Patents Represented by Attorney Bert J. Lewen

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  • Fan casing volute
    Patent number: 4599042
    Abstract: A fan casing volute comprises two half members which are joined to one another, each half member being formed by a moulding process from a polymeric material, the volute being characterized by central bearing housings in intake openings of the volute end plates, and a plurality of U-shaped arms which support the bearing housings, all being in a single monolithic moulding, and all having substantially similar cross-sectional thicknesses.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: July 8, 1986
    Assignee: Coolair Corporation Pte., Ltd.
    Inventor: Anthony D. Colliver
  • Intermediate bulk container
    Patent number: 4597102
    Abstract: An intermediate bulk container comprises an outer envelope (1 to 6) formed of flexible woven material and having seams (11 to 14). An impervious liner (20) of flexible material is contained within the outer envelope. The liner has tab means (27) lying outside the volume defined within the liner and secured, for example by stitching into a respective seam of the outer envelope. By appropriate location of the tab means on the liner the liner may be securely located within the outer envelope and prevented from distortion relative to the outer envelope.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: June 24, 1986
    Assignee: Nattrass-Hickey & Sons, Ltd.
    Inventor: Frank Nattrass
  • Intraocular lens with miniature optic
    Patent number: 4596578
    Abstract: An intraocular lens having an optic which has a dimension, determinative of the smallest incision through which it can be inserted, of substantially less than 5 mm and which includes a mask overlying a peripheral marginal portion of the optic for preventing glare.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: June 24, 1986
    Inventor: Charles D. Kelman
  • Fan volute and spreader
    Patent number: 4594861
    Abstract: A single monolithic moulding of a fan volute and water spreader for an air cooler. There is provided at least one shelf, either on the volute or on the spreader, which supports the spreader from the volute, the spreader being of generally curved shape and outstanding from the outer surface of the volute. Link means hinge the spreader to the volute to enable the spreader to be tilted, for example for replacement of an absorptive pad which can depend from the spreader.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: June 17, 1986
    Assignee: Coolair Corporation PTE., Ltd.
    Inventor: Anthony D. Kearney
  • Producing sequential polyamino acid resin
    Patent number: 4594409
    Abstract: A sequential polyamino acid resin having a remarkably high molecular weight and special amino acid sequence as repeating unit in the resin can be produced by conducting polycondensation of a peptide active ester acid salt in an aprotic polar solvent in the presence of a tertiary amine and phosphorus pentoxide.
    Type: Grant
    Filed: August 30, 1984
    Date of Patent: June 10, 1986
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Ikuo Hayashi, Tadao Itikawa, Kiyoshi Shimizu
  • Rotary nibbler
    Patent number: 4593465
    Abstract: A rotary type nibbler comprising a spindle having a helical groove, the spindle being rotatable in a bearing sleeve which terminates in a flat workpiece engagement face which is at an angle with respect to the axis of rotation approximating the helix angle of the groove so that the edge of a workpiece when urged into engagement with the root of the groove will have cut from it a crescent shaped slug.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: June 10, 1986
    Inventor: Brian A. Bennett
  • Electrically heated pump for spas and swimming pools
    Patent number: 4594500
    Abstract: A pump for a spa or swimming pool adapted to heat the liquid being pumped includes a rigid plastic housing fabricated from (1) a first housing part having a volute portion defining a suction chamber enclosing a pump impeller and having an outlet therefrom and a boss defining an inlet thereto and (2) a second housing part having a discharge outlet and a tubular inlet. A sleeve extends between the tubular inlet and volute portion boss to define a suction inlet to the suction chamber. A body extension inserted between the first and second housing parts defines a pressure chamber surrounding the suction inlet and suction chamber and in communication with the suction chamber outlet and discharge outlet. An electrical heater is positioned in the pressure chamber to heat the liquid pumped by the impeller and is controlled by temperature and pressure sensing devices positioned in the pressure chamber.
    Type: Grant
    Filed: February 7, 1983
    Date of Patent: June 10, 1986
    Assignee: Wright Spa Pools Ltd
    Inventor: Murray J. Wright
  • Ferrite toner carrier core composition derived from fly ash
    Patent number: 4592988
    Abstract: A ferrite toner carrier core composition derived from flyash comprising a mixture of spherical particulates of the general formula ##EQU1## wherein iron is the principal metallic element and i,j,k denote the number of atoms of monovalent, divalent and trivalent atoms present in one mole of the compound, andM.sub.x denotes monovalent atoms from Group IA of the Periodic Table, the alkali metals, usually sodium or potassium, alone or together.M.sub.y denotes divalent atoms from Group IIA of the Periodic Table, the alkali earth metals, usually magnesium or calcium, alone or together.M.sub.z denotes trivalent atoms from Group IVB, usually titanium, Group IVA, usually silicon and Group IIIA, usually aluminum. All permutations and combinations may be present.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: June 3, 1986
    Assignee: Halomet, Inc.
    Inventors: Robert G. Aldrich, Geoffrey H. Earl, David W. Trunko
  • Wheelchair transfer
    Patent number: 4592562
    Abstract: A transfer device for transferring a patient from a wheelchair to a motor vehicle seat, which comprises a pair of interlocking trays, one on a frame of the wheelchair and one on the motor vehicle seat, the trays having aligned tracks which are engaged by the wheelchair seat, which upon being released from the wheelchair frame, is movable from the wheelchair frame onto the tray on the motor vehicle seat.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: June 3, 1986
    Assignee: Friends of the Disabled Assn., Inc.
    Inventors: Maris Strautnieks, Maria A. Snel
  • Intraocular lens
    Patent number: 4591358
    Abstract: An intraocular lens suitable for seating in the ciliary sulcus of the posterior chamber of a human eye utilizing flexible legs individually making substantially single contact points with the interior of the eye and individually comprising compression springs.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: May 27, 1986
    Inventor: Charles D. Kelman
  • Intraocular lens and method of preparing the same for insertion into a human eye
    Patent number: 4586930
    Abstract: A posterior chamber intraocular lens having position-fixation legs extending from the lens body and having a suture loosely engaging one of the legs and extending through an aperture in the lens body. Prior to insertion of the lens into a human eye, the surgeon tightens the suture to deform said position-fixation leg to a position adjacent the lens body to facilitate passing that position-fixation leg through the pupil and by the iris for seating in the cul-de-sac between the anterior and posterior capsules after the other position-fixation leg is seated in such cul-de-sac.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: May 6, 1986
    Inventor: Charles D. Kelman
  • Hydrogenation of carboxylic acid compounds to aldehydes using MnO.sub.2 on gamma alumina as catalyst
    Patent number: 4585899
    Abstract: A process for selectively forming aldehydes which comprises hydrogenating a carboxylic acid or a carboxylic acid ester in the presence of a manganese catalyst supported on an activated alumina.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: April 29, 1986
    Assignee: Chem Systems Inc.
    Inventors: Abraham P. Gelbein, Robert Hansen
  • Hydrogenation of carboxylic acid compounds to aldehydes using Cu/YtO as catalyst
    Patent number: 4585900
    Abstract: A process for selectively forming aldehydes which comprises hydrogenating a carboxylic acid or a carboxylic acid ester in the presence of an yttrium catalyst activated with copper.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: April 29, 1986
    Assignee: Chem Systems Inc.
    Inventors: Norman L. Holy, Abraham P. Gelbein, Robert Hansen
  • Bipolar membranes
    Patent number: 4584246
    Abstract: An improved bipolar membrane, a precursor for said membrane and a process for preparing bipolar membranes and precursors are described. In the process a precursor is formed by laminating at least two polymeric layers at least one of which is non-ionic. After the formation of the precursor, the non-ionic layer or layers are chemically treated to form a stable bipolar membrane having high permselectivity and low potential drop. The novel bipolar membrane contains an interfacial layer having anionic and cationic domains.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: April 22, 1986
    Assignee: Chinese Petroleum Corp.
    Inventors: Kang-Jen Liu, Ho-Lun Lee
  • Arginyl-3-carboxy-4-hydroxyanilide
    Patent number: 4584398
    Abstract: Novel arginyl-3-carboxy-4-hydroxyanilide of the formula ##STR1## and acid addition salts thereof are of use as starting materials for preparing chromophoric and fluorescent substrates for measurement of enzyme activity.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: April 22, 1986
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Katsumasa Kuroiwa, Shuichi Nakatsuyama, Takeshi Nagasawa
  • Method for improving color fastness: mono- and di-allylamine copolymer for reactive dyes on cellulose
    Patent number: 4583989
    Abstract: The present invention relates to a method for improving the color fastness of a dyed product which comprises treating a dyed product dyed with a reactive dye with the aqueous solution of a copolymer of monoallylamine and a specified diallylamine derivative.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: April 22, 1986
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Toshio Ueda, Kenzi Kageno, Susumu Harada
  • Preparation of thiazolidine derivatives
    Patent number: 4584407
    Abstract: A method of preparing a thiazolidine derivative of the formula ##STR1## where R, R.sub.1, R.sub.2 R.sub.3 and R.sub.4 are each independently hydrogen or appropriate aromatic or aliphatic substituents, comprises reacting together a sulphur donor, such as sulphur or hydrogen sulphide, an aldehyde of the formula RCHO, such as benzaldehyde or formaldehyde, and an ethanolamine derivative of the formula, or including the radical, NH.sub.2 CR.sub.1 R.sub.2 CR.sub.3 R.sub.4 X, where X is a leaving group. A suitable derivative may be, for instance, aminoethylsulphate (AES). The thiazolidine derivative may be used, for example, as intermediates in the preparation of other compounds such as cysteamine.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: April 22, 1986
    Assignee: Fine Organics Limited
    Inventor: John Hollowood
  • Line lock
    Patent number: 4583649
    Abstract: A line lock for a rotary clothes dryer includes a locking block having a socket which is positioned over an end of, and engages, an arm of a rotary clothes dryer, a plurality of apertures extending through the block, at least one of the clothes lines extending through an aperture, and a flexible line tie extending through another of the apertures, and being tied to the clothes line thereby locking the clothes line to the locking block.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: April 22, 1986
    Assignee: Hills Industries Limited
    Inventor: John A. S. Brown
  • Egg cooker
    Patent number: D283781
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: May 13, 1986
    Inventor: Steven R. Hutchison
  • Display stand or similar article
    Patent number: D283862
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: May 20, 1986
    Assignee: The Howard Marlboro Group, Inc.
    Inventors: Sydney Edson, Salvatore Miuccio, Howard Nathan