Patents by Inventor Yee Chak

Yee Chak 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: 8348188
    Abstract: A mixing system for a fluid tank is described, the system having a drive motor, an impeller, a shroud enclosing the impeller and a cutter mounted on the shroud to cut solids. The shroud is open at inlet and discharge ends for drawing in and discharging fluid from the tank. A recess is provided on the internal surface of the shroud, wherein the cutter is adjustably positioned within the recess. The cutter is detachable from the recess to allow replacement. In use, homogeneity is maintained in a slurry contained within the tank by submerging the impeller such that the cutter cooperates with the impeller to cut solids within the slurry, drawing tank contents into the impeller at the inlet, cutting material between the cutter and blade, and then discharging the material.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: January 8, 2013
    Assignee: Vaughan Company, Inc.
    Inventors: Glenn R. Dorsch, Kent H. Keeran, Yee Chak
  • Publication number: 20120061500
    Abstract: A mixing system for a fluid tank is described, the system having a drive motor, an impeller, a shroud enclosing the impeller and a cutter mounted on the shroud to cut solids. The shroud is open at inlet and discharge ends for drawing in and discharging fluid from the tank. A recess is provided on the internal surface of the shroud, wherein the cutter is adjustably positioned within the recess. The cutter is detachable from the recess to allow replacement. In use, homogeneity is maintained in a slurry contained within the tank by submerging the impeller such that the cutter cooperates with the impeller to cut solids within the slurry, drawing tank contents into the impeller at the inlet, cutting material between the cutter and blade, and then discharging the material.
    Type: Application
    Filed: October 14, 2011
    Publication date: March 15, 2012
    Applicant: Vaughan Company, Inc.
    Inventors: Glenn R. Dorsch, Kent H. Keeran, Yee Chak
  • Patent number: 8118244
    Abstract: A mixing system for a fluid tank is described herein, the system having a drive motor, an impeller capable of being submersed, a shroud having a sidewall enclosing the impeller, and a cutter mounted on the shroud and cooperating with a blade of the impeller to cut solids within the shroud. The shroud is open at both an inlet end and a discharge end for drawing in and discharging fluid from the tank. A recess is provided on the internal surface of the shroud, wherein the cutter is adjustably positioned within the recess. Additionally, the cutter is also detachable from the recess so that it may be replaced when worn.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: February 21, 2012
    Assignee: Vaughan Company, Inc.
    Inventors: Glenn R. Dorsch, Kent H. Keeran, Yee Chak
  • Publication number: 20110220746
    Abstract: A mixing system for a fluid tank is described herein, the system having a drive motor, an impeller capable of being submersed, a shroud having a sidewall enclosing the impeller, and a cutter mounted on the shroud and cooperating with a blade of the impeller to cut solids within the shroud. The shroud is open at both an inlet end and a discharge end for drawing in and discharging fluid from the tank. A recess is provided on the internal surface of the shroud, wherein the cutter is adjustably positioned within the recess. Additionally, the cutter is also detachable from the recess so that it may be replaced when worn.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Applicant: Vaughan Co., Inc.
    Inventors: Glenn R. Dorsch, Kent H. Keeran, Yee Chak
  • Publication number: 20040200191
    Abstract: The present description discusses apparatus and methods for applying straps around a bundle of objects by applying a variable force to tension the strap around the bundle of objects and then actuating a series of cams to control the sealing of the strap around the bundle of objects. The strap is bonded together by the insertion of a heating element between the strap ends to activate the adhesive thereon. The strapping machine for accomplishing the above method is configured with a feed and tension unit configured to provide a simplified “V-shaped” strap path that reduces bending of the strap, reduces friction on the strap, and minimizes other strap feeding difficulties. The machine is further comprised of a track assembly configured with a track channel having a plurality of biased covers. The covers are biased in a closed position until tension is applied to the strap, which forces the covers to pivot open and release the strap around the bundle of objects.
    Type: Application
    Filed: January 23, 2004
    Publication date: October 14, 2004
    Applicant: Enterprises International, Inc.
    Inventors: Ross Armstrong, Yee Chak, Donald A. Smith