Patents by Inventor Richard A. Wallace

Richard A. Wallace has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8620467
    Abstract: A method and apparatus for assembling a complex product in a parallel process system wherein a collection of components are provided for assembling the complex product. The present invention involves transferring the collection of components to one of a plurality of similar computerized assembly cells through the use of a transport system. The collection of components is automatically assembled into the complex product through the use of the computerized assembly cells. The complex product is then transferred from one of the assembly cells to a computerized test cell, where the complex product is tested to ensure for the proper dimensioning and functioning of the complex product. The complex product is then transferred from the test cell via the transport system to either a part reject area or conveyor, if the product is defective, or to an automatic dunnage load or part return system, if the product is not defective.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: December 31, 2013
    Assignee: Comau Inc.
    Inventors: Richard A. Wallace, John Graham, Theodore Robert Brown
  • Publication number: 20130158696
    Abstract: A method and apparatus for assembling a complex product in a parallel process system wherein a collection of components are provided for assembling the complex product. The present invention involves transferring the collection of components to one of a plurality of similar computerized assembly cells through the use of a transport system. The collection of components is automatically assembled into the complex product through the use of the computerized assembly cells. The complex product is then transferred from one of the assembly cells to a computerized test cell, where the complex product is tested to ensure for the proper dimensioning and functioning of the complex product. The complex product is then transferred from the test cell via the transport system to either a part reject area or conveyor, if the product is defective, or to an automatic dunnage load or part return system, if the product is not defective.
    Type: Application
    Filed: June 22, 2012
    Publication date: June 20, 2013
    Applicant: COMAU INC.
    Inventors: Richard A. Wallace, John Graham, Theodore Robert Brown
  • Patent number: 8229586
    Abstract: A method and apparatus for assembling a complex product in a parallel process system wherein a collection of components are provided for assembling the complex product. The present invention involves transferring the collection of the components to one of a plurality of similar computerized assembly cells through the use of a transport system. The collection of components is automatically assembled into the complex product through the use of the computerized assembly cells. The complex product is then transferred from one of the assembly cells to a computerized test cell, where the complex product is tested to ensure for the proper dimensioning and functioning of the complex product. The complex product is then transferred from the test cell via the transport system to either a part reject area or conveyor, if the complex product is defective, or to an automatic dunnage load or part return system, if the complex product is not defective.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: July 24, 2012
    Assignee: Comau Inc.
    Inventors: Richard A. Wallace, John Graham, Theodore Robert Brown
  • Patent number: 5971137
    Abstract: A cantilevered roller assembly for a conveyor system includes a non-rotating shaft, a sprocket, a roller, a sleeve, and a clutching spring. The non-rotating shaft has a first end with a first retention feature and second end with a second retention feature. The sprocket is rotatably disposed over the shaft. The roller is rotatably disposed over the shaft adjacent the sprocket. The sleeve is slidably and rotatably disposed over the non-rotating shaft. The sleeve has a first end in non-rotatable engagement with one of the sprocket and the roller on a first end and has a second end with an adjusting nut threadably disposed thereover. The clutching spring is axially disposed between the second end of the sleeve and the second end of the shaft. The clutching spring induces a clutching load between the sprocket and the roller. Rotation of the nut varies the clutching load between the sprocket and the roller.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: October 26, 1999
    Assignee: Comau North America, Inc.
    Inventors: Patrick J. Grant, Richard A. Wallace
  • Patent number: 4341518
    Abstract: An air driven dental handpiece is disclosed for rotating a bur in an angled housing that utilizes an arrangement of cooling water, chip air, and light services which are configured at their terminus into a form resembling a human eye. These services are integrated into an oval shape which is totally contained within the handle structure of the handpiece, and exit from the handle immediately adjacent the housing.In the handpiece, light is transmitted by optic fibers that are enclosed within a rigid, metallic sheath. Light is provided by a flexible fiber optic which abuts the entrance face of the handpiece sheath in a readily detachable, threaded coupling. A spring in the coupling presses the cable fibers firmly against the sheath fibers for maximum light transmission, and also holds the cable securely in the coupling.A flexible, multi-cavity supply hose includes four cavities which provide the five services of turbine air, turbine exhaust, water, chip air, and light.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: July 27, 1982
    Inventor: Richard A. Wallace
  • Patent number: 4341520
    Abstract: A dental handpiece is disclosed for rotating a bur in a housing having an enclosing cap, utilizing an air-driven, axial-flow turbine mounted on a shaft between two ball bearings, the assembly forming a removeable cartridge. Air is directed to the turbine through a combination plenum and nozzle ring. The cartridge is acoustically isolated from the cap and housing by two elastomeric rings having separate radial segments and axial pads. The radial segments support the cartridge bearings, prevent outer race rotation, compensate for dimensional variation of the elastomeric rings and cap and housing bores, and provide a means to vary suspension stiffness. The axial pads of the elastomeric ring around the front bearing provide a bearing pre-load force independent of the radial forces exerted on the bearing.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: July 27, 1982
    Inventor: Richard A. Wallace
  • Patent number: 4336284
    Abstract: A method of pretreating coal fly ash is presented having an essentially monomolecular partial coating of under 100 angstroms thickness for obtaining improved compatibility with organic polymers and resins. The partial coverage is selected from the long-chain organic group including organotitanates, organofunctional silanes and stearic acids, with the former being preferable. The amount of chemical pretreatment compound required is preferably from 0.01 to 0.09 parts, per 100 parts of coal fly ash.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: June 22, 1982
    Inventor: Richard A. Wallace
  • Patent number: 4313743
    Abstract: An electrolytic device adapted for mounting on the interior wall of a container housing sorbent chemicals for detection and display of moisture content. A sandwich or tab-type probe includes superhydroscopic MgClO.sub.4 or CaSO.sub.4 particles which resist electrical current flow when dry and have a higher affinity for moisture than the sorbent chemicals in cartridges or filters. Moisture intrusion is drawn to the anhydrous MgClO.sub.4 or CaSO.sub.4 particles changing their ohmic resistance and thereby enabling visual and nondestructive detection of the moisture intrusion into the container or cartridge. The probe is spaced away from the sorbent chemicals avoiding the transfer of mechanical stresses and any additional pressure drop through the sorbents, thereby permitting the device to be used in combination with a wide range of sealed containers and air filters.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: February 2, 1982
    Inventor: Richard A. Wallace
  • Patent number: 4247393
    Abstract: A hemodialysis assist device including a normally nonflowing aqueous sorbents slurry medium chamber and at least one blood flowthrough passage separated therefrom by a semipermeable membrane of the flat plate, pleated flat plate, hollow fiber or hemicapillary type. The sorbents medium is in the form of a thixotropic network slurry of fine charcoal powder, fine phosphate ion-binding particles, or both. The sorbent particles are substantially retained in place even during ultrafiltration of excess body fluids across the membrane. This retention is assisted by the addition of a small quantity of fine cellulose-based polymer binder capable of forming an interlocking thixotropic network with the sorbents. The assist device may be used in conjunction with a conventional hemodialyzer to reduce dialysis treatment time, as well as to effectively remove urea. In addition, this blood detoxification device can be used also to treat the problems of hyperphosphatemia and hyperlipidemia.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: January 27, 1981
    Inventor: Richard A. Wallace
  • Patent number: 4209392
    Abstract: Portable hepatic-assist closed loop method and apparatus utilizing hemofiltration membrane and sterilizable disposable sorbents cartridge for adsorption of hepatic toxins.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: June 24, 1980
    Inventor: Richard A. Wallace
  • Patent number: 4082546
    Abstract: A method is provided for recovering precious metals such as gold, palladium, rhodium and platinum as well as copper and zinc from respective waste solutions laden with such metals, such as stop baths, stabilizers, solution tailings, and waste plating drag out and rinse solutions. The metal ion-laden solutions are treated with mechanically worked narrow aluminum foil strips, threads or chaff, substantially completely covered with a few microns thick imperfect layer of aluminum oxide. The resulting metal-free solution may be repeatedly used and restored.The method provides high metal recovery efficiency, and little maintenance, while providing the capability for repetitive use of various solutions employed in plating and other processes.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: April 4, 1978
    Inventor: Richard A. Wallace
  • Patent number: 4015489
    Abstract: A dental handpiece and a wrench adapted to be used in combination with the handpiece for securing a dental bur in the handpiece. The handpiece includes a turbine housing, a rotor shaft and a collet threadedly secured in the rotor shaft. The wrench has a plurality of fingers which are adapted to be received in the rotor shaft, and a shaft rotatably mounted in a tube from which the fingers project. The wrench shaft is adapted to threadedly advance or retract the collet relative to the rotor shaft.
    Type: Grant
    Filed: July 25, 1975
    Date of Patent: April 5, 1977
    Assignee: Star Dental Manufacturing Co., Inc.
    Inventors: Nathaniel H. Lieb, Franklin W. Kerfoot, Jr., Richard A. Wallace
  • Patent number: 4013616
    Abstract: A mixed polymeric resin including a comminuted filler from the front end of a solid waste system in a continuous phase of a resinous adhesive binder (e.g., polyethylene). The filler includes glass, cellulose, inorganic oxides and mixed polymer resins. A method for forming the filled resin.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: March 22, 1977
    Inventor: Richard A. Wallace
  • Patent number: 4008077
    Abstract: A method is provided for recovering metallic silver from used silver-laden solutions, such as spent photographic fix, stop baths, stabilizers, electrolytic fix tailings, and waste silver-plating drag out and rinse solutions. The silver-laden solutions are treated with mechanically worked narrow aluminum foil strips, threads or chaff, substantially completely covered with a few microns thick imperfect layer of aluminum oxide. The resulting silver-free solution may then be chelated with a suitable chelating agent to provide a rejuvenated solution, which may be repeatedly used and restored.The method provides high silver recovery efficiency, and little maintenance, while providing the capability or repetitive use of various solutions employed in photographic development, where silver is obtained.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: February 15, 1977
    Inventor: Richard A. Wallace
  • Patent number: 3991005
    Abstract: A composition comprising an intimate bonded mixture of (a) 30-90 parts by weight of a particulate reinforcement filler formed of the pyrolysis or incineration residue of industrial or municipal solid waste products, and (b) 10-70 parts by weight of a resinous thermosetting (e.g., polyester or epoxy) or thermoplastic (e.g., nylon) adhesive polymer. The filler comprises a combination of silica and alumina and for pyrolysis residue, carbon. The individual particles are characterized by non-porous structure and irregular rough shapes, having a heterogeneous distribution and a size less than 50 microns.
    Type: Grant
    Filed: January 31, 1974
    Date of Patent: November 9, 1976
    Inventor: Richard A. Wallace
  • Patent number: 3947966
    Abstract: A dental handpiece and a wrench adapted to be used in combination with the handpiece for securing a dental bur in the handpiece. The handpiece includes a turbine housing, a rotor shaft and a collet threadedly secured in the rotor shaft. The wrench has a plurality of fingers which are adapted to be received in the rotor shaft, and a shaft rotatably mounted in a tube from which the fingers project. The wrench shaft is adapted to threadedly advance or retract the collet relative to the rotor shaft.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: April 6, 1976
    Assignee: Star Dental Manufacturing Co., Inc.
    Inventors: Nathaniel H. Lieb, Franklin W. Kerfoot, Jr., Richard A. Wallace
  • Patent number: RE29817
    Abstract: A dental pin used in building a superstructure on a tooth having a substantial portion thereof that has been removed. The pin comprises a shaft having a flute at the lower end thereof. The remainder of the shaft is threaded. The flute taps a hole that has previously been drilled in the tooth, and the threads on the shaft are retained in the tapped hole. Thus, the shaft is self-tapping. The shaft also includes an integral handle which permits the rotating of the pin into the tooth. A plurality of the pins are inserted in the tooth in a non-parallel relationship, and a superstructure is built on exposed portions of the pins. A fracture point is formed on each pin in order to break the head off after the pin has been inserted.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: October 31, 1978
    Assignee: Star Dental Manufacturing Co. Inc.
    Inventors: Nathaniel H. Lieb, Richard A. Wallace