, a third and a fourth pulley rotatably mounted on said first link, a drive belt connected at each of its ends to said second link and operatively engaging said pulleys, said drive motors being selectively actuable in either direction of rotation and braked against rotation when not energized for rotation, to effect a desired direction of displacement of the driven member in said X-Y coordinate plane.
Claim 2
Dependent Claim
149 words
A drive mechanism for positioning a driven member at any desired coordinate position on an X-Y coordinate plane, including: a frame, a first link operatively connected to and reciprocable relative to said frame in an X direction, a second link opratively connected to and reciprocable relative to said first link in a Y direction, normal to said X direction, a first and a second pulley rotatably mounted to first and second reversible drive motors respectively, said drive motors being mounted on said frame, a third and a fourth pulley rotatably mounted on said first link, a drive belt connected at each of its ends to said second link and operatively engaging said pulleys, said drive motors being selectively actuable in either direction of rotation and braked against rotation when not energized for rotation, to effect a desired direction of displacement of the driven member in said X-Y coordinate plane.
Claim 3
Dependent Claim
129 words
A drive mechanism as defined in claim 1 in which said driven member is displaced in a first direction when said motors are operating in a first combination of rotational direction, and in a direction the reverse of said first direction when said motors are operating in rotational directions opposite to said first combination, and in a second direction nOrmal to said first direction when said motors are operating in a second combination of rotational directions and in a direction the reverse of said second direction when said motors are operating in rotational directions opposite to said second combination, said second combination of rotational directions differing from said first combination of rotational directions by one of said motors operating in opposite rotational directions in said first and second combinations.
Claim 4
Dependent Claim
70 words
A drive mechanism as defined in claim 1 wherein said drive motors cooperate to drive said drive belt additively for displacement of the driven member in a first direction, subtractively for displacement of the driven member in a second direction normal to said first direction, and individually one motor at a time for displacement of the driven member along a locus having components of said first and said second direction.
References Cited (Backward Citations)
US3491716A
Cited
US3611819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |