US3688231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable mounting assembly for a set of deflection coils
Assignee: US Philips Corp
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Filing: 1971-02-08
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Granted: 1972-08-29
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Expires: 1991-02-08
Abstract
Abstract A set of deflection coils having a screw bolts and lock nuts permanently connected to the set of coils for mounting in a supporting cage by means of a device enabling both an axial adjustment of the set of coils and an angle adjustment thereof by rotation about its axis.
Inventors
- 👤 Martin Clemens Van Der Heijde
- 👤 Adriaan Jacob Groothoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:44
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J29/823; H01J29/826
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
A device for mounting at least one deflection coil about a longitudinal cathode ray tube, said device comprising a coil form disposed about said tube adapted to receive said coil, a cage disposed about said form, adjustment members mounted on said form, means mounted on said cage for defining longitudinal guides, a first plurality of blocks disposed in said guides respectively, each having a rotational guide surface for receiving said members respectively, means for preventing rotational movement of said form upon longitudinal movement thereof comprising opposing knurled surfaces on said members and on said blocks, and means for urging said members and blocks knurled surfaces into respective engagement.
Claim 2
Independent Claim
108 words
A device for mounting at least one deflection coil about a longitudinal cathode ray tube, said device comprising a coil form disposed about said tube adapted to receive said coil, a cage disposed about said form, adjustment members mounted on said form, means mounted on said cage for defining longitudinal guides, a first plurality of blocks disposed in said guides respectively, each having a rotational guide surface for receiving said members respectively, means for preventing rotational movement of said form upon longitudinal movement thereof comprising opposing knurled surfaces on said members and on said blocks, and means for urging said members and blocks knurled surfaces into respective engagement.
Claim 3
Dependent Claim
48 words
A device as claimed in claim 1 wherein said adjustment members comprise a screw bolts radially projecting from said form through said cage, lock nuts disposed on said bolts, respectively, and a second plurality of blocks each having one of said knurled surfaces disposed on said blocks respectively.
Claim 4
Dependent Claim
24 words
A device as claimed in claim 1 wherein said rotational guide surfaces comprise said first plurality of blocks each having a circumferentially elongated slot.
Claim 5
Dependent Claim
31 words
A device as claimed in claim 2 wherein said urging means comprise a plurality of springs disposed on said respective bolts between said nuts and said second plurality of blocks respectively.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |