Patents Represented by Law Firm Dawson, Tilton, Fallon & Lungmus
  • Patent number: 3975001
    Abstract: A generally upright cylinder is secured at its upper neck by means of a gimbal mount; and its base is driven in circular motion at a substantially constant angular velocity. As a tube of fluid is inserted into the cylinder, the fluid is stirred by the motion of the cylinder; and the intensity of the stirring action increases with the depth to which the tube is inserted into the cylinder. An appliance removably attaches to the apparatus to provide a vibrating platform.
    Type: Grant
    Filed: October 19, 1973
    Date of Patent: August 17, 1976
    Assignee: American Hospital Supply Corporation
    Inventors: Robert R. Moore, Vincent E. Eitzen
  • Patent number: 3974336
    Abstract: A system of removing quantizing noise signals between words of an infinite-clipping speech system is disclosed.Speech signals are quantized in amplitude and in time without substantial loss of intelligibility. The speech signal and a square-wave squelch signal of relatively high frequency are added together, and the sum is amplified, clipped and quantized in time. Timing information from the quantized signal is used to detect the presence of the squelch signal. This information, together with the quantized signal is fed to a tri-level signal generator which generates a high output signal level when the speech signal is high, a low output signal level when the speech signal is low, and a zero level signal when the squelch signal is present, thereby removing all noise signals between words.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: August 10, 1976
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Edward M. O'Brien
  • Patent number: 3973912
    Abstract: A method and apparatus for determining the carbon dioxide content of micro samples of blood, serum, or other body fluid. In performing the method, a micro quantity of sample is introduced into one compartment of a double-compartmented open-topped reaction vessel, the other compartment containing a reagent capable of liberating the carbon dioxide from the sample when the two are mixed. The open top of the vessel is then sealed so that its interior communicates only with a capillary gasometer, and the contents of the vessel are then thoroughly mixed. The volume of evolved gas is measured directly from the graduated capillary gasometer by observing the extent of displacement of an indicating liquid therein. The structure of the device is described, along with the structure and method for adjusting the volume of the reaction vessel, after sealing and before mixing, to locate the meniscus of the liquid in the capillary at a selected starting point.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: August 10, 1976
    Assignee: American Hospital Supply Corporation
    Inventors: John E. Trafton, Philip E. Nichols, Royce Haynes
  • Patent number: 3972520
    Abstract: Apparatus for handling business forms in which at least three superposed continuous business form webs are processed and thereafter separated for individual folding, with certain of the webs being passed around a compound turning bar prior to folding.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: August 3, 1976
    Assignee: Paper Converting Machine Company
    Inventor: Jerry L. McKeefry
  • Patent number: 3970427
    Abstract: Blood Cells are suspended in a physiological saline solution modified by the addition of a small amount of gelatin. The presence of gelatin serves to reduce attractive forces between the blood cells and glass surfaces in testing procedures.
    Type: Grant
    Filed: March 22, 1973
    Date of Patent: July 20, 1976
    Assignee: American Hospital Supply Corporation
    Inventors: Vito M. Esposito, Stanley B. Weinstein
  • Patent number: 3967627
    Abstract: Heat transferring liquid is pumped by a peristaltic pump from a reservoir through a heat exchanger to a disposable applicator pad through flexible conduits. The heat exchanger is provided with thermoelectric diodes which, under control of electronic circuitry, may absorb heat from or transfer heat to the liquid. Further, the control circuitry permits adjustment of the temperature of the applicator pad, whether hot or cold.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: July 6, 1976
    Assignee: Moore-Perk Corporation
    Inventor: Billy E. Brown
  • Patent number: 3964811
    Abstract: A stretcher rail assembly for securing side panels and separator panels in a cabinet includes a modified C-shaped channel rail with stiffened flanges formed from light gauge metal. The forward portion of the channel has a continuous, elongated opening for permitting access to the interior of the rail in attaching the web to a wall. One of the stiffeners has an outwardly extending fastening flange adjacent the access opening, and it may be used to locate, secure, or support cabinet tops, bottoms, support bases, partition panels or casters. Each rail is provided with end spacer plates provided with top and bottom welding flanges to prevent opening of the rail under load. The spacer plates are apertured to locate a tension rod in the center of the channel and act to transmit load from the rail to the rod and thence to the cabinet walls. Projections are provided on the spacer plate weld flanges for biting into the side panels they engage to prevent rotation of the rails.
    Type: Grant
    Filed: February 20, 1975
    Date of Patent: June 22, 1976
    Assignee: E. H. Sheldon and Company
    Inventor: Robert G. McClelland
  • Patent number: 3964201
    Abstract: A device and method for baiting fishhooks wherein a tubular member receives a quantity of fish bait having a dough-like consistency to provide a plug, a fishhook being inserted into said plug and thereafter a plunger on said tubular member being actuated to simultaneously expel said plug and hook.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: June 22, 1976
    Inventors: Leo Biliunas, Allan SunPano
  • Patent number: 3964404
    Abstract: A shelf and corner post assembly wherein the shelf is adjustable into any of a variety of selected elevations. Each of the generally cylindrical corner posts is provided with one or more series of indentations adapted to receive arm portions of a U-shaped clip. A screw urges the clip into engagement with the post to clamp the post within a corner section of the perimetric frame of the shelf. A corner brace is secured to the frame and, in one form, extends horizontally between the upper and lower arms of the clip. The frame includes flanges which slope to promote drainage and edges which are spaced from the clip to prevent possible dirt accumulation and to facilitate assembly.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: June 22, 1976
    Assignee: American Hospital Supply Corporation
    Inventors: Floyd F. Mueller, William A. Gelbuda
  • Patent number: 3964215
    Abstract: In a telescoping seating system with folding handrails, the posts for the handrails are mounted to the side of the seating row sections; and the posts are inclined at an acute angle relative to the vertical. Upper and lower telescoping rail assemblies are both pivotally mounted by means of a vandalproof lock at the inner side of the posts so that the upper rail assembly is located directly above the lower one. Architectural end rails may be mounted to the top and bottom posts, if desired, using the same locking hardware.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: June 22, 1976
    Assignee: Universal Bleacher Company
    Inventors: Arlin P. Hartman, Richard A. Vance
  • Patent number: 3964981
    Abstract: An electrode for an electrochemical cell, such as may be used in polarographic measurements, is formed by vapor deposition of carbon on a tantalum substrate. It can be formed to a desired shape while retaining all the properties of the metal, and it has a large surface and is thus very sensitive. The electrode is inert, will not oxidize over a wide useful range of applied voltages, and exhibits no hysteresis effect when the polarity is reversed.
    Type: Grant
    Filed: September 20, 1973
    Date of Patent: June 22, 1976
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Henry M. Stahr
  • Patent number: 3963349
    Abstract: A method and apparatus for determining coagulation times in such clinical laboratory procedures as prothrombin time tests, activated partial thromboplastin time tests, fibrinogen determinations, factor assays for specific blood coagulation factors, and the like. A fibrous filament is drawn at a predetermined rate through a small body of liquid to be tested and the interval, from the time a suitable coagulating agent is mixed with the liquid to the time the body of liquid clings to the filament and moves with it, is precisely measured as a direct indication of actual coagulation time. The liquid body is supported upon a non-wettable inclined surface bordered by walls defining a well for receiving the liquid and a pathway for its movement. Particularly effective results are achieved by utilizing a pair of spaced filaments moving at precisely the same rate, the filaments being bridged by a web or mass of clotted liquid when coagulation occurs.
    Type: Grant
    Filed: August 27, 1974
    Date of Patent: June 15, 1976
    Assignee: American Hospital Supply Corporation
    Inventors: Bill E. Albright, Stephen M. Meginniss, III
  • Patent number: 3963550
    Abstract: A grain door and method of making the same wherein thin metallic straps having arcuate ends are partially adhesively secured to a double-face corrugated medium, and wherein the straps may be equipped with novel fittings for extension bands and are also adapted for receipt of center braces having horizontally flat tangs.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: June 15, 1976
    Assignee: Omni Corporation
    Inventors: William E. Bruning, Michael J. Ford
  • Patent number: 3961513
    Abstract: A method of making a pipe fitting having a generally T-shape wherein a solid plug of malleable metal is first deformed to provide a tube closed at one end and having a thicker wall adjacent the closed end and thereafter further deforming the tube to provide a pair of legs adjacent the one end.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: June 8, 1976
    Assignee: Elkhart Products Corporation
    Inventor: H. La Mar Stahly
  • Patent number: 3962292
    Abstract: A procedure for modifying a natural phosphatide to develop water dispersability which includes steps of acylation, hydroxylation, and neutralization.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: June 8, 1976
    Assignee: Central Soya Company, Inc.
    Inventors: Bernard F. Szuhaj, Joseph R. Yaste
  • Patent number: 3959212
    Abstract: A radio-opaque composite material for use as a dental restorative which consists essentially of a conventional polymerizable resin binder and catalysts in admixture with a finely-divided inorganic filler capable of being coupled to the binder. The filler comprises a crystalline silicate containing barium in the crystalline composition. Calcium barium silicate in crystalline form is set forth in disclosing the best known mode for practicing the invention.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: May 25, 1976
    Assignee: American Hospital Supply Corporation
    Inventors: Thomas J. Rockett, John J. O'Connell
  • Patent number: 3956674
    Abstract: A forced-air electric furnace is provided with an electric disconnect block mounted within a recess in the furnace body forming an electric box. The electric box is closed by a cover panel which includes an aperture through which a disconnect block extends to establish electrical continuity between the feed-in wires and the furnace heater coils. The plug has side shoulder areas which extend beyond the aperture in the cover panel to prevent uncovering the box without disconnecting the electricity.
    Type: Grant
    Filed: October 11, 1974
    Date of Patent: May 11, 1976
    Assignee: The Coleman Company, Inc.
    Inventor: Ray Scott Farley
  • Patent number: 3952889
    Abstract: An improved combine waste collection system includes a frame which breaks down into a forward section and a rear section. The rear section of the frame is provided with wheels, and it supports a dump wagon in which the waste is collected and stored. The forward portion of the frame is telescopically extensible, and it includes a conveyor which collects waste from the combine and carries it to a blower, operated at a higher speed, for taking the waste material from the conveyor and forcing it into the dump wagon. A modification includes a powered paddle wheel to assist in feeding larger pieces of straw or the like into the blower.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: April 27, 1976
    Assignee: Foster Manufacturing Company, Inc.
    Inventors: William C. Wanker, James J. Quinn, Fred E. Kirby
  • Patent number: 3951159
    Abstract: A tent structure includes a covering which has four upright triangular walls laid out in rectilinear relation to each other. A pair of transverse ridges are formed at the top of the tent covering. A rigid ridge pole assembly supports the covering along one of the ridges; and a flexible spreader bar assembly supports the covering along the other ridge. Four top/corner pieces of covering material are provided--one for each quadrant defined by the cross ridges. Each top/corner piece extends between adjacent ridge sections and between the inclined edges of adjacent ones of the triangular walls to complete the enclosure. The spreader bar assembly overlies and is carried by the rigid ridge pole assembly; and the tent covering is tensioned by lengthening upright support poles which support the rigid ridge pole assembly.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: April 20, 1976
    Assignee: The Coleman Company, Inc.
    Inventors: Denis W. Robinson, George B. Madison
  • Patent number: 3950564
    Abstract: A process for preparing a soy-based meat substitute characterized by relatively flat, elongated, generally longitudinally aligned fibrous masses having the appearance of stacked platelets which simulate the compactness, chewiness and texture of meat; achieved by extrusion of a soy protein-containing source material at higher moisture content and lower temperature (as contrasted to prior art), minimizing expansion with reduction of pressure in the extruder in a somewhat stepwise fashion by modifying the extruder so as to allow more shearing action and to allow space for alignment of fibrous masses.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: April 13, 1976
    Assignee: Central Soya Company, Inc.
    Inventors: Gabor Puski, Arthur H. Konwinski