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US4642504A
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Electric field machine
Assignee: Sarcos Group LC
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Filing: 1983-04-08
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Granted: 1987-02-10
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Expires: 2003-04-08
Abstract
Abstract A microgeometric electric field machine includes arrays of conductors formed on or carried by a plurality of substrates. The conductors on a first group of substrates carry electrical charges, with alternate conductors being charged positively and the other conductors being charged negatively. A second group of substrates are interleaved with the first group in close proximity therewith. Also included is a voltage source for successively supplying alternate positive and negative electrical charges to the conductors of the second group of substrates. Effectively a pattern of alternate positively and negatively charged conductors is established for the second group of substrates and these patterns are caused to move, relative to the substrates, along the arrays of conductors to produce "moving" electric force fields which cause one group of substrates to move with respect to the other group. The substrates may be in the form of stacked discs with the conductors being radially positioned thereon, where one group of discs is caused to rotate with respect to another group. Alternatively, the substrates may be in the form of stacked planes with the conductors positioned in parallel thereon, where one group of planes is caused to move linearly with respect to the other group, and in a direction perpendicular to the conductors. The configuration of the substrates, positioning of the conductors, and interleaving of the substrates and conductors could take a variety of forms.
Inventors
- 👤 Stephen C. Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
H; H02; H02N; H02N1/00; H02N1/002; H02N1/004
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
203 words
An electric field machine comprising first and second pluralities of elongate elements, wherein said elongate elements are capable of being charged with an electrical charge, and each of said elongate elements has a width of between about 200 and 5000 angstroms, the first plurality of elongate elements being disposed in a first array, the second plurality of elongate elements being disposed in a second array which is spaced in close proximity of between about 200 and 5000 angstroms to the first array, with said second array being movable with respect to said first array, either the first or second plurality of elements being electrically charged, with certain elements being charged negatively and the other elements, interspersed among the certain elements, being changed positively, and means for successively applying electrical charges to the other plurality of elements to produce electric force fields which cause the second plurality of elements to move with respect to the first plurality of elements, said electrical charge applying means including means for alternately applying negative charges and positive charges to selected ones of the elements of said other plurality and for alternately applying positive charges and negative charges to the other of such elements interspersed among the selected elements.
Claim 2
Dependent Claim
203 words
An electric field machine comprising first and second pluralities of elongate elements, wherein said elongate elements are capable of being charged with an electrical charge, and each of said elongate elements has a width of between about 200 and 5000 angstroms, the first plurality of elongate elements being disposed in a first array, the second plurality of elongate elements being disposed in a second array which is spaced in close proximity of between about 200 and 5000 angstroms to the first array, with said second array being movable with respect to said first array, either the first or second plurality of elements being electrically charged, with certain elements being charged negatively and the other elements, interspersed among the certain elements, being changed positively, and means for successively applying electrical charges to the other plurality of elements to produce electric force fields which cause the second plurality of elements to move with respect to the first plurality of elements, said electrical charge applying means including means for alternately applying negative charges and positive charges to selected ones of the elements of said other plurality and for alternately applying positive charges and negative charges to the other of such elements interspersed among the selected elements.
Claim 3
Dependent Claim
28 words
An electric field machine as in claim 1 wherein said electrical charge applying means is coupled to the first plurality of elements for successively applying electrical charges thereto.
Claim 4
Dependent Claim
46 words
An electric field machine as in claim 1 wherein said electrical charge applying means comprises conductors coupled to the first plurality of elements, a positive voltage source, a negative voltage source, and switch means for periodically coupling the positive and negative voltage sources to the conductors.
Claim 5
Dependent Claim
30 words
An electric field machine as in claim 1 wherein said electrical charge applying means is coupled to the second plurality of elements for successively applying electrical charges to the elements.
Claim 6
Dependent Claim
49 words
An electric field machine as in claim 4 wherein said electrical charge applying means comprises contact pads coupled to the second plurality of elements and movable therewith, a positive voltage source, a negative voltage source, and means disposed to periodically convey charges from the voltage sources to the pads.
Claim 7
Dependent Claim
43 words
An electric field machine as in claim 1 wherein the elements of the first and second arrays comprise elongate conductors, and wherein alternate ones of the charged elements of said one plurality are charged negatively and the remaining charged elements are charged positively.
Claim 8
Dependent Claim
24 words
An electric field machine as in claim 6 wherein the first and second plurality of elements are disposed in a stacked, spaced apart relationship.
Claim 9
Dependent Claim
19 words
An electric field machine as in claim 1 wherein said second array rotates with respect to said first array.
Claim 10
Dependent Claim
81 words
An electric field machine as in claim 8 wherein said first plurality of elements are arranged in a multiplicity of planes stacked one above another in a spaced-apart relationship, and wherein said second plurality of elements are arranged in a multiplicity of planes interleaved among the planes of the first plurality, generally parallel therewith and rotatable with respect thereto, with the elements in each plane comprising elongate conductors, each extending generally radially outwardly from near the center of the respective plane.
Claim 11
Dependent Claim
81 words
An electric field machine as in claim 9 wherein for each pair of adjacent planes, alternate elements of one of the planes are charged positively with the other elements of that plane being charged negatively, and wherein said electrical charge applying means includes means for applying alternate positive and negative charges in succession to the elements of the other plane to thereby produce an electric force field between said one and said other plane to cause the other plane to rotate.
Claim 12
Dependent Claim
66 words
An electric field machine as in claim 10 wherein the spacing of elements in said one plane is two or more times the spacing of elements in said other plane, and wherein the alternate positive and negative charges applied to the array of elements in said other plane are applied to elements spaced apart substantially the same as the spacing of elements in said one plane.
Claim 13
Dependent Claim
34 words
An electric field machine as in claim 11 wherein said electrical charge applying means comprises brush means disposed to periodically contact and apply charges to elements of said other plane as the plane rotates.
Claim 14
Dependent Claim
37 words
An electric field machine as in claim 12 wherein, the spacing of elements of said other plane is from about 200 to 5000 angstroms, and wherein the spacing between planes is from about 200 to 5000 angstroms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |