Patents Represented by Attorney Neal A. Waldrop
  • Patent number: 4276173
    Abstract: An improved cellulose acetate semi-permeable hollow fiber suitable for use in artificial kidneys and a process for making same.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: June 30, 1981
    Assignee: Cordis Dow Corp.
    Inventors: Michael J. Kell, Robert D. Mahoney
  • Patent number: 4269712
    Abstract: A hollow fiber separatory element of the type having a plurality of hollow semipermeable fibers terminating at their end portions in resin tubesheets; each tubesheet has a disc-shaped portion that tapers radially inwardly toward its inner end surface that serves as a pressure-induced sealing surface when forced into contact with a correspondingly tapered surface on the inner wall of a surrounding jacket. Each tubesheet optionally includes a second tapered portion that extends outwardly from the outer end face of the disc portion and its peripheral surface tapers radially inwardly toward the outer end planar surface which exposes the open ends of the fibers therein. The tubesheet disc portion may be circular, lenticular, elliptical or have other selected shape.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: May 26, 1981
    Assignee: Cordis Dow Corp.
    Inventors: Roger B. Hornby, Bennie J. Lipps, Charles E. Savage
  • Patent number: 4235152
    Abstract: A stabilizer for a gun comprising a tubular element is adapted to fit on the muzzle end of a gun barrel or flash hider and is releasably secured in position by a stop carried by a lever pivoted on the element. The lever is yieldably urged by resilient means to move the stop through an opening in the element and into a recess in the barrel or flash hider. A plurality of stabilizing vents are provided in the element for discharging combustion gases from the gun and a plurality of exterior gas directing projections on the element are associated with certain of the vents for directing the gases from all of the associated vents essentially in the same direction to one side of the element.
    Type: Grant
    Filed: January 11, 1978
    Date of Patent: November 25, 1980
    Inventors: Marthinus J. Bekker, Douglas J. M. Hall
  • Patent number: 4231871
    Abstract: An improved one-piece, integral hollow fiber artificial kidney and a semi-continuous method for making such kidneys and other apparatus of the hollow fiber separatory-type.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: November 4, 1980
    Assignee: Cordis Dow Corp.
    Inventors: Bennie J. Lipps, William P. Murphy, Jr., Frank W. Mather, III
  • Patent number: 4211597
    Abstract: An improved semi-continuous method for making one-piece, integral hollow fiber artificial kidneys and other apparatus of the hollow fiber separatory type.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: July 8, 1980
    Assignee: Cordis Dow Corp.
    Inventors: Bennie J. Lipps, William P. Murphy, Jr., Frank W. Mather, III
  • Patent number: 4209391
    Abstract: Apparatus for and method of automatically controlling the quantity and rate of liquid removed from blood during hemodialysis. The apparatus supplies dialysate in a single pass system in a closed, controlled volume circuit which includes an above atmospheric pressure portion and a below atmospheric pressure portion. The above atmospheric pressure portion includes a pair of chambers for alternate supply to and removal of the dialysate from the below atmospheric pressure portion which contains an artificial kidney and a third means for removing fresh dialysate from the above atmospheric pressure portion; the below atmospheric pressure portion includes means which isolates the kidney containing portion and restores pressure to spent dialysate to a pressure at least equal to or higher than the pressure of the dialysate fed into said closed circuit; the above atmospheric circuit also includes means for removing gas from the spent dialysate prior to filling the spent dialysate removal chamber before discard.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: June 24, 1980
    Assignee: Cordis Dow Corp.
