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US3755630A Expired / Lapsed US ⏱️ 0.0 years remaining

Wired equipment shelf

Assignee: Bell Canada Inc
•
Filing: 1971-06-03
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Granted: 1973-08-28
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Expires: 1991-06-03
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Abstract

Abstract A mounting shelf for plug-in telephone line equipment is prewired to receive various kinds of vertical circuit board units in a horizontal array. The prewiring gives the options of either arranging in one shelf unit several sequences individual to particular telephone lines, of a few circuit units each, or else placing an ordinary circuit unit in one or more of the available circuit division locations to build longer circuit sequences for some or all of the lines.

Inventors

  • 👤 M Boyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:20
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1422; H05K7/1424; H05K7/1425; H04; H04Q; H04Q1/00; H04Q1/02; H04Q1/03; H04Q1/14; H04Q1/142; H05K7/1438; H05K7/1447; H05K7/1449

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 321 words
A structure adapted for plug-in mounting in linear array of an assortment of plug-in circuit units in a plurality of independent sequences each having an individual array of external connections serving each end of the sequence, comprising: a. an elongated supporting housing adapted for being mounted in parallel multiple aggregations with other units of the same kind, said hoUsing defining an enclosed rectangular volume open at the front, the front being at one of the narrower long sides of said volume, and provided with a rear wall having a first set of mutually insulated electrical terminals arranged in uniformly spaced double columns oriented transverse to the long dimension of said housing; b. electrical conductors carried by said rear wall, extending generally parallel to said long dimension, and link-ing corresponding terminals of the facing linear terminal arrays of consecutive double columns of said first set of electrical terminals; c. a first set of pressure contact receptacle members connected with each of said terminals of said first set on the interior of said rear wall and likewise arranged in double columns, being adapted to engage contacts on both sides of an edge of circuit boards insertable along the median plane of the respective double columns; d. a second set of double columns of mutally insulated terminals carried on said rear wall in non-adjacent intervals between double columns of said first set; e. a second set of pressure contact receptacle members connected with each of the terminals of said second set on the interior of said rear wall adapted to engage a movable array of conductors arranged in a double column and movable towards and away from said rear wall for contact engagement and disengagement; and f. a multiplicity of guides formed or mounted on said housing adapted to direct circuit boards towards aligned engagement of contacts on each side of their rearmost edges with at least said first set of pressure contact receptacles.
Claim 2
Dependent Claim 321 words
A structure adapted for plug-in mounting in linear array of an assortment of plug-in circuit units in a plurality of independent sequences each having an individual array of external connections serving each end of the sequence, comprising: a. an elongated supporting housing adapted for being mounted in parallel multiple aggregations with other units of the same kind, said hoUsing defining an enclosed rectangular volume open at the front, the front being at one of the narrower long sides of said volume, and provided with a rear wall having a first set of mutually insulated electrical terminals arranged in uniformly spaced double columns oriented transverse to the long dimension of said housing; b. electrical conductors carried by said rear wall, extending generally parallel to said long dimension, and link-ing corresponding terminals of the facing linear terminal arrays of consecutive double columns of said first set of electrical terminals; c. a first set of pressure contact receptacle members connected with each of said terminals of said first set on the interior of said rear wall and likewise arranged in double columns, being adapted to engage contacts on both sides of an edge of circuit boards insertable along the median plane of the respective double columns; d. a second set of double columns of mutally insulated terminals carried on said rear wall in non-adjacent intervals between double columns of said first set; e. a second set of pressure contact receptacle members connected with each of the terminals of said second set on the interior of said rear wall adapted to engage a movable array of conductors arranged in a double column and movable towards and away from said rear wall for contact engagement and disengagement; and f. a multiplicity of guides formed or mounted on said housing adapted to direct circuit boards towards aligned engagement of contacts on each side of their rearmost edges with at least said first set of pressure contact receptacles.
Claim 3
Dependent Claim 54 words
A structure as defined in claim 1 in which said second set of pressure contact receptacle members are adapted to engage contacts on both sides of the edges of a circuit board respectively insertable along the median plane of the double columns of terminals to which the terminals of said second set are connected.
Claim 4
Dependent Claim 69 words
A structure as defined in claim 1 in which the receptacles respectively associated with at least the terminals of said second set and with a double column of terminals of said first set adjacent to a double column of terminals of said second set do not provide electrical contact between corresponding members in each linear array of a double column when no circuit boards are inserted in said structure.
Claim 5
Dependent Claim 53 words
A structure as defined in claim 1 in which the pressure contacts of said first set and the pressure contacts of said second set are so constructed that no electrical contact is established between corresponding contacts of the linear arrays of a double column when no circuit boards are inserted in said structure.
Claim 6
Dependent Claim 55 words
A structure as defined in claim 3 in which near the front of said housing, at either end in the long dimension, an angle bracket or flange is located carrying a plurality of test jacks providing access to some of the conductors connected to the end linear arrays of the terminals of said first set.
Claim 7
Dependent Claim 26 words
A structure as defined in claim 5 in which said bracket is de-mountably attached or attachable to the outside of the side wall of said housing.
Claim 8
Dependent Claim 93 words
A structure as defined in claim 3 further comprising: g. brackets on the sides of said housing near a median plane adapted to mount said housing in a position sufficiently spaced from vertical supports to permit the passage of a cable; and h. two terminal field blocks dismountably attachable to the sides of said housing in front of said brackets, the terminals of said blocks being connected by cabled wiring to the terminals of said second set and to the terminals of the end arrays of said first set on said rear wall.
Claim 9
Dependent Claim 90 words
In combination, a structure as defined in claim 3 and one or more intermediate circuit division units mounted therein and engaging the contacts of said second set and also the contacts of an adjacent double column of contacts of said first set and providing connections between contacts of one linear array of said last-mentioned double column and corresponding coNtacts of one linear array of said double column of said second set and likewise providing connections between corresponding members of the other linear arrays of the two double columns just mentioned.
Claim 10
Dependent Claim 59 words
A combination as defined in claim 8 in which said circuit division units include test jacks at the front thereof at least one of which is connected with conductor connecting contacts of one pair of columns as aforesaid and at least another of which test jacks is connected with conductor connecting contacts of another pair of columns as aforesaid.
Claim 11
Dependent Claim 90 words
In combination, a structure as defined in claim 5, and one or more intermediate circuit division units mounted therein and engaging the contacts of said second set and also the contacts of an adjacent double column of contacts of said first set and providing connections between contacts of one linear array of said last-mentioned double column and corresponding contacts of one linear array of said double column of said second set and likewise providing connections between corresponding members of the other linear arrays of the two double columns just mentioned.
Claim 12
Dependent Claim 59 words
A combination as defined in claim 10 in which said circuit division units include test jacks at the front thereof at least one of which is connected with conductor connecting contacts of one pair of columns as aforesaid and at least another of which test jacks is connected with conductor connecting contacts of another pair of columns as aforesaid.
Claim 13
Dependent Claim 79 words
A combination as defined in claim 10 in which the connections provided by said intermediate circuit division units connect the corresponding contacts of the mutually nearer linear arrays of the two double columns of contacts and separately connect the corresponding contacts of the remaining linear arrays of contacts of said columns, whereby connections for the left-hand circuit sequence are brought out on said rear wall to the right of the connections for the right-hand circuit sequence and vice versa.
Claim 14
Dependent Claim 69 words
A combination as defined in claim 8, in which said circuit division units each have two circuit boards provided with a multiplicity of contacts on both sides of their respective rear edges for engagement and connection with pressure contacts of said first set in the case of one of said circuit boards and pressure contacts of said second set in the case of the other of said circuit boards.
Claim 15
Dependent Claim 33 words
A structure as defined in claim 3 in which there are at least two double columns of terminals of said first set between any two double columns of terminals of said second set.
Claim 16
Dependent Claim 68 words
A structure as defined in claim 3 in which consecutive columns of terminals of said second set are positioned so as to bracket one more double column of terminals of said first set in some cases than in others and in which the double columns of said second set are ordered with the smaller intervals towards one end of said structure and the larger intervals towards the other.
Claim 17
Dependent Claim 128 words
A combination as defined in claim 11, in which said electrical conductors carried by said rear wall of said housing include two linear series of conductors for connecting equipment to a battery, of which one is adapted to carry the battery connection to all equipment mounted in said structure when circuit boards are in engagement with all pressure contact receptacle members of said first set, and of which the other linear set of electrical conductors is adapted to provide a fused direct current supply individual to each group of equipment separated by said intermediate circuit division units, and in which combination the said test jacks include a battery test jack for each such equipment group and a fuse adjacent such test jack connected on the battery side thereof.
Claim 18
Dependent Claim 32 words
A structure as defined in claim 1 in which said electrical conductors carried by said rear wall of said housing are provided by a conducting layer pattern of the printed circuit type.

References Cited (Backward Citations)

DE1051335B Cited
US3177404A Cited
DE1139894B Cited
US3394287A Cited
DE1165094B Cited
DE1245432B Cited
US3462558A Cited
US3541396A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-27 1977-02-26 1977-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-27 1981-02-26 1981-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-27 1985-02-26 1985-08-28 $7700.00 Window Closed / Lapsed

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