US3679829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic chassis assembly for a television receiver
Assignee: Individual
•
Filing: 1970-11-27
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Granted: 1972-07-25
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Expires: 1990-11-27
Abstract
Abstract A television receiver including a cabinet housing with a front viewing face having an electronic chassis assembly movably mounted therein on which to mount instrumentalities including electronic modules in the form of printed circuit boards. The chassis assembly includes a plurality of enclosing wall portions defining an accessible internal cavity, one wall portion being pivotally mounted to provide additional access to the cavity, and a plurality of interconnected internal plates providing mounting surfaces and electrical shielding for the instrumentalities Grounding terminal means are separately mounted or integrally formed on the mounting surfaces for connecting and grounding the electronic modules to the chassis assembly. High radiation type electronic modules include a frame assembly of metal stampings having a plurality of grounding points for electrical hot spots and providing shielding between selected portions of the modules.
Inventors
- 👤 Richard J Hofmeister
- 👤 Edward A Salners
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:24
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H04N5/655
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
304 words
In a television receiver, a cabinet having a front viewing face defining first and second openings therein, a picture tube mounted within said first opening for viewing a projected image therethrough, a plurality of instrumentalities including electronic modules in the form of printed circuit boards with electronic components mounted thereon for said receiver, an electronic chassis assembly movably mounted in said second opening and movable between first and second operable positions wherein said chassis assembly is internal to said cabinet in said first position and is substantially external to said cabinet in said second position, said electronic chassis assembly including in combination: an outer conductive frame structure having four enclosing wall portions defining therebetween an internal cavity and two opposite side openings providing access to said internal cavity, said enclosing wall portions having internal surfaces of which portions thereof are substantially flat to provide mounting surfaces for said instrumentalities, three of said enclosing wall portions being integrally connected and the remaining one of said enclosing wall portions being pivotally mounted to adjacent wall portions for providing access to instrumentalities mounted thereon and to said internal cavity, said chassis assembly being mounted with the remaining one of said enclosing wall portions positioned parallel and contiguous with the front viewing face and having at least some of the manual controls operatively attached thereto, a plurality of internal, conductive plates having opposite surfaces of which portions thereof are substantially flat to provide additional mounting surfaces for said instrumentalities, said internal plates being selectively connected together and connected to adjacent ones of said enclosing wall portions to impart rigidity to said frame structure and arranged in a preselected matrix within said internal cavity to provide electrical shielding between said instrumentalities mounted on said opposite surfaces, and means for mounting and grounding said electronic modules to said mounting surfaces.
Claim 2
Dependent Claim
304 words
In a television receiver, a cabinet having a front viewing face defining first and second openings therein, a picture tube mounted within said first opening for viewing a projected image therethrough, a plurality of instrumentalities including electronic modules in the form of printed circuit boards with electronic components mounted thereon for said receiver, an electronic chassis assembly movably mounted in said second opening and movable between first and second operable positions wherein said chassis assembly is internal to said cabinet in said first position and is substantially external to said cabinet in said second position, said electronic chassis assembly including in combination: an outer conductive frame structure having four enclosing wall portions defining therebetween an internal cavity and two opposite side openings providing access to said internal cavity, said enclosing wall portions having internal surfaces of which portions thereof are substantially flat to provide mounting surfaces for said instrumentalities, three of said enclosing wall portions being integrally connected and the remaining one of said enclosing wall portions being pivotally mounted to adjacent wall portions for providing access to instrumentalities mounted thereon and to said internal cavity, said chassis assembly being mounted with the remaining one of said enclosing wall portions positioned parallel and contiguous with the front viewing face and having at least some of the manual controls operatively attached thereto, a plurality of internal, conductive plates having opposite surfaces of which portions thereof are substantially flat to provide additional mounting surfaces for said instrumentalities, said internal plates being selectively connected together and connected to adjacent ones of said enclosing wall portions to impart rigidity to said frame structure and arranged in a preselected matrix within said internal cavity to provide electrical shielding between said instrumentalities mounted on said opposite surfaces, and means for mounting and grounding said electronic modules to said mounting surfaces.
Claim 3
Dependent Claim
69 words
An electronic chassis assembly as claimed in claim 1 wherein said enclosing wall portions comprise top, bottom, front and rear side walls, said top, rear and bottom side walls are integrally formed from an elongated relatively flat metal plate, said front wall is an elongated relatively flat metal plate and is pivotally mounted along a longitudinal edge portion thereof to adjacent edge portions of said top and bottom walls.
Claim 4
Dependent Claim
93 words
An electronic chassis assembly as claimed in claim 1 wherein said internal plates are arranged to define a plurality of sectional compartments within said internal cavity to comprise said preselected matrix, each compartment has mounting surfaces therein and provides electrical shielding from adjacEnt compartments, one of said compartments includes tuner type instrumentalities having adjustment means positioned internal to said one compartment and is partially defined by said one wall portion so as to provide access to the internal adjustment means of said tuner with said one wall portion pivoted to its open position.
Claim 5
Dependent Claim
40 words
An electronic chassis assembly as claimed in claim 3 wherein said one compartment is additionally accessible from said two opposite side openings, and each of the other compartments is accessible from at least one of said two opposite side openings.
Claim 6
Dependent Claim
106 words
An electronic chassis assembly as claimed in claim 1 wherein said means for mounting and grounding said electronic modules include a plurality of sets of first conductive connector means, said sets are selectively provided on said mounting surfaces and are adapted to receive said electronic modules, respectively, with a plug-in type connection, and each of said first connector means includes at least one finger portion for engaging said printed circuit board to mount said module to said mounting surface, and further includes at least one shoulder portion for supportingly and conductively engaging said board to provide a grounding connection from said board to said mounting surface.
Claim 7
Dependent Claim
42 words
An electronic chassis assembly as claimed in claim 5 wherein each set of said first conductive connector means additionally includes a means of biasing said printed circuit board into conductive engagement with said shoulder portions of said set of first connector means.
Claim 8
Dependent Claim
166 words
An electronic chassis assembly as claimed in claim 1 wherein at least one of said electrode modules includes high radiation and critical grounding electronic components thereon, an outer conductive frame assembly has a plurality of enclosing wall portions substantially surrounding the periphery of the printed circuit board for said one electronic module and are attached thereto through a plurality of first protruding tabs to comprise attachment points for selectively providing a grounding node at each of said attachment points and to impart rigidity to said board whereby said board is prevented from warping, a plurality of internal conductive plates are selectively connected together and connected to adjacent ones of said enclosing wall portions to define a plurality of sectional compartments providing electrical shielding from adjacent compartments, and said internal plates are attached to said board through a plurality of second protruding tabs to comprise attachment points for selectively providing a grounding node at each of said attachment points and to further impart rigidity to said board.
Claim 9
Dependent Claim
89 words
An electronic chassis assembly as claimed in claim 7 wherein at least some of said compartments containing said high radiation and critical grounding electronic components comprise critical compartments, and a cover portion is provided over said critical compartments substantially enclosing the same for providing electrical shielding therefor and is in conductive engagement with selected ones of said wall portions and said internal plates to provide continuity of grounding connection between said wall portions and said internal plates whereby electrical grounding and shielding for said critical compartments is greatly enhanced.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |