US4999744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector mechanism
Assignee: Motorola Solutions Inc
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Filing: 1989-12-28
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Granted: 1991-03-12
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Expires: 2009-12-28
Abstract
Abstract This ejector mechanism supplies a force to remove an assembly of printed circuit boards (PCB's) from an enclosure. Each PCB in the assembly is electrically connected by a projecting rear portion of the PCB which engages a multiple contact connector attached to the enclosure. The friction associated with such engagement resists sliding the PCB assembly to disengage the connector. In an embodiment, a U-shaped lever is pivotally mounted to the assembly and applies a distributed force through each leg which is substantially adjacent each PCB. This provides force application substantially in the place of each PCB, thereby maximizing the desired force and minimizing undesired torque on each PCB.
Inventors
- 👤 Lowel E. Blankenship
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:31
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1409
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
159 words
A printed circuit board (PCB) assembly configured to slide into an enclosure comprising: two spaced apart PCB's; means mounted at the rear of each PCB for electrically connecting each PCB with a connector; means for mounting one of said PCB's to the other PCB so that said PCB's are parallel to each other; ejector means pivotally mounted to said mounting means for applying a distributed force against an object not part of said assembly when said assembly is seated in the enclosure to cause substantially translational motion of said assembly away from the enclosure, said ejector means comprising a manually operable U-shaped lever with a central handle and two legs each with a distal end, said legs being pivotally mounted to said mounting means adjacent said one and other PCB, respectively, so that force is applied adjacent each PCB against the object upon pivotal rotation of said lever, said handle and legs integrally made as a single rigid element.
Claim 2
Dependent Claim
159 words
A printed circuit board (PCB) assembly configured to slide into an enclosure comprising: two spaced apart PCB's; means mounted at the rear of each PCB for electrically connecting each PCB with a connector; means for mounting one of said PCB's to the other PCB so that said PCB's are parallel to each other; ejector means pivotally mounted to said mounting means for applying a distributed force against an object not part of said assembly when said assembly is seated in the enclosure to cause substantially translational motion of said assembly away from the enclosure, said ejector means comprising a manually operable U-shaped lever with a central handle and two legs each with a distal end, said legs being pivotally mounted to said mounting means adjacent said one and other PCB, respectively, so that force is applied adjacent each PCB against the object upon pivotal rotation of said lever, said handle and legs integrally made as a single rigid element.
Claim 3
Dependent Claim
20 words
The assembly according to claim 1 where said ejector means comprises means for removably locking said assembly to the enclosure.
Claim 4
Dependent Claim
23 words
The assembly according to claim 1 further comprising a front panel mounted to said mounting means and being substantially perpendicular to said PCB's.
Claim 5
Dependent Claim
48 words
The assembly according to claim 3 wherein said assembly has an inserted poosition relative to the enclosure when said PCB's are connected with the connector, said front panel being disposed between said PCB's and the distal ends of said legs when said assembly is in said inserted position.
Claim 6
Dependent Claim
26 words
The assembly according to claim 4 wherein said handle and distal ends form a plane substantially parallel and adjacent the front panel in said inserted position.
References Cited (Backward Citations)
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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) | 1994-03-11 | 1994-09-10 | 1995-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-11 | 1998-09-10 | 1999-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-11 | 2002-09-10 | 2003-03-12 | $7700.00 | Window Closed / Lapsed |