Patent JPS6350641A successfully refreshed from Google Patents.
Patent US5013673A successfully refreshed from Google Patents.
US3663914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bobbin wound coil assembly and electrical terminals therefor
Assignee: AT&T Inc
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Filing: 1971-06-14
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Granted: 1972-05-16
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Expires: 1991-06-14
Abstract
Abstract An electrical bobbin wound coil assembly has electrical terminals secured within recesses formed in at least one flange of the bobbin, with the terminals being adapted for making welded connections thereto of either insulated or stripped terminating ends of coils and associated external leads. Each terminal is readily formed out of strip stock, bent at a sharp angle into an essentially V-shaped configuration, and has a stop-defining protruberance and a stop-defining bend formed at different points along at least one leg of the terminal. These stops, in conjunction with the inherent spring-bias clamping action of the legs of the terminal, temporarily position and hold the coil and lead ends at different desired elevations prior to their being permanently secured, preferably by welding, to the terminal. An L-shaped slot, associated with each terminal, extends outwardly from and is integral with a flange of the bobbin. The slot provides a means to firmly anchor an external lead to the bobbin in a manner which protects the lead-terminal connection from deleterious stresses which could otherwise be encountered during assembly, handling or use.
Inventors
- 👤 Homer P Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:42
CPC Classifications
H; H01; H01F; H01F5/00; H01F5/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
161 words
In an electrical coil assembly including a bobbin formed of insulating material, having at least one end flange and a core upon which at least one coil of wire is wound: at least one electrical terminal secured to the flange, said terminal being formed into a substantially V-shaped configuration with at least one inwardly extending protruberance formed along an intermediate region of one leg thereof so as to provide a stop to properly position a terminating end of the bobbin wound coil at a desired elevation between and in frictional engagement with the mutually opposed inner surfaces of the legs of the terminal, and an upper terminating end region of at least one leg of the terminal being bent outwardly at an angle and then bent upwardly so as to provide a space between the two legs of the terminal of sufficient width to accommodate, and of predetermined depth to provide a stop for, a terminating end of an external lead.
Claim 2
Dependent Claim
161 words
In an electrical coil assembly including a bobbin formed of insulating material, having at least one end flange and a core upon which at least one coil of wire is wound: at least one electrical terminal secured to the flange, said terminal being formed into a substantially V-shaped configuration with at least one inwardly extending protruberance formed along an intermediate region of one leg thereof so as to provide a stop to properly position a terminating end of the bobbin wound coil at a desired elevation between and in frictional engagement with the mutually opposed inner surfaces of the legs of the terminal, and an upper terminating end region of at least one leg of the terminal being bent outwardly at an angle and then bent upwardly so as to provide a space between the two legs of the terminal of sufficient width to accommodate, and of predetermined depth to provide a stop for, a terminating end of an external lead.
Claim 3
Dependent Claim
60 words
In an electrical coil assembly in accordance with claim 1, said terminal further including at least one outwardly extending protruberance formed in at least one leg thereof near the vertex end of the terminal, said last-mentioned protruberance being adapted to spring-bias against and frictionally engage a side wall partially defining a terminal receiving recess of a bobbin when inserted therewithin.
Claim 4
Dependent Claim
193 words
An electrical coil assembly comprising: a pre-formed bobbin of insulating material having at least one end flange and a core; at least one coil of wire wound Upon the core of said bobbin, and at least two electrical terminals secured to at least the one flange of said bobbin, each terminal including means to effect an electrical connection with at least a terminating end of said coil and an external lead, each of said terminals being formed into a substantially V-shaped configuration with at least one inwardly extending protruberance formed along the intermediate region of one leg thereof so as to provide a stop to properly position a given terminating end of said coil at a desired elevation between and in frictional engagement with the mutually opposed inner surfaces of the legs of the terminal, and an upper terminating end region of at least one leg of each terminal being bent outwardly at an angle and then bent upwardly so as to provide a space between the two legs of the terminal of sufficient width to accommodate, and of predetermined depth to provide a stop for, a terminating end of an external lead.
Claim 5
Dependent Claim
193 words
An electrical coil assembly comprising: a pre-formed bobbin of insulating material having at least one end flange and a core; at least one coil of wire wound Upon the core of said bobbin, and at least two electrical terminals secured to at least the one flange of said bobbin, each terminal including means to effect an electrical connection with at least a terminating end of said coil and an external lead, each of said terminals being formed into a substantially V-shaped configuration with at least one inwardly extending protruberance formed along the intermediate region of one leg thereof so as to provide a stop to properly position a given terminating end of said coil at a desired elevation between and in frictional engagement with the mutually opposed inner surfaces of the legs of the terminal, and an upper terminating end region of at least one leg of each terminal being bent outwardly at an angle and then bent upwardly so as to provide a space between the two legs of the terminal of sufficient width to accommodate, and of predetermined depth to provide a stop for, a terminating end of an external lead.
Claim 6
Dependent Claim
123 words
An electrical coil assembly in accordance with claim 3 wherein a separate pre-formed recess for receiving each terminal is formed in the periphery of at least said one flange, each of said recesses being dimensioned so as to spring-bias the legs of the associated terminal toward each other when said terminal is force-fit therewithin, and wherein said terminal further includes at least one outwardly extending locking protruberance formed in at least one leg thereof near the vertex end of the terminal, said locking protruberance being oriented and dimensioned so as to have sufficient resiliency to spring-bias against a side wall partially defining the receiving one of said recesses in the flange of said bobbin and, thereby, reliably secure the terminal to the bobbin.
Claim 7
Dependent Claim
51 words
An electrical coil assembly in accordance with claim 4 wherein the outer wall of at least said one flange is formed with at least one separate integral L-shaped anchoring detail associated with each terminal, said detail being dimensioned to provide a slot within which an external lead may be frictionally anchored.
Claim 8
Dependent Claim
119 words
An electrical coil assembly in accordance with claim 3 wherein the variable space defined between the legs of each terminal and the particular location and dimensions of the stop-defining protruberance and of the stop-defining upper bend region in at least said one leg of the terminal are chosen so as to selectively accommodate non-conductive coated, un-stripped terminating coil and external lead ends and to temporarily hold them in desired positions, by the inherent spring-bias clamping action of said legs, in preparation for welding electrodes to be brought into contact with an to effect permanent welded terminal connections, with the coil and lead coatings in the areas of the welds being volatilized by the heat generated during the welding operation.
Claim 9
Dependent Claim
225 words
An electrical terminal capable of being formed out of strip stock and being particularly adapted both for force-fit insertion within a recess pre-formed within a flange of an electrical coil bobbin, and for making welded connections thereto of at least one terminating end of both a bobbin wound coil and an external lead, said terminal comprising: two integral leg portions bent at a sharp angle into an essentially V-shaped configuration, at least one of said legs being formed with at least one outwardly extending locking protruberance near the vertex end of the terminal to facilitate permanent, force-fit securement of that end within a recess of a bobbin, at least one of said legs also being formed with an inwardly extending protruberance along an intermediate region thereof so as to act as a stop to properly position at least one terminating end of a bobbin wound coil at a desired elevation between and in frictional engagement with the closely spaced legs of the terminal, said terminal further including an upper terminating end region wherein at least one of said legs is bent outwardly at an angle and then bent upwardly so as to provide a space between the two legs of the terminal of sufficient width to accommodate, and of predetermined depth to provide a stop for, at least one external lead at a desired elevation.
Claim 10
Dependent Claim
225 words
An electrical terminal capable of being formed out of strip stock and being particularly adapted both for force-fit insertion within a recess pre-formed within a flange of an electrical coil bobbin, and for making welded connections thereto of at least one terminating end of both a bobbin wound coil and an external lead, said terminal comprising: two integral leg portions bent at a sharp angle into an essentially V-shaped configuration, at least one of said legs being formed with at least one outwardly extending locking protruberance near the vertex end of the terminal to facilitate permanent, force-fit securement of that end within a recess of a bobbin, at least one of said legs also being formed with an inwardly extending protruberance along an intermediate region thereof so as to act as a stop to properly position at least one terminating end of a bobbin wound coil at a desired elevation between and in frictional engagement with the closely spaced legs of the terminal, said terminal further including an upper terminating end region wherein at least one of said legs is bent outwardly at an angle and then bent upwardly so as to provide a space between the two legs of the terminal of sufficient width to accommodate, and of predetermined depth to provide a stop for, at least one external lead at a desired elevation.
Claim 11
Dependent Claim
78 words
An electrical terminal in accordance with claim 7 wherein at least one leg of said terminal is provided with at least one protruberance in the form of a barb near the vertex end thereof, said protruberance extending not only outwardly but upwardly toward the free end of the common leg and being dimensioned to have sufficient resiliency so as to spring-bias against and effectively lock the inserted portion of the terminal within a pre-formed recess of a bobbin.
Claim 12
Dependent Claim
116 words
A terminal in accordance with claim 8 wherein the variable space defined between the legs of said terminal and the particular location and dimensions of the stop-defining protruberance and of the stop-defining upper bend region in at least said one leg of the terminal are chosen so as to selectively accommodate insulated, un-stripped terminating coil and external lead ends and to temporarily hold them in desired positions, by the inherent spring-bias clamping action of said legs, in preparation for welding electrodes to be brought into contact with and to effect permanent welded terminal connections, with any coil and lead insulation in the areas of the welds being volatilized by the heat generated during the welding operation.
References Cited (Backward Citations)
US2734177A
Cited
US3117294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |