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US4713633A
Expired / Lapsed
US
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Cover attaching arrangement for casing of dielectric coaxial resonators
Assignee: Murata Manufacturing Co Ltd
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Filing: 1986-12-19
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Granted: 1987-12-15
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Expires: 2006-12-19
Abstract
Abstract An arrangement for attaching a cover member onto a casing of dielectric coaxial resonators and the like, which is capable of attaching the cover member onto the casing containing the resonators in it for fixing in a so-called single operation, while establishing a positive electrical conduction between outer conductors of the resonators and the casing.
Inventors
- 👤 Koji Saito
- 👤 Hiroshi Okawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:56
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/205; H01P1/2053
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
A cover attaching arrangement for a casing of dielectric coaxial resonators, which comprises a casing having side walls extending upwardly approximately at right angles with respect to its bottom wall so as to accommodate the dielectric coaxial resonators therein, a cover member having side walls extending downwardly approximately at right angles with respect to its top wall and adapted to be fitted over said casing, said side walls of either one of said casing or said cover member being formed with engaging pieces, with the other thereof being formed with corresponding engaging openings so as to retain said casing unreleasable from said cover member upon fitting of said engaging pieces with said engaging openings, and a spring means provided between the dielectric coaxial resonator and said cover member or between said dielectric coaxial resonator and said casing so as to urge said cover member in a direction for engagement between said engaging pieces and said engaging openings.
Claim 2
Dependent Claim
157 words
A cover attaching arrangement for a casing of dielectric coaxial resonators, which comprises a casing having side walls extending upwardly approximately at right angles with respect to its bottom wall so as to accommodate the dielectric coaxial resonators therein, a cover member having side walls extending downwardly approximately at right angles with respect to its top wall and adapted to be fitted over said casing, said side walls of either one of said casing or said cover member being formed with engaging pieces, with the other thereof being formed with corresponding engaging openings so as to retain said casing unreleasable from said cover member upon fitting of said engaging pieces with said engaging openings, and a spring means provided between the dielectric coaxial resonator and said cover member or between said dielectric coaxial resonator and said casing so as to urge said cover member in a direction for engagement between said engaging pieces and said engaging openings.
Claim 3
Dependent Claim
38 words
A cover attaching arrangement as claimed in claim 1, wherein said spring means is adapted to establish an electrical conduction of the outer conductors of said dielectric coaxial resonators with respect to said casing and said cover member.
Claim 4
Dependent Claim
66 words
A cover attaching arrangement as claimed in claim 1, wherein said spring means is a plate spring including a common support portion, a plurality of spring pieces formed to extend outwardly from opposite sides of said common support portion at predetermined intervals, and contact portions formed on said common support portion for positive contact between said dielectric coaxial resonator and said cover member or said casing.
Claim 5
Dependent Claim
17 words
A cover attaching arrangement as claimed in claim 3, wherein said contact portions are hemispherical contact projections.
Claim 6
Dependent Claim
27 words
A cover attaching arrangement as claimed in claim 3, wherein said contact portions are a plurality of small holes formed by punching in said common support portion.
Claim 7
Dependent Claim
44 words
A cover attaching arrangement as claimed in claim 3, wherein said common support portion is folded at opposite end portions thereof in such a manner as to achieve proper positioning of said plate spring with respect to the dielectric coaxial resonator within said casing.
References Cited (Backward Citations)
US4494095A
Cited
US4567454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |