Patent US1305920A successfully refreshed from Google Patents.
Patent US5053595A successfully refreshed from Google Patents.
US5053595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat shrink sleeve with high mu material
Assignee: Delaware Capital Formation Inc
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Filing: 1990-03-27
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Granted: 1991-10-01
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Expires: 2010-03-27
Abstract
Abstract A connector which acts upon itself contains a fusible bonding the connector forming a part of a temperature autoregulating electrical heater whereby upon application of a generally constant a.c. current to the heater, the temperature of the heater rises to and is maintained at slightly above the melting temperature of the fusible material. The circuit which includes the autoregulating heater may take many forms, and in one embodiment a crimping tool forms part of the circuit; in another embodiment, a wire or wires to be joined to the connector as well as the connector form part of the heating circuit; while in another embodiment, a heat shrinkable conductor or plastic or fusible plastic may be employed to grasp an object to be joined to the connector or other object or block the flow of fusible material while in still another embodiment, the fusible material, upon flowing to a prescribed final location, disconnects the system from the current source, and/or may connect a second heating circuit to a source. Autoregulation is achieved at about the Curie temperature of a magnetic material incorporated in the system as a connector, as a layer of a connector, as the jaws of the crimping tool, as part of a member to be joined to another member and the like. In some embodiments, the connector serves as the secondary of an inductive source.
Inventors
- 👤 Rodney L. Derbyshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:54
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0014; B; B23; B23K; B23K1/00; B23K1/002; B23K3/00; B23K3/04; B23K3/047; B23K3/0475; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/32; B29C66/00; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/832; B29C66/8324; B29C66/83241; B29C66/84; B29C66/861; H01; H01R; H01R43/00; H01R43/02; H01R43/0242; B29C65/66; B29C65/68; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/81261; B29C66/81262; B29C66/818; B29C66/8187; B29C66/81871; B29C66/828; B29C66/8286; B29K; B29K2995/00; B29K2995/0003; B29K2995/0008
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
90 words
A structure in which a region of the structure is to be encompassed within a heat shrinkable sleeve comprising a structure having a region to be encompassed within a heat shrinkable sleeve, a heat shrinkable sleeve disposed to encompass said region of said structure, high magnetic permeability material disposed in intimate contact with said heat shrinkable sleeve, and means for heating said high permeability material such that it becomes essentially non-magnetic, said heat shrinkable sleeve having a shrink temperature below that at which said high permeability material becomes essentially non-magnetic.
Claim 2
Dependent Claim
90 words
A structure in which a region of the structure is to be encompassed within a heat shrinkable sleeve comprising a structure having a region to be encompassed within a heat shrinkable sleeve, a heat shrinkable sleeve disposed to encompass said region of said structure, high magnetic permeability material disposed in intimate contact with said heat shrinkable sleeve, and means for heating said high permeability material such that it becomes essentially non-magnetic, said heat shrinkable sleeve having a shrink temperature below that at which said high permeability material becomes essentially non-magnetic.
Claim 3
Dependent Claim
18 words
A structure according to claim 1 wherein said high permeability material is embedded in said heat shrinkable sleeve.
Claim 4
Dependent Claim
22 words
A structure according to claim 1 wherein said high permeability material is in contact with a surface of said heat shrinkable sleeve.
Claim 5
Dependent Claim
23 words
A structure according to claim 1 or claim 2 or claim 3 wherein said high permeability material is in the form of particles.
Claim 6
Dependent Claim
17 words
A structure according to claim 4 wherein said particles are deposited on a surface of said sleeve.
Claim 7
Dependent Claim
18 words
A structure according to claim 5 wherein said particles are formed on an outer surface of said sleeve.
Claim 8
Dependent Claim
18 words
A structure according to claim 5 wherein said particles are formed on an inner surface of said sleeve.
Claim 9
Dependent Claim
15 words
A structure according to claim 3 wherein said high permeability material is a conductive sleeve.
Claim 10
Dependent Claim
23 words
A structure according to claim 3 wherein said material comprises ferromagnetic material in extended intimate contact with an outer surface of said sleeve.
Claim 11
Dependent Claim
23 words
A structure according to claim 3 wherein said material comprises ferromagnetic material in extended intimate contact with an inner surface of said sleeve.
Claim 12
Dependent Claim
21 words
A structure according to claim 1 or claim 2 or claim 3 wherein said high permeability material forms a conductive member.
Claim 13
Dependent Claim
44 words
A structure according to claim 1 wherein said means for heating comprises a coil for producing magnetic flux coupled to said high permeability material, and means for connecting said coil to a means for energizing said coil to cause the production of magnetic flux.
Claim 14
Dependent Claim
17 words
A structure according to claim 1 wherein current is caused to flow through said high permeability material.
Claim 15
Independent Claim
80 words
A device comprising a heat recoverable sleeve, a secondary inductor, a primary winding for inducing current in said secondary inductor, said primary winding being closely coupled to said secondary inductor, and high permeability material disposed to receive current induced in said secondary inductor and to generate heat in said heat recoverable sleeve responsive to the receiving of current thereby, said sleeve recovering to a memory configuration thereof upon heating to a temperature below the Curie temperature of said permeability material.
Claim 16
Independent Claim
80 words
A device comprising a heat recoverable sleeve, a secondary inductor, a primary winding for inducing current in said secondary inductor, said primary winding being closely coupled to said secondary inductor, and high permeability material disposed to receive current induced in said secondary inductor and to generate heat in said heat recoverable sleeve responsive to the receiving of current thereby, said sleeve recovering to a memory configuration thereof upon heating to a temperature below the Curie temperature of said permeability material.
Claim 17
Dependent Claim
22 words
A device according to claim 14 wherein said sleeve, said secondary inductor, and said magnetic material comprise a single, unitary tubular structure.
Claim 18
Independent Claim
23 words
A device according to claims 1, 14 or 15 comprising members to be joined, said sleeve disposed over a junction of said members.
Claim 19
Dependent Claim
87 words
A structure in which a region of the structure is to be encompassed within a heat shrinkable sleeve comprising a structure having a region to be encompassed within a heat shrinkable sleeve, a heat shrinkable sleeve disposed to encompass said region of said structure, high magnetic permeability material disposed within said heat shrinkable sleeve, and means for heating said high permeability material such that it becomes essentially non-magnetic, said heat shrinkable sleeve having a shrink temperature below that at which said high permeability material becomes essentially non-magnetic.
Claim 20
Dependent Claim
87 words
A structure in which a region of the structure is to be encompassed within a heat shrinkable sleeve comprising a structure having a region to be encompassed within a heat shrinkable sleeve, a heat shrinkable sleeve disposed to encompass said region of said structure, high magnetic permeability material disposed within said heat shrinkable sleeve, and means for heating said high permeability material such that it becomes essentially non-magnetic, said heat shrinkable sleeve having a shrink temperature below that at which said high permeability material becomes essentially non-magnetic.
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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) | 1994-09-30 | 1995-04-01 | 1995-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-30 | 1999-04-01 | 1999-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-30 | 2003-04-01 | 2003-10-01 | $7700.00 | Window Closed / Lapsed |