I/O assembly for use with point of sale terminals and other computing systems

Claim 2

A bearing comprising: a cylindrical member having on one end tabs for providing retention and rotation indexing to a first structure mounted on said one end and, disposed relative to another end on an inside surface of said cylindrical member, snap fingers for coacting with a second structure on which said bearing is mounted to prevent the bearing from rotating relative to the second structure and stop means for limiting rotation of the first structure molded on said one end.

Claim 3

A support assembly comprising: a unified support arm having a vertical section and a non-articular cantilever section, with said vertical section being rigidly connected to the non-articulate Cantilever section; a base; a device mount for supporting a device; a first means for providing rotary motion coupling the vertical section of the unified arm to the base; a second means for providing rotary motion, swivel motion and tilt motion coupling the device mount to the non-articulate cantilever section of the arm; and said second means including a hole fabricated in the cantilever section, said hole having a circular ridge and a traverse ridge upstanding from the circular ridge; a spherical surface machined on an underside of the device mount and oval shaped opening machined in the device mount; and a retainer means for inserting in the hole and the oval shaped opening to hold the device mount firmly against the cantilever section; said retainer means having a plurality of downwardly extending snap fingers with elements on the extremities of each snap finger which hook onto an under surface of the circular ridge and prevent the retainer means from dislodging from the hole and a modified extending snap finger which rides on an opposite surface of the circular ridge and coact with the traverse ridge to stop circular motion of said retainer means.

Claim 4

A support assembly comprising: a unified support arm having a vertical section and a non-articular cantilever section, with said vertical section being rigidly connected to the non-articulate Cantilever section; a base; a device mount for supporting a device; a first means for providing rotary motion coupling the vertical section of the unified arm to the base; a second means for providing rotary motion, swivel motion and tilt motion coupling the device mount to the non-articulate cantilever section of the arm; and said second means including a hole fabricated in the cantilever section, said hole having a circular ridge and a traverse ridge upstanding from the circular ridge; a spherical surface machined on an underside of the device mount and oval shaped opening machined in the device mount; and a retainer means for inserting in the hole and the oval shaped opening to hold the device mount firmly against the cantilever section; said retainer means having a plurality of downwardly extending snap fingers with elements on the extremities of each snap finger which hook onto an under surface of the circular ridge and prevent the retainer means from dislodging from the hole and a modified extending snap finger which rides on an opposite surface of the circular ridge and coact with the traverse ridge to stop circular motion of said retainer means.