ROBERT LANDON MCMAHAN
Pilots at Buttercup Crk Blvd, Cedar Park, TX

6578013, Jun 10, 2003

Nov 17, 1999

09/441982

Rose King Davis - Austin TX
Robert L. McMahan - Cedar Park TX
John Pate - Austin TX

Dell USA, L.P. - Round Rock TX

G06F 1760

705 26, 705 28

A system includes a computing device for storing criteria under which a customer is authorized to purchase a physical item. The computing device receives a request from the customer. In response to the request satisfying the stored criteria, the computing device outputs a signal for purchasing the physical item. The stored criteria may include a monetary budget for purchasing the physical item. The computing device is for modifying the stored criteria to reduce the monetary budget in response to the signal.

5935244, Aug 10, 1999

Jan 21, 1997

8/786057

N. Deepak Swamy - Austin TX
Robert L. McMahan - Cedar Park TX

Dell USA, L.P. - Round Rock TX

G06F 1214, G06F 300, G06F 1300, G06F 1500

713200

The present invention provides a personal computer system for receiving and retaining data and capable of securing data retained within the system against unauthorized access. More particularly, the system includes a computer including a processor and a detachable input/output (I/O) device that functions as a conventional computer interface when docked to the computer and wherein the computer system enters a suspend mode when the detachable I/O device is detached from the computer whereby the system data is secured against unauthorized access. A security module controls access to at least certain levels of data retained within the system by distinguishing between the detachable I/O device docked to the computer and the detachable I/O device detached from the computer. A docking station is coupled to the processor and is detachably coupled to the detachable I/O device. The detachable I/O device is, for example, a detachable trackpad or trackball I/O device and the docking station includes a sensor for detecting when the detachable I/O device is docked to the computer.

5500789, Mar 19, 1996

Dec 12, 1994

8/354344

Kevin L. Miller - Austin TX
Robert L. McMahan - Cedar Park TX
Todd W. Steigerwald - Austin TX

Dell USA, L.P. - Austin TX

H05K 900

361816

Transverse electromagnetic mode (TEM) radiation emitted from a side edge portion of a circuit board substrate portion during operation of the circuit board is intercepted by a specially designed shield structure carried by the substrate side edge portion, and the intercepted radiation is conductively returned to the substrate ground plane, through a relatively short grounding path, for return to the emitting source(s). In one form thereof, the shield is a copper plating material extending along and covering the substrate side edge portion and adjacent peripheral portions of the opposite sides of the substrate. In another form thereof, the shield is a snap-on metal shield structure that is removably mounted around the substrate side edge portion. The shield may be electrically coupled to the substrate ground plane by directly contacting a ground plane edge portion with the copper plating, using a filter structure to couple the shield to the ground plane, or otherwise using an external grounding path. When the shield is formed by using a copper plating, the shield may also be used as a grounding connection by sliding it into a metal chassis support rail structure.

7682680, Mar 23, 2010

Jan 17, 2008

12/016198

Robert L. McMahan - Cedar Park TX, US

Let's Gel, Inc. - Austin TX

B32B 1/04, B32B 3/02

428 76, 428 71, 428102, 428193, 428194, 5420, 5417

A method and apparatus are disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material that exhibits a first durometer. The method employs a frame assembly that receives a flexible support sheet. The frame assembly includes an aperture that receives a layer of heated liquid gel which cools to form the layer of resilient gel material exhibiting the first durometer. In one embodiment, a barrier layer exhibiting a second durometer is situated on the gel layer that exhibits the first durometer. In one embodiment, the barrier layer prevents the flow of oils from the gel layer to a flexible base sheet disposed on the barrier layer. In another embodiment, the flexible base sheet may exhibit a second durometer. In either embodiment, the layers exhibiting the first and second durometer cooperate to influence the feel of the mat to the user.

6035350, Mar 7, 2000

Jan 21, 1997

8/787500

N. Deepak Swamy - Austin TX
Robert L. McMahan - Cedar Park TX

Dell USA, L.P. - Round Rock TX

G06F 3033

710 73

A trackpad or other input/output device is detachable from a computer and adapted with a remote communication functionality using radio frequency (RF) or infrared (IR) technologies, thereby facilitating the performance of slide presentations and other graphic displays. A remote presentation capability allows a computer user to conveniently address a group from a position at a suitable location, such as a podium, that is removed from the computer system. A remote interface includes a trackpad or other input/output device and activation buttons. The input/output device is housed in a small removable enclosure which is adapted for docking into an aperture in the computer. The input/output device is rechargeable with a charger installed into the computer so that the input/output device is recharged during docking with the computer. A portable computer includes a removable input/output (I/O) device that functions as a conventional computer interface when docked to the portable computer and functions as a remote control for controlling operations of the portable computer when the I/O device is removed from the portable computer. The removable I/O device includes one or more activation buttons for usage in controlling operations such as the display operations of an audio-visual presentation.

5596481, Jan 21, 1997

Aug 7, 1995

8/511948

Peter M. Liu - Austin TX
Robert L. McMahan - Cedar Park TX

Dell USA, L.P. - Austin TX

G06F 116, H05K 716

361683

The present invention provides a portable computer having a palm rest integrated therein that allows the user to maintain a wrist-neutral position when using the portable computer. The portable computer comprises a computer chassis having a side wall adjoining a bottom that forms a footprint of the chassis, a keyboard positioned toward a rear end of the chassis, and a cover member covering a portion of an interior of the chassis. The portable computer further includes a palm rest integrated into the structure of the portable computer's chassis. The palm rest is comprised of a palm support that has front and rear ends and that is pivotable with respect to the chassis between a covering position and an elevated first palm support position. The palm support is pivotable about a hinge, that couples the palm support to the chassis. The palm rest further includes an adjustable extension structure having a first end coupled to the palm support and a second end coupled to a wall of the chassis.

7219377, May 22, 2007

Jun 15, 2006

11/454024

Robert L. McMahan - Cedar Park TX, US

Barton Medical Corporation - Austin TX

A61G 7/10

5 811R, 5 881

Disclosed is a method for using a bedstead board attached to a bed to support a roller of a patient transport system. A recess extends into the bedstead board and is spaced a distance from the side of the board. The recess retains a roller sufficiently to withstand forces acting upon the roller.

7754127, Jul 13, 2010

Sep 30, 2006

11/537648

Robert L. McMahan - Cedar Park TX, US

Let's Gel, Inc. - Austin TX

B32B 37/00, B29C 65/00

264261, 264248, 264299, 264138, 156292

A method and apparatus are disclosed for fabricating an anti-fatigue mat that employs a layer of resilient gel material. The method employs a frame assembly that receives a flexible sheet to form the base sheet of the mat. In one embodiment, the frame assembly includes a movable frame member having an angled aperture for controlling the geometry of the gel layer when heated gel is dispensed into the aperture. In one embodiment, the frame assembly receives another flexible sheet disposed on the gel layer to form the support sheet of the mat. In one embodiment, the frame assembly may further include a cooling channel for convective or liquid cooling of liquid gel dispensed into a gel receiving cavity formed by the aperture.

5832282, Nov 3, 1998

Jan 2, 1997

8/778408

John Pate - Austin TX
Robert L. McMahan - Cedar Park TX

Dell U.S.A., L.P. - Austin TX

G06F 126

39575001

Apparatus and method for insuring that a computer is in battery swap mode before a battery thereof is hot swapped by a user is described. A switch is located under the battery receptacle cover, which switch is actuated by the removal of the battery receptacle cover in an amount sufficient to expose the switch. Actuation of the switch generates a battery swap mode ("BSM") signal to the CPU, causing the computer to operate in battery swap mode, at which point the battery may be safely removed without risk of losing data stored in DRAM.

6851141, Feb 8, 2005

May 28, 2003

10/447048

Robert L. McMahan - Cedar Park TX, US

A47G009/06, B32B003/06

5420, 5417, 428 71, 428 76, 428102, 428193, 428194

A resilient mat is disclosed which provides cushioning and comfort to users standing thereon or otherwise contacting the mat. The mat includes a resilient gel inner layer surrounded by a support ring to which an upper cover member and a lower cover member are attached. The support ring exhibits stiffness greater than the stiffness of the upper and lower cover members so that adherence of the upper and lower cover members to the support ring is enhanced even after prolonged use. The upper and lower cover members can exhibit the same or different colors in particular embodiments. The upper and lower cover members also can exhibit anti-slip properties in selected embodiments.