US3553409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit frame
Assignee: TEK WAVE Inc
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Filing: 1968-10-15
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Granted: 1971-01-05
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Expires: 1988-10-15
Abstract
Abstract A circuit frame comprised of a one-piece metallic frame member having launchers secured thereto in a precise manner and provided with top and bottom covers for sealing the interior opening. At least one of the covers is provided with a mounting surface for supporting a microstrip circuit which makes an electrical interface with the launchers secured to the frame to provide for a plurality of coaxial-to-microstrip transitions. The top and bottom covers may be either soldered or mechanically fastened to the frame member to protect the coaxial-to-microstrip electrical interface against dirt, dust, or other external influences. Precision alignment of the launcher assemblies provides a circuit frame apparatus having highly reliable operating characteristics.
Inventors
- 👤 Sanford S Lehrfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:47
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/02; H01P3/08; H01P3/081; H05; H05K; H05K5/00; H05K5/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
225 words
An assembly for accurately aligning and electrically coupling a plurality of microwave coaxial cables to microwave printed circuits of the microstrip-type being comprised of: a one-piece circuit frame having a substantially rectangular configuration, a central opening provided in said circuit frame; a plurality of launching assemblies adapted for connection to coaxial cables, each positioned within a suitable opening provided in the sides of said circuit frame so that at least two sides of said circuit frame each support a launching assembly; each of said launching assemblies being provided with coupling means projecting outwardly from said circuit frame for electrically coupling to a mating coaxial cable, and tabs each projecting inwardly beyond the interior periphery of the central opening of said circuit frame for electrical connection to a microcircuit; at least one cover provided to seal one of the surfaces of said circuit frame defining said central opening, said cover having a substantially flat surface suitable for supporting and mounting a microcircuit; means rigidly fastening said cover to said circuit frame; a microwave printed circuit of the microstrip-type having its bottom surface secured to said supporting surface of said cover; said cover supporting surface projecting into said central opening a distance sufficient to cause the exposed marginal surface of said microwave printed circuit to make firm engagement with the confronting surfaces of said launching assembly tabs.
Claim 2
Dependent Claim
225 words
An assembly for accurately aligning and electrically coupling a plurality of microwave coaxial cables to microwave printed circuits of the microstrip-type being comprised of: a one-piece circuit frame having a substantially rectangular configuration, a central opening provided in said circuit frame; a plurality of launching assemblies adapted for connection to coaxial cables, each positioned within a suitable opening provided in the sides of said circuit frame so that at least two sides of said circuit frame each support a launching assembly; each of said launching assemblies being provided with coupling means projecting outwardly from said circuit frame for electrically coupling to a mating coaxial cable, and tabs each projecting inwardly beyond the interior periphery of the central opening of said circuit frame for electrical connection to a microcircuit; at least one cover provided to seal one of the surfaces of said circuit frame defining said central opening, said cover having a substantially flat surface suitable for supporting and mounting a microcircuit; means rigidly fastening said cover to said circuit frame; a microwave printed circuit of the microstrip-type having its bottom surface secured to said supporting surface of said cover; said cover supporting surface projecting into said central opening a distance sufficient to cause the exposed marginal surface of said microwave printed circuit to make firm engagement with the confronting surfaces of said launching assembly tabs.
Claim 3
Dependent Claim
63 words
The assembly of claim 1 further comprising a second cover member for sealing the opposite surface of said circuit frame containing said central opening; means firmly fastening said second cover to said circuit frame; said first and second covers cooperating to seal the central opening of said circuit frame to keep the interior region thereof free from dirt, dust and other external influences.
Claim 4
Dependent Claim
148 words
The assembly of claim 2 wherein said second cover is provided with an exposed surface projecting inwardly into the central opening of said circuit frame wherein the distance between the exposed surface of said microwave printed circuit and said second cover is sufficient to permit normal operation of the printed circuit while being minimized to reduce the overall height of the assembly. 4. The assembly of claim 1 wherein said circuit frame is a one-piece member formed of a conductive material, said central opening having a substantially rectangular configuration; the inside corners of said central openiNg being removed to form arcuate-shaped slots which extend into the interior surface of the central opening to a depth greater than the removed inside corners; said microwave circuit having a substantially rectangular-shaped periphery; said arcuate-shaped slots being adapted to facilitate insertion and removal of said microwave printed circuit from said circuit frame.
Claim 5
Dependent Claim
73 words
The assembly of claim 2 wherein said first and second covers are provided with openings adjacent their periphery; said circuit frame provided with tapped apertures on opposite sides thereof for alignment with the openings in said first and second covers, respectively; threaded fastening means positioned through the openings in said first and second covers and threadedly engaging the tapped apertures of said circuit frame to releasably secure said covers to said circuit frame.
Claim 6
Dependent Claim
19 words
The assembly of claim 2 further comprising means hermetically sealing said first and second covers to said circuit frame.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |