US3601735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embedment-type coil assembly
Assignee: Arris Technology Inc
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Filing: 1970-07-15
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Granted: 1971-08-24
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Expires: 1990-07-15
Abstract
Abstract An embedment-type transformer coil assembly is disclosed particularly suited for a transformer application, together with a novel method and coil form for embedding the primary and secondary transformer windings within a unitary embedment material. An inner elongated tubular member is connected by means of a top panel skeletal structure to an outer shorter tubular member defining a minor molding space therebetween. The top panel skeletal structure defines spaces through which embedment material can be conducted, thereby to embed leads from the windings which extend into the minor molding space. The top panel may comprise a plurality of terminal lugs to which the leads can be connected. In the embedding process, the form is placed in an upstanding position in an open mold cavity which is filled to its upper level with embedment material. Embedment material can then be added to the minor molding space between the tubular members, thereby to embed the leads and form a unitary embedment structure, thus providing full protection for the primary and secondary transformer windings and their associated leads.
Inventors
- 👤 Lucian Bercovici
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:20
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/02; H01F27/022; H01F38/00; H01F38/42; H01F41/00; H01F41/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
52 words
An embedment-type coil form comprising an elongated tubular member, a shorter outer tubular member in surrounding relation thereto and radially spaced from said elongated tubular member, and a top panel skeletal structure connecting the tubular members at their tops, the skeletal connecting structure being formed with open spaces between the tubular members.
Claim 2
Dependent Claim
52 words
An embedment-type coil form comprising an elongated tubular member, a shorter outer tubular member in surrounding relation thereto and radially spaced from said elongated tubular member, and a top panel skeletal structure connecting the tubular members at their tops, the skeletal connecting structure being formed with open spaces between the tubular members.
Claim 3
Dependent Claim
23 words
In the coil form of claim 1, an integrally formed panel board at its top provided with a plurality of spaced terminal lugs.
Claim 4
Dependent Claim
26 words
In combination with the coil form of claim 2, primary and secondary transformer windings on the elongated tubular member and spaced from said outer tubular member.
Claim 5
Dependent Claim
39 words
The combination of claim 3, comprising a unitary embedment material completely enveloping the exterior of said primary and secondary windings inclusive of filling of their spacing from the outer tubular form and uniting the same to said coil form.
Claim 6
Dependent Claim
26 words
In combination with the coil form of claim 1, primary and secondary transformer windings on the elongated tubular member and spaced from said outer tubular member.
Claim 7
Dependent Claim
39 words
The combination of claim 5, comprising a unitary embedment material completely enveloping the exterior of said primary and secondary windings inclusive of filling of their spacing from the outer tubular form and uniting the same to said coil form.
Claim 8
Dependent Claim
21 words
The combination of claim 3, wherein said secondary transformer winding extends radially outwardly past said outer tubular member of the form.
Claim 9
Dependent Claim
39 words
The combination of claim 7, comprising a unitary embedment material completely enveloping the exterior of said primary and secondary windings inclusive of filling of their spacing from the outer tubular form and uniting the same of said coil form.
Claim 10
Dependent Claim
28 words
The combination of claim 3, said windings having leads passing through said spacing between said inner and outer tubular members to the terminal lugs of said panel board.
Claim 11
Dependent Claim
28 words
The combination of claim 4, said windings having leads passing through said spacing between said inner and outer tubular members to the terminal lugs of said panel board.
Claim 12
Dependent Claim
20 words
In the combination of claim 10, embedment material filling said spacing thereby to embed said leads within said embedment material.
Claim 13
Dependent Claim
20 words
In the combination of claim 10, embedment material filling said spacing thereby to embed said leads within said embedment material.
Claim 14
Independent Claim
147 words
The method of completely embedding the primary and secondary coils of a transformer coil of an embedment-type transformer coil structure, which comprises taking a coil form comprising an elongated tubular member, a shorter outer tubular member in surrounding relation thereto and radially spaced from the elongated tubular member, and a top skeletal structure connecting the tubular members at their tops, the skeletal connecting structure being formed with open spaces between the tubular members, placing primary and secondary transformer windings on the elongated tubular member, both transformers windings being spaced from the outer tubular member of the coil form, then placing the same in an open mold cavity in an upstanding position, conducting plastic material into the mold cavity substantially up to the outer tubular member, and conducting plastic material into the spacing between the tubular members, thereby completely embedding the primary and secondary coils of the transformer.
Claim 15
Independent Claim
147 words
The method of completely embedding the primary and secondary coils of a transformer coil of an embedment-type transformer coil structure, which comprises taking a coil form comprising an elongated tubular member, a shorter outer tubular member in surrounding relation thereto and radially spaced from the elongated tubular member, and a top skeletal structure connecting the tubular members at their tops, the skeletal connecting structure being formed with open spaces between the tubular members, placing primary and secondary transformer windings on the elongated tubular member, both transformers windings being spaced from the outer tubular member of the coil form, then placing the same in an open mold cavity in an upstanding position, conducting plastic material into the mold cavity substantially up to the outer tubular member, and conducting plastic material into the spacing between the tubular members, thereby completely embedding the primary and secondary coils of the transformer.
Claim 16
Dependent Claim
31 words
In the method of claim 13, the further step of causing the protective material in the mold cavity to at least partially harden prior to conducting protective material into said spacing.
Claim 17
Independent Claim
127 words
The method of completely embedding a coil of a coil structure, which comprises taking a coil form comprising an elongated tubular member, a shorter outer tubular member in surrounding relation thereto and radially spaced from the elongated tubular member, and a top skeletal structure connecting the tubular members at their tops, the skeletal connecting structure being formed with open spaces between the tubuLar member, placing a winding on the elongated tubular member, said winding being spaced from the outer tubular member of the coil form, placing the same in an open mold cavity in an upstanding position, conducting plastic material into the mold cavity substantially up to the outer tubular member, and conducting plastic material into the spacing between the tubular members, thereby completely embedding said coil.
Claim 18
Independent Claim
127 words
The method of completely embedding a coil of a coil structure, which comprises taking a coil form comprising an elongated tubular member, a shorter outer tubular member in surrounding relation thereto and radially spaced from the elongated tubular member, and a top skeletal structure connecting the tubular members at their tops, the skeletal connecting structure being formed with open spaces between the tubuLar member, placing a winding on the elongated tubular member, said winding being spaced from the outer tubular member of the coil form, placing the same in an open mold cavity in an upstanding position, conducting plastic material into the mold cavity substantially up to the outer tubular member, and conducting plastic material into the spacing between the tubular members, thereby completely embedding said coil.
Claim 19
Dependent Claim
31 words
In the method of claim 15, the further step of causing the protective material in the mold cavity to at least partially harden prior to conducting protective material into said spacing.
Claim 20
Dependent Claim
63 words
The method of embedding a winding in protective material using the coil form of claim 5, which comprises placing said coil form and winding in an open mold cavity in an upstanding position, conducting protective material into said mold cavity substantially to the cavity upper level, and conducting protective material into the spacing between the tubular members, thereby completely embedding said primary winding.
Claim 21
Dependent Claim
31 words
In the method of claim 17, the further step of causing the protective material in the mold cavity to at least partially harden prior to conducting protective material into said spacing.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |