Patent US5101183A successfully refreshed from Google Patents.
US5101183A
Expired / Lapsed
US
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Magnetostrictive clamp
Assignee: BAE Systems PLC
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Filing: 1989-09-11
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Granted: 1992-03-31
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Expires: 2009-09-11
Abstract
Abstract Apparatus and a method for restraining the movement of members due to magnetic fields in which a clamp made of magnetostrictive materials is used.
Inventors
- 👤 David G. Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:41
CPC Classifications
H; H10; H10N; H10N35/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
84 words
A clamping device which clamps at least two objects, comprising at least one magnetostrictive member having a portion for clamping said objects, dimensioned and constructed to expand or contract in the presence of a magnetic field to exert a force on said portion wherein said device comprises two spaced apart magnetostrictive members both of which contract lengthwise in the presence of a magnetic field, wherein said device comprises two opposed magnetostrictive members engaged with two opposed non-magnetostrictive members to form a generally rectangular clamp.
Claim 2
Dependent Claim
84 words
A clamping device which clamps at least two objects, comprising at least one magnetostrictive member having a portion for clamping said objects, dimensioned and constructed to expand or contract in the presence of a magnetic field to exert a force on said portion wherein said device comprises two spaced apart magnetostrictive members both of which contract lengthwise in the presence of a magnetic field, wherein said device comprises two opposed magnetostrictive members engaged with two opposed non-magnetostrictive members to form a generally rectangular clamp.
Claim 3
Dependent Claim
37 words
A clamping device according to claim 1, wherein abutting portions of the magnetostrictive members and non-magnetostrictive members include tapered portions which are assembled so as to cause a wedging action in the presence of a magnetic field.
Claim 4
Dependent Claim
71 words
A clamping device which clamps at least two objects, comprising at least one magnetostrictive member having a portion for clamping said objects, dimensioned and constructed to expand or contract in the presence of a magnetic field to exert a force on said portion, wherein said device comprises two generally U-shaped magnetostrictive members which are connected together at their free ends and adapted to thickness in the presence of a magnetic field.
Claim 5
Dependent Claim
71 words
A clamping device which clamps at least two objects, comprising at least one magnetostrictive member having a portion for clamping said objects, dimensioned and constructed to expand or contract in the presence of a magnetic field to exert a force on said portion, wherein said device comprises two generally U-shaped magnetostrictive members which are connected together at their free ends and adapted to thickness in the presence of a magnetic field.
Claim 6
Independent Claim
60 words
A method of restricting relative movement of electrical conductors due to magnetic forces comprising the steps of providing a magnetostrictive material of a type which deforms under the influence of a magnetic field; and forming a clamp between said electrical conductors using said material, such that it deforms under said magnetic field in a manner which opposes said relative movement.
Claim 7
Independent Claim
60 words
A method of restricting relative movement of electrical conductors due to magnetic forces comprising the steps of providing a magnetostrictive material of a type which deforms under the influence of a magnetic field; and forming a clamp between said electrical conductors using said material, such that it deforms under said magnetic field in a manner which opposes said relative movement.
Claim 8
Dependent Claim
27 words
A method according to claim 4 comprising the further step of placing a pair of magnetostrictive components on opposite sides of a pair of parallel electrical conductors.
Claim 9
Dependent Claim
25 words
A method as in claim 4 comprising the further step of energizing said electrical conductors to cause a magnetic force and deform said magnetostrictive material.
Claim 10
Dependent Claim
67 words
A clamping device for clamping between at least two objects which, when energized cause a magnetic field which causes a first force between said objects, comprising: a clamping structure, including means for coupling to said at least two objects, formed of a magnetostrictive material of a type which causes a second force, opposite to said first force, between said objects in the presence of said magnetic field.
Claim 11
Dependent Claim
67 words
A clamping device for clamping between at least two objects which, when energized cause a magnetic field which causes a first force between said objects, comprising: a clamping structure, including means for coupling to said at least two objects, formed of a magnetostrictive material of a type which causes a second force, opposite to said first force, between said objects in the presence of said magnetic field.
Claim 12
Dependent Claim
65 words
A clamping device, comprising: at least two objects which, when energized cause a magnetic field which causes a first force between said objects; and a clamping structure, including means for coupling to said at least two objects, formed of a magnetostrictive material of a type which causes a second force, opposite to said first force, between said objects in the presence of said magnetic field.
Claim 13
Dependent Claim
65 words
A clamping device, comprising: at least two objects which, when energized cause a magnetic field which causes a first force between said objects; and a clamping structure, including means for coupling to said at least two objects, formed of a magnetostrictive material of a type which causes a second force, opposite to said first force, between said objects in the presence of said magnetic field.
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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) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |