Patent US3786322A successfully refreshed from Google Patents.
US3786322A
Expired / Lapsed
US
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Unitary wound resistor-capacitor network
Assignee: AT&T Inc
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Filing: 1972-11-16
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Granted: 1974-01-15
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Expires: 1992-11-16
Abstract
Abstract Two network forming strips are wound to form a resistorcapacitor network roll. Each strip is a sheet of dielectric material having a contiguous layer of metal, on one side thereof, formed in an elongated conductive path which extends back and forth lengthwise along the strip in serpentine fashion. An electrical connection is made at each end of the network roll with an end portion of a different one of the conductive paths to form an R-C network therebetween having a resistance which is significant with respect to the capacitance thereof.
Inventors
- 👤 D Brown
- 👤 O Masopust
- 👤 C Hills
- 👤 J Stoltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:16
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/40; H01C; H01C17/00; H01C17/04; H01C17/06; H01C17/07; H01C7/00; H01C7/22; H01G13/00; H01G13/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
183 words
In a resistor-capacitor network: first and second lengths of overlapping and convoluted insulating material; a first conductive path on a first side of the first length of insulating material, the first path extending back and forth lengthwise along the insulating material in a serpentine fashion; a second conductive path on a first side of the second length of insulating material, the second path extending back and forth lengthwise along the insulating material in a serpentine fashion, the first side of the second length of insulating material being chosen such that the first and second conductive paths are electrically separated by the first and the second lengths of insulating material; first means for electrically contacting only one end of the first conductive path, and second means for electrically contacting only one end of the second conductive path, the first and second conductive paths each forming a resistive path running between the contacted end of the path and the uncontacted end of the path, and together forming a capacitive path therebetween, so that a resistorcapacitor network is formed between the first and second contacting means.
Claim 2
Dependent Claim
183 words
In a resistor-capacitor network: first and second lengths of overlapping and convoluted insulating material; a first conductive path on a first side of the first length of insulating material, the first path extending back and forth lengthwise along the insulating material in a serpentine fashion; a second conductive path on a first side of the second length of insulating material, the second path extending back and forth lengthwise along the insulating material in a serpentine fashion, the first side of the second length of insulating material being chosen such that the first and second conductive paths are electrically separated by the first and the second lengths of insulating material; first means for electrically contacting only one end of the first conductive path, and second means for electrically contacting only one end of the second conductive path, the first and second conductive paths each forming a resistive path running between the contacted end of the path and the uncontacted end of the path, and together forming a capacitive path therebetween, so that a resistorcapacitor network is formed between the first and second contacting means.
Claim 3
Dependent Claim
40 words
In a resistor-capacitor network as recited in claim 1, wherein the electrically contacting means comprises a solder block at each end of the convoluted lengths of insulating material, each solder block contacting an end portion of a different conductive path.
Claim 4
Dependent Claim
44 words
In a resistor-capacitor network as recited in claim 1, wherein: the first and second conductive paths are each a plurality of straight and parallel conductive paths extending lengthwise of the lengths of insulating material and interconnected at their ends to define a serpentine path.
Claim 5
Dependent Claim
211 words
In a resistor-capacitor network roll having a frequency dependent impedance, the network exhibiting a first impedance in response to an energizing signal applied thereto having a frequency which approaches zero, and exhibiting a decreasing impedance which approaches an essentially constant value in response to an increasing frequency energizing signal applied thereto: first and second overlapping, convolutely wound network forming strips, each strip being a sheet of dielectric material having a conductive, metal layer contiguous to one side thereof, the dielectric material of one of the strips separating the metal layer of that strip from the metal layer of the other strip, and each of the metal layers being a conductive path extending back and forth lengthwise along the strip in serpentine fashion; first means for electrically contacting only one end of the conductive path on the first network forming strip, and second means for electrically contacting only one end of the conductive path on the second network forming strip, the conductive paths on the first and second network forming strips each forming a resistive path extending between the contacted end of the path and the uncontacted end of the path, and together forming a capacitive path therebetween, so that a resistor-capacitor network is formed between the first and second contacting means.
