BRIAN MORRIS
Physical Therapy at Portsmouth St, Houston, TX

5238372, Aug 24, 1993

Dec 29, 1992

7/998062

Brian G. Morris - Houston TX

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

F04B 3500

417393

A hydraulically powered gas compressor receives low pressure gas and outputs a high pressure gas. The housing of the compressor defines a cylinder with a center chamber having a cross-sectional area less than the cross-sectional area of a left end chamber and a right end chamber, and a spool-type piston assembly is movable within the cylinder and includes a left end closure, a right end closure, and a center body that are in sealing engagement with the respective cylinder walls as the piston reciprocates. First and second annular compression chambers are provided between the piston enclosures and center housing portion of the compressor, thereby minimizing the spacing between the core gas and a cooled surface of the compressor. Restricted flow passageways are provided in the piston closure members and a path is provided in the central body of the piston assembly, such that hydraulic fluid flows through the piston assembly to cool the piston assembly during its operation. The compressor of the present invention may be easily adapted for a particular application, and is capable of generating high gas pressures while maintaining both the compressed gas and the compressor components within acceptable temperature limits.

5063734, Nov 12, 1991

Jan 26, 1990

7/470480

Brian G. Morris - Houston TX

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

F02K 958

60204

In the representative embodiment of the new and improved methods and apparatus disclosed herein to provide effective real-time management of a spacecraft rocket engine powered by gaseous propellants, real-time measurements representative of the engine performance are compared with predetermined standards to selectively control the supply of propellants to the engine for optimizing its performance as well as efficiently managing the consumption of propellants. A priority system is provided for achieving effective real-time mangagement of the propulsion system by first regulating the propellants to keep the engine operating at an efficient level and thereafter regulating the consumption ratio of the propellants. A lower priority level is provided to balance the consumption of the propellants so significant quantities of unexpended propellants will not be left over at the end of the scheduled mission of the engine.

5232013, Aug 3, 1993

Jun 22, 1992

7/902266

Brian G. Morris - Houston TX

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

F16K 1506

1375147

An inline check valve for a flow line where the valve element is guided for inline travel forward and rearward of a valve sealing member and is spring biased to a closed sealing condition. One of the guides for the valve element includes a dashpot bore and plunger member to control the rate of travel of the valve element in either direction as well as provided a guiding function. The dashpot is not anchored to the valve body so that the valve can be functional even if the plunger member becomes jammed in the dashpot.

5320136, Jun 14, 1994

Mar 19, 1993

8/038748

Brian G. Morris - Houston TX
Richard J. Bozeman - Dickinson TX

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

F16K 1502

137528

A magnetically operated check valve is disclosed having, in one aspect, a valve body and a movable poppet disposed therein, a magnet attracting the poppet to hold the valve shut until the force of fluid flow through the valve overcomes the magnetic attraction and moves the poppet to an unseated, open position; the poppet and magnet configured and disposed to trap magnetically attracted particulate and prevent it from flowing to a valve seating region.