US3767974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insertion and extraction lever for printed circuit cards
Assignee: Cogar Corp
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Filing: 1972-01-03
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Granted: 1973-10-23
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Expires: 1992-01-03
Abstract
Abstract A lever for aiding in inserting printed circuit cards into and extracting them from mating connectors mounted in a multiple card guiding arrangement. The cards ride in individual slots in a multiple card cage, and during insertion they can be guided freely until the card''s output conductors initially confront the receiving connector block at the rear of the cage. At this point, cylindrical bosses on corresponding upper and lower levers are positioned to contact a reinforced edge of the card, with pivoting action by the lever driving the card into the cage and urging the card''s conductors into their mating connectors. Rotation of the levers in the opposite direction brings another cylindircal boss on each lever into contact with an inner surface of the card''s reinforced edge, extracting the card conductors from the connector block and permitting free-sliding removal of the card from the cage.
Inventors
- 👤 D Donovan
- 👤 C Card
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:11
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1409
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
Apparatus for controlling the positioning of a plurality of circuit cards with respect to a card guiding system comprising a plurality of cards, a housing for receiving said cards which are removably mounted in said housing, a pair of control lever means for each of said cards mounted on said housing for inserting each of said cards into and extracting it from said housing, each of said cards including a control edge for transmitting to each of said cards insertion and extraction forces applied by said pair of control lever means.
Claim 2
Dependent Claim
91 words
Apparatus for controlling the positioning of a plurality of circuit cards with respect to a card guiding system comprising a plurality of cards, a housing for receiving said cards which are removably mounted in said housing, a pair of control lever means for each of said cards mounted on said housing for inserting each of said cards into and extracting it from said housing, each of said cards including a control edge for transmitting to each of said cards insertion and extraction forces applied by said pair of control lever means.
Claim 3
Dependent Claim
33 words
Apparatus in accordance with claim 2 wherein said housing includes a plurality of guide slots for receiving said cards, and wherein said slots define a limit stop for said insertion of said cards.
Claim 4
Dependent Claim
48 words
Apparatus in accordance with claim 2 wherein said control edge of each of said cards includes at least one arm gripping each of said cards, said arm having means cooperating with said limit stop to define the final insertion depth of each of said cards within said housing.
Claim 5
Dependent Claim
41 words
Apparatus in accordance with claim 3 wherein said cooperating means includes a ridge extending beyond the dimensions of each of said cards, said ridge coming into contact with said limit stop at said final insertion depth for each of said cards.
Claim 6
Dependent Claim
57 words
Apparatus in accordance with claim 4 wherein said housing includes a plurality of connector blocks mounted on a rear wall thereof, each of said cards includes a plurality of conductive members received within said connector blocks, and wherein said conductive members are received with said connector blocks at said final insertion position of each of said cards.
Claim 7
Dependent Claim
41 words
Apparatus in accordance with claim 1 wherein said pair of control lever means includes a first boss for applying said insertion force to each of said cards and a second boss for applying said extraction force to each of said cards.
Claim 8
Dependent Claim
56 words
Apparatus in accordance with claim 6 wherein said housing includes an outwardly projecting mounting finger carrying said pair of control lever means for rotational movement, said finger having a transverse bore, and said pair of control lever means including a bifurcated mounting portion having at least one pivoting ear received within said bore of said finger.
Claim 9
Dependent Claim
56 words
Apparatus in accordance with claim 7 wherein said finger includes a forward tapered region accommodated within and to spread said bifurcated mounting portion of said pair of control lever means, said spreading terminating when said pivoting ear mates with said bore of said finger, thereby defining the pivoting arc of said pair of control lever means.
Claim 10
Dependent Claim
50 words
Apparatus in accordance with claim 6 wherein said housing includes means mounting said part of control lever means for rotation toward and away from said housing, and wherein said first boss contacts said control edge of each of said cards during extraction of each of said cards from said housing.
Claim 11
Dependent Claim
17 words
Apparatus in accordance with claim 9 wherein said first and second bosses are substantially cylindrical in shape.
Claim 12
Dependent Claim
108 words
Apparatus in accordance with claim 9 wherein each of said cards includes a plurality of conductive elements along a rear edge thereof and said housing includes a plurality of connector blocks for receiving said conductive elements of each of said cards and at least one channel for guiding each of said cards toward said connector blocks, and wherein each of said cards is inserted into said channel and rides freely therein until said rear eDge is in confronting relationship with said connector blocks, the rotation of said pair of control lever means toward said housing causing said first boss to force said conductive elements into said connector blocks.
Claim 13
Dependent Claim
49 words
Apparatus in accordance with claim 11 wherein the rotation of said control lever means away from said housing causes said second boss to contact said control edge to withdraw said conductive elements from said connector blocks, to thereby reposition each of said cards for free riding within said channel.
Claim 14
Dependent Claim
117 words
Apparatus in accordance with claim 11 wherein each of said cards further includes retaining means for cooperating with said pair of control lever means for positively urging each of said cards into its insertion position, said retaining means including an outwardly projecting tab having a pair of gripping wings, and said pair of control lever means includes a retention slot in the body thereof having a pair of side flanges, said control lever means adapted to be rotated further toward said housing after said conductive elements have been received within said connector blocks to cause said side flanges of said slot to pass over said gripping wings to establish a retention position for each of said cards.
References Cited (Backward Citations)
US3335386A
Cited
US3360689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |