L Warren Collier IV, Steven R Stopper: Low stress relaxation composite elastic material. Kimberly Clark Corporation, Karl V Sidor, December 8, 1992: US05169706 (290 worldwide citation)

A composite elastic material having a stress relaxation of less than about 30 percent is composed of at least one elastic sheet formed from a blend of (1) a styrene-poly(ethylene-propylene)-styrene thermoplastic elastomeric block copolymer or a mixture of styrene-poly(ethylene-propylene)-styrene and ...

James D Blair, Kenneth Dircks: Method and apparatus for monitoring fuel cell performance. Minister of National Defence of Her Majesty s Canadian Government, McAndrews Held & Malloy, December 8, 1992: US05170124 (264 worldwide citation)

A method and apparatus for monitoring the performance of fuel cells arranged in series. More particularly, the method and apparatus involve the measurement and comparison of fuel cell performance indicators, such as voltage, in groups of cells connected in series. In a first embodiment, the voltage ...

Chandrasekaran Mohan, Ronald L Obermarck, Richard K Treiber: Concurrently applying redo records to backup database in a log sequence using single queue server per queue at a time. International Business Machines Corporation, Baker Maxham Jester & Meador, December 8, 1992: US05170480 (256 worldwide citation)

Change processing of a replica database is accomplished by separating redo records obtained from the transaction log of a primary database into respective queues. The redo records are separated such that all transaction records for a unit of transfer (page) of the primary database are placed on the ...

Joachim Muhling, Theodor Lutze, Hans Pistner, Achim Hurst: Bone screw. Aesculap, Barry R Lipsitz, December 8, 1992: US05169400 (248 worldwide citation)

In order to reduce the risk that a bone screw, in particular one made of resorbing plastic material, with an externally threaded shaft will be destroyed by high screw-in torques, it is proposed that an insertion channel open at the top, arranged concentrically with the shaft and extending along most ...

Thomas W DeMond, E Earle Thompson: Multi-frequency two dimensional display system. Texas Instruments Incorporated, Julie L Reed, James C Kesterson, Richard L Donaldson, December 8, 1992: US05170156 (247 worldwide citation)

A digitized video system having a display including one or more multi-frequency sensitive materials and a spatial lighy modulator simultaneously directing a plurality individual beams from an energy source onto the display.

Louis S McTamaney, Yue M Wong, Rangasami S Chandra, Robert A Walker, Jorge E Lastra, Paul A Wagner, Uma K Sharma, Clyde D Watson: Multi-purpose autonomous vehicle with path plotting. FMC Corporation, Michael Lee, R C Kamp, R B Megley, December 8, 1992: US05170352 (246 worldwide citation)

An autonomous vehicle for operating in a predetermined work area while avoiding both fixed and moving obstacles. A plurality of laser, sonic and optical sensors detect targets and obstacles in the work area and provide coded signals to processors and controllers which direct the vehicle over a most ...

George L Stegemeier, George E Perry: Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation. Shell Oil Company, Del S Christensen, December 8, 1992: US05168927 (235 worldwide citation)

A method is disclosed for providing sharp breakthrough of tracers in a two-well tracer test by injecting a relatively small volume of tracer at a high rate into a temporary injection well, and utilizing the flow induced by producing wells to transport the tracers across the formation to a producing ...

Clifford M Gross, Jose Banaag, Ravi Goonetilleke, Chandra Nair: Feedback system for load bearing surface. Biomechanics Corporation of America, Marmorek Guttman & Rubenstein, December 8, 1992: US05170364 (228 worldwide citation)

An electronic system for adjusting a load bearing surface such as a chair or bed to provide a desired level of comfort comprises an array of pressure sensors located within the load bearing surface. The pressure sensors generate data indicating the actual distribution of pressure exerted by a user o ...

Edward D Krent, Nicholas B Paffett: Body protective device. Wolf Greenfield & Sacks, December 8, 1992: US05168576 (198 worldwide citation)

Protective body padding comprising a plurality of foam modules interconnected by a membrane. The foam modules and/or membrane have a plurality of perforations extending completely therethrough and a matrix of interconnecting air channels designed to provide breathability and cooling capacity to allo ...

Bruce B Becker, William A Berthiaume: Method and catheter for dilatation of the lacrimal system. Bruce B Becker, Charles H Schwartz, Ellsworth R Roston, December 8, 1992: US05169386 (195 worldwide citation)

A dilation catheter having an inflatable member and an element for retaining a curved shape, and a method of using same to restore patency to an obstructed portion of the lacrimal system. The catheter is inserted into the lacrimal system and the inflatable member is positioned in the obstructed port ...