Telephonic communications – Terminal accessory or auxiliary equipment – Telephone receiver support
Reexamination Certificate
1999-07-06
2001-07-03
Chiang, Jack (Department: 2642)
Telephonic communications
Terminal accessory or auxiliary equipment
Telephone receiver support
C379S455000
Reexamination Certificate
active
06256387
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a device rack for holding, for example, a cellular phone, and more particularly to such a device rack, which comprises two symmetrical clamping members moved relative to each other by means of the control of a rotary disk for clamping an article, for example, a cellular phone on a platform.
Various device racks have been disclosed for use to hold an article, for example, a cellular phone. These device racks commonly use clamping means to hold the article. A device rack for this purpose must be conveniently adjustable to fit articles of different sizes. The clamping means must be designed to provide proper clamping force without causing a damage to the article. Conventionally, spring means are used in device racks to impart a pressure to the clamping means against the article. However, the installation of the spring means is complicated. When spring means is used, complicated adjustment means shall be installed, so that the clamping means can be moved to adjust the pitch subject to the size of the article to be held. Further, when the spring power of the spring means is suddenly released, the installed article may be damaged.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide a device rack, which eliminates the aforesaid drawbacks. According to one aspect of the present invention, the device rack comprises a base frame having an upright annular flange and an upright peripheral wall around the upright annular flange, a rotary disk ratably coupled to the upright annular flange inside the base frame and partially peripherally projecting out of the base frame for rotation by hand, the rotary disk having a spiral groove at a front side, two angled clamping members coupled to the rotary disk and moved relative to each other upon a rotary motion of the rotary disk, the clamping members each having a bottom rod inserted into the spiral groove at the rotary disk, and a platform covered on the base frame over the rotary disk to hold the rotary disk and the clamping members in place.
According to another aspect of the present invention, the clamping members each have parallel sliding ribs, and the platform has parallel sliding grooves respectively coupled to the sliding ribs at the clamping members to guide movement of the clamping members upon rotary motion of the rotary disk.
REFERENCES:
patent: 5457745 (1995-10-01), Wang
patent: 5555302 (1996-09-01), Wang
patent: 5694468 (1997-12-01), Hsu
patent: 5788202 (1998-08-01), Richter
Chiang Jack
Dougherty & Troxell
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