1
David S Register: Hand held computer with dual display screen orientation capability controlled by toggle switches having first and second non-momentary positions. Dell USA, Henry N Garrana, Mark P Kahler, Michelle M Turner, August 26, 1997: US05661632 (368 worldwide citation)

A handheld computer has a generally rectangular housing on a front side wall of which a display screen is operatively mounted. A row of toggle switches is also mounted on the front housing side wall, adjacent the display screen, the toggle switches being operatively connected to the computer circuit ...


2
Thomas H Zimmerman, Julian J Pop, Joseph L Perkins: Down hole tool for determination of formation properties. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, August 29, 1989: US04860581 (281 worldwide citation)

The apparatus of the present invention relates to a down hole tool capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool incorporates the features of a staddle packing to allow formation fluid specimens to be taken at large flo ...


3
Thomas H Zimmerman, Julian J Pop, Joseph L Perkins: Down hole method for determination of formation properties. Schlumberger Technology Corporation, Henry N Garrana, Frederic C Wagret, June 26, 1990: US04936139 (230 worldwide citation)

The apparatus of the present invention relates to a down hole tool capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool incorporates the features of a straddle packer to allow formation fluid specimens to be taken at large flo ...


4
Anthony F Veneruso: Apparatus for electromagnetically coupling power and data signals between a first unit and a second unit and in particular between well bore apparatus and the surface. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, February 13, 1990: US04901069 (227 worldwide citation)

In the representative embodiment of the new and improved apparatus disclosed herein, the apparatus, including a core of a specific material, couples a first unit to a second unit. The first unit may, for example, be a downhole tool, the second unit being surface equipment. The first unit may also be ...


5
Anthony F Veneruso: Apparatus for electromagnetically coupling power and data signals between well bore apparatus and the surface. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, February 21, 1989: US04806928 (199 worldwide citation)

In the representative embodiment of the new and improved apparatus disclosed herein, a downhole tool adapted to be coupled in a pipe string and positioned in a well bore is provided with one or more electrical devices cooperatively arranged to receive power from surface power sources or to transmit ...


6
John J Pearce: Apparatus and method for limiting access to mass storage devices in a computer system. Dell USA, Mark P Kahler, Henry N Garrana, Diana L Roberts, August 12, 1997: US05657445 (148 worldwide citation)

A computer system is provided with the capability of protecting portions of the mass storage media therein from unauthorized access. The mechanism employed to protect portions of the mass storage media is advantageously operating system independent. Thus, the protection mechanism functions regardles ...


7
R Steven Mills: Plenum bypass serial fan cooling subsystem for computer systems. Dell USA, Henry N Garrana, Mark P Kahler, Michelle M Turner, November 5, 1996: US05572403 (140 worldwide citation)

A cooling subsystem and method for a chassis of a computer system. The cooling subsystem comprises: (1) first and second cooling fans having first and second motors associated therewith for driving the first and second cooling fans, respectively and (2) a common plenum substantially shrouding and pr ...


8
David L Moss, Richard S Mills: Serial fan cooling subsystem for computer systems. Dell USA, Henry N Garrana, Mark P Kahler, Michelle M Turner, August 13, 1996: US05546272 (133 worldwide citation)

A cooling subsystem and method for a chassis of a computer system. The cooling subsystem comprises: (1) first and second cooling fans having first and second motors associated therewith for driving the first and second cooling fans, respectively and (2) a common plenum substantially shrouding and pr ...


9
James M Upchurch: Well tool control system and method. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, January 10, 1989: US04796699 (127 worldwide citation)

In accordance with illustrative embodiments disclosed herein, a formation testing tool suspended in a well on a pipe string includes a valve actuator control system which responds to a command signal having a certain signature. The command signal is applied at the surface to the well annulus, and in ...


10
Victor K Pecone, Russell C Smith, Jay R Lory: Computer system modular add-in daughter card for an adapter card which also functions as an independent add-in card. Dell USA, Henry N Garrana, Mark P Kahler, Diana L Roberts, March 11, 1997: US05611057 (125 worldwide citation)

A daughter card for mounting to an adapter card, wherein the daughter card includes adapter card connectors for mounting to the adapter card and also an edge connector for insertion directly into a computer slot so that the daughter card may also function as a stand-alone card. The daughter card is ...