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

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  • Optical lens system for projecting light in a lambertion pattern from a high power led light source
    Patent number: 6819506
    Abstract: An optical lens having a body with a front face and a rear cavity for cooperatively receiving and optically aligning a high power light emitting diode source with respect to a primary central optical axis of the lens. Reflective inner side walls of the body project light in a lambertion pattern from the front face at an angle to create a central hot spot. The body includes at least one side flange which is cooperatively received in a guide of a lens holder and further includes a non-optical annular rim extending from the front face for cooperatively seating with the lens holder.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: November 16, 2004
    Assignee: Infinity Trading Co. Ltd.
    Inventors: Wilfrid E. Taylor, Wilfrid L. Taylor, James R. Taylor, David W. Kappel, Paul Nam-Kwan Wu
  • Pumps
    Patent number: 6817194
    Abstract: A conduit elbow having first opening and a second opening and housing a pump assembly for use in an air conditioning system, the pump assembly including a pump having a pump inlet and a pump outlet, and wherein the pump inlet is a fluid communication with a reservoir. The reservoir is formed integrally with the pump assembly and has an inlet fluid communication with a first fluid-carrying pipe of an air-conditioning installation and wherein the pump outlet of an air fluid communication with a second fluid-carrying pipe of an air-conditioning installation.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: November 16, 2004
    Assignee: Aspen Pumps Limited
    Inventor: Bernard Leach
  • Vehicle container cover
    Patent number: 6814386
    Abstract: A cover assembly for a truck having a material carrying container wherein the cover assembly includes a retractable cover having a first end attached to a roller assembly and a second end attached to a cover support element. The cover support element has two ends, each of which is joined at the upper end of a pair of variable length pivot arms which are pivotable about a lower end thereof at a point intermediate two ends of the container and adjacent the bottom of the container, between a first position in which the cover support element is adjacent a first end of the container and a second position in which the cover support element is adjacent a second end of the container.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: November 9, 2004
    Inventor: Robert Arthur Wood
  • Quick connect couplings for limiting overheating of pressurized gases and use thereof
    Patent number: 6814341
    Abstract: A quick connect coupling for removably joining two pipes includes an upstream element and a downstream element adapted to be fitted axially with the upstream element thereby opening a valve movable between a position of opening and a position of closure. The upstream element is provided with at least one O-ring disposed to surround the valve and is adapted for connection to an upstream pipe for inlet of pressurized gas, particularly oxygen. A primary sealing zone is provided upstream of the O-ring which is dimensioned to induce a significant reduction in a flowrate of gas flowing in the direction of the O-ring in order to limit overheating of the O-ring.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: November 9, 2004
    Assignee: Staubli Faverges
    Inventors: Jean-Jacques Lacroix, André Pavan
  • Patellar implant and knee prosthesis incorporating such an implant
    Patent number: 6802864
    Abstract: A patellar implant for total or partial prosthesis of the knee joint incorporates an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component. The inner and outer articular surfaces are separated by a transition ridge which is curved, as viewed from a front of the implant, so as to be concave facing the outer articular surface. The outer articular surface is concave in a plane parallel to a sagittal plane and in a transverse plane of the knee joint.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: October 12, 2004
    Assignee: Toriner SA
    Inventor: Alain Tornier
  • Apparatus and method for treating milling products
    Patent number: 6793165
    Abstract: An apparatus for treating milling products comprises a housing (1), a rotor (2) rotatably arranged in said housing (1) and having at least one pocket (8) for receiving steam-containing milling products which is to the processed, an inlet (6) in the housing (1) for steam-containing milling products for passing on to the pocket (8) and an outlet (12) in the housing (1) for milling products to a steam proof discharge device, said pocket (8) being at least partly open radially outwards, and an outlet in the housing (1) for steam. The rotor pocket (8) is provided with a radially inwards facing opening for steam (14), which can be connected with a steam outlet (15, 16, 17, 18) of the housing (1) at least once per revolution during the rotation of the rotor (2). The invention also relates to a method for treating milling products.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 21, 2004
    Inventor: Lars Obitz
  • Multiple layer composite material consisting of cement-bound concrete and polymer-bound concrete and method for producing the same
    Patent number: 6790544
    Abstract: The present invention relates to a multiple layer composite material and to a method for producing the same. Said multiple layer composite material has at least one layer of cement-bound concrete and at least one layer of polymer-bound concrete. The transition between adjacent layers of cement-bound concrete and polymer-bound concrete has at least the material strength of the less stable one of the concrete layers adjoining the transition. The layer of polymer-bound concrete allows the diffusion of water vapor, but does not allow liquid water to penetrate. The multiple layer composite material can be produced completely in an aqueous system.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: September 14, 2004
    Assignee: F. Von Langsdorff Licensing Limited
    Inventor: Michael Schmitz
  • Compound of intumescent powder and thermoplastic material
    Patent number: 6790893
    Abstract: A compound is provided having the means of intumescence at temperatures above 195° C. to 220° C. The compound is an intumescent powder defined by the molar ratios (2.20 to 3.70) SiO2/(0.20 to 0.35) Li2O: (0.65 to 0.80)(Na2O+K2O) where the coefficients of Li2O and of (Na2O+K2O) total 1.00 and thermoplastic material having a plastic state at less than 195° C. If the thermoplastic contains a halogen, as does Polyvinyl Chloride (PVC) the halogen acts as a flame retardant in the event of combustion and prevents complete burning of the plastic. If there is as filler mixed with the compound which is endothermic this assists with the fire retardant effect of the compound.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: September 14, 2004
    Assignee: Pyrophobic Systems Ltd.
    Inventors: Dat. T. Nguyen, Kevin B. Langille, Dwight E. Veinot, Jorgen O. Bernt
  • Method and apparatus for olfactory stimulation
    Patent number: 6783084
    Abstract: A method and apparatus for delivering aromatic substances for olfactory stimulation, treatment and/or therapy which includes a delivery assembly including a chamber into which air is introduced and subsequently delivered under even pressure through a mixing venturi. A plurality of conveying conduits are selectively communicated with the venturi so that aromatic substances are entrained in the air passing through the venturi to a discharge mask or zone. The conduits communicate with a plurality of containers of aromatic liquids, solids, and semi-solids. The containers are subject to selective introduction of pressurized air by way of a plurality of valves. A system is provided for controlling the operation of the valves to thereby control the substances discharged from the apparatus.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: August 31, 2004
    Inventor: R. Douglas Nelson
  • Closure device for container
    Patent number: 6776314
    Abstract: The invention concerns a device comprising a pourer, adapted to be mounted on the container neck, and an assembly forming a cover adapted to be mounted on said neck and comprising a cap mobile between a first position where it isolates the neck and the pourer from outside and a second position providing access to the neck and the pourer. The assembly forming a cover comprises two catching string rims (411, 412) extending radially inwards from a ring (41), one first string rim (411) being adapted to be engaged with an external flange (26) of the neck (2) while a second string rim (412) is adapted to be engaged with an external flange (36) of the pourer (3), said string rims (411, 412) defining between them a volume (V) for receiving the flanges (26, 36).
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: August 17, 2004
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventor: Philippe Odet
  • Method and apparatus for guiding the harness cords of a Jacquard loom
    Patent number: 6769458
    Abstract: A member for guiding harness cords of a weaving loom harness of Jacquard type which is provided with at least two plates with holes for passage of the cords and which plates are separated by a space adapted to be supplied with gas under pressure. The holes constitute orifices for exhaust of the gas with respect to the space. The guiding members makes it possible to cool the harness cords and to clean the holes through which the harness cords pass.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: August 3, 2004
    Assignee: Staubli Lyon
    Inventor: Jean-Paul Froment
  • Elbow prosthesis
    Patent number: 6767368
    Abstract: An elbow prosthesis which includes a humeral component having a rod extending along a longitudinal axis and this component further includes a generally cylindrical body having a first articulating surface about which an ulnar component is pivotally mounted so as to pivot about a longitudinal axis of the body. A spacing between a plane extending through the longitudinal axis of the body and the longitudinal of the rod of the humeral component is selected to define a desirable spacing therebetween depending upon a patient's morphology.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: July 27, 2004
    Assignee: Tornier SA
    Inventor: Alain Tornier
  • Glenoid component of a shoulder prosthesis and complete shoulder prosthesis incorporating such a component
    Patent number: 6761740
    Abstract: A shoulder prosthesis glenoid component which includes a base adapted to be immobilized on a glenoid cavity of a shoulder, and an element including a convex articulation surface adapted to cooperate with a humeral component of the prosthesis. The element is selectively mounted on the base in a plurality of positions corresponding to different positions of the convex articulation surface with respect to the glenoid cavity.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: July 13, 2004
    Assignee: Tornier
    Inventor: Alain Tornier
  • Planar diaphragm loudspeakers with non-uniform air resistive loading for low frequency modal control
    Patent number: 6760462
    Abstract: A loudspeaker, and particularly, a woofer, including a flat diaphragm transducer having at least one stator plate for carrying magnetic elements in close proximity to a low stiffness diaphragm wherein a piston-like motion of the diaphragm is achieved by creating pressure zones adjacent the diaphragm to improve an acoustic coupling and increase acoustic output for a given size of diaphragm by the provision of non-uniformly spaced openings in the at least one stator plate which are selectively spaced to control low frequency diaphragm resonance modes.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: July 6, 2004
    Assignee: Eminent Technology Incorporated
    Inventor: F. Bruce Thigpen
  • Method and arrangement for purification of water
    Patent number: 6758973
    Abstract: A method and means for cleaning surface or waste water in which the water is supplied to a sludge separator (14) for the separation of suspendable material. After the sludge separator the water is supplied to a biostep filter in which pollution is deposited at at least one filter body (42, 48) of permeable material of a type on which a bioskin may grow to create microprocesses without the permeability decreases and thereafter further to a sorbent filter (28, 40), whereby the water after this flows to a recipient. A pump (24, 124) is connected to the plant, preferably between the biostep filter (18, 42) and the sorbent filter (28, 40).
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: July 6, 2004
    Inventor: Pontus Schwalbe
  • Biological purification of water to any degree up to and drinking water
    Patent number: 6755972
    Abstract: An installation and a method for water purification which includes sequentially: A first section where the waters enter the installation and where the incoming waters come into contact with living microscopical and macroscopical organisms in order to achieve the removal from the waters, as sludge, water contents in suspension, whether such contents existed in the incoming waters or whether such contents were produced after the incoming waters entered the works and they came in contact with living organisms. A second section comprising a series of structures like structure which are connected so that each one drains its water into a following one, while each structure of the type of structure contains a layer of inert material into which grow suitable plants which utilize for their growth contents within the incoming waters so that such contents are removed from the flowing waters.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: June 29, 2004
    Inventor: Panagiotis Kouloumbis
  • Stabilized aspirin compositions and method of preparation for oral and topical use
    Patent number: RE38576
    Abstract: Aspirin compositions for oral and topical use are stabilized by reaction with potassium hydroxide.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: August 31, 2004
    Inventor: Natalie Blahut
  • Display for an exhale breath analysis apparatus
    Patent number: D496667
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: September 28, 2004
    Assignee: Aerocrine AB
    Inventor: Daniel Hoglund
  • High pressure propane gas cooker
    Patent number: D496820
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: October 5, 2004
    Inventor: Kenneth E. Wilder
  • Desk with chair
    Patent number: D497487
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: October 26, 2004
    Inventors: Shin Azumi, Tomoko Azumi