Jeffrey P Baker, Duong T La, Randy A Coverstone: Thermal ink jet pen body construction having improved ink storage and feed capability. Hewlett Packard Company, William J Bethurum, September 13, 1988: US04771295 (449 worldwide citation)

The novel pen body construction described herein includes multiple ink storage compartments communicating with a multi-orifice printhead, and these compartments are adapted to receive sections of ink-storage foam. Preferably, this foam is a reticulated polyurethane foam of controlled porosity and ca ...

Larry D Monroe, William P Wood: Abrasive grits formed of ceramic containing oxides of aluminum and yttrium, method of making and using the same and products made therewith. Minnesota Mining and Manufacturing Company, Donald M Sell, Richard Francis, September 13, 1988: US04770671 (247 worldwide citation)

Ceramic abrasive grits comprising alpha alumina and at least about 0.5 percent by weight yttria are prepared by mixing an aqueous dispersion of alpha alumina monohydrate and yttrium compound, gelling the resultant mixture, drying the gel to produce a dried solid, crushing the dried material to produ ...

Paul Baran, Charles M Corbalis, Brian D Holden, Jon K Masatsugu, Lewis J Marggraff, David P Owen, Peter W J Stonebridge: Synchoronous packet voice/data communication system. StrataCom, Townsend and Townsend, September 13, 1988: US04771425 (247 worldwide citation)

A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. An apparatus is coupled to multiplex standard ...

Willaim New Jr, James E Corenman: Calibrated optical oximeter probe. Nellcor Incorporated, Thomas L Giannetti, Jeffrey H Ingerman, September 13, 1988: US04770179 (232 worldwide citation)

A probe apparatus for use with an optical oximeter is disclosed. A pair of light emitting diodes emit light of known narrow wavelengths through an appendage of a patient onto a photosensor. A resistor of coded known resistance is used to enable the oximeter to calculate the co-efficient of extinctio ...

Steven C Meyerson: Bonded panel interlock device. Structural Panels, Herbert W Larson, September 13, 1988: US04769963 (232 worldwide citation)

A building panel providing for structural and insulating integrity between adjacent modular construction panels is formed from two sheets of thin metal bonded to a styrofoam core. One longitudinal edge of the panel has a first pair of shaped ramp and groove interlock elements with a shaped wedge of ...

Peter R Cavanagh: Computer shoe system and shoe for use therewith. Puma Aktiengesellschaft Rudolf Dassler Sport, Sixbey Friedman Leedom & Ferguson, September 13, 1988: US04771394 (190 worldwide citation)

A pair of running shoes provided with a housing at the heel thereof, into one of which an electronic device is removably mounted. The electronic device comprises a normally open inertia switch for producing a footstrike count, an oscillator crystal for providing a stopwatch function, a sound generat ...

Mahshad Koohgoli, Bambino Fatica: Private cellular system. Northern Telecom, Robert C Hogeboom, September 13, 1988: US04771448 (187 worldwide citation)

A cellular mobile radio communication (e.g. telephone) system (hereinafter referred to as a private cellular system, PCS) that does not have the constraint of being a well defined, pre-planned system. The present invention differs from previous systems largely by the fact that it does not have to be ...

Lionel Hoffman: Card shuffler. Golden Nugget, Brumbaugh Graves Donohue & Raymond, September 13, 1988: US04770421 (186 worldwide citation)

A card shuffler has a plurality of vertically stacked mixing pockets for holding cards. A first vertically traveling elevator holding cards to be shuffled distributes cards one at a time in sequence to the mixing pockets in accordance with a first distribution schedule. A second vertically traveling ...

Jean B Hugues, Lynn Weber, James E Herlinger, Katsuhito Nishikawa, Donald L Schuman, Gary W Yee: Method and apparatus for transferring wafers between cassettes and a boat. Silicon Valley Group, Donald C Feix, September 13, 1988: US04770590 (173 worldwide citation)

A wafer transfer mechanism used for transferring wafers between cassettes and a boat uses sensors to detect and to measure any offset of the actual center of each wafer being transferred with respect to the expected or precalibrated center of that wafer. An appropriate adjustment is made to effectiv ...

John C Schmoegner, Charles B Swenson, J Miles Branagan: Anaesthetic mask. MDT Diagnostic Company, Trask Britt & Rossa, September 13, 1988: US04770169 (171 worldwide citation)

The present invention provides an improved anaesthetic scavenging face mask having a scavenging channel running along the perimeter of the mask. The mask is provided with an anaesthetic gas inlet and a vacuum outlet. The scavenging channel is connected to the vacuum outlet.