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Adjustable support arm for video monitorAdjustable support arm for video monitor description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070278361, Adjustable support arm for video monitor. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO A RELATED APPLICATION [0001]The subject matter of this Application relates generally to the article disclosed in U.S. Design patent application Ser. No. 29/244,753, filed by Applicants on Dec. 13, 2005. BACKGROUND OF THE INVENTION [0002]1. Field of the Invention [0003]The invention relates generally to apparatus for supporting computer video monitors above a chair, desk, or table. More particularly, the invention pertains to a support arm for video monitors and related accessories, providing adjustable positioning through multiple planes and about multiple axes of rotation for the convenience and comfort of the user. [0004]2. Description of the Prior Art [0005]Computer video monitors have been supported by a variety of base mounts typically allowing rotational adjustment about a vertical axis and forward and backward tilting adjustment of the viewing plane of the monitor. These base mounts include a foot portion, designed to rest on a support surface such as a computer cabinet or a desktop. Such simple mounts have proven adequate for most desktop computer applications where the base mount is maintained in a fixed position on a support surface. The user is typically sitting in a chair adjacent the desk upon which the video monitor is supported, so there is no necessity to move the monitor out of the way to facilitate ingress or egress of the user. An example of such an adjustable monitor base mount is the Tilt/Swivel Support For Personal Computer Monitor, shown in U.S. Pat. No. 5,683,068, issued to Chase et al. [0006]Other arrangements for supporting video monitors either for use with computers or for other purposes, rely upon a base and an extension arm to support the monitor. Different connections between the base and a support surface or structure are shown in the prior art. For example, Des. No. 314,505, granted to Chen for a Support For A Computer Monitor, appears to include a base clamp for attachment to a desk or table. Similarly, Des. No. 325,868, issued to Bartok, shows a Computer Monitor Support Arm having a "C" clamp base. And, Des. No. 366,254, granted to Lynch et al., illustrates a Computer Monitor Support Arm employing a base having downwardly extending ears or fingers for attachment to a housing or other structure. [0007]Articulated arms, allowing selective positioning and adjustment of a video monitor for viewing and/or storage, are also shown in the prior art. Exemplary is U.S. Pat. No. 5,876,008 issued to Sweere et al., for a Suspension System For Video Monitor Or Other Equipment. A four bar linkage system including a weight counterbalance and gas springs, is shown. And, U.S. Pat. No. 6,104,443, granted to Adcock et al., shows a Suspended Television And Video Monitor. This construction relies upon a scissor gimbal mounted on a wall in combination with a ball-and-socket assembly at its remote end to support the television receiver in the desired location. SUMMARY OF THE INVENTION [0008]The present invention includes a horizontal extension arm having a vertically oriented inner end. The inner end is mounted to a base plate for rotation about a first vertical axis. The base plate is conveniently secured to a support structure, such as an armchair, a desk, or other room furniture. The extension arm also has an outer end which is remote from the inner end. As the inner end is rotated about its axis, the extension arm may be adjustably located through an arc lying in a horizontal plane. [0009]A head assembly, comprised of a lower disc and an upper disc, is also provided. The lower disc is attached to the outer end of the extension arm. The lower disc includes an upper surface, having a centrally positioned, circular raised portion. The upper disc includes a lower surface having an outer ring and an inner circular recess adapted for mating engagement with the upper surface of the lower disc. The upper disc is mounted to the lower disc for rotation about a second vertical axis, with their respective surfaces in rotatable sliding engagement. [0010]A first clevis is secured to the top side of the upper disc. The first clevis includes a first clevis pin assembly passing through the lower end of a connection arm about a first horizontal axis. Adjustable locking means are provided in the first clevis pin assembly to interlock the first clevis with the connection arm in a selected rotational position about the first horizontal axis. [0011]The upper end of the connection arm is secured to a second clevis with a second clevis pin about a second horizontal axis. The second clevis is mounted to a monitor plate which supports the video monitor and other accessories, such as a loudspeaker. [0012]A keyboard plate is attached to the movable portion of a pivot bracket about a third horizontal axis. The fixed portion of the bracket, in turn, is attached to the underside of the lower disc. The angle of the keyboard plate determines the angular disposition of a computer keyboard resting upon the plate. BRIEF DESCRIPTION OF THE DRAWINGS [0013]FIG. 1 is a perspective view of the adjustable support arm for a computer video monitor of the present invention being used in conjunction with a reclining chair; [0014]FIG. 2 is a perspective view taken from the rear, showing the video monitor plate attached to a flat screen video monitor and a loudspeaker, and a keyboard plate depending from the underside of the support arm; [0015]FIG. 3 is a perspective view taken from the front, with the video monitor, loudspeaker, and keyboard plate being removed for clarity; [0016]FIG. 4 is a side elevational view of the support arm, showing the connection arm and video monitor plate being rotatably adjustable through an arc about a first horizontal axis; [0017]FIG. 5 is a fragmentary perspective view of the head assembly, showing the first clevis pin assembly being translated into a disengaged position in preparation for adjustment of the connection arm; [0018]FIG. 6 is a view as in FIG. 5, but with the first clevis pin assembly disengaged and the connection arm being rotatable through an arc; [0019]FIG. 7 is a fragmentary side elevational view of the support arm, showing the video monitor plate independently being rotatably adjustable through an arc about a second horizontal axis; [0020]FIG. 8 is a top plan view, showing the extension arm being rotated about the first vertical axis into a selected position; Continue reading about Adjustable support arm for video monitor... Full patent description for Adjustable support arm for video monitor Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Adjustable support arm for video monitor patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Adjustable support arm for video monitor or other areas of interest. ### Previous Patent Application: Shelf stand assembly Next Patent Application: Monitor stand Industry Class: Supports ### FreshPatents.com Support Thank you for viewing the Adjustable support arm for video monitor patent info. 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