    Inventors: Bennie J. Lipps, Julian I. Landau
  • Patent number: 4207315
    Abstract: A process and pharmaceutical compositions for alleviating proliferative skin diseases such as psoriasis, atopic dermatitis, etc., comprising administering to humans or domesticated animals, topically and/or parenterally, and/or systemically a composition comprising a pharmaceutical carrier and at least one diamino compound selected from the diamines of saturated and unsaturated aliphatic hydrocarbons having 3 to 6 carbon atoms and the diamines of saturated monocarboxylic acids having 4 to 6 carbon atoms and the alkyl esters thereof containing from 1 to 4 carbon atoms. These diamino compounds are usable alone or in combination with certain prostaglandin compounds, certain phosphodiesterase inhibitor compounds and certain cyclic adenosine monophosphate compounds.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: June 10, 1980
    Assignees: University Patents, Inc., University of Michigan
    Inventors: John J. Voorhees, Diane H. Russell
  • Patent number: 4202760
    Abstract: Apparatus and method for make up of a hemodialysis solution and supply of same to an artificial kidney; the solution optionally contains bicarbonate in any desired amount. The apparatus comprises a recirculation loop which mixes a hemodialysis dialysate concentrate with deaerated water and may include another interconnected recirculation loop adopted to form an aqueous bicarbonate solution. Both recirculation loops mix the concentrates in the recirculation fluid in venturi means operated by continuously controlling the velocity of fluid flowing therethrough to create suction to inject the requisite quantity of concentrate to form the final desired composition in the product hemodialysis solution.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: May 13, 1980
    Assignee: Cordis Dow Corp.
    Inventors: L. Robert Storey, Robert C. Hall
  • Patent number: 4201788
    Abstract: A process and pharmaceutical compositions for alleviating proliferative skin diseases such as psoriasis, atopic dermatitis, etc., comprising administering to humans or domesticated animals, topically and/or parenterally, and/or systemically a composition comprising a pharmaceutical carrier and at least one diamino compound selected from the diamines of saturated and unsaturated aliphatic hydrocarbons having 3 to 6 carbon atoms and the diamines of saturated monocarboxylic acids having 4 to 6 carbon atoms and the alkyl esters thereof containing from 1 to 4 carbon atoms. These diamino compounds are usable alone or in combination with certain prostaglandin compounds, certain phosphodiesterase inhibitor compounds and certain cyclic adenosine monophosphate compounds.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: May 6, 1980
    Assignees: University Patents, Inc., The Regents of the University of Michigan
    Inventors: John J. Voorhees, Diane H. Russell
  • Patent number: 4199212
    Abstract: The invention comprises an assembled electrical lamp socket construction having novel integral sealing means for the tower end derived from axial installation of a split plug wedging compressively within an outer socket shell and against insulation of wiring passing therethrough to retain electrical circuit contact assemblies in the tower. The plug is inserted with interengaging tapered surfaces in the tower end of the socket shell producing snap-in fit for the circumferential compressive engagement of the plug with the shell and a second interference compressive fit for the mating surfaces of the split plug halves. Apertures for insulated electric wires are formed in the mating surfaces with circumferential protrusions that encapsulate and compressively penetrate the wire insulation to form a seal thereabout.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: April 22, 1980
    Assignee: C. J. Edwards Company
    Inventor: Joseph W. Baldyga
  • Patent number: 4190669
    Abstract: A process for the treatment of psoriasis comprising administering to humans or domesticated animals topically and/or systemically a composition comprising a pharmaceutical carrier and eicosa-5,8,11,14-tetraynoic acid, its congeners, and the lower alkyl esters thereof; in one preferred form of the invention the composition comprises a pharmaceutical carrier and 5,8,11 eicosatriynoic acid; in another preferred form of the invention the composition comprises a pharmaceutical carrier and at least one active compound selected from the groups eicosa-5,8,11,14-tetraynoic acid, its congeners and the lower alkyl esters thereof and at least one compound selected from the group consisting of PGE.sub.1, PGE.sub.2, PGE.sub.3 and the alkyl esters thereof containing from 1 to 8 carbon atoms inclusive, and 13,14-dihydro PGE.sub.1 and the alkyl esters thereof containing from 1 to 8 carbon atoms inclusive.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: February 26, 1980
    Assignee: The Regents of the University of Michigan
    Inventors: John J. Voorhees, Sven R. Hammarstrom, Mats A. Hamberg, Bengt I. Samuelsson
  • Patent number: 4184489
    Abstract: An extra corporeal blood tube injection site comprising a smooth blood conduit or tube, an elongated elastomeric sleeve surrounding a section of the tube, and a C-shaped needle-impenetrable member extending along and partially surrounding the sleeve which generates forces within the portion of the sleeve that is not covered by the C-shaped member sufficient to prevent air leakage into, or blood leakage from, the tube during needle penetration or after withdrawal of a needle.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: January 22, 1980
    Assignee: Cordis Dow Corp.
