Patents Represented by Attorney Dowell & Dowell, P.C.

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  • Method for commercial preparation of conjugated linoleic acid from by-products of vegetable oil refining
    Patent number: 6414171
    Abstract: Methods for quantitative conversion of soapstock, lecithin gums, deodorizer distillate and other by-products of vegetable oil refining containing interrupted double bond systems, to products with conjugated double bonds, using a reduced amount of alkali. Less than one mole of alkali per mole of acyl group present is required, thereby greatly reducing the need for added caustic compared with methods using oils, fatty acids and esters as starting materials. The preferred starting materials are soapstocks derived from vegetable oils rich in linoleic acid.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: July 2, 2002
    Assignee: Her Majesty in Right of Canada, as represented by the Minister of Agriculture & Agri-Food Canada
    Inventor: Martin J. T. Reaney
  • Quick safety connection for removably joining pipes
    Patent number: 6412828
    Abstract: A quick safety connection for the removable joining of pipes, comprising a male connector and a female element adapted to fit and to be locked inside one another. A controlled locking mechanism is adapted to immobilized the male connector axially in a position of connection, while at least one retention member is provided to immobilize the male connector, after release of the connector by said locking mechanism, in an intermediate position of discharge of the pipe connection. The locking mechanism and retention member are controlled by a sleeve sliding around the female element. Vents and safety stops are provided to limit the movement of the sleeve under the effect of the pressure prevailing due to the discharge of the connection in the intermediate position between the female element and the sleeve.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: July 2, 2002
    Assignee: Staubli Faverges
    Inventors: Jean-Jacques Lacroix, Antoine Chambaud
  • Tamper resistant programmable medicine dispenser
    Patent number: 6415202
    Abstract: A portable electrically operable and tamper resistant medication dispenser for supplying multiple daily medications to a patient on a predetermined schedule and which includes a programmable assembly for indexing a plurality of containers which are filled with the medications to a dispenser outlet.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: July 2, 2002
    Inventor: Van Halfacre
  • Rotary screw compressor with slide valve and slide stop guidance bushings
    Patent number: 6409490
    Abstract: In a screw compressor, guide bushings are mounted within bores for the bearings which support rotor shafts for the compressor. First bushings are provided at an inlet casing of the compressor and provide guidance for a slide stop and second bushings are provided in an outlet casing of the compressor to provide guidance for a slide valve. The bushings are also mounted to the inlet and outlet casings to provide centering for two sections of the compressor rotor housing. In one embodiment the first and second bushings provide guidance for a slide valve.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: June 25, 2002
    Assignee: York International Corporation
    Inventors: Paul Nemit, Jr., Charles M. Beall, Jr.
  • Method for commercial preparation of conjugated linoleic acid using recycled alkali transesterification catalyst
    Patent number: 6409649
    Abstract: Conjugated linoleic acid is readily prepared by mixing crude alkaline glycerol solution derived as a byproduct of triglyceride transesterification and a linoleate rich triglyceride, ester, soap, phospholipid, fatty acid, or wax and heating the mixture sufficiently to conjugate the linoleate double bonds. The reaction produces a favorable isomer mixture enriched in 10,12-trans,cis octadecadienoic and 9,11-cis,trans-octadecadienoic acids.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: June 25, 2002
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Agriculture & Agri-Food Canada
    Inventor: Martin J. T. Reaney
  • Electronic ballast suitable for lighting control in fluorescent lamp
    Patent number: 6407511
    Abstract: An electronic ballast suitable for lighting control for a fluorescent lamp which includes a bridge rectifier for rectifying input commercial power supply voltage and a high frequency oscillator for feeding the fluorescent lamp a high frequency supply voltage, wherein the electronic ballast further comprises a linear active switching mode filter circuit for filtering the output of bridge rectifier by a linear active switching mode and feeding a supply voltage to the high frequency oscillator. With such configuration, the electronic ballast can be combined with a conventional thyristor lighting controller.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: June 18, 2002
    Inventors: Changgen Yang, William Yu
  • Connector for a heddle frame in a weaving loom
    Patent number: 6397897
    Abstract: A device for connecting a heddle frame to a reciprocating lever in a weaving loom which device includes a hook defining a housing in which a ring is selectively seated. The ring is mounted to either the heddle frame or the lever and includes surfaces for cooperatively engaging bearing surfaces defined by the housing of the hook. A lock is provided which is pivotally mounted to the hook and is engageable to retain the ring within the housing of the hook.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: June 4, 2002
    Assignee: Staubli Faverges
    Inventor: André Fumex
  • Method and device for high frequency treatment of products, related materials and uses
    Patent number: 6399927
    Abstract: The invention concerns a device for high frequency treatment of a liquid, solid or gaseous product comprising at least one treatment inductance (2) enclosing a tubular conduit (1) designed to be passed through by a stream of the product to be treated, said inductance (2) being powered by a high-frequency generator (3) via coupling means (22, 24).
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: June 4, 2002
    Assignees: Chapel et Cie
    Inventor: Henri Durr
  • Device for maneuvering a shutter or roller-type closure member and process for manufacturing such a closure member
    Patent number: 6398146
    Abstract: A device for winding a strap or strip of material for maneuvering a shutter, roller blind or equivalent device comprising a member for winding and tensioning the strap disposed inside a box formed by two shells each including at least one edging extending in a direction substantially perpendicular to a principal web of each shell. The edgings are adapted to be brought into mutual engagement by a relative translation in a direction substantially parallel to the respective principal webs of the shells, in a configuration where an edging of a first shell is covered by an edging of a second shell.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: June 4, 2002
    Assignee: Simbac S.p.A.
    Inventor: Rino Cattaneo
  • Device for coupling a heddle frame on a motion-transmission element
    Patent number: 6378564
    Abstract: A connecting device for connecting a motion transmission element to a heddle frame in a weaving loom wherein the connection device includes a tenon member and mortise member which are cooperatively engaged with respect to one another. The tenon member includes a nut mounted to the transmission element, an anchoring block through which the transmission element extends and which cooperates with surfaces of the mortise member, a bush through which the transition element passes and which bush cooperates in rotation with the nut and which also includes a counter-nut for securing the bush against the anchoring block.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 30, 2002
    Assignee: Staubli Faverges
    Inventor: André Fumex
  • Elbow prosthesis
    Patent number: 6379387
    Abstract: This invention relates to an elbow prosthesis comprising a humeral component forming a first, substantially cylindrical articulating surface and an ulnar component forming a second articulating surface adapted to be arranged around a part of this first articulating surface and to pivot about a longitudinal axis of this first articulating surface. The ulnar component is provided with the means for mounting a locking element forming a third articulating surface, extending the second articulating surface and adapted to be disposed around the first articulating surface, these second and third articulating surfaces extending together, in transverse section, over more than 180° about the first articulating surface.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: April 30, 2002
    Assignee: Tornier SA
    Inventor: Alain Tornier
  • Display and scoreboards with rotary mounting clamps
    Patent number: 6378232
    Abstract: Display devices such as scoreboards having reversible display surfaces are mounted to support frames using opposing clamps each having a pivot post extending therefrom. The clamps engage one of the boards or frames with the posts being seated in openings in the other of the boards or frames. One or more latches extend between the support frames and boards to prevent rotation of the boards when in a locked position.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: April 30, 2002
    Assignee: Eagle Scoreboard Systems, Inc.
    Inventor: Gene Creech
  • Method for treating silica gel
    Patent number: 6375914
    Abstract: A method for stabilizing silica gel wherein after the gel is precipitated it is treated in a solution consisting of a liquid which is preferably water, aluminium sulphate and a compound such as a carbonate, hydroxide or oxide of a divalent metal.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: April 23, 2002
    Assignee: AB Carl Munters
    Inventor: Hakan Vangbo
  • Insulation panel for cabinets containing air handling equipment
    Patent number: 6374571
    Abstract: An insulation panel (1) for cabinets containing air handling equipment has an exterior housing section (2) and an interior housing section (3) which is joined to the exterior housing section by snap-in engagement means, preferably comprising a plurality of tabs (12) provided on the interior housing section. The tabs engage a flange (6) of the first housing section (2) via a first gasket (13), and a circumferential side wall (10) of the second housing section (3) abuts against the first housing section (2) via a resilient second gasket (14), whereby the tabs (12) abut against said first gasket under some pressure to firmly secure the first and second housing sections to each other without creating any thermal bridges between the housing sections.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: April 23, 2002
    Assignee: Munters AB
    Inventor: Soren Mann
  • High efficiency feed network for antennas
    Patent number: 6377227
    Abstract: A printed antenna comprising a dielectric substrate, dipole elements formed on a surface of the substrate, a matching network for coupling a driving point to the antenna elements, whereby common mode currents are minimized thereby minimizing the antenna performance degradation.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: April 23, 2002
    Assignee: SuperPass Company Inc.
    Inventors: Luke Zhu, Yuning Guo, Xifan Chen
  • Armchair
    Patent number: D457008
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: May 14, 2002
    Assignee: Grosfillex Sarl
    Inventor: Raymond Grosfillex
  • Armchair
    Patent number: D457338
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: May 21, 2002
    Assignee: Grosfillex Sarl
    Inventor: Raymond Grosfillex
  • Armchair
    Patent number: D457344
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: May 21, 2002
    Assignee: Grosfillex Sarl
    Inventor: Raymond Grosfillex
  • Dispensing container
    Patent number: D457426
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: May 21, 2002
    Assignee: Giovanni Cosmetics
    Inventor: Shelly Montana
  • Cabinet
    Patent number: D459613
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: July 2, 2002
    Assignee: Grosfillex Sarl
    Inventor: Raymond Grosfillex