US3843946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual bobbin assembly for coils
Assignee: ORIGINAL EQUIPMENT MOTORS Inc
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Filing: 1973-10-05
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Granted: 1974-10-22
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Expires: 1993-10-05
Abstract
Abstract A bobbin for a motor coil is constructed with a flange having a lead wire retainer extended therefrom. The retainer is in the form of a tab having spaced fingers which present pockets for capturing the lead wires. The retainer has an opening through which the lead wires are passed for strain relief. A complemental member with complemental fingers opposes the tab to clamp the wires.
Inventors
- 👤 D Anderson
- 👤 L Kottke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:02
CPC Classifications
H; H01; H01F; H01F5/00; H01F5/04; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/521; H02K3/525
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
170 words
In a dual bobbin assembly for a dual coil motor, a pair of bobbins arranged in co-axial relation, each bobbin having a core to be wound with a wire and a pair of end flanges attached to the core for retaining the winding, a flange of each bobbin being provided with a retainer for immobilizing the lead wires connected to the ends of the related coil winding, each retainer being the complement of the other and comprising: a radially projecting tab having one axially projecting end finger, and an odd number of additional axially projecting fingers arranged in spaced relation as a set to afford pockets for said lead wires, each of the additional fingers having a sloped wall with the fingers on the tabs of the two bobbin flanges in opposed interfitting relation so that the sloped walls of one set of additional fingers wedge on the sloped side walls of the other set of additional fingers, thereby to crimp and retain the lead wires disposed in the pockets.
Claim 2
Dependent Claim
170 words
In a dual bobbin assembly for a dual coil motor, a pair of bobbins arranged in co-axial relation, each bobbin having a core to be wound with a wire and a pair of end flanges attached to the core for retaining the winding, a flange of each bobbin being provided with a retainer for immobilizing the lead wires connected to the ends of the related coil winding, each retainer being the complement of the other and comprising: a radially projecting tab having one axially projecting end finger, and an odd number of additional axially projecting fingers arranged in spaced relation as a set to afford pockets for said lead wires, each of the additional fingers having a sloped wall with the fingers on the tabs of the two bobbin flanges in opposed interfitting relation so that the sloped walls of one set of additional fingers wedge on the sloped side walls of the other set of additional fingers, thereby to crimp and retain the lead wires disposed in the pockets.
Claim 3
Dependent Claim
67 words
A dual bobbin assembly according to claim 1, wherein the fingers are elongated parallel to a diameter of the bobbin core and where each tab has a slot formed therein through which the lead wires may be extended, a lead wire so extended being bent in one direction to lay in a pocket and being bent in another direction to be joined to the related coil end.
Claim 4
Dependent Claim
36 words
A dual bobbin assembly according to claim 1 wherein the pockets retaining the lead wires are of a dimension less than the diameter of the lead wires so that the lead wires may be press-fitted therein.
Claim 5
Dependent Claim
57 words
A dual bobbin assembly according to claim 1 wherein each bobbin is housed between cup-shaped frame members, one of the frame members having a slot for receiving the related tab, said frame slot having an entrance throat of greater width than the tab and having a neck of less width than the tab to crimp the tab.
Claim 6
Dependent Claim
98 words
In a spool-like bobbin for a motor coil, wherein the bobbin has a core on which the coil is wound and a pair of end flanges for retaining the coil winding, a lead wire retainer tab attached to the periphery of one flange of the bobbin, said tab having a base with at least three spaced apart flexible fingers projecting therefrom, the spaces between the fingers constituting pockets for capturing lead wires, selected of the fingers each having a sloped outer wall and said sloped outer walls being convergent toward one another proceeding outward of the tab base.
Claim 7
Dependent Claim
98 words
In a spool-like bobbin for a motor coil, wherein the bobbin has a core on which the coil is wound and a pair of end flanges for retaining the coil winding, a lead wire retainer tab attached to the periphery of one flange of the bobbin, said tab having a base with at least three spaced apart flexible fingers projecting therefrom, the spaces between the fingers constituting pockets for capturing lead wires, selected of the fingers each having a sloped outer wall and said sloped outer walls being convergent toward one another proceeding outward of the tab base.
Claim 8
Dependent Claim
34 words
A bobbin according to claim 5 wherein a slot is formed in the tab at the root of the pockets enabling lead wires to be passed therethrough and bent to lie in the pockets.
Claim 9
Dependent Claim
44 words
A bobbin according to claim 5 combined with a member opposing the retainer tab, said opposing member having fingers with walls shaped complemental to the sloped walls of the fingers on said retainer tab thereby to wedgingly hold the lead wires in the pockets.
Claim 10
Dependent Claim
36 words
A bobbin according to claim 6 combined with a member opposing the retainer to clamp the wires in the pockets, said oPposing member having fingers with walls shaped complemental to the walls of the retainer fingers.
Claim 11
Dependent Claim
120 words
In a spool-like bobbin for a motor coil, wherein the bobbin has a core on which the coil is wound and a pair of end flanges for retaining the coil winding, a lead wire retainer tab supported on a flange periphery, said tab having spaced, flexible fingers projecting axially therefrom and having a length parallel to a diameter of the bobbin, each finger having an inner wall and an outer wall, spaces between adjacent walls of the fingers affording at least two pockets for two lead wires, and selected walls of the fingers being sloped so that the tab fingers may be used as guides for an opposing member having complemental fingers thereby to encapsulate the wires on four sides.
Claim 12
Dependent Claim
120 words
In a spool-like bobbin for a motor coil, wherein the bobbin has a core on which the coil is wound and a pair of end flanges for retaining the coil winding, a lead wire retainer tab supported on a flange periphery, said tab having spaced, flexible fingers projecting axially therefrom and having a length parallel to a diameter of the bobbin, each finger having an inner wall and an outer wall, spaces between adjacent walls of the fingers affording at least two pockets for two lead wires, and selected walls of the fingers being sloped so that the tab fingers may be used as guides for an opposing member having complemental fingers thereby to encapsulate the wires on four sides.
Claim 13
Dependent Claim
27 words
A bobbin according to claim 9 wherein the tab has a slot through which may be extended the lead wires attached to the ends of the coil.
Claim 14
Dependent Claim
12 words
A bobbin according to claim 9 wherein the tab fingers are flexible.
Claim 15
Dependent Claim
12 words
A bobbin according to claim 10 wherein the tab fingers are flexible.
Claim 16
Dependent Claim
131 words
In a bobbin for a motor coil, the bobbin having a core to be wound with a wire and having a pair of special end flanges attached to the core for retaining the winding: a wire retainer tab attached to one of the flanges and lying substantially in the plane thereof, said tab having spaced fingers defining pockets for receiving lead wires each having end attached to a respective end of the coil winding, said pockets extending parallel to the plane of the tab, said tab having a slot therein communicating with the root of the pockets whereby the lead wires attached to the coil winding may be bent in one direction incidental to being extended through the slot and bent in another direction incidental to being placed in the pockets.
Claim 17
Dependent Claim
131 words
In a bobbin for a motor coil, the bobbin having a core to be wound with a wire and having a pair of special end flanges attached to the core for retaining the winding: a wire retainer tab attached to one of the flanges and lying substantially in the plane thereof, said tab having spaced fingers defining pockets for receiving lead wires each having end attached to a respective end of the coil winding, said pockets extending parallel to the plane of the tab, said tab having a slot therein communicating with the root of the pockets whereby the lead wires attached to the coil winding may be bent in one direction incidental to being extended through the slot and bent in another direction incidental to being placed in the pockets.
Claim 18
Dependent Claim
27 words
A bobbin according to claim 13 wherein selected fingers have sloped walls for guiding complemented fingers of an opposing member to capture the wires in four-sided pockets.
Claim 19
Dependent Claim
21 words
A bobbin according to claim 14 wherein the tab fingers are flexible thereby to crimp the wires in the four-sided pockets.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |