Rotating Drum Patents (Class 34/499)
  • Patent number: 6021581
    Abstract: A method of drying a fiber web in a paper-making machine includes the step of providing a heated dryer roll which carries the fiber web. The dryer roll has a shell consisting essentially of compacted graphite cast iron. The dryer roll is rotated such that the dryer roll has a peripheral speed which is greater than approximately 6000 feet per minute.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: February 8, 2000
    Assignee: Voith Sulzer Paper Technology North America, Inc.
    Inventor: Edwin X. Graf
  • Patent number: 6004468
    Abstract: An apparatus for processing a solid-liquid material comprises a housing formed with a series of interconnected chambers defined by chamber walls with at least two drums mounted in series within the chambers. Each chamber receives one of the at least two drums for rotatable movement therein. Each chamber and the associated drum are dimensioned to define a region therebetween to retain the solid-liquid material. The regions of adjacent chambers communicate with each other to define a continuous passage from drum to drum through the apparatus. An inlet in the housing admits the solid-liquid material to the passage, and an outlet permits extraction of a processed solid-liquid material from the passage. Each drum rotates in a direction opposite to the adjacent drum to advance the solid-liquid material through the passage from drum to adjacent drum in a sinuous path such that the curvature of the solid-liquid material changes when passing from drum to adjacent drum.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: December 21, 1999
    Inventors: Adrian Barbulescu, Joana Barbulescu
  • Patent number: 5915815
    Abstract: An apparatus method of separating organic mass into its component parts in environmentally contained hygienic conditions at high thermal efficiency. One example is extraction of aromatic oils from citrus fruit. Organic materials derive from plants which contain (A) dry matter; (B) aqueous solutions and (C) secretions. The apparatus and method separates organic mass into these three components to create positive valuable products, frequently from negative value wastes. The apparatus and method utilizes a drying medium comprising a mixture of self derived superheated steam generated from part of the moisture given off by the material itself and air. The apparatus is fully enclosed, thus being environmentally benign and eliminating odors and deleterious emissions common to non-contained and/or direct fired dryers.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: June 29, 1999
    Assignee: Responsible Recycling Limited
    Inventors: Philip Moore, David J Dickinson
  • Patent number: 5884418
    Abstract: A process and system for impregnating garments with insect repellent, the ocess including the steps of placing the garments in a first machine and tumbling the garments therein, introducing into the first machine a mixture of liquid insect repellent and water so as to spray the mixture onto the tumbling garments, terminating the introduction of the mixture into the first machine and continuing the tumbling of the garments therein, terminating the tumbling of the garments in the first machine, and placing the garments in a second machine and tumble drying the garments therein; and the system comprising a reservoir for a mixture of the repellent in liquid form and water, a first machine for receiving and retaining the garments and tumbling the garments, a spray nozzle in the first machine for directing a spray of the mixture onto the garments during tumbling thereof, a conduit extending from the reservoir to the spray nozzle, and a pump in the conduit for flowing the mixture from the reservoir to the spray nozz
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: March 23, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Bartley F. McNally
  • Patent number: 5740617
    Abstract: A rotary drum dryer dries a slurry into discrete solid particles. The dryer contains three long horizontal cylinders: an outer cylinder, a perforated cylinder inside the outer cylinder, and an inner cylinder inside the perforated cylinder. As the cylinders rotate, slurry in the outer cylinder is compressed through the perforated cylinder by the inner cylinder and deposited onto the inner wall surface of the outer cylinder in discrete masses. The masses are dried as the cylinder rotates and then are removed by a scraper and conveyed outside the dryer for further treatment and/or packaging.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: April 21, 1998
    Inventor: Norman P. Rittenhouse
  • Patent number: 5669157
    Abstract: A apparatus for separating pieces of laundry, comprising a drum which is rotatable about a substantially horizontal axis and with an open front and an open rear, which drum is accommodated in a housing, in which the rear of the drum is almost closed off by a stationary wall, which is provided in the middle with an engaging opening in which engaging means for engaging and feeding through the pieces of laundry are arranged, and in that in the housing air conveying means are provided for transporting the pieces of laundry from the front to the rear of the drum. A method for separating pieces of laundry with the help of the apparatus according to the invention.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: September 23, 1997
    Assignee: Amko International B.V.
    Inventor: Gerardus Henricus Maria Kuipers
  • Patent number: 5617649
    Abstract: A device and method for drying a fluorescent material are provided. The device includes a container having a predetermined space for containing a fluorescent material, a first driver for rotating the container, a heater for heating the container, a vacuum unit for creating a partial vacuum in the container to discharge moist air from the container, a supplier for supplying dry air to the container, an exhausting unit for exhausting the fluorescent material dried in the container, and a controller for controlling the respective device and the first dryer. The drying method includes the steps of placing a cleaned fluorescent material into a dryer, heating the dryer while rotating the dryer, injecting dry air into the dryer and exhausting moist air from the dryer, and vacuum-transferring the fluorescent material from the dryer to a predetermined storage tank.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: April 8, 1997
    Assignee: Samsung Display Devices Co., Ltd.
    Inventor: Won-geun Joo
  • Patent number: 5555645
    Abstract: A domestic clothes dryer is operated in both a forward and a reverse direction. The dryer blower has a reduced air flow rate in the reverse direction. The reduced air flow in the reverse direction and the reverse tumbling increases the heat transferred to the articles being dried, thereby improving dryer performance.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: September 17, 1996
    Assignee: White Consolidated Industries, Inc.
    Inventor: Dan F. Joslin
  • Patent number: 5537761
    Abstract: A method for controlling the drying process of a vortex-type washing machine capable of accommodating a laundry article for drying therein comprises the steps of (A) heating an ambient air by a heater, (B) driving a motor in a forward direction, (C) driving the motor in a reverse direction to the forward direction, and (D) repeating the steps (B) to (C) until the laundry article become dried to a desired dry level, wherein each of the steps (B) and (C) includes the steps of (a) turning on the motor to rotate the pulsator to spread the laundry article; (b) turning off the motor to pause the rotation of the pulsator to thereby help the settlement of the laundry article; and (c) repeating the steps (a) to (b) at least N number of times.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: July 23, 1996
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Seung-Sub Oh
  • Patent number: 5440825
    Abstract: A horizontal dryer for solid material is the subject of the present invention. The dryer consists of a horizontal drum rotated about its horizontal axis, containing flighting around its periphery, and coupled with a heat source, all of which is well known in the prior art. The dryer of the present invention, however, both receives and discharges material at only one end and provides an inner tubular member, centrally mounted coaxially in the drum which member presents a preheating chamber. Material to be dried is first fed into the inner tubular member at one end of the drum and is moved through the tubular member by a plurality of curved flights thus preheating the material in preparation for drying. The material is moved through the preheating chamber to the opposite closed end of the drum where it is deposited into the primary drying chamber of the drum. Flighting in the drum moves the material back toward the inlet end of the drum as it continues to be heated and dried.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: August 15, 1995
    Assignee: Beloit Technologies, Inc.
    Inventors: Stanley P. Thompson, Kenneth J. Zimmerman
  • Patent number: 5431560
    Abstract: A device for supplying gas to a rotary cylinder by means of a slip ring channel is described, a relative movement between rotating part and stationary part of the slip ring being permitted.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: July 11, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Helker, Matthias Weis
  • Patent number: 5388348
    Abstract: A drying machine has a predrying operation. In the predrying operation before heated air is supplied to the drying chamber to dry clothes in the drying chamber, the drum repeats the rotation of the clockwise and counterclockwise alternately in a short cycle, so that entwined clothes are got loose. During the predrying operation, cool air is supplied to the drying chamber. Then the heated air is supplied to the drying chamber, so that clothes are dried.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: February 14, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Miho Tanaka, Kinya Hayashi
  • Patent number: 5322367
    Abstract: A process for the production of hot mix asphalt (HMA) by the treatment of virgin material alone or adding reclaimed or recycled asphalt pavement (RAP) (up to 100% of the HMA). The HMA is first heated in either a parallel or a counter flow rotating drum which is supplied with hot combustion gases generated by a remote low NO.sub.x burner. The process is controlled by a micro-processor which controls RAP temperature, mixture gradation, emissions and production rate as a function of measured drum conditions such as temperature at the drum inlet, drum speed, drum slope, drum RPM, output hydrocarbons, drum gas outlet temperature, and amount of aggregate added.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: June 21, 1994
    Assignee: Cyclean, Inc.
    Inventors: Robert H. Nath, John Wiley, Robert Erickson, Carl R. Hutchinson, Mike Miles
  • Patent number: 5309587
    Abstract: A cleaning process for industrial rags to remove petroleum-based solvents in an environmentally safe manner comprises a series of steps. The industrial rags are initially subjected to high speed forces in a rotary drum to physically extract liquid solvent. The high speed extraction step is conducted while preferably maintaining a temperature within the drum of below the flash point of the petroleum-based solvent. Next, the rags are tumbled while being subjected to intermittent forced blasts of cold air and hot air to vaporize solvent remaining in the rags. The vapors are routed from the drum and condensed. The extracted liquid solvent and condensed solvent vapors are both routed to a waste solvent collection line. The industrial rags are finally dried to produce clean rags suitable for reuse.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: May 10, 1994
    Inventor: James V. Fierro