Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2002-11-08
2003-10-28
Chervinsky, Boris (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S704000, C361S709000, C361S752000, C174S050540, C165S080300, C165S185000
Reexamination Certificate
active
06639804
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to adjustable devices used in apparatuses such as computers, and particularly to adjustable devices that allow a heat sink retention module to fit different circuit boards in a computer.
2. Prior Art
With rapid development of the computer industry, more and more kinds of mother boards are being produced. Various electronic components such as central processing units (CPUs) are fixed on the mother boards. Positions provided by a mother board for such components are not standardized. For example, CPUs, such as the Pentium 4 by Intel Corporation, are installed on different mother boards in different positions by different manufacturers. In a typical computer, a heat sink and an accompanying retention module are mounted on the mother board with the CPU. Adjustable devices have been developed to provide flexibility of positioning of the retention module on different mother boards. The adjustable devices typically attach the retention module and mother board to the computer enclosure.
FIG. 7
shows a conventional adjustable device, which comprises a supporting plate
10
′ and a securing plate
20
′. The supporting plate
10
′ forms a plurality of locking blocks
104
′ thereon. Each locking block
104
′ defines three first through holes
106
′. The securing plate
20
′ defines a plurality of second through holes
202
′ corresponding to the locking blocks
104
′. A plurality of bolts
206
′ each have an outer thread in a bottom portion thereof, and an inner thread in a top portion thereof. A mother board
30
′ defines a plurality of third through holes
32
′. Positions for CPUs
50
′ provided by different mother boards
30
′ are different. Positions of third through holes
32
′ on the mother boards
30
′ are accordingly different. The bolts
206
′ are extended through selected first through holes
106
′ of the supporting plate
10
′ and through the second through holes
202
′ of the securing plate
20
′. The bottom portions of the bolts
206
′ are engaged with the supporting plate
10
′ in screw holes (not labeled) that are defined below the first through holes
106
′. The screws
40
′ are extended through the retention module
40
′ and the third through holes
32
′ of the mother board
30
′ to engage with the bolts
206
′. The retention module
40
′, mother board
30
′ and securing plate
20
′ are thus secured on the supporting plate
10
′. However, the mother board
30
′ may need repair, maintenance or replacement after a period of time. In such cases, the mother board
30
′ is detached from the supporting plate
10
′. To do this, the securing plate
20
′ must also be detached from the supporting plate
10
′. This is unduly inconvenient and time-consuming. In addition, there is a risk that the loose securing plate
20
′ will be misplaced. Furthermore, the screw holes (not labeled) of the supporting plate
10
′ are too together. It is difficult and troublesome to correctly engage the bolts
206
′ in these screw holes.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an adjustable device for readily and safely securing a mother board to a supporting plate.
To achieve the above-mentioned object, an adjustable device in accordance with the present invention comprises a supporting plate and a securing plate. The supporting plate comprises a locking block and three latches. The locking block defines three locking holes along a length thereof. The locking holes comprise a left locking hole, a middle locking hole, and a right locking hole. The middle locking hole is offset slightly forwardly of both the left and right locking holes. The latches comprise a left latch, a right latch, and a front latch disposed forwardly of the left and right latches. Each latch defines a slot and a screw aperture. The securing plate comprises three fasteners corresponding to the latches, respectively. Each fastener defines a through aperture. The securing plate defines a through hole. The position of the securing plate secured to the supporting plate is adjustable by a selected fastener being selectively engaged in the slot of a corresponding latch, a screw extending through the through hole to engage in a corresponding locking hole, and another screw extending a through aperture to engage in a corresponding screw aperture.
REFERENCES:
patent: 5661640 (1997-08-01), Mills et al.
patent: 5673176 (1997-09-01), Penniman et al.
patent: 6252768 (2001-06-01), Lin
patent: 6282093 (2001-08-01), Goodwin
patent: 6424538 (2002-07-01), Paquin
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
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