Patents Represented by Law Firm Parmelee, Bollinger & Bramblett
  • Patent number: 5480252
    Abstract: A coupling mechanism for quickly coupling a rotor body to its drive and driven journals and obtaining radial and axial alignment thereof in a closely confined space is provided. The coupling mechanism includes a split ring collar and a clamping ring securely holding in appropriate placement a chamfered split ring for radially and axially aligning the rotor and the journals, referred to as co-axial alignment.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: January 2, 1996
    Assignee: Farrel Corporation
    Inventors: Douglas W. Poscich, Douglas E. Mosher
  • Patent number: 5480122
    Abstract: A trouble-shooting shut-off valve includes an inlet-tail-tube mountable directly into a compression-fitting outlet socket of a defective shut-off valve, thus positioning the trouble-shooting valve immediately downstream from the defective valve in line in series with the defective valve. An inlet-tail-tube fitting is mounted onto an upstream end of the valve housing as a component of the valve. This fitting has an axial bore forming an upstream extension of an inlet passage in the valve housing. The inlet-tail-tube projects axially from this fitting adapted for insertion directly into such a socket in the defective valve. The inlet-tail-tube has a diameter equal to the outside diameter of flexible plumbing tubing, referred to as flex tube, and is formed of material suitable for making a compression connection thereto. An inlet end termination of the inlet-tail-tube is flat for seating down squarely into the outlet socket of the defective valve.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: January 2, 1996
    Inventor: Paul J. Barker
  • Patent number: 5480043
    Abstract: A two-handle collar for a baby bottle for helping a baby hold and support the bottle while drinking through a nipple, wherein the bottle has a neck with a mouth at one end and a bottom at the other end. An attachment on the neck is used for mounting a nipple on the mouth. The two-handle collar includes a ring removably mountable on the neck with two handles extending from the ring in first and second directions generally radially outwardly relative to a central longitudinal axis of the bottle. These handles are angularly spaced around the axis by an angular spacing B for convenient grasping by the baby's hands positioned comfortably near opposite sides of the baby's face. Oval-shaped handles provide grasping regions spaced outwardly away from the neck of the bottle for baby's hands to hold onto these grasping regions each of which is oriented at acute angle A relative to the bottle axis. In FIG.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: January 2, 1996
    Inventor: Janice P. Wingo
  • Patent number: 5479048
    Abstract: An SOI/DI IC chip including a handle wafer in the form of a section of silicon substrate contiguous with the layer of insulation beneath the silicon slice containing the device regions separated by trenches filled with low-conductivity polysilicon dielectric. One of the trenches is etched through the layer of insulation, and the polysilicon in that trench is doped to provide desired electrical conductivity to establish electrical contact with the handle wafer. Metallization is applied over the top of this one trench to make possible electrical connection to the handle wafer from above the chip by use of conventional wiring techniques.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: December 26, 1995
    Assignee: Analog Devices, Inc.
    Inventors: Kevin Yallup, Oliver Creighton
  • Patent number: 5476642
    Abstract: Magnesium hydroxide of the formula Mg(OH).sub.2 having a crystallite size in the direction <004> greater than 150 .ANG. and smaller than 500 .ANG., an aspect ratio in the range from 2 to 5, a strain in the direction <004> not greater than 4.2.times.10.sup.-3 and a strain in the direction <110> not greater than 3.0.times.10.sup.-3. 50% of secondary particles with diameters smaller than 1.4 .mu.m and 100% of secondary particles with diameters not greater than 4.0 .mu.m, and a specific surface, determined by the BET method, smaller than 25 m.sup.2 /g. It is prepared by a two-step procedure; in the first step, magnesium nitrate is treated by an alkaline substance, preferably by ammonia, in an aqueous medium, with 1.5 to 6.0-multiple excess of ammonia, at a temperature of not more than 85.degree. C., at the atmospheric pressure, causing that basic magnesium nitrate is formed which, in the second step, decomposes at a temperature of 110.degree. to 150.degree. C.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: December 19, 1995
    Assignee: Duslo, a.s.
    Inventors: Pavol Skubla, Stefan Bezak, Ladislav Lencses, Eve Kukova
  • Patent number: 5477078
    Abstract: An ESD protective clamp device comprised of a two-terminal diode formed in an isolated chip cell. The lower part of this chip cell region contains a buried layer of silicon with P-type dopant, and the upper part is an epitaxial layer also with P-type dopant. An annular (ring-shaped) anode plug segment is formed at the outer reaches of the epitaxial layer with P+ doping. At the interior central region is an N-type plug circular in horizontal cross-section and concentric with the annular plug. This central plug serves as the cathode. Electrical connections are made to anode and cathode to provide interconnection with an IC circuit with a MOM capacitor to be protected.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: December 19, 1995
    Assignee: Analog Devices, Incorporated
    Inventors: David F. Beigel, William A. Krieger, Susan L. Feindt
  • Patent number: 5466389
    Abstract: Aqueous alkaline cleaning solutions for cleaning microelectronic substrates and maintaining substrate surface smoothness comprise a metal ion free base, a nonionic surfactant and a component to reduce or control the pH of the cleaning solution to a pH within the range of from about pH 8 to about pH 10.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: November 14, 1995
    Assignee: J. T. Baker Inc.
    Inventors: Joseph M. Ilardi, George Schwartzkopf, Gary G. Dailey
  • Patent number: 5464533
    Abstract: A filtration system removes both particulate and dissolved matter from liquid cleaning solvent. The system is enclosed within a single unit which incorporates both a positive displacement pump and a filter assembly. The filter assembly includes a two stage filter with a hollow, cylindrical, activated carbon core which is connected to the intake side of the pump.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: November 7, 1995
    Assignee: KX Industries, L.P.
    Inventor: Evan E. Koslow
  • Patent number: 5458477
    Abstract: Continuous impression forming of three-dimensional products from heated, formable thermoplastic materials between top and bottom mold carriages each having a three-dimensional forming belt mold revolvable around the carriage. Each three-dimensional forming belt mold includes a flexible silicone rubber mold adhered to a multi-ply woven fabric belt. A surface of desired shape on one revolving rubber mold mates with the desired shape of an opposed revolving rubber mold forming a continuously moving mold channel between the mold belts into which is fed hot thermoplastic material at moldable temperature. After discharging molded plastic product from the exit of the moving mold channel, localized surface heat in the rubber molds resulting from contact with hot plastic is removed by air blown directly onto the rubber mold surfaces. Each carriage frame includes a back-up plate coated with low friction coefficient material over which slides a continuously moving belt mold.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: October 17, 1995
    Assignee: Kemcast Partners-1989
    Inventors: W. James Kemerer, Clyde W. Vassar
  • Patent number: 5454815
    Abstract: A bone rasp for the working of bones said rasp having a plastic toothed working section with teeth and cutting edges and a connecting section, optionally made of plastic, for connecting the rasp to an impact tool. This rasp can be manufactured inexpensively, making possible one-time use and thereby making cleaning and sterilization of the used rasp unnecessary.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: October 3, 1995
    Assignee: IMT Integral Medizintechnik Trading AG
    Inventors: Albert Geisser, Hubertus Becker, Heinz Elmiger
  • Patent number: 5451977
    Abstract: A self-scanning light-emitting element array is disclosed. A coupled array of light-emitting elements is constituted so that a light-emitting element which is turned on influences a light-emitting element to be turned on next so that its threshold level is changed. When each element is clock-driven by a common drive pulse, the change in threshold level is shifted in the array direction, so that a turn-on operation is transferred in a clock period of the drive pulse.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: September 19, 1995
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihisa Kusuda, Kiyoshi Tone, Ken Yamashita, Shuhei Tanaka
  • Patent number: 5450084
    Abstract: A digital-to-analog converter including a plurality of binarily-weighted stages each incorporating a differential switch-pair circuit which includes two matched bipolar switch transistors the bases of which are driven by a corresponding pair of complementary signal sources. Two additional switches are included in this circuit, with each such switch being connected between a respective signal source and its corresponding transistor control electrode. These two switches are both opened before the clock-controlled activation of the complementary signal sources. A short time after such activation, sufficient to assure that the complementary signal voltages have stabilized at their new values, the two additional switches are reclosed simultaneously by a single control signal so as to effect synchronized switchover of the two switch transistors at that instant.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: September 12, 1995
    Assignee: Analog Devices, Incorporated
    Inventor: Douglas A. Mercer
  • Patent number: 5447099
    Abstract: A height adjustment mechanism for a table top generally comprises two leg assemblies each having a base and two vertical columns, a slidable post assembly on each leg assembly with the slidable post, assemblies supporting the table top, and a drive for raising and lowering the leg assemblies and supported table top. The slidable post assemblies have opposed covers which frictionally engage the vertical posts to hold the table top at an adjusted height. The drive is a lack screw and jack nut in each leg/slidable post assembly, wherein the jack screws are connected by a chain and sprocket drive and are driven by a crank.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: September 5, 1995
    Assignee: Howe Furniture Corporation
    Inventors: Alan J. Adams, Robert J. Ferraro, Richard M. LaCouture, Donald H. Eckloff
  • Patent number: 5446303
    Abstract: An integrated-circuit (IC) chip formed with a fault-protected switch comprising three MOS transistors in series. An additional MOS transistor is formed adjacent the center one of the three transistors, and is arranged such that the gates of the two transistors are connected together, the source electrodes of the two transistors are connected together, the backgates form a common region, and the drain of the additional transistor is connected to those backgates.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: August 29, 1995
    Assignee: Analog Devices, Incorporated
    Inventors: John Quill, Frank Poucher
  • Patent number: 5446322
    Abstract: A frequency-responsive integrated circuit (IC) for determining when the frequency of a clock pulse input signal is below a predetermined threshold level, the IC including a capacitor charged up at a nearly constant rate by a current source. If the capacitor voltage reaches one-third of the DC power voltage, and input pulses are received, the capacitor is discharged to start another charge-up cycle. If no input pulses were received, the capacitor continues to charge up until its voltage reaches two-thirds of the DC power voltage, at which point an output signal is produced indicating that the input frequency is below the predetermined threshold level.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: August 29, 1995
    Assignee: Analog Devices, Inc.
    Inventor: David C. Reynolds
  • Patent number: 5446302
    Abstract: A diode-connected transistor device for IC protection against electrostatic discharge (ESD) that functions as a transistor in the active region during an ESD event. The device cell includes an annular collector at the outer reaches of the cell, a circular base diffusion concentric with the collector, and an annular emitter near the outer edge of the base. The base and emitter regions are connected together by metallization external to the transistor cell. With the base contact enclosed by the annular emitter, during an ESD spike the initial reverse bias current flow is from the collector, under the emitter diffusion and out of the base contact. Eventually, as the magnitude of the ESD spike increases, the reverse biased current becomes sufficient to locally forward bias the base-emitter junction changing the primary ESD current path from collector to base, to collector to emitter, thus lowering the ESD current density in the active base-collector junction.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: August 29, 1995
    Assignee: Analog Devices, Incorporated
    Inventors: David F. Beigel, Edward L. Wolfe, William A. Krieger
  • Patent number: 5442983
    Abstract: An all-electric web feeding, cutting and sheet dispensing machine includes a bi-directional cutting knife on a reversible carriage driven by a reversible-rotation knife-drive shaft. The carriage includes a ball-bearing-wheeled linear actuator riding on the knife-drive shaft propelling the carriage along this shaft in cutting strokes in one or the other direction as this shaft is rotated in one or the other sense of rotation for cutting sheets off from a web of resilient packaging material. A combined knife-guard and clamp jaw (guard/clamp) holds the web and protects the moving knife from contact with foreign objects while the knife is traveling during each cutting stroke. At the end of each cutting stroke a cam on the knife carriage lifts the guard/clamp in readiness for feeding another length of web.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: August 22, 1995
    Inventors: Joseph J. D'Angelo, Joseph J. D'Angelo, Jr.
  • Patent number: 5442355
    Abstract: CRT control apparatus for use in high-resolution graphic display equipment of the type including a frame buffer having storage banks for storing digital signals representing the color intensities of red, green and blue colors of pixels on the CRT screen. The control apparatus is formed in a single MOS integrated-circuit (IC) chip which incorporates three multiplexers for the three 8-bit sets of color digital signals from the frame buffer. The 8-bit outputs of the multiplexers are directed to digital-signal-transformation devices which, in response to each 8-bit signal, produce a corresponding 10-bit signal incorporating the color-intensity information of the original 8-bit signal, and also incorporating a gamma correction factor for the particular intensity represented by the original 8-bit signal. The 10-bit signals are directed to 10-bit DACs, one for each color, to produce corresponding analog control signals for the corresponding electron guns of the CRT.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: August 15, 1995
    Assignee: Analog Devices, Inc.
    Inventor: Timothy J. Cummins
  • Patent number: D360990
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: August 8, 1995
    Assignee: WSC Windsurfing Chiemsee Produktions und Vertriebs GmbH
    Inventor: Mike Eskimo
  • Patent number: D361210
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: August 15, 1995
    Assignee: WSC Windsurfing Chiemsee Produktions und Vertriebs GmbH
    Inventor: Mike Eskimo