Claim 6
Dependent Claim
211 words
In a resistor-capacitor network roll having a frequency dependent impedance, the network exhibiting a first impedance in response to an energizing signal applied thereto having a frequency which approaches zero, and exhibiting a decreasing impedance which approaches an essentially constant value in response to an increasing frequency energizing signal applied thereto: first and second overlapping, convolutely wound network forming strips, each strip being a sheet of dielectric material having a conductive, metal layer contiguous to one side thereof, the dielectric material of one of the strips separating the metal layer of that strip from the metal layer of the other strip, and each of the metal layers being a conductive path extending back and forth lengthwise along the strip in serpentine fashion; first means for electrically contacting only one end of the conductive path on the first network forming strip, and second means for electrically contacting only one end of the conductive path on the second network forming strip, the conductive paths on the first and second network forming strips each forming a resistive path extending between the contacted end of the path and the uncontacted end of the path, and together forming a capacitive path therebetween, so that a resistor-capacitor network is formed between the first and second contacting means.
Claim 7
Dependent Claim
332 words
In a resistor-capacitor network: first and second interleaved, convoluted strips of insulating material forming a roll; a first flat conductor extending serpentine fashion along a first surface of the first strip of insulating material with the first leg of the serpentine conductor extending along a first lengthwise edge of the first strip of insulating material and with the last leg of the serpentine conductor extending along a path that is spaced from the opposite lengthwise edge of the first strip of insulating material; a second flat conductor extending serpentine fashion along a first surface of the second strip of insulating material with the first leg of the serpentine conductor extending along a first lengthwise edge of the second strip of insulating material and with the last leg of the serpentine conductor extending along a path that is spaced from the opposite lengthwise edge of the second strip of insulating material, the first side of the second length of insulating material being chosen such that the First and second flat conductors are electrically separated by the first and second strips of insulating material, and the first lengthwise edge of the second strip of insulating material being that edge which is at the opposite end of the roll from the first lengthwise edge of the first strip of insulating material; first means for electrically contacting only the first leg of the first conductor, and second means for electrically contacting only the first leg of the second conductor, the first and second conductors each forming a resistive path running between the contacted first leg of the conductor and the uncontacted last leg of the conductor where the resistance is determined by the resistivity, length, width and thickness of the first and second conductors, and together forming a capacitive path therebetween where the capacitance is determined by the total overlapping area of the first and second conductors, taken in conjunction with the thickness and the dielectric constant of the first and second strips of insulating material.
Claim 8
Dependent Claim
332 words
In a resistor-capacitor network: first and second interleaved, convoluted strips of insulating material forming a roll; a first flat conductor extending serpentine fashion along a first surface of the first strip of insulating material with the first leg of the serpentine conductor extending along a first lengthwise edge of the first strip of insulating material and with the last leg of the serpentine conductor extending along a path that is spaced from the opposite lengthwise edge of the first strip of insulating material; a second flat conductor extending serpentine fashion along a first surface of the second strip of insulating material with the first leg of the serpentine conductor extending along a first lengthwise edge of the second strip of insulating material and with the last leg of the serpentine conductor extending along a path that is spaced from the opposite lengthwise edge of the second strip of insulating material, the first side of the second length of insulating material being chosen such that the First and second flat conductors are electrically separated by the first and second strips of insulating material, and the first lengthwise edge of the second strip of insulating material being that edge which is at the opposite end of the roll from the first lengthwise edge of the first strip of insulating material; first means for electrically contacting only the first leg of the first conductor, and second means for electrically contacting only the first leg of the second conductor, the first and second conductors each forming a resistive path running between the contacted first leg of the conductor and the uncontacted last leg of the conductor where the resistance is determined by the resistivity, length, width and thickness of the first and second conductors, and together forming a capacitive path therebetween where the capacitance is determined by the total overlapping area of the first and second conductors, taken in conjunction with the thickness and the dielectric constant of the first and second strips of insulating material.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |