US5469291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyrating programmable scanner
Assignee: GEO ACQUISITION CORP
•
Filing: 1993-01-21
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Granted: 1995-11-21
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Expires: 2013-01-21
Abstract
Abstract A device for providing angular displacement of an axis in a direction selected from the X or Y direction or rotational movement about the Z direction with respect to the axis. The device comprises a magnetic core element which produces a magnetic field and defines a Z axis. The core element is capable of displacement in the X and Y directions respectively, and also rotational movement about the Z axis. A coil device proximate the core element introduces a distortion force in the core element in at least one of the X and Y directions or about the Z axis as desired a mounting device suspends the core element with respect to the coil device to permit relative movement therebetween in response to the distortion force.
Inventors
- 👤 George A. Plesko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:22
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/16; G; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/101; G02B26/105; G02B26/12; G02B26/121; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10554; G06K7/10594; G06K7/10603; G06K7/10633; G06K7/10643; G06K7/10653; G06K7/10673; G06K7/10712; G06K7/10762; G06K7/10772; G06K7/10821; G06K7/10881; H02K26/00; H02K7/00; H02K7/06; H02K7/065; H03; H03K; H03K17/00; H03K17/94; G06K2207/00; G06K2207/1013; G06K2207/1016; G06K2207/1017; H02K2201/00; H02K2201/12
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
124 words
A device for providing angular displacement of a core with respect to an axis defined by said core, comprising; a magnetic core element for producing a magnetic field, and defining a Z axis, said core element adapted for at least two movements selected from the group consisting of angular displacement in the X direction, angular displacement in the Y direction, and rotation about the Z axis; coil means proximate said core element for introducing a distortion force in said core element in at least one of said X and Y directions or rotation about the Z direction as desired; and mounting means for suspending said core element with respect to said coil means to permit relative movement therebetween in response to said distortion force.
Claim 2
Independent Claim
124 words
A device for providing angular displacement of a core with respect to an axis defined by said core, comprising; a magnetic core element for producing a magnetic field, and defining a Z axis, said core element adapted for at least two movements selected from the group consisting of angular displacement in the X direction, angular displacement in the Y direction, and rotation about the Z axis; coil means proximate said core element for introducing a distortion force in said core element in at least one of said X and Y directions or rotation about the Z direction as desired; and mounting means for suspending said core element with respect to said coil means to permit relative movement therebetween in response to said distortion force.
Claim 3
Dependent Claim
26 words
The device of claim 1, wherein said mounting means comprises a spring mounting one end of said core element and one end of said coil means.
Claim 4
Dependent Claim
60 words
The device of claim 2 which includes an opening for light to enter one end of said device; a first mirror mounted to the device and stationary with respect to said coil; a second mirror mounted to move in response to movement of said core element; and an exit opening for a scanned beam of light to exit said device.
Claim 5
Dependent Claim
58 words
The device of claim 3, wherein said second mirror is mounted on a wedge shaped mount and generally parallel to said first fixed mirror permitting a beam which enters the device to be reflected from said second moveable mirror and exit the device as a scanned beam proceeding forward in the same general direction as the input beam.
Claim 6
Dependent Claim
27 words
The device of claim 4, wherein the device is configured to cause the input beam to first reflect from said moveable mirror then from said fixed mirror.
Claim 7
Dependent Claim
52 words
The device of claim 3, wherein said second mirror is mounted generally parallel to said first mirror permitting a beam which enters the device to be reflected from said second movable mirror and to exit the device as a scanned beam proceeding forward in the same general direction as the input beam.
Claim 8
Dependent Claim
29 words
The device of claim 1, wherein said mounting means comprises a pair of springs each mounting one end of said core element and one end of said coil means.
Claim 9
Dependent Claim
29 words
The device claim 1, wherein said core element includes an axial mount aligned along said Z axis and positioned to move in response to movement of said core element.
Claim 10
Dependent Claim
22 words
The device of claim 8, wherein said axial mount includes a mirror mounted thereon for movement in response to said distortion force.
Claim 11
Dependent Claim
19 words
The device of claim 9, wherein said mirror is aligned in a plane generally perpendicular to said Z axis.
Claim 12
Dependent Claim
18 words
The device of claim 10, wherein a solenoid coil is attached at one end of said core element.
Claim 13
Dependent Claim
15 words
The device of claim 11, wherein said solenoid coil is wound on a ferromagnetic core.
Claim 14
Dependent Claim
19 words
The device of claim 9, wherein said mirror is aligned in a plane generally parallel to said Z axis.
Claim 15
Dependent Claim
32 words
The device of claim 1, which further includes a ferromagnetic ring surrounding said core element and said coil means includes a coil wound around a portion of the periphery of said ring.
Claim 16
Dependent Claim
65 words
The device of claim 14, wherein said ferromagnetic ring has at least one bearing plate mounted on one end of said ring, said core including an axial mount aligned along said Z axis and positioned to move in response to movement of said core, said mount being journaled in said bearing plate to restrict movement of said mount to rotational movement about said Z axis.
Claim 17
Dependent Claim
52 words
The device of claim 15, wherein said ferromagnetic ring includes a second bearing plate mounted on the opposite end of said ferromagnetic ring to said first bearing plate, said mount also being journaled in said second bearing plate to further restrict angular displacement of said axis to rotation in said Z axis.
Claim 18
Dependent Claim
25 words
The device of claim 14, wherein said mounting means comprises at least one pair of springs each mounted at opposite ends of said magnetic core.
Claim 19
Dependent Claim
24 words
The device of claim 1, wherein said coil means includes a generally annular coil surrounding said Z axis and spaced from said core element.
Claim 20
Dependent Claim
47 words
The device of claim 1, which further includes a ferromagnetic ring surrounding said coil element and spaced from said core element to define a generally annular gap, and said coil means includes a first generally annular coil surrounding said Z axis and mounted in said annular gap.
Claim 21
Dependent Claim
20 words
The device of claim 19, which further includes a second coil around a portion of the periphery of said ring.
Claim 22
Dependent Claim
18 words
The device of claim 20, wherein said magnetic field substantially penetrates only one side of said second coil.
Claim 23
Dependent Claim
25 words
The device of claim 20 wherein, said mounting means comprises at least one pair of springs each mounted at opposite ends of said magnetic core.
Claim 24
Independent Claim
138 words
A device for providing angular displacement of a core with respect to an axis defined by said core, comprising: a magnetic core element for producing a magnetic field, and defining a Z axis, said core element adapted for at least two movements selected from the group consisting of angular displacement in the X direction, angular displacement in the Y direction, and rotation about the Z axis; a ferromagnetic ring surrounding at least a portion of said core element to produce a distortion force in at least one of said X and Y directions or about the Z axis as desired, said ring including a coil wound around a portion of the periphery thereof; and mounting means for suspending said core element with respect to said coil means to permit relative movement therebetween in response to said distortion force.
Claim 25
Independent Claim
138 words
A device for providing angular displacement of a core with respect to an axis defined by said core, comprising: a magnetic core element for producing a magnetic field, and defining a Z axis, said core element adapted for at least two movements selected from the group consisting of angular displacement in the X direction, angular displacement in the Y direction, and rotation about the Z axis; a ferromagnetic ring surrounding at least a portion of said core element to produce a distortion force in at least one of said X and Y directions or about the Z axis as desired, said ring including a coil wound around a portion of the periphery thereof; and mounting means for suspending said core element with respect to said coil means to permit relative movement therebetween in response to said distortion force.
Claim 26
Dependent Claim
17 words
The device of claim 23, wherein said ring comprises a generally annular ring centered on said axis.
Claim 27
Dependent Claim
31 words
The device of claim 23, wherein said ring comprises a generally annular ring centered on said axis and having a gap in its periphery at a location radially opposite said coil.
Claim 28
Dependent Claim
46 words
The device of claim 23, wherein said ring comprises a generally annular ring centered on said axis and having a gap in its periphery and said coil comprises two coils wound on the periphery of said ring and each spaced approximately 90° radially from said gap.
Claim 29
Dependent Claim
46 words
The device of claim 26, wherein said magnetic core element is sized to have a length facing said gap and a width shorter than said length facing said periphery of said ring to provide increased spacing between said element and said ring proximate said two coils.
Claim 30
Dependent Claim
35 words
The device of claim 23, wherein said ring includes a magnetic damper means for reducing generally the annular gap between said ring and said core element at a point about 180° radially from said coil.
Claim 31
Dependent Claim
28 words
The device of claim 28, wherein said magnetic damper means includes a radially inwardly facing screw threaded to adjustably vary the distance between said screw and said coil.
References Cited (Backward Citations)
US4364000A
Cited
US4878721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-20 | 1999-05-22 | 1999-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-20 | 2003-05-22 | 2003-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-20 | 2007-05-22 | 2007-11-21 | $7700.00 | Window Closed / Lapsed |