US3820044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cascade 50 ohm attenuator system having removably mounted attenuator devices
Assignee: Tektronix Inc
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Filing: 1973-03-05
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Granted: 1974-06-25
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Expires: 1993-03-05
Abstract
Abstract In systems associated with high-frequency 50 ohm attenuators, means and methods are provided using hybird chips having circuitry thereon for electrical engagement on etched circuit boards thereby keeping electromagnetic fields between the etched circuit boards and the hybrid chips. Spring clips for maintaining the hybrid chips in position on the etched circuit boards and for maintaining electrical connection between circuitry on the hybrid chips and transmission mediums on the etched circuit board are provided.
Inventors
- 👤 K Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:00
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/24; H01; H01P; H01P1/00; H01P1/22; H01P1/227; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0237; H05K3/00; H05K3/30; H05K3/32; H05K3/325
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
114 words
An attenuator apparatus comprising: attenuator device means containing attenuator circuits of selectable attenuation values; an electrical mounting member having transmission mediums divided into portions electrically insulated from each other on an insulator member; contact means for connecting said attenuator device means on the mounting member for providing electrical contact between certain of said portions of said transmission mediums; clip-on mounting means to removably secure said attenuator device means on the mounting member for mechanical connection between said mounting member and said attenuator device means; and switch means for selectively electrically connecting said portions on said electrical mounting member to connect said attenuator device means in cascade between an input terminal and an output terminal.
Claim 2
Dependent Claim
114 words
An attenuator apparatus comprising: attenuator device means containing attenuator circuits of selectable attenuation values; an electrical mounting member having transmission mediums divided into portions electrically insulated from each other on an insulator member; contact means for connecting said attenuator device means on the mounting member for providing electrical contact between certain of said portions of said transmission mediums; clip-on mounting means to removably secure said attenuator device means on the mounting member for mechanical connection between said mounting member and said attenuator device means; and switch means for selectively electrically connecting said portions on said electrical mounting member to connect said attenuator device means in cascade between an input terminal and an output terminal.
Claim 3
Dependent Claim
22 words
Attenuator apparatus in accordance with claim 1 in which said contact means is included as a portion of said attenuator device means.
Claim 4
Dependent Claim
28 words
Attenuator apparatus in accordance with claim 2 in which said contact means is a plurality of protuberancies for electrically connecting said attenuator device means on said mounting member.
Claim 5
Dependent Claim
33 words
Attenuator apparatus in accordance with claim 3 in which said attenuator device means is mounted on a base material defining insulation means having deposited thereon circuitry for selectable attenuation, and said contact means.
Claim 6
Dependent Claim
16 words
Attenuator apparatus in accordance with claim 4 wherein said attenuator device means forms a hybrid chip.
Claim 7
Dependent Claim
34 words
Attenuator apparatus in accordance with claim 5 in which said hybrid chip in conTact with said transmission mediums on said mounting member maintains electromagnetic fields between said mounting member and said attenuator device means.
Claim 8
Dependent Claim
112 words
An attenuator apparatus, comprising: mounting means including dielectric means having ground plane means and signal conductor means insulatively spaced from one another along said dielectric means, said signal conductor means defining separate segment means; input terminal means provided by one of said separate segment means; output terminal means provided by another of said separate segment means; attenuator means having attenuator circuit means thereon; contact means provided on said attenuator means in electrical contact with said attenuator circuit means, said contact means being in electrical engagement with said ground plane means and said one and other separate segment means; and means for removably securing said attenuator means in position on said mounting means.
Claim 9
Dependent Claim
112 words
An attenuator apparatus, comprising: mounting means including dielectric means having ground plane means and signal conductor means insulatively spaced from one another along said dielectric means, said signal conductor means defining separate segment means; input terminal means provided by one of said separate segment means; output terminal means provided by another of said separate segment means; attenuator means having attenuator circuit means thereon; contact means provided on said attenuator means in electrical contact with said attenuator circuit means, said contact means being in electrical engagement with said ground plane means and said one and other separate segment means; and means for removably securing said attenuator means in position on said mounting means.
Claim 10
Dependent Claim
43 words
An attenuator apparatus according to claim 7 wherein said one and other separate segment means are divided into further separate segment means, and switch means mounted on said mounting means for engagement between said further separate segment means to electrically connect same together.
Claim 11
Dependent Claim
26 words
The apparatus according to claim 7 wherein said means for removably securing said attenuator means defines spring clip means for releasable attachment to said mounting means.
Claim 12
Dependent Claim
22 words
The apparatus according to claim 7 wherein said means for removably securing said attenuator means releases both electrical and mechanical securing simultaneously.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |