Patent US4233580A successfully refreshed from Google Patents.
US4233580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating coupler for transmitting high frequency energy
Assignee: Spinner GmbH
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Filing: 1977-11-22
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Granted: 1980-11-11
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Expires: 1997-11-22
Abstract
Abstract A rotary coupler of the non-contact type has folded resonant spaces when seen in radial section. A large central lead aperture may be provided.
Inventors
- 👤 Leo Treczka
- 👤 Georg Spinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:45
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/06; H01P1/062; H01P1/066; H01P1/068
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
96 words
A rotary coupler for coupling two relatively rotating circuits, said rotary coupler comprising: first means defining a free inner space which permits connection leads to pass therethrough; said rotary coupler having its rotational axis extending lengthwise through said iner space; and second means defining a resonant circuit disposed outside of said inner space and including folded resonant spaces, one of said folded resonant spaces being for energy transmission, and at least one of said folded resonant spaces being equal to between one-fourth and one-half, inclusive, of the principal wavelength to be transmitted via said rotary coupler.
Claim 2
Dependent Claim
96 words
A rotary coupler for coupling two relatively rotating circuits, said rotary coupler comprising: first means defining a free inner space which permits connection leads to pass therethrough; said rotary coupler having its rotational axis extending lengthwise through said iner space; and second means defining a resonant circuit disposed outside of said inner space and including folded resonant spaces, one of said folded resonant spaces being for energy transmission, and at least one of said folded resonant spaces being equal to between one-fourth and one-half, inclusive, of the principal wavelength to be transmitted via said rotary coupler.
Claim 3
Dependent Claim
25 words
A rotary coupler according to claim 1 in which said resonant spaces are defined by conductor parts extending radially with respect to said rotational axis.
Claim 4
Dependent Claim
28 words
A rotary coupler according to claim 1 in which there is a relatively high coupling capacity at a gap between first and second ones of said resonant spaces.
Claim 5
Dependent Claim
26 words
A rotary coupler according to claim 3, in which said coupling capacity is formed by sleeve-like interpenetrating axial conductor sections of a rotor and a stator.
Claim 6
Dependent Claim
19 words
A rotary coupler according to claim 1, in which said resonant spaces define a λ/2 resonator with a short-circuit.
Claim 7
Dependent Claim
37 words
A rotary coupler according to claim 5, in which said resonant circuit has a plane of symmetry and in which a capacitive load is applied at a point of said resonant circuit on said plane of symmetry.
Claim 8
Dependent Claim
36 words
A rotary coupler according to claim 6, in which said resonant circuit has first and second coupling points and in which said capacitive load is arranged so as to shield said first and second coupling points.
Claim 9
Dependent Claim
20 words
A rotary coupler according to claim 6, in which said capacitive load is dimensioned so as to suppress field interferences.
Claim 10
Dependent Claim
30 words
A rotary coupler according to claim 1 further comprising a plurality of coupling and decoupling points distributed circumferentially and each of which is connected to one of said resonant spaces.
Claim 11
Dependent Claim
28 words
A rotary coupler according to claim 9, in which, said coupling points connected to a distributor means the outputs of which correspond to the number of coupling points.
Claim 12
Dependent Claim
52 words
A rotary coupler according to claim 9 in which said coupling points are at least four in number and further comprising a co-axial multiple connection at each of said at least four coupling points constructed to produce the same amplitude and same phase at each of said at least four coupling points.
Claim 13
Dependent Claim
30 words
A rotary coupler according to claim 9 in which coupling at said coupling points is effected via quarter-to semi-rings which form part of a distributor means and an impedance-matching transformer.
Claim 14
Dependent Claim
59 words
A rotary coupler according to claim 1 in which said second means defines a high frequency transmission space having an inner and an outer diameter, said transmission space being folded and short circuited and being folded at its said outer diameter and being provided with a capacitive load at its said inner diameter by means of low-ohmic wave resistances.
Claim 15
Dependent Claim
37 words
A rotary coupler according to claim 13 in which said high frequency transmission space further comprises first and second rotating elements, and in which there is an outer low-ohmic gap between said first and second rotating elements.
Claim 16
Dependent Claim
30 words
A rotary coupler according to claim 1, further comprising mechanical coupling elements for mechanically coupling respective rotatable parts of several of said rotary couplers to be coupled to each other.
Claim 17
Dependent Claim
53 words
A rotary coupler according to claim 15, constructed for combination structurally with another of such couplers, each of said couplers having complementary front and rear connection formations for a stator and a rotor of said couplers, said couplers being connected with input and output coupling points arranged at a distance of approximately λ/2.
Claim 18
Dependent Claim
24 words
A rotary coupler according to claim 16 in which the coupling or decoupling at said rotor and stator is effected at diametrically opposed points.
Claim 19
Dependent Claim
25 words
A rotary coupler according to claim 1 in which said resonant spaces are defined by conductor parts extending axially with respect to said rotational axis.
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) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |