Patents Represented by Attorney William J. Crossetta
  • Patent number: 5395514
    Abstract: A portable ultrafiltration device is disclosed comprising a centrifugal pump, membrane filter and an eductor means, arranged at or before the inlet of the centrifugal pump in a recycle loop from the ultrafiltration system and functioning to replenish filterable fluids and increase the efficiency of the centrifugal pump, coupled with means for controlling the device. Provision is also made for an improved feed mixture pick-up assembly comprising a screening means and a reverse fluid flow arrangement which continuously cleans the screen means to prevent fouling of the pick-up assembly, and the combination thereof with an ultrafiltration device.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: March 7, 1995
    Assignee: Infinitex Corporation
    Inventor: Thomas W. Siegler
  • Patent number: 5388787
    Abstract: This invention relates to annular canopy parachutes having a central cap canopy, in critically spaced arrangement at the central main vent, which assists in providing rapid controlled inflation and decreasing oscillation upon inflation as to allow incorporation of high drag coefficient, generally air impermeable canopy fabric.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: February 14, 1995
    Assignee: Irvin Industries Canada Ltd.
    Inventors: David B. Webb, David A. Wright
  • Patent number: 5372588
    Abstract: A trocar has an elongated body with a frustro-conical end which terminates in a blunt tip. A plurality of blades are radially attached to a blade housing connected to the trocar body. In one embodiment the blade housing moves toward the trocar body in response to a force causing the blades to extend to a cutting position. When the force is removed the blades return to a retracted position.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: December 13, 1994
    Inventors: Kevin Farley, Daniel M. Gudeman
  • Patent number: 5356394
    Abstract: An improved cannula for providing access to a body passage for inserting instruments. The cannula of the present invention includes an improvement in the form of a biased ball valve for sealing the inlet of a housing attached to the proximal end of the cannula. The ball valve includes a seal member with an upwardly curved portion that is biased towards a second seal portion at a second end of the housing whereby the ball seats and seals the inlet to the housing cavity.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: October 18, 1994
    Inventors: Kevin Farley, Daniel M. Gudeman
  • Patent number: 5343893
    Abstract: This invention relates to a fluid distribution valve comprising a port select valve structure wherein the flow of fluid from a fluid flow source is directed through a chamber of a rotatable member comprising a plurality of varying sized spaced ports which align with ports of a housing at various positions of rotation of the member to provide variations of fluid flow through the ports of the housing. The valve has particular utility as an air distribution valve in an air flow support mattress system.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: September 6, 1994
    Assignees: Irvin Industries Canada Ltd., Namtec Corporation
    Inventors: James V. Hogan, Stephen J. Matheson
  • Patent number: 5122699
    Abstract: A process for the formation of a force field comprising cooling at least one crystal selected from potassium tartrate, cesium nitrate, rubidium nitrate, tartaric acid, cadmium nitrate and thorium nitrate to a temperature below about 110K. The force field comprises an electric field and a mass attraction field which maintains its intensity over long time periods. The crystal is encapsulated in, e.g., nonconductive epoxy.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: June 16, 1992
    Assignee: State University of New York
    Inventor: James D. Brownridge
  • Patent number: 5078882
    Abstract: The invention relates to an apparatus and process useful for the biological transformation of waste materials into ecologically desirable materials. A meta system reactor is disclosed comprising three primary zones which are cyclically and dynamically connected by a circulating fluid. In the process of the invention, each of a bioreactor zone, solids ecoreactor zone and georeactor zone further comprise secondary subsystems and are cyclically connected by a series of recycle flows and organism movements to bioconvert the contained materials. The converted materials produced can be desirable and ecologically beneficial end products comprising gases such as nitrogen, oxygen, carbon dioxide, and water vapor; a biologically active and highly beneficial humus material; and clean water which may be passed through a final wetlands polishing and biomonitoring system before discharge into a natural receiving water.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: January 7, 1992
    Assignee: Bion Technologies, Inc.
    Inventor: Jere Northrop
  • Patent number: 5003065
    Abstract: New compounds are described of the formula: ##STR1## wherein Z is selected from ##STR2## each x is selected from ##STR3## n is an integer from 1-10; each Y is selected from hydrogen, --NH.sub.2, --COQ, --COOQ, --COONHQ, --COOH, --OH, W, halogen and Q; wherein each Q is independently selected from substituted and unsubstituted lower alkenyl and lower alkyl and wherein the substitutuents are selected from --NH.sub.2 halogen, --OH, and --COOH; D is selected from hydroxy, hydrogen and --NH.sub.2 ; and W is selected from ##STR4## wherein each R is independently selected from hydrogen and lower alkyl; R' is selected from ethylene, propylene, isopropylene and phenylene; M is selected from chlorine and hydroxy; A is selected from hydrogen, lower alkyl, lower alkenyl, cycloalkyl, and phenyl; (B) is selected from ##STR5## --CO--, --NHCO--, --O--, --COO--, --N.dbd.N--, or represents a confugate bond; L.sub.1 and L.sub.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: March 26, 1991
    Inventors: Carey Merritt, James Winkelman, Ruth Silberman-Hazony
  • Patent number: 4999425
    Abstract: This invention relates to an improvement to a process for synthesizing cellulose aminomethanate which comprises slurrying cellulose in an aqueous caustic solution, in the presence of urea; steeping the slurried mixture for a time sufficient to permit swelling of the cellulose for uniform distribution of the urea; concentrating the steeped mixture and treating an extraction of the concentrate with an ion-exchanger. When cellulose aminomethanate is manufactured from product prepared in accord with this process, it has a uniform distribution of substituent throughout the cellulose at the molecular level and comprises a suitable product for manufacturing sausage casing.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: March 12, 1991
    Assignee: Teepak, Inc.
    Inventor: Douglas J. Bridgeford
  • Patent number: 4997933
    Abstract: This invention relates to an improvement to a process for synthesizing cellulose aminomethanate which comprises slurrying cellulose in an aqueous caustic solution, in the presence of urea; steeping the slurried mixture for a time sufficient to permit swelling of the cellulose for uniform distribution of the urea; and, neutralizing the caustic solution of the steeped slurry by treatment with an acid neutralizing solution. When cellulose aminomethanate is manufactured from product prepared in accord with this process, it has a uniform distribution of substituent throughout the cellulose at the molecular level and comprises a suitable product for manufacturing sausage casing.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: March 5, 1991
    Assignee: Teepak, Inc.
    Inventor: Matiur Rahman
  • Patent number: 4997934
    Abstract: This invention relates to an improvement to a process for synthesizing cellulose aminomethanate wherein cellulose is steeped in an aqueous urea containing solution, dried to form an intimate mixture of cellulose and urea of known composition, and heated to form the cellulose aminomethanate; the improvement comprising, heating the mixture to a temperature above about 125 degrees centigrade, measuring the weight loss of the mixture during heating, comparing the measured weight loss of the mixture during heating to the weight of an equivalent amount of ammonia released in accord with the reaction path:Cell-OH+CO(NH.sub.2).sub.2 .fwdarw.Cell-OCONH.sub.2 +NH.sub.3continuing heating until the total measured weight loss corresponds to the total weight of an amount of ammonia released in the reaction when from about 30 to about 100% of the total weight of urea present in the mixture reacts with cellulose.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: March 5, 1991
    Assignee: Teepak, Inc.
    Inventor: Matiur Rahman
  • Patent number: 4994591
    Abstract: This invention relates to new cis diamino platinum complexes; to compositions comprising these complexes; and to processes for their utility as fungicides, bacteriocides and as inhibitors of the growth of cancer in warm-blooded animals, wherein the complex is of the formula: [B(CH.sub.2).sub.n NH.sub.2 ].sub.2 Pt-M and ##STR1## wherein Pt is platinum II or platinum IV; M is selected from Y.sub.2, cyclic ##STR2## cyclic ##STR3## and cyclic ##STR4## when Pt is platinum II and X.sub.4 when Pt is platinum IV; each a is independently 1 or 2; n is from 0-3; each Y is independently --Cl, --Br, --I, --OH, --ONO.sub.2, --OSO.sub.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: February 19, 1991
    Assignee: The Research Foundation of State University of NY
    Inventors: Wayne K. Anderson, Rudiger D. Haugwitz
  • Patent number: 4973338
    Abstract: A coated abrasive is disclosed that has been oversized with an anti-loading amount of a quaternary ammonium anti-static compound, comprising from about 15 to about 35 carbon atoms and a molecular weight not less than about 300, have been found to have a combination of anti-static, lubricity and anti-loading characteristics which provide improved abrading efficiency and longer abrading life.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: November 27, 1990
    Assignee: Carborundum Abrasives Company
    Inventors: Anthony C. Gaeta, Alex J. Dean
  • Patent number: 4927966
    Abstract: New compounds having utility for enhancing the activity of antifolates are disclosed of the formula: ##STR1## wherein X is selected from hydrogen ##STR2## and R"--; R' is selected from alkyl, alkenyl, alkynyl, substituted and unsubstituted aryl, and substituted and unsubstituted heterocyclic aryl; R" is selected from ##STR3## and R'S; M is selected from OR and secondary amine; and R is selected from hydrogen, alkyl, acyloxymethyl, substituted and unsubstituted aryl, substituted and unsubstituted heterocyclic aryl, amino cation and metal cation.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: May 22, 1990
    Assignee: The Research Foundation of State University of New York
    Inventor: Thomas I. Kalman
  • Patent number: 4844129
    Abstract: Polydextrose compound containing anti-pleat lock coatings, food casings containing said coatings, and a method for their production which comprises applying to the surface thereof an aqueous coating composition containing a polydextrose compound are disclosed. The coated food casings exhibit improved food release characteristics, improved resistance to strand breakage, and improved anti-pleat lock characteristics.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: July 4, 1989
    Assignee: Teepak, Inc.
    Inventors: Douglas J. Bridgeford, Rodney J. Hine
  • Patent number: 4830969
    Abstract: A process for the separation from other cellular materials of heat agglomeration resistant water soluble nitrogen containing organic compounds such as plasmids, RNA's, mitochondrial DNA's, viral DNA's, chloroplast DNA's, other episomal DNA's and certain proteins. The process comprises heating cellular materials in a solution of lysing agent to lyse the desired cells and to agglomerate water soluble nitrogen containing compounds such as certain chromosomal DNA's which are not resistant to agglomeration; centrifuging the resulting product to remove water soluble agglomerated materials; separating the supernatant liquid and precipitating the water soluble agglomeration resistant organic compounds with a water soluble precipitant. The process also includes separating the agglomeration resistant water soluble nitrogen containing compounds from each other by means of exclusion chromotography.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: May 16, 1989
    Assignee: The Research Foundation of State University of New York
    Inventor: David S. Holmes
  • Patent number: 4828539
    Abstract: Described is a pack comprising a carrier material such as for example cardboard, which is coated with a thermoplastic material, for liquids, comprising a tube with a bottom and a cover which has a pouring spout, in the sealing region of which are disposed, beside sealing areas with a high adhesive force, sealing areas with a low adhesive force for the purposes of peeling the sealing areas apart.In order not to be dependent on agents which impair the sealing effect and on the disposition thereof on certain regions in the cover, and in order for the tooling to be simplified, the invention provides that the sealing area (40') with a low adhesive force is formed by a pattern of raised surfaces (6) which alternate with areas (5) disposed therebeside and at a lower level.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: May 9, 1989
    Assignee: Tetra Pak International AB
    Inventors: Bengt Jonsson, Sten Persson, David Wiggins
  • Patent number: 4822087
    Abstract: The invention relates to a lift improvement device comprising a hollow main elongated member, having a forearm support at one end and a handle grip from about 7 to about 18 inches along the elongated member from the forearm support. The hollow elongated member is configured to receive a pole or handle therethrough and the device has particular utility for slidably mounting on poles or handles to allow single handed manipulation of end working devices which, in turn, are mounted on the poles or handles.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: April 18, 1989
    Inventor: Tony J. DeCarlo
  • Patent number: 4806561
    Abstract: This invention provides a method of providing treatment to a warm blooded animal in need of treatment of a solid cancer tumor of the colon or breast comprising administering an effective amount of a pyrrole of the formula: ##STR1##
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: February 21, 1989
    Assignee: The Research Foundation of State University of New York
    Inventor: Wayne K. Anderson
  • Patent number: 4802511
    Abstract: Shirred tubular material comprising a plurality of outer folds arranged along at least two parallel and two counter-directional parallel, longitudinal extending, crisscrossing helixes and inner folds connecting opposing points of diamond shapes defined by said outer folds is disclosed together with a method for its preparation comprising repeatedly applying a set of shirring forces, each of the forces in the set being simultaneously at circular circumferential equally spaced positions along a plurality of equidistant helical lines within the periphery of said tubular material to shirr such material.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: February 7, 1989
    Assignee: Teepak, Inc.
    Inventor: Norman G. Hensley