US3729657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded circuit mounting device with cover
Assignee: Allen Bradley Co LLC
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Filing: 1971-07-15
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Granted: 1973-04-24
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Expires: 1991-07-15
Abstract
Abstract A mounting enclusure for a plug-in circuit card having a cover into which the card is inserted for retention therein, and a base upon which the card and cover are detachably mounted. The base has a number of electrical connector pins that mate with a female connector on the card and a plurality of cavities each formed to accept one end of a circuit card ke, with the opposite end of the key protruding outward from the base. The circuit card has a notch, or notches, in one edge that coincides with circuit card keys protruding from the base when the card and base are connected together. By inserting a key or keys in particular ones of the key cavities, the base is coded to receive only a circuit card with mating notches. The electrical circuit on the card is identified by its edge notching, and thus key location in a base identified the card and circuit which is to be attached to the base. Mounted on the circuit card is a latch that engages the cover to semi-permanently affix the circuit card in the cover when the card is inserted therein.
Inventors
- 👤 J Callan
- 👤 L Freitag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
H; H01; H01R; H01R12/00; H05; H05K; H05K7/00; H05K7/14; H05K7/1461; H01R12/70; H01R12/71; H01R12/72; H01R12/722; H01R13/00; H01R13/64
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
187 words
In a mounting enclosure for a circuit card the combination comprising: a base member having an electrical connector; a circuit card member assembled alongside said base member with a second electrical connector engaged with the connector of said base member for electrical connection with the base member; a cover member mounted against said base member having a front wall, opposite side walls, a top and a bottom enclosing the circuit card member and having an open rear through which the circuit card member is inserted, such open rear facing and being closed by said base member; coupling means associated with the cover member and the circuit card member comprising latching means extending from one of the members and a catch means on the other member, which catch means and latching means overlap one another in latched engagement, securing the circuit card member semi-permanently in the cover member; and coding means associated with the base member and circuit card member comprising key means extending from one of the members and a profile on the other member matching said key means that are in mating assembly with one another.
Claim 2
Dependent Claim
187 words
In a mounting enclosure for a circuit card the combination comprising: a base member having an electrical connector; a circuit card member assembled alongside said base member with a second electrical connector engaged with the connector of said base member for electrical connection with the base member; a cover member mounted against said base member having a front wall, opposite side walls, a top and a bottom enclosing the circuit card member and having an open rear through which the circuit card member is inserted, such open rear facing and being closed by said base member; coupling means associated with the cover member and the circuit card member comprising latching means extending from one of the members and a catch means on the other member, which catch means and latching means overlap one another in latched engagement, securing the circuit card member semi-permanently in the cover member; and coding means associated with the base member and circuit card member comprising key means extending from one of the members and a profile on the other member matching said key means that are in mating assembly with one another.
Claim 3
Dependent Claim
176 words
In a mounting enclosure for a circuit card the combination of: a base with a front face having a first electrical connector and a set of cavities formed in said front face; a circuit card key inserted into one of said cavities with a segment of said circuit card key protruding outward from said front face; a circuit card mounted on said base that has a notch in one edge, and a second electrical connector that mates with said first electrical connector to electrically connect said circuit card to the base, said notch of said circuit card in register with the protruding portion of said circuit card key; a latch member having mounting means affixing said latch member to said card; and a cover enclosing the circuit card and having a side wall with a slot, a catch bridging said slot and engaging the latch member to semi-permanently secure the circuit card in said cover, fastening means connecting said cover to said base and guide means receiving a pair of opposed Edges of the circuit card.
Claim 4
Dependent Claim
176 words
In a mounting enclosure for a circuit card the combination of: a base with a front face having a first electrical connector and a set of cavities formed in said front face; a circuit card key inserted into one of said cavities with a segment of said circuit card key protruding outward from said front face; a circuit card mounted on said base that has a notch in one edge, and a second electrical connector that mates with said first electrical connector to electrically connect said circuit card to the base, said notch of said circuit card in register with the protruding portion of said circuit card key; a latch member having mounting means affixing said latch member to said card; and a cover enclosing the circuit card and having a side wall with a slot, a catch bridging said slot and engaging the latch member to semi-permanently secure the circuit card in said cover, fastening means connecting said cover to said base and guide means receiving a pair of opposed Edges of the circuit card.
Claim 5
Dependent Claim
57 words
The combination of claim 2 in which the base comprises: a plate with a front face having terminals, electrical connector pins protruding outward from said front face of said plate, a plurality of electrical conductors which connect said terminals with said electrical connector pins, and said set of cavities are aligned parallel to said electrical connector pins.
Claim 6
Dependent Claim
83 words
The combination of claim 3 in which there is a pair of channel shaped circuit card keys each having a central web and opposite side flanges, each circuit card key is slidably inserted endwise into one of said cavities of said base with a portion of said circuit card key protruding from said front face of said base, and a flange of each key in register with a notch of the circuit card when said base and said circuit card are connected together.
Claim 7
Dependent Claim
67 words
The combination of claim 4 in which the circuit card to be mounted in the mounting enclosure comprises: a generally rectangular shaped board having a pair of notches in one edge, a mounting aperture and a second electrical connector in which a plurality of sockets are disposed, said second electrical connector slidably engages the first electrical connector to electrically connect said circuit card to said base plate.
Claim 8
Dependent Claim
51 words
The combination of claim 5 in which the latch member has a pair of mounting arms positioned on one side and a wedge segment protruding from an opposite side, said mounting arms snugly fitting through the mounting aperture in the circuit card and affixing said latch member to said circuit card.
Claim 9
Dependent Claim
36 words
The combination of claim 6 in which the wedge shaped segment has a slanting face and is joined to the latch proper by a web that allows the wedge segment to flex with a hinge-like motion.
Claim 10
Dependent Claim
192 words
In a mounting enclosure for a circuit card the combination comprising: a circuit card member having an electrical connector; a cover member housing the circuit card member and having an open rear through which said circuit card member is inserted; coupling means associated with the cover member and the circuit card member comprising a latching means extending from one of the members and a catch means on the other member positioned in the path of travel of said latching means as the circuit card member is inserted into said cover member, the latching means engaging the catch means and securing the circuit card member semi-permanently within the cover member; a base member on which said cover member is mounted closing the open rear of said cover, and having a second electrical connector in mating electrical connection with the connector of said circuit card and attaching said base member to said circuit card member; and coding means associated with the base member and circuit card member comprising key means extending from one of the members and a profile on the other member matching said key means attaching the members and joining the connectors.
Claim 11
Dependent Claim
192 words
In a mounting enclosure for a circuit card the combination comprising: a circuit card member having an electrical connector; a cover member housing the circuit card member and having an open rear through which said circuit card member is inserted; coupling means associated with the cover member and the circuit card member comprising a latching means extending from one of the members and a catch means on the other member positioned in the path of travel of said latching means as the circuit card member is inserted into said cover member, the latching means engaging the catch means and securing the circuit card member semi-permanently within the cover member; a base member on which said cover member is mounted closing the open rear of said cover, and having a second electrical connector in mating electrical connection with the connector of said circuit card and attaching said base member to said circuit card member; and coding means associated with the base member and circuit card member comprising key means extending from one of the members and a profile on the other member matching said key means attaching the members and joining the connectors.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |