Patent US4386280A successfully refreshed from Google Patents.
US4386280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable contactless transmission clamp assembly system
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1980-05-01
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Granted: 1983-05-31
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Expires: 2000-05-01
Abstract
Abstract A method and apparatus for electrical transmission, wherein an electric current is applied to the primary winding of a mains transformer the secondary winding of which consists of at least one spiral, and a corresponding electric current is collected at the secondary winding of at least one distribution transformer, the primary winding of which consists of said spiral, while the secondary winding of the distribution transformer is mounted in a removable member.
Inventors
- 👤 Jean-Louis Ricaud
- 👤 Pierre R. Briez
- 👤 Pierre Sajot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:33
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/22; G; G01; G01R; G01R15/00; G01R15/14; G01R15/18; G01R15/183; G01R15/185; H01; H01F; H01F38/00; H01F38/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
Apparatus for electrical transmission, comprising a mains transformer and at least one distribution transformer, these transformers having a common winding consisting of at least one spiral which defines the secondary winding of the mains transformer and the primary winding of the distribution transformer, the secondary winding of the distribution transformer being mounted in a clamping means which comprises roller bearings capable of rolling on cam surfaces suitable for controlling the opening and closing of the clamp when the latter moves in a specified direction.
Claim 2
Dependent Claim
84 words
Apparatus for electrical transmission, comprising a mains transformer and at least one distribution transformer, these transformers having a common winding consisting of at least one spiral which defines the secondary winding of the mains transformer and the primary winding of the distribution transformer, the secondary winding of the distribution transformer being mounted in a clamping means which comprises roller bearings capable of rolling on cam surfaces suitable for controlling the opening and closing of the clamp when the latter moves in a specified direction.
Claim 3
Dependent Claim
26 words
An apparatus according to claim 1, wherein the removable member is a clamp comprising a handle capable of being gripped by an apparatus for remote-controlled manipulation.
Claim 4
Dependent Claim
42 words
An apparatus according to claim 1, wherein the roller bearings are mounted at the ends of the jaws of the removable clamp, whilst the cam surfaces are formed by the outer surfaces of the spiral or of a sheath surrounding the spiral.
Claim 5
Dependent Claim
32 words
An apparatus according to claim 1, wherein the roller bearings are mounted on travelling blocks integral with the jaws of the removable clamp, the cam surfaces being formed on a detachable member.
Claim 6
Dependent Claim
35 words
An apparatus according to claim 1, wherein the removable member is associated with a member movable in translation in a direction parallel to the axis of the spiral and/or movable in rotation about this axis.
Claim 7
Dependent Claim
23 words
An apparatus for transmitting three-phase electric currents according to claim 3, comprising three clamps for transmitting the three phases of the electric currents.
Claim 8
Dependent Claim
48 words
An apparatus for electrical transmission through a wall according to claim 1, wherein the mains transformer is located on a first side of the wall, the distribution transformer is located on the other side of the wall and the spiral common to these transformers passes through the wall.
Claim 9
Dependent Claim
24 words
An apparatus according to claim 7, wherein the spiral is fixed to the wall in leaktight manner at the points where it passes through.
Claim 10
Dependent Claim
32 words
An apparatus according to claim 7, wherein the part of the spiral located on the other side of the wall is accommodated in a sheath fixed to the wall in leaktight manner.
Claim 11
Dependent Claim
91 words
An apparatus for electrical transmission through a wall according to claim 1, wherein the mains transformer is located on a first side of the wall and the distribution transformer is located on the other side of the wall and a tubular excrescence of said wall connected to the latter at both ends so that the inside of said excrescence communicates with the first side of the wall, whilst the spiral common to the transformers is located on the first side of the wall and inside the tubular excrescence of the wall.
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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) | 1986-05-30 | 1986-11-29 | 1987-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-30 | 1990-11-29 | 1991-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-30 | 1994-11-29 | 1995-05-31 | $7700.00 | Window Closed / Lapsed |