US3573694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage transformer for television receivers
Assignee: RCA Licensing Corp
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Filing: 1969-10-28
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Granted: 1971-04-06
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Expires: 1989-10-28
Abstract
Abstract An improved high voltage transformer for television receivers and the like. The transformer coils are wound around novel slotted coil form means comprising hollow, electrically insulative means, the interior of which surrounds a portion of the transformer core means and the exterior of which is provided with a plurality of axially spaced circumferential slots. The slots for the high voltage windings are located at progressively increasing radial distances from the core means portion so as to provide a sufficiently great insulative barrier between the coil and the core means to prevent electrical arcing therebetween.
Inventors
- 👤 Eugene K Von Fange
- 👤 Julius Kemeny
- 👤 Sanjar Ghaem-Maghami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
H; H01; H01F; H01F30/00; H01F30/06; H01F30/10; H01F27/00; H01F27/28; H01F27/32; H01F27/324; H01F27/325; H01F38/00; H01F38/42; H01F5/00; H01F5/02; H01F2005/022
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
An improved high voltage transformer for television receivers and the like, comprising: a. core means; b. slotted coil form means comprising hollow electrically insulative means comprising a first and a second portion, said first portion surrounding a portion of said core means and having a substantially constant inside diameter, said second portion being disposed about said first portion and having a progressively increasing inside diameter, said second portion having a plurality of axially spaced circumferential slots formed thereon for receiving high voltage windings; and c. said circumferential slots being located at progressively increasing radial distances from said core means portion so as to provide a sufficIently great insulative barrier between the coil and the core means to prevent electric arcing therebetween.
Claim 2
Dependent Claim
121 words
An improved high voltage transformer for television receivers and the like, comprising: a. core means; b. slotted coil form means comprising hollow electrically insulative means comprising a first and a second portion, said first portion surrounding a portion of said core means and having a substantially constant inside diameter, said second portion being disposed about said first portion and having a progressively increasing inside diameter, said second portion having a plurality of axially spaced circumferential slots formed thereon for receiving high voltage windings; and c. said circumferential slots being located at progressively increasing radial distances from said core means portion so as to provide a sufficIently great insulative barrier between the coil and the core means to prevent electric arcing therebetween.
Claim 3
Dependent Claim
25 words
The invention of claim 1, wherein said high voltage winding slots are spaced apart from said core means portion by a gap of gaseous material.
Claim 4
Dependent Claim
11 words
The invention of claim 2, wherein said gaseous material comprises air.
Claim 5
Dependent Claim
74 words
The invention of claim 1, wherein: a. said slots are separated from one another by electrically insulative partitions; and b. said partitions are provided with slits canted at an angle with respect to the long central axis of said core means portion for permitting continuous coil winding from one slot to another while providing sufficiently great insulative barriers in said partitions to prevent electric arcing between winding sections in adjacent ones of said slots.
Claim 6
Dependent Claim
13 words
The invention of claim 4, wherein the edges of said partitions are rounded.
Claim 7
Dependent Claim
47 words
The invention of claim 3, further including primary windings disposed in ones of said circumferential slots located at a common, smallest radial distance from said core means, and secondary windings disposed in ones of said winding slots located at progressively increasing radial distances from said core means.
Claim 8
Dependent Claim
39 words
The invention of claim 3, wherein said first portion of said coil form means comprises an electrically insulative, generally tubular element, said first portion being joined to said second portion at the smallest diameter end of said second portion.
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |