Patents Represented by Attorney Garrettson Ellis
  • Patent number: 4764290
    Abstract: Hydrophilic dye is added to oil for providing identification to the oil. The dye is dispersed in the oil in the form of polymolecular particles less than 1 mm. in diameter, for example, as an emulsion. Accordingly, the sample of oil may be exposed to a polar solvent for the dye particles, to cause the dye particles to dissolve in the polar solvent to exhibit an intensified color, when compared with the particles in the oil.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: August 16, 1988
    Assignee: National Identification Laboratories, Inc.
    Inventor: William C. Currey
  • Patent number: 4756552
    Abstract: A vehicle having a steering system controlled by either of a pair of steering wheels also includes first and second steering wheel shafts means, each carrying one of the steering wheels. A wheel steering mechanism is mechanically connected to the first and second steering wheel shafts means. In accordance with this invention, a third shaft is attached at one end to the first steering wheel shafts means. The third shaft means is connected at its other end without intermediate, intervening gears to a gear for rotationally interconnecting the third shaft, the second steering wheel shaft, and the wheel steering mechanism. This structure can eliminate an expensive 90 degree gear box when compared with prior art designs, for significant cost savings while providing equivalent or superior function.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: July 12, 1988
    Assignee: Elgin Sweeper Company
    Inventors: Mario J. Martinez, Roy F. Engelbrecht
  • Patent number: 4756865
    Abstract: A mold, typically an injection mold, comprises a cavity member and a core member relatively movable between open and closed positions to define a first parting line and a molding chamber between the core and cavity members in the closed position. A sprue aperture is provided, communicating with the molding chamber to provide molding compound to the chamber. In accordance with this invention the cavity member defines forward and rearward portions movable between open and closed positions and proportioned whereby objects molded in the molding chamber can be removed from between the forward and rear portions when the cavity member is in its open position.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: July 12, 1988
    Inventor: John W. von Holdt
  • Patent number: 4753415
    Abstract: A mold comprises a pair of openable and closeable mold halves separable along a parting line. By this invention, each mold half defines a recessed outer surface portion which communicates with the recessed portion of the other mold half in the closed position. Each mold half defines a bridge portion which extends over its recessed portion and is positioned adjacent to the parting line. Thus, a lifting hook may pass into the recess defined by the outer surface portion to engage the bridge portion of a separate mold half, or to engage both bridge portions of both mold halves in the closed position.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: June 28, 1988
    Inventor: John W. Von Holdt
  • Patent number: 4744588
    Abstract: A suspension system comprises a first hub, bearing means spaced from the hub, a second hub carried within the bearing means and rotatable relative to it, and torsion bar means carried by the first and second hubs and extending between them. At least the second hub is positioned within a stationary, hollow tube of non-circular cross section, with the second hub defining rotary motion limiter means that moves into contact with the hollow tube at a desired limit of rotary motion of the second hub, to prevent further rotary motion beyond the limit. The second hub also carries a transversely extending arm. The second hub, including the limiter means and the arm, is made of a single, cast piece for improved manufacturing efficiency.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: May 17, 1988
    Assignee: TLW, Inc.
    Inventor: Charles E. Wharton
  • Patent number: 4743232
    Abstract: A package assembly for a plastic film bandage includes a plastic film bandage having skin adhesive on one side thereof, with a support sheet removably attached to the other side of the bandage and extending beyond the edge of the bandage in at least one area. A tube typically communicates across an end of the bandage with a portion of the tube being positioned against the one side thereof. Means are provided for anchoring the tube into the above-described position. Peel-away protection sheet means are releasably attached to the bandage, covering the one side of the bandage and that portion of the tube which is positioned against the one side. Hinge means are provided, attaching the support sheet and at least a portion of said peel-away protection sheet means at a peripheral position spaced from the bandage. Thus, upon opening, at least a portion of the protection sheet means may be removed from the bandage and may serve as a grippable extension of the support sheet as the bandage is applied to a patient.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: May 10, 1988
    Assignee: The Clinipad Corporation
    Inventor: Robert J. Kruger
  • Patent number: 4738668
    Abstract: A pair of separate conduits, each having an internal seal zone, may be joined by the method which comprises sealingly joining the ends of the conduits together; thereafter adding an antiseptic into the area of the joined conduits between internal seals formed in the zones; and then opening said internal seals without separating the conduits to permit internal fluid flow through the joined conduits.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: April 19, 1988
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Marc Bellotti, Dean G. Laurin, Ronald C. Stauber, Larry C. Taylor
  • Patent number: 4735337
    Abstract: A plastic lid for a container comprises a lid body and an annular, peripheral gripping flange for retaining the lid on the container. In accordance with this invention, the flange defines at least a pair of spaced, circumferential sections, each section having opposed ends which each define a break-away flange portion. Each spaced section defines means permitting outward folding of the section upon breaking away of the connected break-away flange portions to facilitate opening. Alternatively, the gripping flange may define a zigzag tear line for removal of spaced, enlarged portions of the gripping flange to facilitate opening, while permitting remaining portions of the gripping flange to provide some retention of the lid to its container.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: April 5, 1988
    Inventor: John W. Von Holdt
  • Patent number: 4726949
    Abstract: A thin film of white blood cells is irradiated with ultraviolet radiation predominately of a wavelength of 280 to 320 nanometers, and preferably at an intensity of 4 to 15 milliwatts per square cm. At such a radiation intensity it is not necessary to agitate the thin film of white blood cells to accomplish the purposes of this invention. The white blood cells so processed substantially lose their capability to set off an immune reaction in an alloimmunized patient. The white blood cells may preferably be placed into such film in a flat, flexible bag made of poly(ethylene-vinyl acetate) plastic, with the flat, flexible bag being stretched in a direction normal to the path of ultraviolet radiation.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: February 23, 1988
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Jeffrey E. Miripol, Arnold Bilstad, John Foley, Dean Glash
  • Patent number: 4723956
    Abstract: In a container defining a flexible wall, means for sealingly receiving a puncture member through the wall which comprises an insert member positioned within the container. The insert member defines an aperture for sealingly receiving the puncture member after penetration through the wall. The aperture provides flow communication between the container interior and a puncture member received in the aperture. Thus, access may be provided to a container which has no conventional tubular port carried on its exterior. Optionally, tape means may be removably adhered to the flexible wall so that removal of the tape means exposes a clean surface through which the puncture member can penetrate.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: February 9, 1988
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: William J. Schnell, James A. Fitzgerald
  • Patent number: 4724028
    Abstract: An injection site may be made of a disc of puncture-resealable rubber in which the periphery carries a coating of thermoplastic material which is bonded to a sealingly compatible surface to retain the injection site in position. The injection site may be made by coating a rod of puncture-resealable rubber with a plastic material, followed by transversely slicing the coated rod into discs, which may then be sealed to the sealingly compatible surfaces.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: February 9, 1988
    Assignee: Baxter Travenol Laboratories
    Inventors: Kenneth Zabielski, Harold H. Bowerman, Jr.
  • Patent number: 4723790
    Abstract: A torsion bar suspension unit includes a pair of hubs, one of which is attached to a rotationally oscillatable member, and torsion bar means secured and extending between the two hubs. Various improvements to the structure are provided.
    Type: Grant
    Filed: March 4, 1986
    Date of Patent: February 9, 1988
    Assignee: TLW, Inc.
    Inventor: Charles E. Wharton
  • Patent number: 4717668
    Abstract: A plastic roller bottle is provided for suspension cultures for bacteriology or other cell growth or maintenance. The roller bottle comprises a closed bottle defining a longitudinal axis and having flexible plastic walls. Aseptically sealable means for access into the closed body are provided as well. A plurality of spaced reinforcement rings are defined in the flexible plastic walls about the longitudinal axis, to cause the body to normally retain a predetermined, generally cylindrical shape. The flexible plastic walls, apart from the rings, are made of a plastic formulation, and are of a thickness such that the oxygen and carbon dioxide diffusion which takes place through said walls is sufficient to support desired biochemical culturing processes taking place within the roller bottle without venting.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: January 5, 1988
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Michael R. Keilman, Ronald P. Symbol
  • Patent number: 4715953
    Abstract: A hollow fiber separation device such as an oxygenator for blood which comprises a core having a bundle of hollow tubular fibers circumferentially wrapped around the core for separation of materials. A housing encloses the bundle and first and second manifold systems respectively provide separated flow through the bundle in contact with exterior surfaces of the hollow fibers and the bores of the hollow fibers in first and second flow paths. A space extends longitudinally through the bundle exposing open ends of the fibers at opposed sides of the space, regions of the bundle are adjacent to the space being potted to prevent leakage around to the fibers. The second manifold system includes an inlet and outlet conduit, each being in flow communication with the space. Partition means in the space isolates fluid flow between the inlet conduit in one of the opposed sides from fluid flow between the outlet conduit in the other of opposed sides.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: December 29, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventor: Ronald J. Leonard
  • Patent number: 4704352
    Abstract: A solution for blood cell storage having sugar-containing blood cell nutrients therein and additionally containing a magnesium or calcium L-ascorbate-2-phosphate salt is taught. The magnesium and calcium L-ascorbate-2-phosphate salts remain stable below pH 7 and thus permit sterilization of the solution at a pH at which degradation of both the L-ascorbate-2-phosphate salt and the nutrient sugar present in the solution is substantially avoided.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: November 3, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Jeffrey E. Miripol, Andrew Heaton, Richard L. Kandler
  • Patent number: 4690720
    Abstract: Multilayer labels may be manufactured by providing at least one continuous web with adhesive applied at least to spaced leaflet site portions of one face thereof. One applies leaflet members to the spaced leaflet site portions, followed by pressing the leaflet members and web together to adhere the leaflet members to the web. Thereafter, one cuts the continuous web to provide a plurality of separate, leaflet-carrying labels.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: September 1, 1987
    Assignee: Pamco Label Co.
    Inventor: Jory B. Mack
  • Patent number: 4678091
    Abstract: A structure such as a rack comprises columns connected together by beams, positioned in transverse relation to the columns. The rack is provided for use in warehouses or elsewhere. For example, pallets may be placed across pairs of beams for storage in the rack. By this invention, means are provided for retaining the beams and columns in a range of positions of registry in which first apertures in the columns and second apertures in the beams overlap in offset relation. Bolts extend through the overlapping first and second apertures, with the first and second apertures being each of larger diameter than the bolt means. The distance of overlap between the first and second apertures should be typically less than the diameter of the bolts. As a result of this, the beams and columns can be tightly affixed together by the bolts despite unpredictable positional variations in the beams and columns as they are so affixed.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: July 7, 1987
    Assignee: Konstant Products, Inc.
    Inventors: Anthony N. Konstant, John J. Weider
  • Patent number: 4675185
    Abstract: A solution for stabilizing red blood cells during storage contains, along with nutrients and other stabilizers, a safe and effective concentration of an inhibitor of a step of the glycolysis metabolic pathway which is subsequent to the step which forms 2,3-DPG. The inhibitor may be oxalic acid, sodium oxalate, potassium oxalate, or mixed salts thereof, for example.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: June 23, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Richard L. Kandler, Gerald A. Grode
  • Patent number: 4636318
    Abstract: A method and system of continually reforming sewage and other organic materials into liquid oils and gases by pyrolysis using the contained and entrained water in the inorganic and organic constituents of the sewage.
    Type: Grant
    Filed: October 16, 1984
    Date of Patent: January 13, 1987
    Inventor: David L. Baker
  • Patent number: RE32338
    Abstract: A gripper member comprises an openable and closable pair of handles interconnected by a hinge member. Each handle defines, adjacent its hinge member, an arcuate recess positioned to face the corresponding recess of the other handle and defining gripping projections therein. A wall member is positioned longitudinally on each handle to cross each arcuate recess, both wall members being positioned at the same side of their respective recesses. Accordingly, a plastic tube may be surrounded and gripped in the arcuate recesses of the handles for rotational retention thereof as a connector member is inserted into or withdrawn from the tube. At the same time, the wall members pinch the tube into closed, sealed relation with the handles in closed position.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: January 27, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: John B. Alexander, Michael T. Dennehey, Richard J. Greff, John M. Munsch