    Inventor: Samuel Burd
  • Patent number: 4181725
    Abstract: Pharmaceutical compositions administered to humans and animals topically for treatment of proliferative skin diseases, primarily psoriasis. The composition comprises a pharmaceutical carrier with at least one active ingredient selected from the group consisting of para bromophenacyl bromide, alpha tocopherol, mepacrine, chloroquine, hydroxychloroquine, dibucaine, tetracaine, lidocaine, butacaine, procaine, ethylene diamine tetra acetic acid and ethylene glycol bis(.beta.-amino ethyl ether)-N-N' tetra acetic acid; the compositions may also include one or more unsaturated aliphatic compounds, a glucocorticoid and a prostaglandin.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: January 1, 1980
    Assignee: The Regents of the University of Michigan
    Inventors: John J. Voorhees, Sven R. Hammarstrom, Mats A. Hamberg, Bengt I. Samuelsson
  • Patent number: 4161525
    Abstract: A process for alleviating proliferative skin diseases such as psoriasis, atopic dermatitis, etc., comprising administering to humans or domesticated animals, topically or systemically, a composition comprising a pharmaceutical carrier and an indole derivative and combinations thereof with permissive dosages of glucocorticoids.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: July 17, 1979
    Assignee: The Regents of the University of Michigan
    Inventor: John J. Voorhees
  • Patent number: 4146621
    Abstract: A process for alleviating proliferative skin diseases such as psoriasis, atopic dermatitis, etc., comprising administering to humans, or domesticated animals, topically and/or systemically a composition comprising a pharmaceutical carrier and at least one active compound selected from Groups 3, 4, 5, 6, 7 and 8 set forth in the specification, and combinations thereof with a glucocorticoid.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: March 27, 1979
    Assignee: The Regents of the University of Michigan
    Inventor: John J. Voorhees
  • Patent number: 4144332
    Abstract: A process for alleviating proliferative skin diseases such as psoriasis, atopic dermatitis, etc. comprising administering to humans, or domesticated animals, topically and/or systemically a composition comprising a pharmaceutical carrier and at least one active compound selected from certain anilino nicotinic acids used alone, or in mixtures, or in combination with a glucocorticoid.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: March 13, 1979
    Assignee: The Regents of the University of Michigan
    Inventor: John J. Voorhees
  • Patent number: 4141976
    Abstract: A process for alleviating proliferative skin diseases such as psoriasis, atopic dermatitis, etc. comprising administering to humans, or domesticated animals, topically and/or systemically a composition comprising a pharmaceutical carrier and at least one active compound selected from the groups, substituted alkyl zanthines, substituted thioxanthines, alone or in combination with a glucocorticoid.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: February 27, 1979
    Assignee: The Regents of the University of Michigan
    Inventor: John J. Voorhees
  • Patent number: 4138460
    Abstract: A method of potting in a single or multi-cavity mold a plurality of fibers in continuous tow form to encapsulate the fibers, fill the interstices and form a solid tubesheet of selected shape and length. After transversely cutting through the thus formed tubesheet and the fibers therein a pair of tubesheets are formed each attached to and forming the end portion of a length of fibers. Potting at spaced longitudinal locations on the continuous tow, and transverse cutting, produces fiber bundle assemblies having a length of the tow of hollow fibers between a pair of axially spaced tubesheets. The process is semi-continuous or continuous, as desired.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: February 6, 1979
    Assignee: Cordis Dow Corp.
    Inventor: Reuben A. Tigner
  • Patent number: D260174
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: August 11, 1981
    Assignee: Cordis Dow Corp.
    Inventor: Zane H. Geel
  • Patent number: D260813
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: September 15, 1981
    Assignee: Cordis Dow Corp.
    Inventor: Zane H. Geel