1
David W Appel, Michael T Morman: Method for forming nonwoven webs. Kimberly Clark Corporation, William D Herrick, Wendell K Fredericks, Howard Olevsky, July 20, 1982: US04340563 (1019 worldwide citation)

An improved method and apparatus for forming nonwoven webs by spinning filaments into a quench chamber where they are contacted with a quenching fluid, then utilizing the quench fluid to draw the filaments through a two-dimensional nozzle spanning the full machine width, and collecting the filaments ...


2
Keith M Johnson: Dynamic annulus heart valve and reconstruction ring. Medtronic, Joseph F Breimayer, John L Rooney, Carl A Forest, July 20, 1982: US04339831 (400 worldwide citation)

A synthetic leaflet aortic and mitral heart valve for use in replacement of diseased natural heart valves having a flexible, curved framework, a flexible membrane attached to the framework and fixation means for attaching the valve to the tissue annulus. The framework consists of at least three curv ...


3
Harry Lerner, Jose D Giner, John S Soeldner: Glucose sensor. Joslin Diabetes Center, July 20, 1982: US04340458 (285 worldwide citation)

Glucose sensing apparatus for use in biological fluids comprising an electrode and a voltage source connected to the electrode to cause a current to flow therethrough, in which the voltage applied to the electrode is varied in a sweep ranging from a first limit to a second limit and back toward the ...


4
Dominick J Savino: Staple and anviless stapling apparatus therefor. Hedman Casella Gibson & Costigan, July 20, 1982: US04340331 (263 worldwide citation)

A staple for use in conjunction with an anviless stapling apparatus of generally U-shaped plan form configuration where the width of each end of the crown portion of the staple in a direction orthogonal to the plane of the staple is less than the effective width of the associated leg portions of the ...


5
David B Pall: Process for preparing hydrophilic polyamide membrane filter media and product. Pall Corporation, July 20, 1982: US04340479 (252 worldwide citation)

A process is provided for preparing skinless hydrophilic alcohol-insoluble polyamide membranes by preparing a solution in a polyamide solvent of an alcohol-insoluble polyamide resin having a ratio CH.sub.2 :NHCO of methylene CH.sub.2 to amide NHCO groups within the range from about 5:1 to about 7:1 ...


6
Marion F Rudy: Diffusion pumping apparatus self-inflating device. Bernard Kriegel, July 20, 1982: US04340626 (219 worldwide citation)

An elastomeric enclosure is initially inflated to a desired pressure by a gas having large molecules incapable of diffusing outwardly from the enclosure, except at a relatively slow rate. When the enclosure is surrounded by ambient air at atmospheric pressure, such air passes into the enclosures by ...


7
Allen L Cohen: Phase shift multifocal zone plate. July 20, 1982: US04340283 (176 worldwide citation)

A multifocal zone plate construction suitable for use in optical systems with multifocal requirements. It is designed as a phase shift multifocal zone plate to provide multiple focii with bright images. This is accomplished by adjusting the zone plate spacings such that some of the zone plate focii ...


8
George R Koch: Adjustable electrode plasma processing chamber. Lam Research Corporation, Thomas E Schatzel, July 20, 1982: US04340462 (157 worldwide citation)

A plasma processing chamber incorporating parallel plate electrodes whose separation may be mechanically adjusted from the outside thereof. The chamber includes a sealable assembly including an electrode housing and a reaction chamber body. The body includes an aperture to receive a planar surfaced ...


9
Shigeji Obayashi, Morio Nakamura, Koichi Fujiki, Takushi Yamamoto: Alkali metal acrylate or ammonium acrylate polymer excellent in salt solution-absorbency and process for producing same. Seitetsu Kagaku, Pollock Vande Sande & Priddy, July 20, 1982: US04340706 (153 worldwide citation)

An alkali metal acrylate polymer obtained by suspending an aqueous solution of acrylic acid and an alkali metal acrylate in an alicyclic or aliphatic hydrocarbon solvent containing a surfactant having an HLB value of 8-12 and subjecting the suspension to inverse suspension polymerization in the pres ...


10
Robert Bauer: System for the determination of glucose in fluids. Miles Laboratories, Jerome L Jeffers, July 20, 1982: US04340669 (151 worldwide citation)

The present invention involves an improved test system for the determination of glucose in aqueous fluids of the type which comprises glucose oxidase, a peroxidatively active substance and chromogen. The improvement involves the use of m-anisidine as a chromogen which permits the semi-quantitative d ...