US3885117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced line switch system
Assignee: Delta Electronics Inc
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Filing: 1974-04-03
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Granted: 1975-05-20
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Expires: 1994-04-03
Abstract
Abstract A switch system for interconnecting a plurality of balanced line inputs with a plurality of balanced line outputs is disclosed. The lines are crossed in a matrix with a pair of rotatable switch means mounted at each crosspoint. Each pair of the switch means provides straight through connections for the input and output lines while in a first position, and a cross connection at the matrix point while in a second position. The switch means provides identical path lengths for each side of the balanced line before and after switching. The switch system also includes means for grounding the unused contacts and the inactive line sections remaining in the matrix after an interconnection has been made. The matrix is formed of a plurality of interchangeable modules that allow quick and convenient expansion of the matrix when needed.
Inventors
- 👤 Kenneth Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:42
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01H; H01H3/00; H01H3/22; H01H3/26
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
130 words
A switch system for interconnecting a plurality of balanced input lines to a plurality of balanced output lines, said switch system comprising: a. a plurality of switch modules, each of said modules having a pair of balanced input line conductors and a pair of balanced output line conductors, said modules being interconnected with adjacent balanced line conductors interconnected to thereby define a crossbar matrix, b. each module also defining a pair of rotatable means for rotation between a first through position and a second cross connect position, each of said means defining an input line through connect portion, an output line through connect portion, and a cross connect portion, c. each pair of cross connect portions being of equal length and defining parallel helix portions having substantially 90* of rotation.
Claim 2
Dependent Claim
130 words
A switch system for interconnecting a plurality of balanced input lines to a plurality of balanced output lines, said switch system comprising: a. a plurality of switch modules, each of said modules having a pair of balanced input line conductors and a pair of balanced output line conductors, said modules being interconnected with adjacent balanced line conductors interconnected to thereby define a crossbar matrix, b. each module also defining a pair of rotatable means for rotation between a first through position and a second cross connect position, each of said means defining an input line through connect portion, an output line through connect portion, and a cross connect portion, c. each pair of cross connect portions being of equal length and defining parallel helix portions having substantially 90* of rotation.
Claim 3
Dependent Claim
44 words
A switch system as claimed in claim 1 wherein each side of a pair of input lines and each side of a pair of output lines in any given module are of identical path lengths in both the through connect and cross connect configurations.
Claim 4
Dependent Claim
35 words
A switch system as claimed in claim 1 wherein the cross connect portions are rotated inwardly between the conductors of said input and output lines, when said rotatable means are in their first through position.
Claim 5
Dependent Claim
67 words
A switch system as claimed in claim 1 wherein two pairs of rotatable means are provided to define a rotatable means at each intersection of said conductors, said first pair of rotatable means providing an interconnect-left configuration when placed in said second cross connect position, said second pair of rotatable means providing an interconnectright configuraton when said second pair is placed in said second cross connect position.
Claim 6
Dependent Claim
144 words
A switch system for interconnecting a plurality of balanced input lines with a plurality of balanced output lines, said switch system comprising: a. a module frame member, b. a pair of balanced input line conductors mounted within said frame, c. a pair of balanced output line conductors mounted within said frame and aligned across said input line to form a crossbar matrix, d. a pair of rotatable means mounted within said frame for selectively interconnecting said input line to said output line at the respective crossover point for each line, each of said rotatable means having equally spaced input and output through connect portions and equally spaced equal length cross connect portions, each of said cross connect portions being equally spaced from the other along the entire length of the cross connect portion when said rotatable means has interconnected said input and output lines.
Claim 7
Dependent Claim
144 words
A switch system for interconnecting a plurality of balanced input lines with a plurality of balanced output lines, said switch system comprising: a. a module frame member, b. a pair of balanced input line conductors mounted within said frame, c. a pair of balanced output line conductors mounted within said frame and aligned across said input line to form a crossbar matrix, d. a pair of rotatable means mounted within said frame for selectively interconnecting said input line to said output line at the respective crossover point for each line, each of said rotatable means having equally spaced input and output through connect portions and equally spaced equal length cross connect portions, each of said cross connect portions being equally spaced from the other along the entire length of the cross connect portion when said rotatable means has interconnected said input and output lines.
Claim 8
Dependent Claim
50 words
A switch system as claimed in claim 5 wherein each of said rotatable means further comprises: a. a central insulating shaft member, said shaft having an axis of rotation which intersects an input and an output line conductor, b. a pair of insulating members for supporting said cross connect portions.
Claim 9
Dependent Claim
38 words
A switch system as claimed in claim 6 wherein each of said cross connect members defines identical helix portions having 90* of rotation, said cross connect members defining parallel helixes when said input and output lines are interconnected.
Claim 10
Dependent Claim
32 words
A switch system as claimed in claim 7 wherein said paired input line conductors are parallel and of equal length, and said paired output line conductors are parallel and of equal length.
Claim 11
Dependent Claim
38 words
A switch system as claimed in claim 5 wherein each of said through connect portions defines a contact means, said means being formed by deforming the end of the through connect portion to define a curved entry shoulder.
Claim 12
Dependent Claim
56 words
A switch system as claimed in claim 5 wherein an electrical contact means is defined between each of said input or output line conductors and said through connectors, said contact means including a movable flattened tubular contact mounted on said through connector and a stationary flexible point contact means mounted on said input or output line.
Claim 13
Dependent Claim
138 words
A switch module for use in a matrix for interconnecting a plurality of balanced input lines to a plurality of balanced output lines, said module comrising: a. a first paIr of balanced line conductors said first pair defining an input line and a through connect output line, b. a second pair of balanced line conductors said second pair defining interconnect left and interconnect right output lines, said second pair aligned across said first pair to form a crossbar matrix, c. two pairs of rotatable means mounted within said module, with a single rotatable means at each crossover point, d. each of said rotatable means defining a pair of through connect portions and a single cross connect portion, E. each of said cross connect portions being of equal length and defining a helix portion having substantially 90* of rotation.
Claim 14
Dependent Claim
138 words
A switch module for use in a matrix for interconnecting a plurality of balanced input lines to a plurality of balanced output lines, said module comrising: a. a first paIr of balanced line conductors said first pair defining an input line and a through connect output line, b. a second pair of balanced line conductors said second pair defining interconnect left and interconnect right output lines, said second pair aligned across said first pair to form a crossbar matrix, c. two pairs of rotatable means mounted within said module, with a single rotatable means at each crossover point, d. each of said rotatable means defining a pair of through connect portions and a single cross connect portion, E. each of said cross connect portions being of equal length and defining a helix portion having substantially 90* of rotation.
Claim 15
Dependent Claim
76 words
A switch module as claimed in claim 11 wherein a. said first pair of rotatable means provides a through connect configuration for said module when in a first through position, and an interconnect left configuration when in a second cross connect position, b. said second pair of rotatable means provides a through connect configuration for said module when in a first through connect position and an interconnect left configuration when in a second cross connect position.
Claim 16
Dependent Claim
32 words
A switch module as claimed in claim 11 wherein the cross connect portions of said rotatable means rotate inwardly between said conductors, when said rotatable means are in their first through position.
Claim 17
Dependent Claim
50 words
A switch module as claimed in claim 11 wherein each of said rotatable means further comprises: a. a central insulating shaft member, said shaft having an axis of rotation which intersects an input and an output line conductor, b. a pair of insulating members for supporting said cross connect portions.
Claim 18
Dependent Claim
40 words
A switch module as claimed in claim 11 wherein each pair of cross connect members defines identical helix portions having 90* of rotation, said pair of cross connect members defining parallel helixes when said input and output lines are interconnected.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |